Table of Contents

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-Q

(Mark one)
xQUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended DecemberMarch 31, 20172019
or
¨TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from             to             
Commission File Number 000-09992
KLA-Tencor Corporation
(Exact name of registrant as specified in its charter)
Delaware 04-2564110
(State or other jurisdiction of
incorporation or organization)
 
(I.R.S. Employer
Identification No.)
   
One Technology Drive, Milpitas, California 95035
(Address of Principal Executive Offices) (Zip Code)
(408) 875-3000
(Registrant’s telephone number, including area code) 
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.   Yes  x    No  ¨
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).   Yes  x    No  ¨
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filer x
   
Accelerated filer ¨
Non-accelerated filer ¨
 (Do not check if a smaller reporting company) 
Smaller reporting company ¨
    
Emerging growth company ¨
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨    No  x
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, $0.001 par value per shareKLACThe Nasdaq Stock Market, LLC
The Nasdaq Global Select Market

As of January 12, 2018,April 19, 2019, there were 156,620,125161,620,262 shares of the registrant’s Common Stock, $0.001 par value, outstanding.

INDEX
 
  
Page
Number
   
PART IFINANCIAL INFORMATION 
Item 1 
 
 
 
 
 
Item 2
Item 3
Item 4
   
PART IIOTHER INFORMATION 
Item 1
Item 1A
Item 2
Item 3
Item 4
Item 5
Item 6
   
   


 

PART I. FINANCIAL INFORMATION

ITEM 1.FINANCIAL STATEMENTS
KLA-TENCOR CORPORATION
Condensed Consolidated Balance Sheets
(Unaudited)
 
(In thousands)December 31,
2017
 June 30,
2017
March 31,
2019
 June 30,
2018
ASSETS      
Current assets:      
Cash and cash equivalents$1,073,394
 $1,153,051
$1,092,163
 $1,404,382
Marketable securities1,684,796
 1,863,689
805,105
 1,475,936
Accounts receivable, net740,903
 571,117
958,021
 651,678
Inventories787,971
 732,988
1,317,260
 931,845
Other current assets66,929
 71,221
270,079
 85,159
Total current assets4,353,993
 4,392,066
4,442,628
 4,549,000
Land, property and equipment, net281,634
 283,975
411,852
 286,306
Goodwill350,023
 349,526
2,172,902
 354,698
Deferred income taxes193,740
 291,967
205,820
 193,200
Purchased intangibles, net16,563
 18,963
Purchased intangible assets, net1,694,313
 19,333
Other non-current assets211,315
 195,676
260,090
 236,082
Total assets$5,407,268
 $5,532,173
$9,187,605
 $5,638,619
LIABILITIES AND STOCKHOLDERS’ EQUITY   
LIABILITIES, NON-CONTROLLING INTEREST AND STOCKHOLDERS’ EQUITY   
Current liabilities:      
Accounts payable$149,844
 $147,380
$206,248
 $169,354
Deferred system revenue228,745
 
Deferred service revenue182,119
 69,255
Deferred system profit248,829
 180,861

 279,581
Unearned revenue64,256
 65,507
Current portion of long-term debt
 249,983
249,997
 
Other current liabilities703,619
 649,431
833,747
 696,080
Total current liabilities1,166,548
 1,293,162
1,700,856
 1,214,270
Non-current liabilities:      
Long-term debt2,486,426
 2,680,474
3,172,649
 2,237,402
Unearned revenue67,927
 59,713
Deferred tax liability762,303
 1,197
Deferred service revenue90,610
 71,997
Other non-current liabilities460,742
 172,407
575,599
 493,242
Total liabilities4,181,643
 4,205,756
6,302,017
 4,018,108
Commitments and contingencies (Note 12 and Note 13)
 
Commitments and contingencies (Note 13 and Note 14)
 
Stockholders’ equity:      
Common stock and capital in excess of par value548,691
 529,283
1,989,914
 617,999
Retained earnings729,456
 848,457
928,086
 1,056,445
Accumulated other comprehensive income (loss)(52,522) (51,323)(68,907) (53,933)
Total KLA-Tencor stockholders’ equity2,849,093
 1,620,511
Non-controlling interest in consolidated subsidiaries36,495
 
Total stockholders’ equity1,225,625
 1,326,417
2,885,588
 1,620,511
Total liabilities and stockholders’ equity$5,407,268
 $5,532,173
$9,187,605
 $5,638,619
 
See accompanying notes to condensed consolidated financial statements (unaudited).

KLA-TENCOR CORPORATION
Condensed Consolidated Statements of Operations
(Unaudited)
 
Three months ended Six months endedThree months ended Nine months ended
December 31, December 31,March 31, March 31,
(In thousands, except per share amounts)2017 2016 2017 20162019 2018 2019 2018
Revenues:              
Product$761,587
 $683,733
 $1,522,374
 $1,245,486
$793,224
 $797,797
 $2,474,652
 $2,320,171
Service214,235
 193,152
 423,029
 382,072
304,087
 223,497
 835,817
 646,526
Total revenues975,822
 876,885
 1,945,403
 1,627,558
1,097,311
 1,021,294
 3,310,469
 2,966,697
Costs and expenses:              
Costs of revenues347,334
 318,507
 700,783
 596,343
486,945
 368,356
 1,276,592
 1,068,475
Research and development156,745
 130,912
 303,477
 260,145
184,887
 153,239
 504,320
 456,626
Selling, general and administrative105,546
 93,532
 213,259
 187,920
182,184
 113,237
 409,084
 325,934
Interest expense27,372
 30,624
 57,948
 61,356
31,187
 28,119
 84,087
 86,067
Other expense (income), net(8,482) (3,535) (13,523) (7,271)(9,282) (7,640) (28,535) (19,847)
Income before income taxes347,307
 306,845
 683,459
 529,065
221,390
 365,983
 1,064,921
 1,049,442
Provision for income taxes481,626
 68,594
 536,842
 112,713
28,745
 59,102
 107,232
 595,944
Net income (loss)$(134,319) $238,251
 $146,617
 $416,352
Net income (loss) per share:       
Net income192,645
 306,881
 957,689
 453,498
Less: Net loss attributable to non-controlling interest(83) 
 (83) 
Net income attributable to KLA-Tencor$192,728
 $306,881
 $957,772
 $453,498
Net income per share attributable to KLA-Tencor       
Basic$(0.86) $1.52
 $0.94
 $2.66
$1.23
 $1.96
 $6.20
 $2.90
Diluted$(0.86) $1.52
 $0.93
 $2.65
$1.23
 $1.95
 $6.17
 $2.88
Cash dividends declared per share$0.59
 $0.54
 $1.18
 $1.06
Weighted-average number of shares:              
Basic156,587
 156,335
 156,707
 156,232
156,349
 156,221
 154,561
 156,547
Diluted156,587
 157,123
 157,688
 157,071
157,182
 157,201
 155,310
 157,539

See accompanying notes to condensed consolidated financial statements (unaudited).

KLA-TENCOR CORPORATION
Condensed Consolidated Statements of Comprehensive Income (Loss)
(Unaudited)

Three months ended Six months endedThree months ended Nine months ended
December 31, December 31,March 31, March 31,
(In thousands)2017 2016 2017 20162019 2018 2019 2018
Net income (loss)$(134,319) $238,251
 $146,617
 $416,352
Net income$192,645
 $306,881
 $957,689
 $453,498
Other comprehensive income (loss):              
Currency translation adjustments:              
Change in currency translation adjustments4,821
 (11,305) 6,379
 (7,381)(1,031) 4,238
 (5,104) 10,617
Change in income tax benefit or expense(1,836) 1,086
 (2,339) 1,868
442
 (667) 442
 (3,006)
Net change related to currency translation adjustments2,985
 (10,219) 4,040
 (5,513)(589) 3,571
 (4,662) 7,611
Cash flow hedges:              
Change in net unrealized gains or losses697
 13,969
 1,141
 12,131
(1,379) (581) (6,567) 560
Reclassification adjustments for net gains or losses included in net income (loss)(963) 1,305
 (3,081) 2,684
Reclassification adjustments for net gains or losses included in net income(946) (694) (3,719) (3,775)
Change in income tax benefit or expense78
 (5,494) 676
 (5,329)461
 369
 1,641
 1,045
Net change related to cash flow hedges(188) 9,780
 (1,264) 9,486
(1,864) (906) (8,645) (2,170)
Net change related to unrecognized losses and transition obligations in connection with defined benefit plans(59) 819
 (93) 1,064
438
 (28) 993
 (121)
Available-for-sale securities:              
Change in net unrealized gains or losses(5,863) (7,037) (5,196) (9,914)3,922
 (5,723) 8,681
 (10,919)
Reclassification adjustments for net gains or losses included in net income (loss)69
 (30) 63
 (234)
Reclassification adjustments for net gains or losses included in net income313
 (2) 1,263
 61
Change in income tax benefit or expense1,315
 1,164
 1,251
 1,640
(680) 1,333
 (1,759) 2,584
Net change related to available-for-sale securities(4,479) (5,903) (3,882) (8,508)3,555
 (4,392) 8,185
 (8,274)
Other comprehensive income (loss)(1,741) (5,523) (1,199) (3,471)1,540
 (1,755) (4,129) (2,954)
Total comprehensive income (loss)$(136,060) $232,728
 $145,418
 $412,881
Comprehensive loss attributable to non-controlling interest(83) 
 (83) 
Total comprehensive income attributable to KLA-Tencor$194,268
 $305,126
 $953,643
 $450,544

See accompanying notes to condensed consolidated financial statements (unaudited).

KLA-TENCOR CORPORATION
Condensed Consolidated Statements of Stockholders’ Equity
(Unaudited)
 
Common Stock and
Capital in Excess of
Par Value
 
Retained
Earnings
(Accumulated Deficit)
 
Accumulated
Other
Comprehensive
Income (Loss)
 
Total KLA-Tencor
Stockholders’
Equity
 Non-controlling interest Total Stockholders' Equity
(In thousands, except per share amounts)Shares Amount 
Balance as of June 30, 2018156,048
 $617,999
 $1,056,445
 $(53,933) $1,620,511
 $
 $1,620,511
Adoption of ASC 606
 
 (21,215) 75
 (21,140) 
 (21,140)
Reclassification of stranded tax effects
 
 10,920
 (10,920) 
 
 
Balance as of July 1, 2018156,048
 617,999
 1,046,150
 (64,778) 1,599,371
 
 1,599,371
Net income
 
 395,944
 
 395,944
 
 395,944
Other comprehensive income
 
 
 8,611
 8,611
 
 8,611
Net issuance under employee stock plans332
 (26,961) 
 
 (26,961) 
 (26,961)
Repurchase of common stock(2,781) (11,010) (296,777) 
 (307,787) 
 (307,787)
Cash dividends ($0.75 per share) and dividend equivalents declared
 
 (117,947) 
 (117,947) 
 (117,947)
Stock-based compensation expense
 16,138
 
 
 16,138
 
 16,138
Balance as of September 30, 2018153,599
 596,166
 1,027,370
 (56,167) 1,567,369
 
 1,567,369
Net income
 
 369,100
 
 369,100
 
 369,100
Other comprehensive income
 
 
 (14,280) (14,280)   (14,280)
Net issuance under employee stock plans321
 17,323
 
 
 17,323
 
 17,323
Repurchase of common stock(2,556) (9,919) (232,482) 
 (242,401) 
 (242,401)
Cash dividends ($0.75 per share) and dividend equivalents declared
 
 (115,184) 
 (115,184) 
 (115,184)
Stock-based compensation expense
 15,695
 
 
 15,695
 
 15,695
Balance as of December 31, 2018151,364
 619,265
 1,048,804
 (70,447) 1,597,622
 
 1,597,622
Net income attributable to KLA-Tencor
 
 192,728
 
 192,728
 
 192,728
Net loss attributable to non-controlling interest
 
 
 
 
 (83) (83)
Other comprehensive income
 
 
 1,540
 1,540
 
 1,540
Assumption of stock-based compensation plan awards in connection with the acquisition of Orbotech
 13,281
 
 
 13,281
 
 13,281
Common stock issued upon the acquisition of Orbotech12,292
 1,330,786
 
 
 1,330,786
 
 1,330,786
Net issuance under employee stock plans26
 (371) 
 
 (371) 
 (371)
Repurchase of common stock(1,770) (7,240) (198,777) 
 (206,017) 
 (206,017)
Cash dividends ($0.75 per share) and dividend equivalents declared
 
 (114,669) 
 (114,669) 
 (114,669)
Non-controlling interest in connection with the acquisition of Orbotech
 
 
 
 
 36,578
 36,578
Stock-based compensation expense
 34,193
 
 
 34,193
 
 34,193
Balance as of March 31, 2019161,912
 $1,989,914
 $928,086
 $(68,907) $2,849,093
 $36,495
 $2,885,588

See accompanying notes to condensed consolidated financial statements (unaudited).


KLA-TENCOR CORPORATION
Condensed Consolidated Statements of Stockholders’ Equity
(Unaudited)

 
Common Stock and
Capital in Excess of
Par Value
 
Retained
Earnings
(Accumulated Deficit)
 
Accumulated
Other
Comprehensive
Income (Loss)
 
Total KLA-Tencor
Stockholders’
Equity
(In thousands, except per share amounts)Shares Amount 
Balance as of June 30, 2017156,840
 $529,283
 $848,457
 $(51,323) $1,326,417
Net income
 
 280,936
 
 280,936
Other comprehensive income
 
 
 542
 542
Net issuance under employee stock plans334
 (23,628) 
 
 (23,628)
Repurchase of common stock(433) (1,463) (39,312) 
 (40,775)
Cash dividends ($0.59 per share) and dividend equivalents declared
 
 (93,567) 
 (93,567)
Stock-based compensation expense
 14,031
 
 
 14,031
Balance as of September 30, 2017156,741
 518,223
 996,514
 (50,781) 1,463,956
Net loss
 
 (134,319) 
 (134,319)
Other comprehensive income
 
 
 (1,741) (1,741)
Net issuance under employee stock plans309
 18,012
 
 
 18,012
Repurchase of common stock(388) (1,283) (39,585) 
 (40,868)
Cash dividends ($0.59 per share) and dividend equivalents declared
 
 (93,154) 
 (93,154)
Stock-based compensation expense
 13,739
 
 
 13,739
Balance as of December 31, 2017156,662
 548,691
 729,456
 (52,522) 1,225,625
Net income
 
 306,881
 
 306,881
Other comprehensive income
 
 
 (1,755) (1,755)
Net issuance under employee stock plans6
 (437) 
 
 (437)
Repurchase of common stock(796) (2,787) (80,648) 
 (83,435)
Cash dividends ($0.59 per share) and dividend equivalents declared
 
 (92,946) 
 (92,946)
Stock-based compensation expense
 16,210
 
 
 16,210
Balance as of March 31, 2018155,872
 $561,677
 $862,743
 $(54,277) $1,370,143


See accompanying notes to condensed consolidated financial statements (unaudited).


KLA-TENCOR CORPORATION
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Six months ended
December 31,
Nine months ended
March 31,
(In thousands)2017 20162019 2018
Cash flows from operating activities:      
Net income$146,617
 $416,352
$957,689
 $453,498
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization31,412
 29,314
105,338
 47,695
Asset impairment charges1,000
 358
Non-cash stock-based compensation expense27,770
 23,922
Net (gain) loss on sales of marketable securities and other investments49
 (885)
Changes in assets and liabilities, net of business acquisition:   
Accounts receivable, net(169,498) (62,627)
Loss (gains) on unrealized foreign exchange and other4,863
 (1,221)
Stock-based compensation expense66,026
 43,980
Changes in assets and liabilities, net of assets acquired and liabilities assumed in business acquisitions:   
Accounts receivable(92,586) (78,128)
Inventories(44,434) 14,319
(72,740) (104,921)
Other assets82,267
 (8,838)15,057
 16,276
Accounts payable2,192
 10,239
(17,795) 21,375
Deferred system revenue(67,428) 
Deferred service revenue(16,485) 
Deferred system profit67,968
 19,391

 79,147
Other liabilities357,657
 (49,355)(54,768) 377,906
Net cash provided by operating activities503,000
 392,190
827,171
 855,607
Cash flows from investing activities:      
Acquisition of non-marketable securities(3,377) (2,370)(630) (3,377)
Business acquisition(5,490) 
Capital expenditures, net(29,125) (18,512)
Proceeds from sale of assets
 2,582
Business acquisitions, net of cash acquired(1,818,283) (5,490)
Capital expenditures(74,652) (44,119)
Purchases of available-for-sale securities(326,012) (830,462)(2,686) (438,673)
Proceeds from sale of available-for-sale securities106,601
 189,242
239,528
 165,030
Proceeds from maturity of available-for-sale securities391,760
 356,177
443,107
 489,569
Purchases of trading securities(30,790) (73,278)(62,428) (65,160)
Proceeds from sale of trading securities35,382
 68,465
64,623
 67,063
Net cash provided by (used in) investing activities138,949
 (308,156)
Net cash (used in) provided by investing activities(1,211,421) 164,843
Cash flows from financing activities:      
Proceeds from issuance of debt, net of issuance costs1,186,263
 
Proceeds from revolving credit facility, net of debt issuance costs248,693
 
900,000
 248,693
Repayment of debt(696,250) (80,000)(902,474) (721,250)
Common stock repurchases(750,216) (165,078)
Payment of dividends to stockholders(350,900) (285,030)
Issuance of common stock20,579
 23,694
20,556
 20,571
Tax withholding payments related to vested and released restricted stock units(26,195) (17,455)(30,575) (26,623)
Common stock repurchases(80,354) 
Payment of dividends to stockholders(192,902) (173,842)
Net cash used in financing activities(726,429) (247,603)
Payment of contingent consideration payable(513) 
Net cash provided by (used in) financing activities72,141
 (928,717)
Effect of exchange rate changes on cash and cash equivalents4,823
 (7,886)(110) 10,898
Net decrease in cash and cash equivalents(79,657) (171,455)
Net (decrease) increase in cash and cash equivalents(312,219) 102,631
Cash and cash equivalents at beginning of period1,153,051
 1,108,488
1,404,382
 1,153,051
Cash and cash equivalents at end of period$1,073,394
 $937,033
$1,092,163
 $1,255,682
Supplemental cash flow disclosures:      
Income taxes paid, net$147,483
 $110,575
Income taxes paid$164,701
 $221,797
Interest paid$58,698
 $60,016
$55,529
 $61,028
Non-cash activities:      
Purchase of land, property and equipment, net - investing activities$5,548
 $1,985
Issuance of common stock for the acquisition of Orbotech Ltd. - financing activities$1,330,786
 $
Contingent consideration payable - financing activities$6,740
 $
Dividends payable - financing activities$6,494
 $8,408
Unsettled common stock repurchase - financing activities$1,289
 $
$5,988
 $
Dividends payable - financing activities$7,590
 $12,763
Accrued debt issuance costs - financing activities$2,530
 $
Accrued purchases of land, property and equipment - investing activities$6,370
 $9,728
 
See accompanying notes to condensed consolidated financial statements (unaudited).

KLA-TENCOR CORPORATION
Notes to Condensed Consolidated Financial Statements
(Unaudited)

NOTE 1 – BASIS OF PRESENTATION
Basis of Presentation. For purposes of this report, “KLA,” “KLA-Tencor,” the “Company,” “we,” “our,” “us,” or similar references mean KLA-Tencor Corporation, and its majority-owned subsidiaries unless the context requires otherwise. The condensed consolidated financial statements have been prepared by the Companyus pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to such rules and regulations.
In the opinion of management, the unaudited interim financial statements reflect all adjustments (consisting only of normal, recurring adjustments) necessary for a fair statement of the financial position, results of operations, comprehensive income, (loss),stockholders’ equity and cash flows for the periods indicated. These financial statements and notes, however, should be read in conjunction with Item 8, “Financial Statements and Supplementary Data” included in the Company’sour Annual Report on Form 10-K for the fiscal year ended June 30, 20172018, filed with the SEC on August 4, 20176, 2018.
The condensed consolidated financial statements include the accounts of KLA-TencorKLA and its majority-owned subsidiaries. All significant intercompany balances and transactions have been eliminated.
The results of operations for the three and sixnine months ended DecemberMarch 31, 20172019 are not necessarily indicative of the results that may be expected for any other interim period or for the full fiscal year ending June 30, 2018.2019.
Certain reclassifications have been made to the prior year’s Condensed Consolidated Balance Sheet and notesFinancial Statements to conform to the current year presentation. The reclassifications had no effectdid not have material effects on the prior year’s Condensed Consolidated Balance Sheets, Statements of Operations, Comprehensive Income (Loss) and Cash Flows.
Acquisition of Orbotech, Ltd. On February 20, 2019 (the “Closing Date” or “Acquisition Date”), we completed the acquisition of Orbotech, Ltd. (“Orbotech”) for $38.86 in cash and 0.25 of a share of our common stock in exchange for each ordinary share of Orbotech for a total consideration of $3.26 billion. The acquisition of Orbotech is referred to as the “Orbotech Acquisition”. The Orbotech Acquisition was accounted for by applying the acquisition method of accounting for business combinations. The unaudited condensed consolidated financial statements in this report include the financial results of Orbotech prospectively from the Acquisition Date. For additional details, refer to Note 6 “Business Combinations.”
Management Estimates. The preparation of the condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions in applying the Company’sour accounting policies that affect the reported amounts of assets and liabilities (and related disclosure of contingent assets and liabilities) at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.
Revenue Recognition.Comparability. The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the selling price is fixed or determinable, and collectibility is reasonably assured. The Company derives revenue from three sources—sales of systems, spare parts and services. In general, the Company recognizes revenue for systems when the system has been installed, is operating according to predetermined specifications and is accepted by the customer. When the Company has demonstrated a history of successful installation and acceptance, the Company recognizes revenue upon delivery and customer acceptance. Under certain circumstances, however, the Company recognizes revenue prior to acceptance from the customer, as follows:
When the customer fab has previously accepted the same tool, with the same specifications, and when the Company can objectively demonstrate that the tool meets all of the required acceptance criteria.
When system sales to independent distributors have no installation requirement, contain no acceptance agreement, and 100% of the payment is due based upon shipment.
When the installation of the system is deemed perfunctory.
When the customer withholds acceptance due to issues unrelated to product performance, in which case revenue is recognized when the system is performing as intended and meets predetermined specifications.
In circumstances in which the Company recognizes revenue prior to installation, the portion of revenue associated with installation is deferred based on estimated fair value, and that revenue is recognized upon completion of the installation.

In many instances, products are sold in stand-alone arrangements. Services are sold separately through renewals of annual maintenance contracts. The Company has multiple element revenue arrangements in cases where certain elements of a sales arrangement are not delivered and accepted in one reporting period. To determine the relative fair value of each element in a revenue arrangement, the Company allocates arrangement consideration basedEffective on the selling price hierarchy. For substantially allfirst day of the arrangements with multiple deliverables pertaining to products and services, the Company uses vendor-specific objective evidence (“VSOE”) or third-party evidence (“TPE”) to allocate the selling price to each deliverable. The Company determines TPE based on historical prices charged for products and services when sold on a stand-alone basis. When the Company is unable to establish relative selling price using VSOE or TPE, the Company uses estimated selling price (“ESP”) in its allocation of arrangement consideration. The objective of ESP is to determine the price at which the Company would transact a sale if the product or service were sold on a stand-alone basis. ESP could potentially be used for new or customized products. The Company regularly reviews relative selling prices and maintains internal controls over the establishment and updates of these estimates.
In a multiple element revenue arrangement, the Company defers revenue recognition associated with the relative fair value of each undelivered element until that element is delivered to the customer. To be considered a separate element, the product or service in question must represent a separate unit of accounting, which means that such product or service must fulfill the following criteria: (a) the delivered item(s) has value to the customer on a stand-alone basis; and (b) if the arrangement includes a general right of return relative to the delivered item(s), delivery or performance of the undelivered item(s) is considered probable and substantially in the control of the Company. If the arrangement does not meet all the above criteria, the entire amount of the sales contract is deferred until all elements are accepted by the customer.
Trade-in rights are occasionally granted to customers to trade in tools in connection with subsequent purchases. The Company estimates the value of the trade-in right and reduces the revenue recognized on the initial sale. This amount is recognized at the earlier of the exercise of the trade-in right or the expiration of the trade-in right.
The Company enters into volume purchase agreements with some of its customers. The Company accrues the estimated credits earned by its customers for such incentives, and in situations when the credit levels vary depending upon sales volume, the Company updates its accrual based on the amount that the Company estimates will be purchased pursuant to the volume purchase agreements. Accruals for customer credits are recorded as an offset to revenue or deferred revenue.
 Spare parts revenue is recognized when the parts have been shipped, risk of loss has passed to the customer and collection of the resulting receivable is reasonably assured.
Service and maintenance contract revenue is recognized ratably over the term of the maintenance contract. fiscal 2019, we adopted Accounting Standards Update 2014-09, Revenue from services performedContracts with Customers (“ASC 606”). Prior periods were not retrospectively restated, and accordingly, the consolidated balance sheet as of June 30, 2018, and the condensed consolidated statements of operations for the three and nine months ended March 31, 2018 were prepared using accounting standards that were different than those in effect for the absence of a maintenance contract, including consultingthree and training revenue, is recognized when the related services are performed and collectibility is reasonably assured.
The Company sells stand-alone software that is subject to software revenue recognition guidance. The Company periodically reviews selling prices to determine whether VSOE exists, and in situations where the Company is unable to establish VSOE for undelivered elements such as post-contract service, revenue is recognized ratably over the term of the service contract.
The Company also defers the fair value of non-standard warranty bundled with equipment sales as unearned revenue. Non-standard warranty includes services incremental to the standard 40-hour per week coverage for 12 months. Non-standard warranty is recognized ratably as revenue when the applicable warranty term period commences.
The deferred system profit balance equals the value of products that have been shipped and billed to customers which have not met the Company’s revenue recognition criteria, less applicable product and warranty costs. Deferred system profit does not include the profit associated with product shipments to certain customers in Japan, to whom title does not transfer until customer acceptance. Shipments to such customers in Japan are classified as inventory at cost until the time of acceptance.

nine months ended
March 31, 2019.
Recent Accounting Pronouncements.
Recently Adopted
In July 2015,May 2014, the Financial Accounting Standards Board (“FASB”) issued an accounting standard update forASC 606, which supersedes the subsequent measurement of inventory. The amended guidance requires entities to measure inventory at the lower of cost or net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. The requirement would replace the current lower of cost or market evaluation and the accounting guidance is unchanged for inventory measured using last-in, first-out (“LIFO”ASC 605, Revenue Recognition (“ASC 605) or the retail inventory method. The Company adopted this update beginning in the first quarter of its fiscal year ending June 30, 2018 on a prospective basis and there was no impact of adoption on its condensed consolidated financial statements.
Updates Not Yet Effective
In May 2014, the FASB issued an accounting standard update regarding revenue from customer contracts to transfer goods and services or non-financial assets unless the contracts are covered by other standards (for example, insurance or lease contracts). Under the new guidance, an entity should recognizeASC 606, revenue in connection with the transferis recognized when a customer obtains control of promised goods or services to customers in an amount that reflects the consideration thatto which the entity expects to be entitled to receive in exchange for those goods or services. In addition, the new standardASC 606 requires that reporting companies discloseenhanced disclosures, including disclosure of the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The new standard may be applied retrospectively to each prior period presented (“full retrospective transition method”) or retrospectively withWe adopted the cumulative effect recognizedASC 606 as of the date of adoption (“modified retrospective transition method”). The FASB has also issued several amendments to the standard since its initial issuance. The Company intends to adopt the new standardJuly 1, 2018 in theour first quarter of itsour fiscal year ending June 30, 2019, and elected ausing the modified retrospective transition methodapproach. For additional detail, refer to be applied to completed and incomplete contracts as of the adoption date.
To address the significant implementation requirements of the accounting standard update, the Company has established a revenue project steering committee and cross-functional implementation team for the implementation of the standard, including a review of all significant revenue arrangements to identify any differences in the timing, measurement, presentation of revenue recognition including new disclosure requirements.
The Company has completed its preliminary assessment of the potential impact that the implementation of this new standard will have on its consolidated financial statements and believes the most significant impact may include the following:

The Company will account for the standard 12-month warranty for a majority of its products that is not separately paid for by the customers as a performance obligation since the Company provides for necessary repairs as well as preventive maintenance services for such products. The estimated fair value of the service will be deferred and recognized ratably as revenue over the warranty period.

The Company will generally recognize revenue for its products at a point of time based on judgment of whether or not the Company has satisfied its performance obligation by transferring control of the product to the customer. In evaluating whether or not control has been transferred to the customer, the Company will consider whether or not certain indicators have been met. Not all of the indicators need to be met for the Company to conclude that control has transferred to the customer. The Company will be required to use significant judgment to evaluate whether or not the factors indicate that the customer has obtained control of the product and the following factors will be considered in evaluating whether or not control has transferred to the customer: the Company has a present right to payment; the customer has legal title; the customer has physical possession; the customer has significant risk and rewards of ownership; and the customer has accepted the product, or whether customer acceptance is considered a formality based on history of acceptance of similar products.

The Company will recognize revenue for software licenses at the time of delivery since the VSOE requirement for undelivered element such as post-contract support is eliminated and companies are allowed to use established or best estimate selling price for the undelivered element to allocate and defer the revenue. As a result, the Company will recognize as revenue a portion of the sales price upon delivery of the software, compared to the current practice of recognizing the entire sales price ratably over the term of the service contract due to the lack of VSOE.
The Company will continue to assess the impact of the new standard, including potential changes to the accounting policies, business processes, systems and internal controls over financial reporting and its preliminary assessment of the impact is subject to change.Note 2 “Revenue.”

In January 2016, the FASB issued an accounting standard update that changes the accounting for financial instruments primarily related to equity investments (other than those accounted for under the equity method of accounting or those that result in consolidation of the investee), financial liabilities under the fair value option, and the presentation and disclosure requirements for financial instruments. The accounting standardWe adopted this update is effective for the Company beginning in the first quarter of itsour fiscal year ending June 30, 2019 on a prospective basis and earlythe adoption is permitted. The Company is currently evaluating thehad no material impact of this accounting standard update on itsour condensed consolidated financial statements.
In FebruaryAugust 2016, the FASB issued an accounting standard update which amends the existing accounting standards for leases. Consistent with current guidance, the recognition, measurement, and presentation of expensesintended to clarify how certain cash receipts and cash flows arising from a lease by a lessee primarily will depend on its classification. Underpayments are presented and classified in the new guidance, a lessee will be required to recognize assets and liabilities for all leases with lease termsstatement of more than 12 months. Thecash flows. We adopted this update is effective for the Company beginning in the first quarter of itsour fiscal year ending June 30, 2020 using2019 on a modified retrospective transition method. Earlybasis and the adoption is permitted. The Company is currently evaluating thehad no material impact of this accounting standard update on its condensed consolidated financial statements.
In June 2016, the FASB issued an accounting standard update that changes the accounting for recognizing impairments of financial assets. Under the update, credit losses for certain types of financial instruments will be estimated based on expected losses. The update also modifies the impairment models for available-for-sale debt securities and for purchased financial assets with credit deterioration since their origination. The update is effective for the Company beginning in the first quarter of its fiscal year ending June 30, 2021, with early adoption permitted starting in the first quarter of fiscal year ending June 30, 2020. The Company is currently evaluating the impact of this accounting standard update on itsour condensed consolidated financial statements.
In October 2016, the FASB issued an accounting standard update to recognize the income tax consequences of intra-entity transfers of assets other than inventory when they occur. This eliminates the exception to postpone recognition until the asset has been sold to an outside party. This standard is effective for the CompanyWe adopted this update beginning in the first quarter of itsour fiscal year ending June 30, 2019 and early adoption is permitted. It is required to be applied on a modified retrospective basis throughand the adoption had no material impact on our condensed consolidated financial statements.
In January 2017, the FASB issued an accounting standard on clarifying the definition of a cumulative-effect adjustmentbusiness, with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. We adopted this update beginning in the balance sheet asfirst quarter of the beginning of theour fiscal year of adoption. The Company is currently evaluatingending June 30, 2019 on a prospective basis and the adoption had no material impact of this accounting standard update on itsour condensed consolidated financial statements.
In January 2017, the FASB issued an accounting standard update to simplify the subsequent measurement of goodwill by removing the second step of the two-step impairment test, which requires an entity to determine the fair value of assets and liabilities similar to what is required in a purchase price allocation. Under the update, goodwill impairment will be calculated as the amount by which a reporting unit’s carrying value exceeds itsour fair value. This standard is effective for the Company beginningWe early adopted this update in the first quarter of itsour fiscal year ending June 30, 2021 and requires2019 on a prospective approach to adoption. Earlybasis and the adoption is permitted. The Company is currently evaluating thehad no material impact of this accounting standard update on itsour condensed consolidated financial statements.
In January 2017, the FASB issued an accounting standard on clarifying the definition of a business, with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The standard is effective for the Company for its fiscal year ending June 30, 2019.  The Company is currently evaluating the impact of this accounting standard update on its consolidated financial statements. 
In March 2017, the FASB issued an accounting standard update that changes the statements of operationoperations classification of net periodic benefit cost related to defined benefit pension and/or other postretirementpost-retirement benefit plans. Under the update, employers will present the service cost component of net periodic benefit cost in the same statements of operations line item(s) as other employee compensation costs arising from services rendered during the period. Only the service cost component will be eligible for capitalization in assets. Employers will present the other components of the net periodic benefit costs separately from the line item(s) that includes the service cost and outside of any subtotal of operating income, if one is presented. The standard is effective for the CompanyWe adopted this update beginning in the first quarter of itsour fiscal year ending June 30, 2019 on a retrospective basis and earlythe adoption is permitted. It is required to be applied retrospectively, except for the provision regarding capitalization in assets which is required to be applied prospectively. The Company is currently evaluating thehad no material impact of this accounting standard update on itsour condensed consolidated financial statements.
In May 2017, the FASB issued an accounting standard update regarding stock compensation that provides guidance about which changes to the terms and conditions of a share-based payment award require an entity to apply modification accounting in order to reduce diversity in practice and reduce complexity. TheWe adopted this update is effective for the Company beginning in the first quarter of the Company’sour fiscal year ending June 30, 2019 on a prospective basis and should be applied prospectively with earlythe adoption permitted as of the beginning of an interim or annual reporting period. The Company is currently evaluating thehad no material impact of this accounting standard update on itsour condensed consolidated financial statements.

In August 2017, the FASB issued an accounting standard update to hedge accounting to better align the Company’s risk management activities by refining financial and non-financial hedging strategy eligibilities. This update also amends the presentation and disclosure requirements to increase transparency to better understand an entity’s risk exposures and how hedging strategies are used to manage those exposures. ThisWe early adopted this update in the second quarter of our fiscal year ending June 30, 2019 under the modified retrospective approach. The cumulative effect adjustment for the elimination of the ineffectiveness was not material to our condensed consolidated financial statements. The presentation and disclosure have been amended on a prospective basis, as required by this update.
In February 2018, the FASB issued an accounting standard update that provides an option to reclassify disproportional tax effects and other income tax effects (“stranded tax effects”) caused by the Tax Cuts and Jobs Act (“the Act”) from accumulated other comprehensive income (“AOCI”) to retained earnings. We early adopted this update in the first quarter of our fiscal year ending June 30, 2019 and applied this update in the period of adoption. As a result of the adoption, we made a reclassification from AOCI to beginning retained earnings of approximately $10.9 million related to the stranded tax effects.

Updates Not Yet Effective
In February 2016, the FASB issued an accounting standard update which amends the existing accounting standards for leases. Consistent with current guidance, the recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee primarily will depend on our classification. Under the new guidance, a lessee will be required to recognize assets and liabilities for all leases with lease terms of more than 12 months using a modified retrospective transition method. In July 2018, the FASB issued an amendment to the standard which provides us an option to apply the practical expedient allowed in the standard retrospectively with the cumulative effect recognized as of the date of adoption. The update is effective for the Companyus beginning in the first quarter of itsour fiscal year ending June 30, 2020, and early2020. Early adoption is permitted. The Company isWe are currently evaluating the impact of this accounting standard update on itsour condensed consolidated financial statements.
In June 2016, the FASB issued an accounting standard update that changes the accounting for recognizing impairments of financial assets. Under the update, credit losses for certain types of financial instruments will be estimated based on expected losses. The update also modifies the impairment models for available-for-sale debt securities and for purchased financial assets with credit deterioration since their origination. The update is effective for us beginning in the first quarter of our fiscal year ending June 30, 2021, with early adoption permitted starting in the first quarter of fiscal year ending June 30, 2020. We are currently evaluating the impact of this accounting standard update on our condensed consolidated financial statements.
In August 2018, the FASB issued an accounting standard update which modifies the existing accounting standards for fair value measurement disclosure. This update eliminates the disclosure of the amount of and reasons for transfers between level 1 and level 2 of the fair value hierarchy, and the policy for timing of transfers between levels. This standard update is effective for us beginning in the first quarter of our fiscal year ending June 30, 2021, and early adoption is permitted. We are currently evaluating the impact of this accounting standard update on our condensed consolidated financial statements.
In August 2018, the FASB issued an accounting standard update to amend the disclosure requirements related to defined benefit pension and other post-retirement plans. Some of the changes include adding a disclosure requirement for significant gains and losses related to changes in the benefit obligation for the period and removing the amounts in accumulated other comprehensive income expected to be recognized as components of net periodic benefit cost over the next fiscal year. This standard update is effective for us for the fiscal year ending June 30, 2021, and early adoption is permitted. We are currently evaluating the impact of this accounting standard update on our condensed consolidated financial statements.
In August 2018, the FASB issued an accounting standard update to align the requirements for capitalizing implementation costs incurred in a cloud computing arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The guidance clarifies which costs should be capitalized including the cost to acquire the license and the related implementation costs. This standard update is effective for us beginning in the first quarter of our fiscal year ending June 30, 2021, with an option to be adopted either prospectively or retrospectively. Early adoption is permitted. We are currently evaluating the impact of this accounting standard update on our condensed consolidated financial statements.
Significant Accounting Policies. We updated our accounting policies for Revenue Recognition, Business Combinations, Global Intangible Low-Taxed Income (“GILTI”), and Derivative Financial Instruments. There have been no other material changes to our significant accounting policies in Note 1 “Description of Business and Summary of Significant Accounting Policies,” of the Notes to the Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2018.
Revenue Recognition. We primarily derive revenue from the sale of process control and yield management solutions for the semiconductor and related nanoelectronics industries, maintenance and support of all these products, installation and training services and the sale of spare parts. Our solutions provide a comprehensive portfolio of inspection, metrology and data analytics products, which are accompanied by a flexible portfolio of services to enable our customers to maintain the performance and productivity of the solutions purchased. The acquisition of Orbotech enabled us to broaden our portfolio to include the yield enhancement and production solutions used by manufacturers of printed circuit boards, flat panel displays, advanced packaging, micro-electro-mechanical systems and other electronic components.
Our solutions are generally not sold with a right of return, nor have we experienced significant returns from or refunds to our customers.
We account for a contract with a customer when there is approval and commitment from both parties, the rights of the parties are identified, payment terms are identified, the contract has commercial substance and collectibility of consideration is probable.

Our revenues are measured based on consideration stipulated in the arrangement with each customer, net of any sales incentives and amounts collected on behalf of third parties, such as sales taxes. The revenues are recognized as separate performance obligations that are satisfied by transferring control of the product or service to the customer.
Our arrangements with our customers include various combinations of products and services, which are generally capable of being distinct and accounted for as separate performance obligations. A product or service is considered distinct if it is separately identifiable from other deliverables in the arrangement and if a customer can benefit from it on its own or with other resources that are readily available to the customer.
The transaction consideration, including any sales incentives, is allocated between separate performance obligations of an arrangement based on the stand-alone selling prices (“SSP”) for each distinct product or service. Management considers a variety of factors to determine the SSP, such as, historical standalone sales of products and services, discounting strategies and other observable data.
From time to time, our contracts are modified to account for additional, or to change existing, performance obligations. Our contract modifications are generally accounted for prospectively.
Product revenue
We recognize revenue from product sales at a point in time when we have satisfied our performance obligation by transferring control of the product to the customer. We use judgment to evaluate whether the control has transferred by considering several indicators, including:

whether we have a present right to payment;
the customer has legal title;
the customer has physical possession;
the customer has significant risk and rewards of ownership; and
the customer has accepted the product, or whether customer acceptance is considered a formality based on history of acceptance of similar products (for example, when the customer has previously accepted the same tool, with the same specifications, and when we can objectively demonstrate that the tool meets all of the required acceptance criteria, and when the installation of the system is deemed perfunctory).
Not all of the indicators need to be met for us to conclude that control has transferred to the customer. In circumstances in which revenue is recognized prior to the product acceptance, the portion of revenue associated with our performance obligations to install product is deferred and recognized upon acceptance.
We enter into volume purchase agreements with some of our customers. We adjust the transaction consideration for estimated credits earned by our customers for such incentives. These credits are estimated based upon the forecasted and actual product sales for any given period and agreed-upon incentive rate. The estimate is updated at each reporting period.
We offer perpetual and term licenses for defects and data analysis software. The primary difference between perpetual and term licenses is the duration over which the customer can benefit from the use of the software, while the functionality and the features of the software are the same. With the acquisition of Orbotech we offer computer-aided manufacturing and engineering software solutions for the printed circuit boards production. Software is generally bundled with post-contract customer support (“PCS”), which includes unspecified software updates that are made available throughout the entire term of the arrangement. Revenue from software licenses is recognized at a point in time, when the software is made available to the customer. Revenue from PCS is deferred at contract inception and recognized ratably over the service period, or as services are performed.
Services and spare parts revenue
The majority of product sales include a standard 6 to 12-month warranty that is not separately paid for by the customers. The customers may also purchase extended warranty for periods beyond the initial year as part of the initial product sale. We have concluded that the standard 12-month warranty as well as any extended warranty periods included in the initial product sales are separate performance obligations. The estimated fair value of warranty services is deferred and recognized ratably as revenue over the warranty period, as the customer simultaneously receives and consumes the benefits of warranty services provided by us.

Additionally, we offer product maintenance and support services, which the customer may purchase separately from the standard and extended warranty offered as part of the initial product sale. Revenue from separately negotiated maintenance and support service contracts is also recognized over time based on the terms of the applicable service period. Revenue from services performed in the absence of a maintenance contract, including training revenue, is recognized when the related services are performed. We also sell spare parts, revenue from which is recognized when control over the spare parts is transferred to the customer.
Installation services include connecting and validating configuration of the product. In addition, several testing protocols are completed to confirm the equipment is performing to customer specifications. Revenue from product installation are deferred and recognized at a point in time, once installation is complete.
Significant Judgments
Our contracts with our customers often include promises to transfer multiple products and services. Each product and service is generally capable of being distinct and represents a separate performance obligation. Determining the SSP for each distinct performance obligation and allocation of consideration from an arrangement to the individual performance obligations and the appropriate timing of revenue recognition are significant judgments with respect to these arrangements. We typically estimate the SSP of products and services based on observable transactions when the products and services are sold on a standalone basis and those prices fall within a reasonable range. We typically have more than one SSP for individual products and services due to the stratification of these products by customers and circumstances. In these instances, we use information such as the size of the customer, geographic region, as well as customization of the products in determining the SSP. In instances where the SSP is not directly observable, we determine the SSP using information that includes market conditions, entity-specific factors, including discounting strategies, information about the customer or class of customer that is reasonably available and other observable inputs. While changes in the allocation of SSP between performance obligations will not affect the amount of total revenue recognized for a particular contract, any material changes could impact the timing of revenue recognition, which could have a material effect on our financial position and result of operations.
Although the products are generally not sold with a right of return, we may provide other credits or sales incentives, which are accounted for either as variable consideration or material right, depending on the specific terms and conditions of the arrangement. These credits and incentives are estimated at contract inception and updated at the end of each reporting period if and when additional information becomes available.
As outlined above, we use judgments to evaluate whether or not the customer has obtained control of the product and considers the several indicators in evaluating whether or not control has transferred to the customer. Not all of the indicators need to be met for us to conclude that control has transferred to the customer.
Contract Assets/Liabilities
The timing of revenue recognition, billings and cash collections may result in accounts receivable, contract assets, and contract liabilities (deferred revenue) on our condensed consolidated balance sheet. A receivable is recorded in the period we deliver products or provide services when we have an unconditional right to payment. Contract assets primarily relate to the value of products and services transferred to the customer for which the right to payment is not just dependent on the passage of time. Contract assets are transferred to receivable when rights to payment become unconditional.
A contract liability is recognized when we receive payment or have an unconditional right to payment in advance of the satisfaction of performance. The contract liabilities represent (1) deferred product revenue related to the value of products that have been shipped and billed to customers and for which the control has not been transferred to the customers, and (2) deferred service revenue, which is recorded when we receive consideration, or such consideration is unconditionally due, from a customer prior to transferring services to the customer under the terms of a contract. Deferred service revenue typically results from warranty services, and maintenance and other service contracts.
Contract assets and liabilities related to rights and obligations in a contract are recorded net in the condensed consolidated balance sheets. Upon the adoption of ASC 606, deferred costs of revenue are included in other current assets while under the legacy guidance deferred costs of revenue was included in deferred system profit.







Business Combinations. We allocate the fair value of the purchase price of our acquisitions to the tangible assets acquired, liabilities assumed, and intangible assets acquired, including in-process research and development (“IPR&D”), based on their estimated fair values. The excess of the fair value of the purchase price over the fair values of these net tangible and intangible assets acquired is recorded as goodwill. Management’s estimates of fair value are based upon assumptions believed to be reasonable, but our estimates and assumptions are inherently uncertain and subject to refinement. As a result, during the measurement period, which will not exceed one year from the acquisition date, we record adjustments to the assets acquired and liabilities assumed with the corresponding offset to goodwill. Upon the conclusion of the measurement period or final determination of the fair value of the purchase price of our acquisitions, whichever comes first, any subsequent adjustments are recorded to our condensed consolidated statements of operations.

The fair value of IPR&D is initially capitalized as an intangible asset with an indefinite life and assessed for impairment
thereafter. When an IPR&D project is completed, the IPR&D is reclassified as an amortizable purchased intangible asset and amortized over the asset’s estimated useful life. Acquisition-related expenses are recognized separately from the business combination and are expensed as incurred.

Derivative Financial Instruments.We use financial instruments, such as forward exchange contracts and currency options, to hedge a portion of, but not all, existing and forecasted foreign currency denominated transactions. The purpose of our foreign currency program is to manage the effect of exchange rate fluctuations on certain foreign currency denominated revenues, costs and eventual cash flows. The effect of exchange rate changes on forward exchange contracts is expected to offset the effect of exchange rate changes on the underlying hedged items. We also use interest rate lock agreements to hedge the risk associated with the variability of cash flows due to changes in the benchmark interest rate of the intended debt financing. We believe these financial instruments do not subject us to speculative risk that would otherwise result from changes in currency exchange rates or interest rates. All of our derivative financial instruments are recorded at fair value based upon quoted market prices for comparable instruments adjusted for risk of counterparty non-performance.
For derivative instruments designated and qualifying as cash flow hedges of forecasted foreign currency denominated transactions or debt financing expected to occur within twelve to eighteen months, the effective portion of the gains or losses is reported in accumulated other comprehensive income (loss) (“OCI”) and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. Prior to adopting the new accounting guidance for hedge accounting, time value was excluded from the assessment of effectiveness for derivative instruments designated as cash flow hedges. Time value was amortized on a mark-to-market basis and recognized in earnings over the life of the derivative contract. For derivative contracts executed after adopting the new accounting guidance, the election to include time value for the assessment of effectiveness is made on all forward contracts designated as cash flow hedges. The change in fair value of the derivative are recorded in OCI until the hedged transaction is recognized in earnings. The assessment effectiveness of options contracts designated as cash flow hedges continue to exclude time value after adopting the new accounting guidance. The initial value of the component excluded from the assessment of effectiveness are recognized in earnings over the life of the derivative contracts. Any difference between change in the fair value of the excluded components and the amounts recognized in earnings are recorded in OCI. For derivative instruments that are not designated as a cash flow hedge, gains and losses are recognized in other expense (income), net. We use foreign currency forward contracts to hedge certain foreign currency denominated assets or liabilities. The gains and losses on these derivative instruments are largely offset by the changes in the fair value of the assets or liabilities being hedged.
Global Intangible Low-Taxed Income. The Tax Cuts and Jobs Act (the “Act”) includes provisions for Global Intangible Low-Taxed Income (“GILTI”) wherein taxes on foreign income are imposed in excess of a deemed return on tangible assets of foreign corporations. This income will effectively be taxed at a 10.5% tax rate in general. As a result, the Company’s deferred tax assets and liabilities were being evaluated to determine if the deferred tax assets and liabilities should be recognized for the basis differences expected to reverse as a result of GILTI provisions that are effective for the Company after the fiscal year ending June 30, 2018, or should the tax on GILTI provisions be recognized as period costs in each year incurred. The Company has elected to account for GILTI as a component of current period tax expense starting from the first quarter of the fiscal year ending June 30, 2019.

NOTE 2 – REVENUE
New Revenue Accounting Standard
Method and Impact of Adoption
At the beginning of the fiscal year 2019, we adopted ASC 606 using the modified retrospective transition approach for all contracts completed and not completed as of the date of adoption. Under the modified retrospective transition approach, periods prior to the adoption date were not adjusted and continue to be reported in accordance with ASC 605. A cumulative effect of applying ASC 606 was recorded to the beginning retained earnings to reflect the impact of all existing arrangements under ASC 606.
The cumulative effect of applying ASC 606 represents a net decrease of $21.0 million as of July 1, 2018, which primarily related to the following:
A decrease of approximately $97.0 million in retained earnings related to the deferral of estimated fair value of the warranty services provided with our products for which revenue will be recognized in future periods under ASC 606. Further, upon adoption of ASC 606, we will recognize the standard warranty for a majority of products as a separate performance obligation, while in prior periods, we accounted for the estimated warranty cost as a charge to costs of sales when revenue was recognized. This was partially offset by an increase in retained earnings of approximately $37.0 million related to reversal of standard warranty expense, which was charged to cost of revenues in prior periods.
An increase in retained earnings of approximately $26.0 million due to a change in the timing of transfer of control over products to the customers.
Under ASC 606, revenue is recognized earlier than it would have been recognized under legacy guidance primarily due to our assessment of timing of transfer of control. Additionally, we render standard warranty coverage on our products for 12 months, providing labor and parts necessary to repair and maintain the products during the warranty period. Prior to adoption of ASC 606, we accounted for the estimated warranty cost as a charge to costs of sales when revenue was recognized. Upon adoption of ASC 606, the standard warranty for the majority of products is recognized as a separate performance obligation in service revenue.
Orbotech adopted ASC 606 on January 1, 2018, and the effect of adopting the ASC 606 on Orbotech’s revenues and operating income was not material. Orbotech’s contracts under ASC 606 supports the recognition of revenue at a point in time for the majority of its contracts, which is consistent with its legacy revenue recognition model. Revenue on the majority of Orbotech’s contracts will continue to be recognized upon delivery because this represents the point in time at which control is transferred to the customers. Revenues derived from performance obligations such as warranty and service contracts will continue to be recognized over the period of the service.
The following table, including the results from the acquisition of Orbotech, summarizes the effects of adopting ASC 606 on our condensed consolidated balance sheet as of March 31, 2019:
March 31, 2019 (In thousands)
As reported under
ASC 606
 
Prior to
adoption of
ASC 606
 Effect of changes
ASSETS     
Accounts receivable, net$958,021
 $1,064,002
 $(105,981)
Other current assets270,079
 130,172
 139,907
Deferred income taxes205,820
 197,392
 8,428
LIABILITIES     
Deferred system revenue$228,745
 $
 $228,745
Deferred service revenue182,119
 97,190
 84,929
Deferred system profit
 323,107
 (323,107)
Other current liabilities833,747
 866,870
 (33,123)
Deferred service revenue, non-current90,610
 82,176
 8,434
STOCKHOLDERS EQUITY
     
Retained earnings$928,086
 $851,740
 $76,346
Accumulated other comprehensive income (loss)(68,907) (69,038) 131

The following table, including the results from the acquisition of Orbotech, summarizes the effects of adopting ASC 606 on our condensed consolidated statements of operations for the three months ended March 31, 2019:
Three months ended March 31, 2019 (In thousands, except per share amounts)
As reported under
ASC 606
 
Prior to
adoption of
ASC 606
 Effect of changes
Revenues:     
Product$793,224
 $854,393
 $(61,169)
Service304,087
 266,333
 37,754
Costs and expenses:     
Costs of revenues486,945
 499,209
 (12,264)
Other expense (income), net(9,282) (9,041) (241)
Provision for income taxes28,745
 29,755
 (1,010)
Net income attributable to KLA-Tencor192,728
 202,627
 (9,899)
Net income per share attributable to KLA-Tencor     
Basic$1.23
 $1.30
 $(0.07)
Diluted$1.23
 $1.29
 $(0.06)
The following table, including the results from the acquisition of Orbotech, summarizes the effects of adopting ASC 606 on our condensed consolidated statements of operations for the nine months ended March 31, 2019:
Nine months ended March 31, 2019 (In thousands, except per share amounts)
As reported under
ASC 606
 
Prior to
adoption of
ASC 606
 Effect of changes
Revenues:     
Product$2,474,652
 $2,430,481
 $44,171
Service835,817
 726,976
 108,841
Costs and expenses:     
Costs of revenues1,276,592
 1,233,999
 42,593
Other expense (income), net(28,535) (28,253) (282)
Provision for income taxes107,232
 94,090
 13,142
Net income attributable to KLA-Tencor957,772
 860,212
 97,560
Net income per share attributable to KLA-Tencor:     
Basic$6.20
 $5.57
 $0.63
Diluted$6.17
 $5.54
 $0.63

Contract Balances
 As of As of    
(In thousands, except for percentage)March 31, 2019 July 1, 2018 $ Change % Change
Accounts receivable, net$958,021
 $635,878
 $322,143
 51 %
Contract assets$91,518
 $14,727
 $76,791
 521 %
Contract liabilities$501,474
 $556,691
 $(55,217) (10)%
Our payment terms and conditions vary by contract type, although terms generally include a requirement of payment of 70% to 90% of total contract consideration within 30 to 60 days of shipment, with the remainder payable within 30 days of acceptance.
The change in contract assets during the nine months ended March 31, 2019 was mainly due to an increase in contract assets of $71.1 million from the Orbotech Acquisition in the third quarter of fiscal year 2019 and $19.4 million of revenue recognized in excess of the amounts billed to the customers, partially offset by $14.7 million of contract assets reclassified to net accounts receivable as our right to consideration for these contract assets became unconditional. Contract assets are included in Other current assets on our condensed consolidated balance sheet.

During the nine months ended March 31, 2019, we recognized revenue of $422.3 million that was included in contract liabilities as of July 1, 2018. This was partially offset by an increase in contract liabilities of $28.8 million from the Orbotech Acquisition in the third quarter of fiscal year 2019, and the value of products and services billed to customers for which control of the products and service has not transferred to the customers. Contract liabilities are included in current and non-current liabilities on our condensed consolidated balance sheets.

Remaining Performance Obligations
As of March 31, 2019, we had $1.73 billion of remaining performance obligations, which represents our obligation to deliver products and services, and consists primarily of sales orders where written customer requests have been received. We expect to recognize approximately 5% to 15% of these performance obligations as revenue beyond the next twelve months, subject to risk of delays, pushouts, and cancellation by the customer, usually with limited or no penalties.
Refer to Note 17 “Segment Reporting and Geographic Information” for information related to revenue by geographic region as well as significant product and service offerings.
Practical expedients
We apply the following practical expedients:
We account for shipping and handling costs as activities to fulfill the promise to transfer the goods, instead of a promised service to our customer.
We have elected to not adjust the promised amount of consideration for the effects of a significant financing component as we expect, at contract inception, that the period between when the entity transfers a promised good or service to a customer and when the customer pays for that good or service will generally be one year or less.
We have elected to expense costs to obtain a contract as incurred because the expected amortization period is one year or less.
We have elected to reflect the aggregate effect of all modifications that occurred before July 1, 2018 in determining the transaction price, identifying the satisfied and unsatisfied performance obligations, and allocating the transaction price to the performance obligations.
NOTE 23 – FAIR VALUE MEASUREMENTS
The Company’sOur financial assets and liabilities are measured and recorded at fair value, except for itsour debt and certain equity investments in privately-held companies. ThesePrior to July 1, 2018, the equity investments arewere generally accounted for under the cost method of accounting and arewere periodically assessed for other-than-temporary impairment when an event or circumstance indicatesindicated that an other-than-temporary decline in value may have occurred. Effective July 1, 2018, equity investments without a readily available fair value are accounted for using the measurement alternative. The Company’smeasurement alternative is calculated as cost minus impairment, if any, plus or minus changes resulting from observable price changes.
Our non-financial assets, such as goodwill, intangible assets, and land, property and equipment, are recorded at cost and are assessed for impairment when an event or circumstance indicates that an other-than-temporary decline in value may have occurred.
Fair Value of Financial Instruments. KLA-Tencor hasWe have evaluated the estimated fair value of financial instruments using available market information and valuations as provided by third-party sources. The use of different market assumptions and/or estimation methodologies could have a significant effect on the estimated fair value amounts. The fair value of the Company’sour cash equivalents, accounts receivable, accounts payable and other current assets and liabilities approximate their carrying amounts due to the relatively short maturity of these items.
Fair Value Hierarchy. The authoritative guidance for fair value measurements establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described below:
Level 1  Valuations based on quoted prices in active markets for identical assets or liabilities that the entity has the ability to access.
   
Level 2  Valuations based on quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable data for substantially the full term of the assets or liabilities.
   
Level 3  Valuations based on inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.
The Company’s financial instruments were classified within Level 1 or Level 2 of the fair value hierarchy as of December 31, 2017, because they were valued using quoted market prices, broker/dealer quotes or alternative pricing sources with observable levels of price transparency. As of DecemberMarch 31, 2017,2019, the types of instruments valued based on quoted market prices in active markets included money market funds, certain U.S. Treasury securities and U.S. Government agency securities. Such instruments are generally classified within Level 1 of the fair value hierarchy.
As of December 31, 2017, the The types of instruments valued based on other observable inputs included corporate debt securities, U.S. Treasury securities and sovereign securities. The market inputs used to value these instruments generally consist of market yields, reported trades and broker/dealer quotes. Such instruments are generally classified within Level 2 of the fair value hierarchy.
The principal market in which the Company executes itswe execute our foreign currency contracts is the institutional market in an over-the-counter environment with a relatively high level of price transparency. The market participants generally are large financial institutions. The Company’sOur foreign currency contracts’ valuation inputs are based on quoted prices and quoted pricing intervals from public data sources and do not involve management judgment. These contracts are typically classified within Level 2 of the fair value hierarchy.

The fair value of deferred payments and contingent consideration payable, the majority of which were recorded in connection with business combinations during the three months ended March 31, 2019, were classified as Level 3 and estimated using significant inputs that were not observable in the market. See Note 6 “Business Combinations” for additional information.
Financial assets (excluding cash held in operating accounts and time deposits) and liabilities measured at fair value on a recurring basis, as of the date indicated below, were presented on the Company’sour Condensed Consolidated Balance Sheet as follows:
As of December 31, 2017 (In thousands)Total 
Quoted Prices in
Active Markets
for Identical
Assets (Level 1)
 
Significant Other
Observable Inputs
(Level 2)
As of March 31, 2019 (In thousands)Total 
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
 
Significant 
Other
Observable 
Inputs
(Level 2)
 
Little or no market activity
Inputs
(Level 3)
Assets            
Cash equivalents:            
Money market funds and other$569,287
 $569,287
 $
$592,141
 $592,141
 $
 $
U.S. Treasury securities3,745
 
 3,745

 
 
 
Marketable securities:            
Corporate debt securities914,358
 
 914,358
439,246
 
 439,246
 
Sovereign securities11,427
 
 11,427
10,991
 
 10,991
 
U.S. Government agency securities166,092
 166,092
 
 
U.S. Treasury securities404,983
 394,486
 10,497
187,080
 187,080
 
 
U.S. Government agency securities339,730
 339,730
 
Total cash equivalents and marketable securities(1)
2,243,530
 1,303,503
 940,027
1,395,550
 945,313
 450,237
 
Other current assets:            
Derivative assets4,474
 
 4,474
4,246
 
 4,246
 
Other non-current assets:            
Executive Deferred Savings Plan192,169
 142,809
 49,360
203,286
 153,528
 49,758
 
Total financial assets(1)
$2,440,173
 $1,446,312
 $993,861
$1,603,082
 $1,098,841
 $504,241
 $
Liabilities            
Other current liabilities:     
Derivative liabilities$(415) $
 $(415)$(1,816) $
 $(1,816) $
Deferred payments(8,800) 
 
 (8,800)
Contingent consideration payable

(13,840) 
 
 (13,840)
Total financial liabilities$(415) $
 $(415)$(24,456) $
 $(1,816) $(22,640)
________________
(1) Excludes cash of $481.1$446.7 million held in operating accounts and time deposits of $33.6$55.0 million as of DecemberMarch 31, 2017.2019.


Financial assets (excluding cash held in operating accounts and time deposits) and liabilities measured at fair value on a recurring basis, as of the date indicated below, were presented on the Company’sour Condensed Consolidated Balance Sheet as follows:  
As of June 30, 2017 (In thousands)Total 
Quoted Prices in
Active Markets
for Identical
Assets (Level 1)
 
Significant Other
Observable Inputs
(Level 2)
As of June 30, 2018 (In thousands)Total 
Quoted Prices in
Active Markets
for Identical
Assets (Level 1)
 
Significant Other
Observable Inputs
(Level 2)
Assets          
Cash equivalents:          
Corporate debt securities$76,472
 $
 $76,472
$4,995
 $
 $4,995
Money market funds and other616,039
 616,039
 
863,115
 863,115
 
U.S. Government agency securities117,417
 
 117,417
7,675
 
 7,675
Sovereign securities10,050
 
 10,050
U.S. Treasury securities1,996
 
 1,996
Marketable securities:          
Corporate debt securities1,042,723
 
 1,042,723
735,408
 
 735,408
Sovereign securities42,515
 
 42,515
17,142
 
 17,142
U.S. Government agency securities391,409
 368,121
 23,288
316,022
 299,501
 16,521
U.S. Treasury securities373,299
 373,299
 
405,654
 364,574
 41,080
Total cash equivalents and marketable securities(1)
2,669,924
 1,357,459
 1,312,465
2,352,007
 1,527,190
 824,817
Other current assets:          
Derivative assets5,931
 
 5,931
5,385
 
 5,385
Other non-current assets:          
Executive Deferred Savings Plan182,150
 136,145
 46,005
197,213
 143,580
 53,633
Total financial assets(1)
$2,858,005
 $1,493,604
 $1,364,401
$2,554,605
 $1,670,770
 $883,835
Liabilities          
Other current liabilities:     
Derivative liabilities$(1,275) $
 $(1,275)$(6,828) $
 $(6,828)
Total financial liabilities$(1,275) $
 $(1,275)$(6,828) $
 $(6,828)
________________
(1) Excludes cash of $307.4473.8 million held in operating accounts and time deposits of $39.4$54.5 million as of June 30, 20172018.
There were no transfers between Level 1 and Level 2 fair value measurements during the sixnine months ended DecemberMarch 31, 2017. The Company generally2019. We did not have any assets or liabilities measured at fair value on a recurring basis within Level 3 fair value measurements as of December 31, 2017 or June 30, 20172018. See Note 8 “Debt” for disclosure of the fair value of our Senior Notes.



NOTE 34 – FINANCIAL STATEMENT COMPONENTS
Consolidated Balance Sheet ComponentsSheets
(In thousands)As of
March 31, 2019
 As of
June 30, 2018
Accounts receivable, net:   
Accounts receivable, gross$970,291
 $663,317
Allowance for doubtful accounts(12,270) (11,639)
 $958,021
 $651,678
Inventories:   
Customer service parts$337,720
 $253,639
Raw materials466,133
 331,065
Work-in-process314,480
 280,208
Finished goods198,927
 66,933
 $1,317,260
 $931,845
Other current assets:   
Contract assets$91,518
 $
Deferred costs of revenue(1)
48,389
 
Prepaid expenses76,507
 47,088
Prepaid income and other taxes34,479
 23,452
Other current assets19,186
 14,619
 $270,079
 $85,159
Land, property and equipment, net:   
Land$41,422
 $40,599
Buildings and leasehold improvements389,270
 335,647
Machinery and equipment662,025
 577,077
Office furniture and fixtures28,475
 22,171
Construction-in-process27,766
 9,180
 1,148,958
 984,674
Less: accumulated depreciation(737,106) (698,368)
 $411,852
 $286,306
Other non-current assets:   
Executive Deferred Savings Plan(2)
$203,286
 $197,213
Other non-current assets56,804
 38,869
 $260,090
 $236,082
Other current liabilities:   
Compensation and benefits$246,429
 $173,774
Executive Deferred Savings Plan(2)
204,349
 199,505
Other accrued expenses176,677
 123,869
Customer credits and advances148,389
 116,440
Interest payable44,046
 16,947
Warranty6,740
 42,258
Income taxes payable7,117
 23,287
 $833,747
 $696,080
Other non-current liabilities:   
Income taxes payable$390,904
 $371,665
Pension liabilities67,103
 66,786
Other non-current liabilities117,592
 54,791
 $575,599
 $493,242
(In thousands)As of
December 31, 2017
 As of
June 30, 2017
Accounts receivable, net:   
Accounts receivable, gross$752,618
 $592,753
Allowance for doubtful accounts(11,715) (21,636)
 $740,903
 $571,117
Inventories:   
Customer service parts$248,937
 $245,172
Raw materials248,475
 240,389
Work-in-process237,261
 193,026
Finished goods53,298
 54,401
 $787,971
 $732,988
Other current assets:   
Prepaid expenses$46,451
 $36,146
Other current assets11,512
 13,004
Income tax related receivables8,966
 22,071
 $66,929
 $71,221
Land, property and equipment, net:   
Land$40,620
 $40,617
Buildings and leasehold improvements323,143
 319,306
Machinery and equipment568,203
 551,277
Office furniture and fixtures21,909
 21,328
Construction-in-process7,214
 4,597
 961,089
 937,125
Less: accumulated depreciation and amortization(679,455) (653,150)
 $281,634
 $283,975
Other non-current assets:   
Executive Deferred Savings Plan(1)
$192,169
 $182,150
Other non-current assets19,146
 13,526
 $211,315
 $195,676
Other current liabilities:   
Compensation and benefits$222,503
 $172,707
Executive Deferred Savings Plan(1)
192,849
 183,603
Customer credits and advances116,856
 95,188
Other accrued expenses86,865
 116,039
Warranty45,013
 45,458
Income taxes payable22,525
 17,040
Interest payable17,008
 19,396
 $703,619
 $649,431
Other non-current liabilities:   
Income taxes payable$355,849
 $68,439
Pension liabilities74,868
 72,801
Other non-current liabilities30,025
 31,167
 $460,742
 $172,407


________________
(1)KLA-Tencor hasDeferred costs of revenue were previously included under deferred system profit prior to the adoption of ASC 606.

(2)We have a non-qualified deferred compensation plan (known as “Executive Deferred Savings Plan” or “EDSP”) under which certain executivesemployees and non-employee directors may defer a portion of their compensation. Participants are credited with returns based on their allocation of their account balances among measurement funds. The Company controls the investment of these funds, and the participants remain general creditors of the Company. The Company invests these funds in certain mutual funds and such investments are classified as trading securities in the condensed consolidated balance sheets. Distributions from the Executive Deferred Savings Plan commence following a participant’s retirement or termination of employment or on a specified date allowed per the Executive Deferred Savings Plan provisions, except in cases where such distributions are required to be delayed in order to avoid a prohibited distribution under Internal Revenue Code Section 409A. Participants can generally elect the distributions to be paid in lump sum or quarterly cash payments over a scheduled period for up to 15 years and are allowed to make subsequent changes to their existing elections as permissible under the Executive Deferred Savings Plan provisions. Changes in the Executive Deferred Savings Plan liability are recorded in selling, general and administrative expense in the condensed consolidated statements of operations. The expense (benefit) associated with changes in the EDSP liability included in selling, general and administrative expense was $7.0$19.3 million and $1.2$0.9 million during the three months ended DecemberMarch 31, 20172019 and 2016,2018, respectively and $13.8was $7.0 million and $7.0$14.7 million during the sixnine months ended DecemberMarch 31, 20172019 and 2016. Changes in the Executive Deferred Savings Plan assets are recorded as gains (losses), net in selling, general and administrative expense in the condensed consolidated statements of operations.2018, respectively. The amount of net gains (losses) associated with changes in the EDSP assets included in selling, general and administrative expense was $7.0$19.7 million and $0.8$0.5 million during the three months ended DecemberMarch 31, 20172019 and 2016,2018, respectively and $13.9was $7.7 million and $6.7$14.4 million during the sixnine months ended DecemberMarch 31, 20172019 and 2016,2018, respectively. For additional details, refer to Note 1, “Description of Business and Summary of Significant Accounting Policies,” of the Notes to the Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2018.
Accumulated Other Comprehensive Income (Loss)
The components of accumulated other comprehensive income (loss) (“OCI”) as of the dates indicated below were as follows:
(In thousands)Currency Translation Adjustments Unrealized Gains (Losses) on Available-for-Sale Securities Unrealized Gains (Losses) on Cash Flow Hedges Unrealized Gains (Losses) on Defined Benefit Plans Total
Balance as of December 31, 2017$(26,614) $(7,751) $3,957
 $(22,114) $(52,522)
          
Balance as of June 30, 2017$(30,654) $(3,869) $5,221
 $(22,021) $(51,323)
(In thousands)Currency Translation Adjustments Unrealized Gains (Losses) on Available-for-Sale Securities Unrealized Gains (Losses) on Cash Flow Hedges Unrealized Gains (Losses) on Defined Benefit Plans Total
Balance as of March 31, 2019$(43,630) $(3,181) $(6,266) $(15,830) $(68,907)
          
Balance as of June 30, 2018$(29,974) $(11,032) $1,932
 $(14,859) $(53,933)
The effects on net income (loss) of amounts reclassified from accumulated OCI to the Condensed Consolidated Statement of Operations for the indicated period were as follows (in thousands):
 Location in the Condensed Consolidated Three months ended
December 31,
 Six months ended
December 31,
 Location in the Condensed Consolidated Three months ended
March 31,
 Nine months ended
March 31,
Accumulated OCI Components Statements of Operations 2017 2016 2017 2016 Statements of Operations 2019 2018 2019 2018
Unrealized gains (losses) on cash flow hedges from foreign exchange and interest rate contracts(1) Revenues $397
 $(1,425) $1,365
 $(2,906) Revenues $655
 $(65) $3,343
 $1,300
 Costs of revenues 377
 (69) 1,338
 (156) Costs of revenues (17) 570
 (309) 1,908
 Interest expense 189
 189
 378
 378
 Interest expense 150
 189
 527
 567
 Net gains (losses) reclassified from accumulated OCI $963
 $(1,305) $3,081
 $(2,684) Other expense (income), net 158
 
 158
 
 Net gains (losses) reclassified from accumulated OCI $946
 $694
 $3,719
 $3,775
Unrealized gains (losses) on available-for-sale securities Other expense (income), net $(69) $30
 $(63) $234
 Other expense (income), net $(313) $2
 $(1,263) $(61)
__________________ 
(1)Reflects the adoption of the new accounting guidance for hedge accounting in the second quarter of fiscal year 2019. For additional details, refer to Note 15, “Derivative Instruments and Hedging Activities.”
The amounts reclassified out of accumulated OCI related to the Company’sour defined benefit pension plans, which were recognized as a component of net periodic cost for the three and sixnine months ended DecemberMarch 31, 20172019 were $0.4$0.2 million and $0.8$0.6 million, respectively. The amounts reclassified out of accumulated OCI related to the Company’sour defined benefit pension plans, which were recognized as a component of net periodic cost for the three and sixnine months ended DecemberMarch 31, 20162018 were $0.9$0.4 million and $1.3$1.2 million, respectively. For additional details, refer to Note 11, “Employee Benefit Plans” of the Notes to the Consolidated Financial Statements included in the Company’sour Annual Report on Form 10-K for the fiscal year ended June 30, 2017.2018.

NOTE 45 – MARKETABLE SECURITIES
The amortized cost and fair value of marketable securities as of the dates indicated below were as follows:
As of December 31, 2017 (In thousands)
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair
Value
As of March 31, 2019 (In thousands)
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair
Value
Corporate debt securities$918,399
 $204
 $(4,245) $914,358
$441,279
 $43
 $(2,076) $439,246
Money market funds and other569,287
 
 
 569,287
592,141
 
 
 592,141
Sovereign securities11,496
 
 (69) 11,427
11,037
 
 (46) 10,991
U.S. Government agency securities342,325
 16
 (2,611) 339,730
166,867
 1
 (776) 166,092
U.S. Treasury securities411,669
 
 (2,941) 408,728
188,283
 
 (1,203) 187,080
Subtotal2,253,176
 220
 (9,866) 2,243,530
1,399,607
 44
 (4,101) 1,395,550
Add: Time deposits(1)
33,581
 
 
 33,581
54,986
 
 
 54,986
Less: Cash equivalents592,315
 
 
 592,315
645,431
 
 
 645,431
Marketable securities$1,694,442
 $220
 $(9,866) $1,684,796
$809,162
 $44
 $(4,101) $805,105
As of June 30, 2017 (In thousands)Amortized
Cost
 Gross
Unrealized
Gains
 Gross
Unrealized
Losses
 Fair
Value
As of June 30, 2018 (In thousands)Amortized
Cost
 Gross
Unrealized
Gains
 Gross
Unrealized
Losses
 Fair
Value
Corporate debt securities$1,120,548
 $598
 $(1,951) $1,119,195
$747,763
 $148
 $(7,508) $740,403
Money market funds and other616,039
 
 
 616,039
863,115
 
 
 863,115
Sovereign securities52,621
 
 (56) 52,565
17,293
 
 (151) 17,142
U.S. Government agency securities510,553
 62
 (1,789) 508,826
326,508
 16
 (2,827) 323,697
U.S. Treasury securities374,676
 52
 (1,429) 373,299
411,329
 3
 (3,682) 407,650
Subtotal2,674,437
 712
 (5,225) 2,669,924
2,366,008
 167
 (14,168) 2,352,007
Add: Time deposits(1)
39,389
 
 
 39,389
54,537
 
 
 54,537
Less: Cash equivalents845,639
 
 (15) 845,624
930,608
 
 
 930,608
Marketable securities$1,868,187
 $712
 $(5,210) $1,863,689
$1,489,937
 $167
 $(14,168) $1,475,936
________________
(1)Time deposits excluded from fair value measurements.
(1) Time deposits excluded from fair value measurements.
KLA-Tencor’sOur investment portfolio consists of both corporate and government securities that have a maximum maturity of three years. The longer the duration of these securities, the more susceptible they are to changes in market interest rates and bond yields. As yields increase, those securities with a lower yield-at-cost show a mark-to-market unrealized loss. AllMost of our unrealized losses are due to changes in market interest rates and bond yields and/or credit ratings. The Company believesyields. We believe that it haswe have the ability to realize the full value of all of these investments upon maturity. As of March 31, 2019, we had 296 investments in an unrealized loss position. The following table summarizes the fair value and gross unrealized losses of the Company’sour investments that were in an unrealized loss position as of the date indicated below: 
As of December 31, 2017 (In thousands)Fair Value 
Gross
Unrealized
Losses(1)
As of March 31, 2019 (In thousands)Fair Value 
Gross
Unrealized
Losses(1)
Corporate debt securities$792,436
 $(4,245)$397,009
 $(2,076)
U.S. Treasury securities404,982
 (2,941)187,080
 (1,203)
U.S. Government agency securities334,064
 (2,611)163,445
 (776)
Sovereign securities11,427
 (69)10,991
 (46)
Total$1,542,909
 $(9,866)$758,525
 $(4,101)
__________________ 
(1)
As of December 31, 2017, the amount of total gross unrealized losses related to investments that had been in a continuous loss position for 12 months or more was $5.3
(1) As of March 31, 2019, we had investments in a continuous loss position for 12 months or more with a gross amount $4.1 million.


The contractual maturities of securities classified as available-for-sale, regardless of their classification on the Company’sour Condensed Consolidated Balance Sheet, as of the date indicated below were as follows:
As of December 31, 2017 (In thousands)Amortized Cost Fair Value
As of March 31, 2019 (In thousands)Amortized Cost Fair Value
Due within one year$521,930
 $520,623
$606,043
 $603,536
Due after one year through three years1,172,512
 1,164,173
203,119
 201,569
$1,694,442
 $1,684,796
$809,162
 $805,105
Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Realized gains and losses on available-for-sale securities for the three and sixnine months ended DecemberMarch 31, 20172019 and 20162018 were immaterial.

NOTE 56 - BUSINESS COMBINATIONCOMBINATIONS
Orbotech Acquisition
On June 9, 2017, the CompanyFebruary 20, 2019, we completed the acquisition of 100% of the outstanding shares of a privately-held company that designs and manufactures optical profilers and inspection systemsOrbotech for advanced semiconductor packaging, LED and data storage industries, for totalaggregate purchase consideration of $37.1 million, inclusive of post-closing working capital adjustments. The remaining acquisition holdback amount of $4.8 millionapproximately $3.26 billion which was paid in part by cash of $1.90 billion, in part by KLA common shares with a fair value of $1.32 billion and the balance by the assumption of stock options and RSUs. Orbotech is a global supplier of yield-enhancing and process-enabling solutions for the manufacture of electronics products. KLA acquired Orbotech to extend and enhance its portfolio of products to address market opportunities in the printed circuit board, flat panel display, advanced packaging and semiconductor manufacturing areas.

Preliminary Purchase Price Allocation
The aggregate purchase consideration has been preliminarily allocated as follows (in thousands):
Purchase Price 
Cash for outstanding Orbotech shares(1)
$1,901,948
Fair value of KLA-Tencor common stock issued for outstanding Orbotech shares(2)
1,324,657
Cash for Orbotech equity awards(3)
9,543
Fair value of KLA-Tencor common stock issued to settle Orbotech equity awards(4)
6,129
Stock options and RSUs assumed (5)
13,281
Total purchase consideration3,255,558
Less: cash acquired(215,640)
Total purchase consideration, net of cash acquired$3,039,918
  
Allocation 
Total current assets$694,143
Property, plant and equipment94,290
Goodwill1,773,544
Intangible assets1,629,070
Other non-current assets77,780
Total current liabilities (6)
(301,090)
Deferred tax liability(825,341)
Total non-current liabilities (6)
(65,896)
Non-controlling interest(36,582)
 $3,039,918
________________
(1)Represents the total cash paid to settle 48.9 million outstanding Orbotech Shares as of February 20, 2019 at $38.86 per Orbotech share.

(2)Represents the fair value of 12.2 million shares of our common stock issued to settle 48.9 million outstanding Orbotech shares. KLA issued 0.25 shares for each Orbotech share. The fair value of KLA’s common stock was $108.26 per share on the Acquisition Date.
(3)Represents primarily cash consideration for the settlement of the vested stock options and restricted stock units for which services were rendered by the employees of Orbotech prior to the closing, and a small portion for the settlement of fractional shares.
(4)Represents the fair value of share of 56,614 shares of KLA common stock issued to settle the vested Orbotech stock options. The fair value of KLA’s common stock was $108.26 per share on the Acquisition Date.
(5)Represents the fair value of the assumed stock options and RSUs to the extent those related to services provided by the employee of Orbotech prior to closing. Also refer to Note 9, “Equity, Long-Term Incentive Compensation Plans and Non-Controlling Interest” for additional information about assumed stock options and RSUs.
(6)On December 24, 2018, Orbotech, as part of its strategy to invest in the high growth area of the software business within the Printed Circuit Boards (“PCB”) industry, acquired the remaining 50% shares of Frontline, which was prior to that accounted as an equity investee, from Mentor Graphics Development Services (Israel) Ltd. Orbotech acquired all of the joint venture interests it did not previously own for $85.0 million in cash on hand and agreed to pay an additional $10.0 million in cash over four years plus a cash earn-out of not less than $5.0 million and up to $20.0 million. The earn out amounts are based on revenues from a Frontline product currently under development. As of February 20, 2019, the estimated fair market values of the four-year cash payment and the earn-out are $8.8 million and $7.1 million, respectively. As of February 20, 2019, these amounts have been included in current and non-current liabilities at $4.3 million and $11.6 million respectively.

KLA allocated the purchase price to tangible and identified intangible assets acquired and liabilities assumed based on the preliminary estimates of their estimated fair values, which were determined using generally accepted valuation techniques based on estimates and assumptions made by management at the time of the Orbotech Acquisition and are subject to change during the measurement period which is not expected to exceed one year. The primary tasks that are required to be completed include validation of business level forecasts, jurisdictional forecasts, customer attrition rates and synergies expected to be derived from the acquisition of Orbotech, including any related tax impacts. Any adjustments to our preliminary purchase price allocation identified during the measurement period will be recognized in the period in which the adjustments are determined.

The operating results of Orbotech have been included in our consolidated financial statements for the three and nine months ended March 31, 2019 from the Acquisition Date. The goodwill was primarily attributable to the assembled workforce of Orbotech, planned growth in new markets and synergies expected to be achieved from the combined operations of KLA-Tencor and Orbotech. None of the goodwill is deductible for income tax purposes. Goodwill arising from the Orbotech Acquisition has been allocated to Orbotech which KLA is treating as a separate component as of March 31, 2019. As disclosed in Note 17 "Segment Reporting and Geographic Informaion", KLA is still in the process of completing the analysis of its segment reporting structure and upon completion of that analysis, goodwill associated with the Orbotech acquisition will be assigned to the appropriate reporting units.


Intangible Assets

The estimated fair value and weighted average useful life of the Orbotech intangible assets are as follows:
(In thousands)Fair Value Weighted Average Useful Lives
Existing technology(1)
$1,023,000
 8
Customer-related assets(2)
299,000
 8
Backlog(3)
29,000
 1
Trade name(4)
92,500
 7
Off market leases (5)

2,070
2,070
7
Total identified finite-lived intangible assets1,445,570
  
In-process research and development(6)
183,500
 N/A
Total identified intangible assets$1,629,070
  
________________
(1)Existing technology was identified from the products of Orbotech and its fair value was determined using the Relief-from-Royalty Method under the income approach, which estimates the cost savings generated by a company related to the ownership of an asset for which it would otherwise have had to pay royalties or license fees on revenues earned through the use of the asset. The discount rate used was determined at the time of measurement based on an analysis of the implied internal rate of return of the transaction, weighted average cost of capital and weighted average return on assets. The economic useful life was determined based on the technology cycle related to each developed technology, as well as the cash flows over the forecast period.
(2)Customer contracts and related relationships represent the fair value of the existing relationships with the Orbotech customers and its fair value was determined using the Multi-Period Excess Earning Method which involves isolating the net earnings attributable to the asset being measured based on present value of the incremental after-tax cash flows (excess earnings) attributable solely to the intangible asset over its remaining useful life. The economic useful life was determined based on historical customer turnover rates.
(3)Backlog primarily relates to the dollar value of purchase arrangements with customers, effective, as of a given point in time, that are based on mutually agreed terms which, in some cases, may still be subject to completion of written documentation and may be changed or cancelled by the customer, often without penalty. Orbotech’s backlog consists of these arrangements with assigned shipment dates expected, in most cases, within three to twelve months. The fair value was determined using the Multi-Period Excess Earning Method. The economic useful life is based on the time to fulfill the outstanding order backlog obligation.
(4)Trade name primarily relates to the “Orbotech” trade name. The fair value was determined by applying the relief-from-royalty method under the income approach. The economic useful life was determined based on the expected life of the trade name.
(5)The favorable / unfavorable components of the acquired leases were determined using the Income Approach which involves present valuing the difference in future cash flows between the contracted lease payments and the rent payable to a market participant over the lease terms. The economic useful life is based on the remaining lease term.
(6)The fair value of in-process research and development (“IPR&D”) was determined using the relief-from-royalty method under the income approach, which estimates the cost savings generated by a company related to the ownership of an asset for which it would otherwise have had to pay royalties or license fees on revenues earned through the use of the asset.

We believe the amounts of purchased intangible assets recorded above represent the fair values of and approximate the amounts a market participant would pay for, these intangible assets as of the acquisition date.

Our statements of operations for the three and nine months ended March 31, 2019 included revenue of $161.3 million and a net loss of $28.7 million from Orbotech.

Other Fiscal 2019 Acquisitions
During the three months ended DecemberMarch 31, 2017. The primary reason for the acquisition is2019 we acquired three privately-held companies primarily to expand the Company’s portfolio of products.

The following table represents the preliminaryour products and services offerings for an aggregate purchase price allocation and summarizesof $118.0 million, including the aggregatefair value of the promise to pay additional consideration of up to $13.0 million contingent on the achievement of certain milestones. As of March 31, 2019, the estimated fair value of the net assets acquired, includingadditional consideration was $4.8 million, which is classified as a post-closing working capital adjustment:
(In thousands)Preliminary Purchase Price Allocation
Intangible assets$17,660
Goodwill14,764
Assets acquired (including cash and marketable securities of $3.2 million)5,981
Liabilities assumed(1,334)
  Fair value of net assets acquired$37,071
current liability on the condensed consolidated balance sheet.

Goodwill representsDuring the excess of thethree months ended September 30, 2018 we acquired two privately-held companies for an aggregate purchase price overof $15.4 million, including the fair value of the net tangible and identifiable intangible assets acquired. promise to pay total additional consideration of up to $6.0 million contingent on the achievement of certain milestones. As of March 31, 2019, the estimated fair value of the additional consideration was $1.9 million, which is classified as a current liability on the condensed consolidated balance sheet.
None of these acquisitions were individually material to our consolidated financial statements.
The $14.8 millionaggregate purchase price of goodwillthe other fiscal 2019 acquisitions was assigned to the Global Service and Support (“GSS”), and the Other reporting units. Noneallocated on a preliminary basis as follows:
(In thousands)Fair Value
Net tangible assets (including Cash and cash equivalents of $2.6 million)$13,468
Identifiable intangible assets76,630
Goodwill43,357
Total$133,455
A portion of the goodwill recognized is deductible for income tax purposes. Our statements of operations for the three and nine months ended March 31, 2019 included revenues of $2.3 million and $3.1 million, respectively, and net losses of $2.8 million and $3.5 million, respectively, from these privately-held companies.
KLA, in the aggregate for the Orbotech and other fiscal 2019 acquisitions, incurred approximately $37.2 million of acquisition-related costs, which are primarily included within selling, general and administrative expenses in our condensed consolidated statements of operations.
Fiscal 2018 Acquisition
In the fiscal year ended June 30, 2018, we acquired a product line from Keysight Technologies, Inc., a related party, for a total purchase consideration of $12.1 million, of which $5.2 million was allocated to goodwill based on the fair value at the acquisition date. Goodwill recognized was deductible for income tax purposes. For additional details, refer to Note 5 “Business Combinations,” of the Notes to the Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2018.

Supplemental Unaudited Pro Forma Information:
The following unaudited pro forma financial information summarizes the combined results of operations for KLA-Tencor, Orbotech, and the three acquisitions completed in the third quarter of fiscal 2019 as if the companies were combined as of the beginning of fiscal year 2018. The unaudited pro forma information includes adjustments to amortization and depreciation for intangible assets and property, plant and equipment acquired, adjustments to stock-based compensation expense, the purchase accounting effect on inventory acquired, the purchase accounting effect on deferred revenue, interest expense and amortization of debt issuance costs associated with the Senior Notes financing, and transaction costs.

The table below reflects the impact of material and nonrecurring adjustments to the unaudited pro forma results for the three and nine months ended March 31, 2019 and 2018 that are directly attributable to the acquisitions:
 Three months ended Nine months ended
 March 31, March 31,
Non-recurring Adjustments (In thousands)
2019 2018 2019 2018
Decrease/ (increase) to revenue as a result of deferred revenue fair value adjustment$
 $(536) $
 $5,625
(Decrease) / increase to expense as a result of inventory fair value adjustment$78
 $468
 $1,029
 $85,904
(Decrease) / increase to expense as a result of transaction costs$(53,342) $(8,615) $(61,378) $65,535
(Decrease) / increase to expense as a result of compensation costs$1,724
 $3,009
 $7,918
 $39,820

The unaudited pro forma information presented below is for informational purposes only and is not necessarily indicative of our consolidated results of operations of the combined business had the acquisitions actually occurred at the beginning of fiscal year 2018 or of the results of our future operations of the combined businesses.

 Pro Forma Pro Forma
 Three months ended Nine months ended
 March 31, March 31,
(In thousands)2019 2018 2019 2018
Revenues$1,160,678
 $1,271,326
 $4,165,268
 $3,730,272
Net income attributable to KLA-Tencor$192,577
 $293,593
 $1,033,653
 $260,537

We have not included pro forma results of operations for the acquisition of privately-held companies completed in the first quarter of fiscal 2019 herein as they were not material to us on either an individual or in aggregate. We included the results of operations of each acquisition in our condensed consolidated statements of operations from the date of each acquisition.
NOTE 67 – GOODWILL AND PURCHASED INTANGIBLE ASSETS
Goodwill
Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in prior business combinations. The Company hasWe currently have four reporting units: Wafer Inspection, Patterning, Global Service and Support (“GSS”), and Others. The assignment of goodwill associated with Orbotech Acquisition to the reporting units has not yet been completed and therefore shown as a separate component. Refer to Note 17 “Segment Reporting and Geographic Information” for additional details. The following table presents goodwill balancescarrying value and the movements by reporting unit during the sixnine months ended DecemberMarch 31, 2017:2019:
(In thousands) Wafer Inspection Patterning GSS Others Total Wafer Inspection Patterning GSS Others Orbotech Total
Balance as of June 30, 2017 $281,095
 $53,255
 $2,856
 $12,320
 $349,526
Balance as of June 30, 2018 $281,005
 $53,255
 $8,039
 $12,399
 $
 $354,698
Acquired goodwill 
 24,863
 17,318
 1,176
 1,773,544
 1,816,901
Foreign currency and other adjustments 13
 
 97
 387
 497
 (14) 
 
 
 1,317
 1,303
Balance as of December 31, 2017 $281,108
 $53,255
 $2,953
 $12,707
 $350,023
Balance as of March 31, 2019 $280,991
 $78,118
 $25,357
 $13,575
 $1,774,861
 $2,172,902
Goodwill is net of accumulated impairment losses of $277.6 million, which were recorded priorThe change in goodwill during the nine months ended March 31, 2019 resulted primarily from $1.77 billion related to the fiscal year ended June 30, 2014.Orbotech Acquisition and $43.4 million related to the acquisition of the privately-held companies during the period. For additional details, refer to Note 6 “Business Combinations”.

The CompanyWe performed a qualitative assessment of the goodwill byfor our wafer inspection, patterning, GSS, and others reporting unit as of November 30, 2017units during the three months ended DecemberMarch 31, 2017 as part of its annual goodwill impairment2019. Based on this assessment andwe concluded that it was more likely than not that the fair value of each of the reporting units exceeded its carrying amount. As a result of the Company’sour determination following itsbased on our qualitative assessment, it was not necessary to perform the quantitative goodwill impairment test at this time. In assessing the qualitative factors, the Companywe considered the impact of key factors, including changes in the industry and competitive environment, market capitalization, stock price, earnings multiples, budgeted-to-actual revenue performance from prior year, gross margin and cash flows from operating activities. In addition, for goodwill associated with the Orbotech acquisition, no impairment indicators were identified as part of our goodwill impairment process.
Based on the Company’sour assessment, goodwill in the reporting units was not impaired as of DecemberMarch 31, 20172019 or June 30, 2017.2018.

Purchased Intangible Assets
The components of purchased intangible assets as of the dates indicated below were as follows:
(In thousands)  As of
December 31, 2017
 As of
June 30, 2017
  As of
March 31, 2019
 As of
June 30, 2018
Category
Range of
Useful Lives
 
Gross
Carrying
Amount
 
Accumulated
Amortization
and
Impairment
 
Net
Amount
 
Gross
Carrying
Amount
 
Accumulated
Amortization
and
Impairment
 
Net
Amount
Range of
Useful Lives
 
Gross
Carrying
Amount
 
Accumulated
Amortization,
Impairment, and Other
 
Net
Amount
 
Gross
Carrying
Amount
 
Accumulated
Amortization
and
Impairment
 
Net
Amount
Existing technology4-7 years $157,259
 $142,459
 $14,800
 $157,259
 $140,346
 $16,913
4-8 years $1,238,037
 $161,827
 $1,076,210
 $160,859
 $144,202
 $16,657
Trade name/Trademark7 years 20,993
 19,981
 1,012
 20,993
 19,902
 1,091
5-7 years 115,573
 21,638
 93,935
 20,993
 20,060
 933
Customer relationships7-8 years 55,680
 55,036
 644
 55,680
 54,959
 721
4-9 years 370,665
 59,740
 310,925
 56,680
 55,136
 1,544
Backlog<1 year 260
 153
 107
 260
 22
 238
Backlog and other<1-8.5 years 35,437
 5,267
 30,170
 660
 461
 199
Intangible assets subject to amortization 1,759,712
 248,472
 1,511,240
 239,192
 219,859
 19,333
In-process research and development 183,500
 427
 183,073
 
 
 
Total $234,192
 $217,629
 $16,563
 $234,192
 $215,229
 $18,963
 $1,943,212
 $248,899
 $1,694,313
 $239,192
 $219,859
 $19,333
IntangiblePurchased intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. The change in purchased intangible assets gross carrying amount resulted primarily from the Orbotech Acquisition and the acquisition of the privately-held companies. For additional details, refer to Note 6 “Business Combinations.”
For the three months ended December 31, 2017 and 2016, amortizationAmortization expense for purchased intangible assets for the periods indicated below was $1.2 million and $0.5 million, respectively. Foras follows:
 Three months ended Nine months ended
 March 31, March 31,
(In thousands)2019 2018 2019 2018
Amortization expense- Cost of revenues$15,770
 $1,122
 $17,628
 $3,366
Amortization expense- Selling, general and administrative10,086
 65
 10,973
 220
Amortization expense- Research and development12
 
 12
 
Total$25,868
 $1,187
 $28,613
 $3,586
Based on the six months ended December 31, 2017 and 2016, amortization expense for purchased intangible assets was $2.4 million and $1.8 million, respectively. Based on the intangible assetsgross carrying amount recorded as of DecemberMarch 31, 20172019, and assuming no subsequent additions to, or impairment of, the underlying assets, the remaining estimated annual amortization expense is expected to be as follows:
Fiscal year ending June 30:
Amortization
(In thousands)
Amortization
(In thousands)
2018 (remaining 6 months)$1,851
20192,486
2019 (remaining 3 months)$59,114
20202,486
216,956
20212,486
196,915
20222,486
196,915
2023195,691
Thereafter4,768
645,649
Total$16,563
$1,511,240

NOTE 78 – DEBT
The following table summarizes theour debt of the Company as of DecemberMarch 31, 20172019 and June 30, 2017:2018:
 As of December 31, 2017 As of June 30, 2017
 
Amount
(In thousands)
 
Effective
Interest Rate
 Amount
(In thousands)
 
Effective
Interest Rate
Fixed-rate 2.375% Senior notes due on November 1, 2017$
 % $250,000
 2.396%
Fixed-rate 3.375% Senior notes due on November 1, 2019250,000
 3.377% 250,000
 3.377%
Fixed-rate 4.125% Senior notes due on November 1, 2021500,000
 4.128% 500,000
 4.128%
Fixed-rate 4.650% Senior notes due on November 1, 2024(1)
1,250,000
 4.682% 1,250,000
 4.682%
Fixed-rate 5.650% Senior notes due on November 1, 2034250,000
 5.670% 250,000
 5.670%
Term loans
 % 446,250
 2.137%
Revolving Credit Facility250,000
 2.634% 
 %
Total debt2,500,000
   2,946,250
  
Unamortized discount(2,704)   (2,901)  
Unamortized debt issuance costs(10,870)   (12,892)  
Total debt$2,486,426
   $2,930,457
  
Reported as:       
Current portion of long-term debt$
   $249,983
  
Long-term debt2,486,426
   2,680,474
  
 Total debt$2,486,426
   $2,930,457
  
 As of March 31, 2019 As of June 30, 2018
 
Amount
(In thousands)
 
Effective
Interest Rate
 Amount
(In thousands)
 
Effective
Interest Rate
Fixed-rate 3.375% Senior Notes due on November 1, 2019$250,000
 3.377% $250,000
 3.377%
Fixed-rate 4.125% Senior Notes due on November 1, 2021500,000
 4.128% 500,000
 4.128%
Fixed-rate 4.650% Senior Notes due on November 1, 20241,250,000
 4.682% 1,250,000
 4.682%
Fixed-rate 5.650% Senior Notes due on November 1, 2034250,000
 5.670% 250,000
 5.670%
Fixed-rate 4.1000% Senior Notes due on March 15, 2029800,000
 4.159% 
 %
Fixed-rate 5.000% Senior Notes due on March 15, 2049400,000
 5.047% 
 %
    Total3,450,000
   2,250,000
  
Unamortized discount(8,948)   (2,523)  
Unamortized debt issuance costs(18,406)   (10,075)  
    Total$3,422,646
   $2,237,402
  
Reported as:       
Current portion of long-term debt$249,997
   $
  
Long-term debt3,172,649
   2,237,402
  
    Total$3,422,646
   $2,237,402
  
__________________ 
(1)The effective interest rate disclosed above for this series of Senior Notes excludes the impact of the treasury rate lock hedge discussed below. The effective interest rate including the impact of the treasury rate lock hedge was 4.626%.
As of DecemberMarch 31, 2017,2019, future principal payments for the long-term debt are summarized as follows:
$250.0 million in fiscal year 2020; $500.0 million in fiscal year 2022; and $2.70 billion after fiscal year 2023.
Fiscal year ending June 30:
Amount
(In thousands)
2018 (remaining 6 months)$
2019
2020250,000
2021
2022500,000
Thereafter1,750,000
Total payments$2,500,000

Senior Notes:
In March 2019 and November 2014, the Companywe issued $1.20 billion and $2.50 billion, respectively (each, a “2019 Senior Notes”, a “2014 Senior Notes”, and collectively the “Senior Notes”), aggregate principal amount of senior, unsecured long-term notes (collectively referred to as “Senior Notes”). The Company issued the Senior Notes as part of the leveraged recapitalization plan under which the proceeds from the Senior Notes in conjunction with the proceeds from the term loans (described below) and cash on hand were used (x) to fund a special cash dividend of $16.50 per share, aggregating to approximately $2.76 billion, (y) to redeem $750.0 million of 2018 Senior Notes, including associated redemption premiums, accrued interest and other fees and expenses and (z) for other general corporate purposes, including repurchases of shares pursuant to the Company’s stock repurchase program. notes.
The interest rate specified for each series of the 2014 Senior Notes will be subject to adjustments from time to time if Moody’s Investor Service, Inc. (“Moody’s”) or Standard & Poor’s Ratings Services (“S&P”) or, under certain circumstances, a substitute rating agency selected by us as a replacement for Moody’s or S&P, as the case may be (a “Substitute Rating Agency”), downgrades (or subsequently upgrades) its rating assigned to the respective series of the 2014 Senior Notes such that the adjusted rating is below investment grade. IfFor additional details, refer to Note 7 “Debt” of the adjusted rating of anyNotes to the Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2018. Unlike the 2014 Senior Notes, the interest rate for each series of Senior Notes from Moody’s (or, if applicable, any Substitute Rating Agency) is decreased to Ba1, Ba2, Ba3 or B1 or below, the stated interest rate on such series of Senior Notes as noted above will increase by 25 bps, 50 bps, 75 bps or 100 bps, respectively (“bps” refers to Basis Points and 1% is equal to 100 bps). If the rating of any series of Senior Notes from S&P (or, if applicable, any Substitute Rating Agency) with respect to such series of Senior Notes is decreased to BB+, BB, BB- or B+ or below, the stated interest rate on such series of Senior Notes as noted above will increase by 25 bps, 50 bps, 75 bps or 100 bps, respectively. The interest rates on any series of2019 Senior Notes will permanently cease tonot be subject to any adjustment (notwithstanding any subsequent decrease insuch adjustments. During the ratings by any of Moody’s, S&P and, if applicable, any Substitute Rating Agency) if suchthree months ended June 30, 2018, we entered into a series of Senior Notes becomes rated “Baa1” (or its equivalent) or higher by Moody’s (or, if applicable, any Substitute Rating Agency) and “BBB+” (or its equivalent) or higher by S&P (or, if applicable, any Substitute Rating Agency), or oneforward contracts (the “2018 Rate Lock Agreements”) to lock the benchmark interest rate with notional amount of those ratings if rated by only one of Moody’s, S&P and, if applicable, any Substitute Rating Agency,$500.0 million in each case with a stable or positive outlook.aggregate. In October 2014, the Companywe entered into a series of forward contracts to lock the 10-year treasury rate (“benchmark rate”) on a portion of the 2014 Senior Notes with a notional amount of $1.00 billion in aggregate. For additional details on the forward contracts, refer to Note 14,15, “Derivative Instruments and Hedging Activities.”Activities” of this report.
The original discountdiscounts on the 2019 Senior Notes and the 2014 Senior Notes amounted to $6.7 million and $4.0 million, respectively and isare being amortized over the life of the debt. Interest is payable semi-annually on May 1 and November 1 of each year.year for the 2014 Senior Notes and semi-annually on March 15 and September 15 of each year for the 2019 Senior Notes. The debt indenture for the Senior Notes (the “Indenture”) includes covenants that limit the Company’sour ability to grant liens on itsour facilities and enter into sale and leaseback transactions, subject to certain allowances under which certain sale and leaseback transactions are not restricted.
In certain circumstances involving a change of control followed by a downgrade of the rating of a series of Senior Notes by at least two of Moody’s, S&P and Fitch Inc., unless the Company haswe have exercised its rightour rights to redeem the Senior Notes of such series, the Companywe will be required to make an offer to repurchase all or, at the holder’s option, any part, of each holder’s Senior Notes of that series pursuant to the offer described below (the “Change of Control Offer”). In the Change of Control Offer, the Companywe will be required to offer payment in cash equal to 101% of the aggregate principal amount of Senior Notes repurchased plus accrued and unpaid interest, if any, on the Senior Notes repurchased, up to, but not including, the date of repurchase.
In November 2017, the Company repaid $250.0 million of Senior Notes at maturity.
Based on the trading prices of the Senior Notes on the applicable dates, the fair value of the Senior Notes as of DecemberMarch 31, 20172019 and June 30, 20172018 was approximately $2.41$3.61 billion and $2.67$2.33 billion, respectively. While the Senior Notes are recorded at cost, the fair value of the long-term debt was determined based on quoted prices in markets that are not active; accordingly, the long-term debt is categorized as Level 2 for purposes of the fair value measurement hierarchy.
As of DecemberMarch 31, 2017, the Company was2019, we were in compliance with all of itsour covenants under the Indenture associated with the Senior Notes.

Credit Facility (Term Loans and Unfunded Revolving Credit Facility) and Revolving Credit Facility:
In November 2014, the Company entered into $750.0 million of five-year senior unsecured prepayable term loans and a $500.0 million unfunded revolving credit facility (collectively, the “Credit Facility”).
In November 2017, the Companywe entered into a Credit Agreement (the “Credit Agreement”) providing for a $750.0 million five-year unsecured revolving credit facilityRevolving Credit Facility (the “Revolving Credit Facility”), which replaced itsour prior Credit Facility. Subject to the terms of the Credit Agreement, the Revolving Credit Facility may be increased in an amount up to $250.0 million in the aggregate. As of December 31, 2017 afterIn November 2018, we entered into an Incremental Facility, Extension and Amendment Agreement (the “Amendment”), which amends the Credit Agreement to (a) extend the Maturity Date (the “Maturity Date”) from November 30, 2022 to November 30, 2023, (b) increase the total commitment by $250.0 million and (c) effect certain other amendments to the Credit Agreement as set forth in the Amendment. After giving effect to the Amendment, the total commitments under the Credit Agreement are $1.00 billion. During the third quarter of the fiscal year ending June 30, 2019, we made borrowings made onof $900.0 million from the closing date,Revolving Credit Facility, which were paid in full in the Companysame quarter. As of March 31, 2019, we had no outstanding $250.0 million aggregate principal amount of borrowings under the Revolving Credit Facility. The proceeds from the borrowings on the closing date, together with the cash on hand was used to pay in full the remaining term loan balance under the Credit Facility.
The CompanyWe may borrow, repay and reborrow funds under the Revolving Credit Facility until its maturity on November 30, 2022 (the “Maturity Date”),the Maturity Date, at which time such Revolving Credit Facility will terminate, and all outstanding loans under such facility, together with all accrued and unpaid interest, must be repaid. The CompanyWe may prepay outstanding borrowings under the Revolving Credit Facility at any time without a prepayment penalty.
Borrowings under the Revolving Credit Facility will bear interest, at the Company’sour option, at either: (i) the Alternative Base Rate (“ABR”) plus a spread, which ranges from 0 bps to 75 bps, or (ii) the London Interbank Offered Rate (“LIBOR”) plus a spread, which ranges from 100 bps to175to 175 bps. The spreads under ABR and LIBOR are subject to adjustment in conjunction with credit rating downgrades or upgrades. The Company isWe are also obligated to pay an annual commitment fee on the daily undrawn balance of the Revolving Credit Facility, which ranges from 10 bps to 25 bps, subject to an adjustment in conjunction with changes to the Company’sour credit rating. As of DecemberMarch 31, 2017, the Company elected to2019, we pay interest on the borrowed amount under the Revolving Credit Facility at LIBOR plus a spread of 125 bps, and an annual commitment fee of 1512.5 bps on the daily undrawn balance of the Revolving Credit Facility.
The Revolving Credit Facility requires the Companyus to maintain an interest expense coverage ratio as described in the Credit Agreement, on a quarterly basis, covering the trailing four consecutive fiscal quarters of no less than 3.50 to 1.00. In addition, the Company iswe are required to maintain the maximum leverage ratio as described in the Credit Agreement, on a quarterly basis of 3.00 to 1.00, covering the trailing four consecutive fiscal quarters for each fiscal quarter, which can be increased to 4.00 to 1.00 for a period of time in connection with a material acquisition or a series of material acquisitions. As of March 31, 2019, we elected to increase the maximum allowed leverage ratio to 4.00 to 1.00 following the Orbotech Acquisition.
The Company wasWe were in compliance with all covenants under the Credit Agreement as of DecemberMarch 31, 2017.2019.
NOTE 89 – EQUITY, AND LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST
Equity Incentive Program
As of DecemberMarch 31, 2017, the Company had two plans under which the Company was2019, we were able to issue new equity incentive awards, such as restricted stock units (“RSUs”) and stock options, to itsour employees, consultants and members of itsour Board of Directors: theDirectors under our 2004 Equity Incentive Plan (the “2004 Plan”) and the 1998 Director Plan (the “Outside Director Plan”).
2004 Plan:
The 2004 Plan provides for the grant of options to purchase shares of the Company’s common stock, stock appreciation rights, restricted stock units, performance shares, performance units and deferred stock units to the Company’s employees, consultants and members of its Board of Directors. As of December 31, 2017, 2.5with 11.8 million shares were available for issuance under the 2004 Plan.issuance.
Any 2004 Plan awardsFor details of restricted stock units, performance shares, performance units or deferred stock units with a per share or unit purchase price lower than 100% of fair market value on the grant date are counted against the total number of shares issuable under the 2004 Plan as follows, based on the grant daterefer to Note 8 “Equity and Long-Term Incentive Compensation Plans,” of the applicable award: (a)Notes to the Consolidated Financial Statements included in our Annual Report on Form 10-K for any such awards granted before November 6, 2013, the awards counted against the 2004 Plan share reserve as 1.8 shares for every one share subject thereto; and (b) for any such awards granted on or after November 6, 2013, the awards count against the 2004 Plan share reserve as 2.0 shares for every one share subject thereto.fiscal year ended June 30, 2018.
In addition, the plan administrator has the ability to grant “dividend equivalent” rights in connection with awards of restricted stock units, performance shares, performance units and deferred stock units before they are fully vested. The plan administrator, at its discretion, may grant a right to receive dividends on the aforementioned awards which may be settled in cash or Company stock at the discretion
Assumed Equity Plans
As of the plan administrator subject to meetingAcquisition Date we assumed outstanding equity incentive awards under the vesting requirementfollowing Orbotech equity incentive plans: (i) Equity Remuneration Plan for Key Employees of Orbotech Ltd. and its Affiliates and Subsidiaries (as Amended and Restated in 2005), (ii) 2010 Equity-Based Incentive Plan, and (iii) 2015 Equity-Based Incentive Plan (each, an “Assumed Equity Plan” and collectively the underlying awards.

Outside Director Plan
“Assumed Equity Plans”). The Outside Director Plan only permitsawards under the issuanceAssumed Equity Plans, previously issued in the form of stock options and restricted share units (“RSUs”), were generally settled as follows:
a)Each award of Orbotech’s stock options and RSUs that was outstanding and vested immediately prior to the Acquisition Date (collectively the “Vested Equity Awards”) was canceled and terminated and converted into the right to receive the purchase consideration in respect of such Vested Equity Awards as of the Acquisition Date, and in the case of stock options, less the exercise price.
b)Each award of Orbotech’s stock options and RSUs that was outstanding and unvested immediately prior to the Acquisition Date was assumed by us (each, an “Assumed Option” and “Assumed RSU”, and collectively the “Assumed Equity Awards”) and converted to stock options and RSUs exercisable for the number of shares of our common stock equal to the product of (i) the number of Orbotech shares underlying such Assumed Equity Awards as of immediately prior to the Acquisition Date multiplied by (ii) the exchange ratio defined in the Acquisition Agreement. The Assumed Equity Awards generally retain all of the rights, terms and conditions of the respective plans under which they were originally granted, including the same service-based vesting schedule, applicable thereto.
As of the Acquisition Date, the estimated fair value of the Assumed Equity Awards was $55.0 million, of which $13.3 million was recognized as goodwill and the balance of $41.7 million will be recognized as stock-based compensation expense over the remainder term of the Assumed Equity Awards. The fair value of the Assumed Equity Awards for services rendered through the Acquisition Date was recognized as a component of the merger consideration, with the remaining fair value related to the non-employee memberspost-combination services to be recorded as stock-based compensation over the remaining vesting period.
A total of 14,558 and 518,971 shares of our common stock underly the BoardAssumed Options and RSUs and have an estimated weighted average fair value at the Acquisition Date of Directors.$53.27 and $104.49 per share, respectively. As of DecemberMarch 31, 2017, 1.7 million2019, there were 14,558 and 482,317 shares were available for grantof our common stock underlying the outstanding Assumed Options and RSUs, respectively, under the Outside Director Plan.Assumed Equity Plans. The weighted-average remaining contractual terms, the aggregate intrinsic values, and the weighted average exercise price for the stock options outstanding under the Assumed Equity Plans as of March 31, 2019 were 4.67 years, $1.0 million, and $54.00 per share, respectively. No Assumed Options were exercised during the three months ended March 31, 2019.
Equity Incentive Plans - General Information
The following table summarizes the combined activity under the Company’sour equity incentive plans for the indicated periods:plans:
(In thousands)
Available
For Grant(1) (5)
Balance as of June 30, 201720184,7103,680
Plan shares increased12,000
Restricted stock units granted (2)(3)
(6652,209)
Restricted stock units granted adjustment (3)(4)
335
Restricted stock units canceled5920
Plan shares expired (1998 Director Plan)(1,660)
Balance as of DecemberMarch 31, 201720194,13711,836
__________________ 
(1)The number of restricted stock unitsRSUs reflects the application of the award multiplier as described above (1.8x or 2.0x depending on the grant date of the applicable award).
(2)Includes restricted stock unitsRSUs granted to senior management during the sixnine months ended DecemberMarch 31, 20172019 with performance-based vesting criteria (in addition to service-based vesting criteria for any of such restricted stock unitsRSUs that are deemed to have been earned) (“performance-based RSUs”). As of DecemberMarch 31, 2017,2019, it had not yet been determined the extent to which (if at all) the performance-based vesting criteria had been satisfied. Therefore, this line item includes all such performance-based restricted stock unitsRSUs granted during the sixnine months ended DecemberMarch 31, 2017,2019, reported at the maximum possible number of shares that may ultimately be issuable if all applicable performance-based criteria are achieved at their maximum levels and all applicable service-based criteria are fully satisfied (0.3(0.7 million shares for the sixnine months ended DecemberMarch 31, 20172019 reflects the application of the multiplier described above).

(3)Includes RSUs granted to executive management during the three months ended March 31, 2019 with both a market condition and a service condition (“market-based RSUs”). Under the award agreements, the vesting of the market-based RSUs is contingent on achieving total stockholder return (including stock price appreciation and cash dividends) objectives on a per share basis of equal to or greater than 150%, 175% and 200% multiplied by the measurement price of $116.39 during the five-year period ending March 20, 2024. The awards are split into three tranches and, to the extent that total stockholder return targets have been met, one-third of the maximum number of shares available under these awards will vest on each of the third, fourth, and fifth anniversaries of the grant date. This line item includes all such market-based RSUs granted during the three months ended March 31, 2019 reported at the maximum possible number of shares that may ultimately be issuable if all applicable market-based criteria are met at their maximum levels and all applicable service-based criteria are fully satisfied (0.5 million shares for the nine months ended March 31, 2019 reflects the application of the multiplier described above).
(3)(4)Represents the portion of restricted stock unitsRSUs granted with performance-based vesting criteria and reported at the actual number of shares issued upon achievement of the performance vesting criteria during the sixnine months ended DecemberMarch 31, 2017.2019.
(5)No additional stock options, RSUs or other awards will be granted under the Assumed Equity Plans.
The fair value of stock-based awards is measured at the grant date and is recognized as an expense over the employee’s requisite service period. For restricted stock unitsRSUs granted without “dividend equivalent” rights, fair value is calculated using the closing price of the Company’sour common stock on the grant date, adjusted to exclude the present value of dividends which are not accrued on those restricted stock units.RSUs. The fair value for restricted stock unitsRSUs granted with “dividend equivalent” rights is determined using the closing price of the Company’sour common stock on the grant date. AsThe fair value for market-based RSUs is estimated on the grant date using a Monte Carlo simulation model with the following assumptions: expected volatility of December 31, 2017,28.14%, based on a combination of implied volatility from traded options on our common stock and the Company accrued $7.6 millionhistorical volatility of dividends payable,our common stock; dividend yield of 2.47%, based on our current expectations about our anticipated dividend policy; risk-free interest rate of 2.38%, based on the implied yield available on U.S. Treasury zero-coupon issues with terms equal to the contractual terms of each tranche; and an expected term which included both a special cash dividendtakes into consideration the vesting term and regular quarterly cash dividends for the unvested restricted stock units outstanding ascontractual term of the dividend record date.market-based award. The awards are amortized over service periods of 3, 4, and 5 years, which is the longer of the explicit service period or the period in which the market target is expected to be met. The fair value for purchase rights under the Company’sour Employee Stock Purchase Plan is determined using a Black-Scholes valuation model.
The following table shows pre-tax stock-based compensation expense for the indicated periods: 
Three months ended
December 31,
 Six months ended
December 31,
Three months ended
March 31,
 Nine months ended
March 31,
(In thousands)2017 2016 2017 2016
2019 (1)
 2018 2019 2018
Stock-based compensation expense by:              
Costs of revenues$1,656
 $1,305
 $3,072
 $2,567
$3,105
 $2,386
 $6,759
 $5,458
Research and development2,275
 2,052
 4,446
 4,073
4,986
 3,185
 9,988
 7,631
Selling, general and administrative9,808
 9,087
 20,252
 17,282
26,102
 10,639
 49,279
 30,891
Total stock-based compensation expense$13,739
 $12,444
 $27,770
 $23,922
$34,193
 $16,210
 $66,026
 $43,980
__________________
(1)Includes $10.9 million of stock-based compensation expense acceleration for certain equity awards for Orbotech employees.
The following table shows stock-based compensation capitalized as inventory as of the dates indicated below: 
(In thousands)As of
December 31, 2017
 As of
June 30, 2017
As of
March 31, 2019
 As of
June 30, 2018
Inventory$3,039
 $2,820
$4,943
 $4,580

Restricted Stock Units
The following table shows the applicable number of restricted stock unitsactivity and weighted-average grant date fair value for restricted stock units granted, vested and released, withheld for taxes, and forfeitedRSUs during the sixnine months ended DecemberMarch 31, 2017 and restricted stock units outstanding as of December 31, 2017 and June 30, 20172019:
Restricted Stock Units
Shares(1)
(In thousands)
 
Weighted-Average
Grant Date
Fair Value
Outstanding restricted stock units as of June 30, 2017(2)
2,241
 $68.24
Shares(1)
(In thousands)
 
Weighted-Average
Grant Date
Fair Value
Outstanding restricted stock units as of June 30, 2018(2)
2,014
 $76.50
Granted(2)
333
 $91.39
1,104
 $103.59
Granted adjustments(3)
(17) $74.26
(2) $50.88
Assumed upon Orbotech Acquisition(4)
519
 $104.49
Vested and released(379) $63.22
(409) $68.73
Withheld for taxes(283) $63.22
(285) $68.73
Forfeited(30) $66.10
(10) $81.55
Outstanding restricted stock units as of December 31, 2017(2)
1,865
 $74.13
Outstanding restricted stock units as of March 31, 2019(2)
2,931
 $93.46
__________________ 
(1)Share numbers reflect actual shares subject to awarded restricted stock units. As described above, underRSUs. Under the terms of the 2004 Plan, the number of shares subject to each award reflected in this number is multiplied by either 1.8x or 2.0x (depending on the grant date of the award) to calculate the impact of the award on the share reserve under the 2004 Plan.
(2)
Includes restricted stock units granted to senior management with performance-based vesting criteria (in addition to service-based vesting criteria for any of such restricted stock units that are deemed to have been earned).and market-based RSUs. As of DecemberMarch 31, 2017,2019, it had not yet been determined the extent to which (if at all) the performance-based or market-based vesting criteria had been satisfied. Therefore, this line item includes all such performance-based restricted stock units,RSUs reported at the maximum possible number of shares (0.3 million shares for the fiscal year ended June 30, 2016, 42(42 thousand shares for the fiscal year ended June 30, 2017, and 0.2 million shares for the sixfiscal year ended June 30, 2018 and 0.6 million shares for the nine months ended DecemberMarch 31, 2017)2019) that may ultimately be issuable if all applicable performance-based and market-based criteria are achieved at their maximum and all applicable service-based criteria are fully satisfied.
(3)
Represents the portion of restricted stock unitsRSUs granted with performance-based vesting criteria and reported at the actual number of shares issued upon achievement of the performance vesting criteria during sixnine months ended DecemberMarch 31, 2017.
2019.
(4)Represents Assumed RSUs under the Assumed Equity Plans. Since the Assumed RSUs do not have “dividend equivalent” rights, the fair value was calculated using the closing price of our common stock on the Acquisition Date, adjusted to exclude the present value of dividends.

The restricted stock unitsRSUs granted by the Companyus generally vest (a) with respect to awards with only service-based vesting criteria, in three orover periods ranging from two to four equal installmentsyears and (b) with respect to awards with both performance-based and service-based vesting criteria, in two equal installments on the third and fourth anniversaries of the grant date and (c) with respect to awards with both market-based and service-based vesting criteria in three equal installments on the third, fourth and fifth anniversaries of the grant date, in each case subject to the recipient remaining employed by the Companyus as of the applicable vesting date. The restricted stock unitsRSUs granted to the independent members of the boardBoard of directorsDirectors vest annually. 
The following table shows the weighted-average grant date fair value per unit for the restricted stock unitsRSUs granted, and the restricted stock units vested, and tax benefits realized by the Companyus in connection with vested and released restricted stock unitsRSUs for the indicated periods:periods:
Three months ended
December 31,
 Six months ended
December 31,
Three months ended
March 31,
 Nine months ended
March 31,
(In thousands, except for weighted-average grant date fair value)2017 2016 2017 20162019 2018 2019 2018
Weighted-average grant date fair value per unit$105.15
 $75.38
 $91.39
 $70.95
$97.60
 $109.80
 $103.59
 $91.84
Weighted-average fair value per unit assumed upon Orbotech Acquisition$104.49
 $
 $104.49
 $
Grant date fair value of vested restricted stock units$5,322
 $1,843
 $41,856
 $31,051
$4,740
 $745
 $47,674
 $42,601
Tax benefits (expense) realized by the Company in connection with vested and released restricted stock units$(1,930) $765
 $16,482
 $14,694
Tax benefits realized by us in connection with vested and released restricted stock units$170
 $249
 $10,900
 $16,731
As of DecemberMarch 31, 2017,2019, the unrecognized stock-based compensation expense balance related to restricted stock unitsRSUs was $104.8$171.5 million, excluding the impact of estimated forfeitures, and will be recognized over a weighted-average remaining contractual term and an estimated weighted-average amortization period of 1.6 years. The intrinsic value of outstanding restricted stock unitsRSUs as of DecemberMarch 31, 20172019 was $196.0$350.0 million.

Cash-Based Long-Term Incentive Compensation
The Company hasWe have adopted a cash-based long-term incentive (“Cash LTI”LTI Plan”) program for many of itsour employees as part of the Company’sour employee compensation program. During the six months ended December 31, 2017 and 2016, the Company approved Cash LTI awards of $4.0 million and $50.3 million, respectively under the Company’s Cash Long-Term Incentive Plan (“Cash LTI Plan”). The Company changed the timing of its annual grants for its employees resulting in the Cash LTI awards being lower during the six months ended December 31, 2017 compared to the six months ended December 31, 2016. Cash LTI awards issued to employees under the Cash LTI Plan will vest in three or four equal installments, with one-third or one-fourth of the aggregate amount of the Cash LTI award vesting on each anniversary of the grant date over a three or four-year period. In order to receive payments under a Cash LTI award, participants must remain employed by the Company as of the applicable award vesting date. Executives and non-employee Board members of the board of directors are not participating in this program. During the nine months ended March 31, 2019 and 2018, we approved Cash LTI awards of $7.9 million and $5.9 million, respectively under our Cash LTI Plan. During the three months ended DecemberMarch 31, 20172019 and 2016, the Company2018, we recognized $11.5$12.2 million and $11.211.6 million, respectively, in compensation expense under the Cash LTI Plan. During the sixnine months ended DecemberMarch 31, 20172019 and 2016, the Company2018, we recognized $26.3$39.4 million and $23.437.9 million, respectively, in compensation expense under the Cash LTI Plan. As of DecemberMarch 31, 2017,2019, the unrecognized compensation balance (excluding the impact of estimated forfeitures) related to the Cash LTI Plan was $102.4$93.7 million. For details, refer to Note 8 “Equity and Long-Term Incentive Compensation Plans,” of the Notes to the Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2018.
Employee Stock Purchase Plan
KLA-Tencor’sOur Employee Stock Purchase Plan (“ESPP”) provides that eligible employees may contribute up to 10%15% of their eligible earnings toward the semi-annual purchase of KLA-Tencor’sour common stock. Effective January 2, 2018, eligible employees may contribute up to 15% of their eligible earnings. The ESPP is qualified under Section 423 of the Internal Revenue Code. The employee’s purchase price is derived from a formula based on the closing price of the common stock on the first day of the offering period versus the closing price on the date of purchase (or, if not a trading day, on the immediately preceding trading day).
The offering period (or length of the look-back period) under the ESPP has a duration of six months, and the purchase price with respect to each offering period beginning on or after such date is, until otherwise amended, equal to 85% of the lesser of (i) the fair market value of the Company’sour common stock at the commencement of the applicable six-month offering period or (ii) the fair market value of the Company’sour common stock on the purchase date. The Company estimatesWe estimate the fair value of purchase rights under the ESPP using a Black-Scholes valuation model.
The fair value of each purchase right under the ESPP was estimated on the date of grant using the Black-Scholes option valuation model and the straight-line attribution approach with the following weighted-average assumptions: 
Three months ended
December 31,
 Six months ended
December 31,
Three months ended
March 31,
 Nine months ended
March 31,
2017 2016 2017 20162019 2018 2019 2018
Stock purchase plan:              
Expected stock price volatility25.9% 20.6% 25.9% 20.6%36.3% 31.5% 33.2% 28.7%
Risk-free interest rate0.9% 0.4% 0.9% 0.4%2.4% 1.3% 2.1% 1.1%
Dividend yield2.6% 3.0% 2.6% 3.0%3.3% 2.4% 3.1% 2.5%
Expected life (in years)0.5
 0.5
 0.5
 0.5
0.5
 0.5
 0.5
 0.5
The following table shows the tax benefits realized by the Companyus in connection with the disqualifying dispositions of shares purchased under the ESPP and the weighted-average fair value per share for the indicated periods: 
(In thousands, except for weighted-average fair value per share)Three months ended
December 31,
 Six months ended
December 31,
Three months ended
March 31,
 Nine months ended
March 31,
2017 2016 2017 20162019 2018 2019 2018
Total cash received from employees for the issuance of shares under the ESPP$20,579
 $23,694
 $20,579
 $23,694
$
 $
 $20,556
 $20,579
Number of shares purchased by employees through the ESPP264
 384
 264
 384

 
 270
 264
Tax benefits realized by the Company in connection with the disqualifying dispositions of shares purchased under the ESPP$47
 $218
 $894
 $922
Tax benefits realized by us in connection with the disqualifying dispositions of shares purchased under the ESPP$444
 $787
 $1,047
 $1,681
Weighted-average fair value per share based on Black-Scholes model$19.04
 $14.05
 $19.04
 $14.05
$21.25
 $23.61
 $21.67
 $21.89
The ESPP shares are replenished annually on the first day of each fiscal year by virtue of an evergreen provision. The provision allows for share replenishment equal to the lesser of 2.0 million shares or the number of shares which KLA-Tencor estimateswe estimate will be required to be issued under the ESPP during the forthcoming fiscal year. As of DecemberMarch 31, 2017,2019, a total of 2.4 million shares were reserved and available for issuance under the ESPP.

Quarterly cash dividends
On November 1, 2017, the Company’sJanuary 31, 2019, our Board of Directors declared a regular quarterly cash dividend of $0.59$0.75 per share on the outstanding shares of the Company’sour common stock, which was paid on DecemberMarch 1, 20172019 to the stockholders of record as of the close of business on NovemberFebruary 15, 2017.2019. The total amount of regular quarterly cash dividends and dividend equivalents paid by the Company during the three months ended DecemberMarch 31, 20172019 and 20162018 was $92.6$113.6 million and $84.5$92.1 million, respectively. The total amount of regular quarterly cash dividends and dividend equivalents paid by the Companyus during the sixnine months ended DecemberMarch 31, 20172019 and 20162018 was $186.7$348.0 million and $166.1$278.8 million, respectively.The amount of accrued dividendsdividend equivalents payable for regular quarterly cash dividends on unvested restricted stock unitsRSUs with dividend equivalent rights as of DecemberMarch 31, 20172019 and June 30, 20172018 was $4.8$6.5 million and $4.8$6.7 million, respectively. These amounts will be paid upon vesting of the underlying restricted stock units.RSUs.
Special cash dividend
On November 19, 2014, the Company’sour Board of Directors declared a special cash dividend of $16.50 per share on our outstanding common stock, which was paid on December 9, 2014 to the stockholders of record as of the close of business on December 1, 2014.stock. The declaration and payment of the special cash dividend was part of the Company’sour leveraged recapitalization transaction under which the special cash dividend was financed through a combination of existing cash and proceeds from the debt financing disclosed in Note 7,8 “Debt” that was completed during the three months ended December 31, 2014. As of the declaration date, theThe total amount of the special cash dividend accrued by us at the Companydeclaration date was approximately $2.76 billion, substantially all of which was paid out during the three months ended December 31, 2014, except for the aggregate special cash dividend of $43.0 million that was accrued for the unvested restricted stock units. As of December 31, 2017RSUs and June 30, 2017, the Company had a total of $2.8 million and $9.0 million, respectively, of accrued dividends payable for the special cash dividend with respect to outstanding unvested restricted stock units, which will be paid when such underlying unvested restricted stock unitsRSUs vest. During the threesecond quarter of fiscal 2019, all of the special cash dividends accrued with respect to outstanding RSUs were vested and paid in full. During the nine months ended DecemberMarch 31, 20172019 and 2016,2018, the total special cash dividends paid with respect to vested restricted stock unitsRSUs were immaterial. During the six months ended December 31, 2017 and 2016, the total special cash dividends paid with respect to vested restricted stock units were $6.2$2.9 million and $7.7$6.3 million, respectively. Other thanFor details of the special cash dividend, declared duringrefer to Note 8 “Equity and Long-Term Incentive Compensation Plans,” of the three monthsNotes to the Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2014,June 30, 2018.
Non-controlling Interest
We have consolidated the Company historically has not declared any special cash dividend.results of Orbotech LT Solar, LLC (“OLTS”) and Orbograph Ltd. (“Orbograph”), in which we own approximately 84% and 94% of the outstanding equity interest, respectively. OLTS is engaged in the research, development and marketing of products for the deposition of thin film coating of various materials on crystalline silicon photovoltaic wafers for solar energy panels through plasma-enhanced chemical vapor deposition (“PECVD”). Orbograph is engaged in the development and marketing of character recognition solutions to banks, financial and other payment processing institutions and healthcare providers.
Additionally, we have consolidated the results of PixCell, an Israeli company developing diagnostic equipment for point-of-care hematology applications of which we own approximately 52% of the outstanding equity interest and are entitled to appoint the majority of this company’s directors.
NOTE 910 – STOCK REPURCHASE PROGRAM
The Company’sOur Board of Directors has authorized a program for the Companywhich permits us to repurchase sharesup to $2.00 billion of our common stock, reflecting an increase from $1.00 billion upon the close of the Company’s common stock.Orbotech Acquisition. For additional details, refer to Note 1, “Basis of Presentation”. The intent of this program is to offset the dilution from KLA-Tencor’sour equity incentive plans, and employee stock purchase plan, the issuance of shares in the Orbotech Acquisition, as well as to return excess cash to the Company’sour stockholders. Subject to market conditions, applicable legal requirements and other factors, the repurchases were made in the open market in compliance with applicable securities laws, including the Securities Exchange Act of 1934 and the rules promulgated thereunder, such as Rule 10b-18 and Rule 10b5-1. This stock repurchase program has no expiration date and may be suspended at any time. As of DecemberMarch 31, 2017,2019, an aggregate of approximately 4.9 million shares were$1.21 billion was available for repurchase under the Company’sour stock repurchase program.
Share repurchases for the indicated periods (based on the trade date of the applicable repurchase) were as follows:
Three months ended
December 31,
 Six months ended
December 31,
Three months ended
March 31,
 Nine months ended
March 31,
(In thousands)2017 2016 2017 20162019 2018 2019 2018
Number of shares of common stock repurchased388
 
 822
 
1,770
 796
 7,107
 1,618
Total cost of repurchases$40,868
 $
 $81,643
 $
$206,017
 $83,435
 $756,204
 $165,078

As of DecemberMarch 31, 2017, the Company2019, we had repurchased 12 thousand0.1 million shares for $1.3$6.0 million, which repurchases had not settled prior to DecemberMarch 31, 2017.2019. The amount was recorded as a component of other current liabilities for the period presented.

NOTE 1011 – NET INCOME (LOSS) PER SHARE
Basic net income (loss) per share is calculated by dividing net income (loss) available to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per share is calculated by using the weighted-average number of common shares outstanding during the period, increased to include the number of additional shares of common stock that would have been outstanding if the shares of common stock underlying the Company’sour outstanding dilutive restricted stock units and stock options had been issued. The dilutive effect of outstanding restricted stock units and options is reflected in diluted net income (loss) per share by application of the treasury stock method. The dilutive securities are excluded from the computation of diluted net loss per share when a net loss is recorded for the period as their effect would be anti-dilutive.
The following table sets forth the computation of basic and diluted net income (loss) per share:
share attributable to KLA-Tencor
(In thousands, except per share amounts)Three months ended
December 31,
 Six months ended
December 31,
2017 2016 2017 2016
Numerator:       
Net income (loss)$(134,319) $238,251
 $146,617
 $416,352
Denominator:       
Weighted-average shares-basic, excluding unvested restricted stock units156,587
 156,335
 156,707
 156,232
Effect of dilutive restricted stock units and options(1)

 788
 981
 839
Weighted-average shares-diluted156,587
 157,123
 157,688
 157,071
Basic net income (loss) per share$(0.86) $1.52
 $0.94
 $2.66
Diluted net income (loss) per share$(0.86) $1.52
 $0.93
 $2.65
Anti-dilutive securities excluded from the computation of diluted net income per share
 2
 
 56
__________________
(1) The Company has not had any outstanding stock options since August 2016.
(In thousands, except per share amounts)Three months ended
March 31,
 Nine months ended
March 31,
2019 2018 2019 2018
Numerator:       
Net income attributable to KLA-Tencor$192,728
 $306,881
 $957,772
 $453,498
Denominator:       
Weighted-average shares-basic, excluding unvested restricted stock units156,349
 156,221
 154,561
 156,547
Effect of dilutive restricted stock units and options833
 980
 749
 992
Weighted-average shares-diluted157,182
 157,201
 155,310
 157,539
Basic net income per share attributable to KLA-Tencor$1.23
 $1.96
 $6.20
 $2.90
Diluted net income per share attributable to KLA-Tencor$1.23
 $1.95
 $6.17
 $2.88
Anti-dilutive securities excluded from the computation of diluted net income per share100
 
 313
 2
NOTE 1112 – INCOME TAXES
The following table provides details of income taxes:

Three months ended
December 31,
 Six months ended
December 31,
Three months ended
March 31,
 Nine months ended
March 31,
(Dollar amounts in thousands)2017 2016 2017 20162019 2018 2019 2018
Income before income taxes$347,307
 $306,845
 $683,459
 $529,065
$221,390
 $365,983
 $1,064,921
 $1,049,442
Provision for income taxes$481,626
 $68,594
 $536,842
 $112,713
$28,745
 $59,102
 $107,232
 $595,944
Effective tax rate138.7% 22.4% 78.5% 21.3%13.0% 16.1% 10.1% 56.8%

The Company’sOur effective tax rate during the three and six months ended December 31, 2017 was impacted by the Tax Cuts and Jobs Act (“the Act”), which was enacted into law on December 22, 2017.  Income tax effects resulting from changes in tax laws are accounted for by the Company in accordance with the authoritative guidance, which requires that these tax effects be recognized in the period in which the law is enacted and the effects are recorded as a component of provision for income taxes from continuing operations. As a result, the Company made an additional provision for income tax resulting from the enactment of the Act during the three and six months ended December 31, 2017.

The Act includes significant changes to the U.S. corporate income tax system which reduceslower than the U.S. federal corporatestatutory rate primarily due to the proportion of earnings generated in jurisdictions with tax rate from 35.0% to 21.0% as of January 1, 2018; shifts to a modified territorial tax regime which requires companies to pay a transition tax on earnings of certain foreign subsidiaries that were previously tax deferred; and creates new taxes on certain foreign-sourced earnings. The decrease inrates lower than the U.S. federal corporate tax rate from 35.0% to 21.0% results in a blended statutory tax rate of 28.1% for the fiscal year ending June 30, 2018. The new taxes for certain foreign-sourced earnings under the Act are effective for the Company after the fiscal year ending June 30, 2018.rate.

Provision for income taxes increased by $413.0 million and $424.1 million duringDuring the three and six months ended DecemberMarch 31, 2017, respectively, primarily due to: (i) a transition tax2019, we completed the acquisition of $340.9 million on the Company’s total post-1986 earnings and profits (“E&P”) which, prior to the enactment of the Act, was previously deferred from U.S. income taxes; and (ii) a $101.1 million increase in income tax expense asOrbotech Ltd. As a result of the re-measurementOrbotech acquisition, we recorded $819.8 million of the Company’snet deferred tax liabilities primarily on the excess of book basis over the tax basis of acquired intangible assets and liabilities based onundistributed earnings in certain foreign subsidiaries. Adjustments to deferred taxes may be required when the Act’s new corporatepurchase price allocation is finalized within the measurement period.
The following table summarizes the changes to our gross unrecognized tax rate of 21.0%. The increase in provision for income taxes during the three and six months ended December 31, 2017 was partially offset by a decrease of $25.0 million relating to the reduction of the U.S. federal corporate tax rate from 35.0% to 28.1% for the fiscal year ending June 30, 2018. The amounts resulting from the transition tax are payable over a period of up to eight years.
As of December 31, 2017, the Company had not fully completed its accounting for the tax effects of the enactment of the Act. The Company’s provision for income taxesbenefits for the three and six months ended DecemberMarch 31, 2017 is based in part on a reasonable estimate of the effects on its transition tax and existing deferred tax balances. For the amounts which the Company was able to reasonably estimate, the Company recognized a provisional tax amount of $442.0 million, which is included as a component of provision for income taxes from continuing operations. The components of the provisional tax amounts are as follows:2019:
The Company recorded a provisional tax amount of $340.9 million for the transition tax liability. The Company has not yet completed the calculation of the total post-1986 foreign E&P and the income tax pools for all foreign subsidiaries. Further, the transition tax is based in part on the amount of those earnings held in cash and other specified assets. This amount may change when the Company finalizes the calculation of post-1986 foreign E&P previously deferred from U.S. federal taxation and finalizes the amounts held in cash or other specified assets. In addition, further interpretations from U.S. federal and state governments and regulatory organizations may change the provisional tax liability or the accounting treatment of the provisional tax liability.
The Company recorded a provisional tax amount of $101.1 million to re-measure certain deferred tax assets and liabilities as a result of the enactment of the Act. The Company is still analyzing certain aspects of the Act and refining the estimate of the expected reversal of its deferred tax balances. This can potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts.
(Dollar amounts in thousands)Unrecognized Tax Benefits
Balance on December 31, 2018$69,779
Addition related to acquisitions61,483
Addition for tax positions related to current year10,935
Addition for tax positions related to prior years1,273
Reduction for tax positions related to prior years(10,144)
Balance on March 31, 2019133,326
The Act also includes provisions for Global Intangible Low-Taxed Income (“GILTI”) wherein taxes on foreign income are imposed in excess of a deemed return on tangible assets of foreign corporations. This income will effectively be taxed at a 10.5% tax rate in general. As a result, the Company’s deferred tax assets and liabilities are being evaluated if the deferred tax assets and liabilities should be recognized for the basis differences expected to reverse as a result of GILTI provisions that are effective for the Company after the fiscal year ending June 30, 2018, or should the tax on GILTI provisions be recognized in the period the Act was signed into law. Because of the complexity of the new provisions, the Company is continuing to evaluate on how the provisions will be accounted for under the U.S. generally accepted accounting principles wherein companies are allowed to make an accounting policy election of either (i) account for GILTI as a component of tax expense in the period in which the Company is subject to the rules (the “period cost method”), or (ii) account for GILTI in the Company’s measurement of deferred taxes (the “deferred method”). Currently, the Company has not elected a method and will only do so after its completion of the analysis of the GILTI provisions and its election method will depend, in part, on analyzing its global income to determine whether the Company expects to have future U.S. inclusions in its taxable income related to GILTI and, if so, the impact that is expected.
In the normal course of business, the Company iswe are subject to examination by tax authorities throughout the world. The Company is subject toWe are under United States federal income tax examination for all years beginning from the fiscal year ended June 30, 2014. The Company is2016. We are subject to state income tax examinations for all years beginning from the fiscal year ended June 30, 2013. The Company is2014. We are also subject to examinations in other major foreign jurisdictions, including Singapore, for all years beginningjurisdictions.
In May 2017, Orbotech received an assessment from the Israel Tax Authority (“ITA”) with respect to its fiscal years 2012 through 2014 (the “Assessment”, and the “Audit Period”, respectively), for an aggregate amount of tax against it, after offsetting all NOLs for tax purposes available through the end of 2014, of approximately NIS 218.0 million (approximately $65.0 million as of March 31, 2019), which amount includes related interest and linkage differentials to the Israeli consumer price index (as of date of the Assessment). We believe our recorded unrecognized tax benefits are sufficient to cover the resolution of the Assessment.
On August 31, 2018, Orbotech filed an objection in respect of the tax assessment (the “Objection”). Orbotech is now in the process of the second stage, in which the claims raised by it in the Objection are examined by different personnel at the ITA. In addition, the ITA can examine additional items and may assess additional amounts in the second stage. The second stage must be completed within one year ended Juneof when the Objection was filed.
In connection with the above, there is an ongoing criminal investigation in Israel against Orbotech, which became our wholly owned subsidiary as of the acquisition date, certain of its employees and its tax consultant. On April 11, 2018, Orbotech received a “suspect notification letter” (dated March 28, 2018) from the Tel Aviv District Attorney’s Office (Fiscal and Financial). In the letter, it was noted that the investigation file was transferred from the Assessment Investigation Officer to the District Attorney’s Office. The letter further states that the District Attorney’s Office has not yet made a decision regarding submission of an indictment against Orbotech; and that if after studying the case, a decision is made to consider prosecuting Orbotech, Orbotech will receive an additional letter, and within 30 2013.days, Orbotech may present its arguments to the District Attorney’s Office as to why it should not be indicted. To date, neither we nor Orbotech has received such an additional letter or any other correspondence or contact from the District Attorney’s Office. We will continue to monitor the progress of the District Attorney’s Office investigation, however, cannot anticipate when the review of the case will be completed and what will be the results thereof. We intend to cooperate with the District Attorney’s Office to enable them to conclude their investigation.
It is possible that certain examinations may be concluded in the next twelve months. The Company believesWe believe that itwe may recognize up to $12.6$41.5 million of itsour existing unrecognized tax benefits within the next twelve months as a result of the lapse of statutes of limitations and the resolution of examinations with various tax authorities.

NOTE 1213 – LITIGATION AND OTHER LEGAL MATTERS
The Company isWe are named from time to time as a party to lawsuits and other types of legal proceedings and claims in the normal course of itsour business. Actions filed against the Companyus include commercial, intellectual property, customer, and labor and employment related claims, including complaints of alleged wrongful termination and potential class action lawsuits regarding alleged violations of federal and state wage and hour and other laws. In general, legal proceedings and claims, regardless of their merit, and associated internal investigations (especially those relating to intellectual property or confidential information disputes) are often expensive to prosecute, defend or conduct and may divert management’s attention and other company resources. Moreover, the results of legal proceedings are difficult to predict, and the costs incurred in litigation can be substantial, regardless of outcome. The Company believesWe believe the amounts provided in itsour condensed consolidated financial statements are adequate in light of the probable and estimated liabilities. However, because such matters are subject to many uncertainties, the ultimate outcomes are not predictable, and there can be no assurances that the actual amounts required to satisfy alleged liabilities from the matters described above will not exceed the amounts reflected in the Company’sour condensed consolidated financial statements or will not have a material adverse effect on itsour results of operations, financial condition or cash flows.
NOTE 1314 – COMMITMENTS AND CONTINGENCIES
Factoring. KLA-Tencor hasWe have agreements (referred to as “factoring agreements”) with financial institutions to sell certain of itsour trade receivables and promissory notes from customers without recourse. The Company doesWe do not believe it iswe are at risk for any material losses as a result of these agreements. In addition, the Companywe periodically sellssell certain letters of credit (“LCs”), without recourse, received from customers in payment for goods and services.

The following table shows total receivables sold under factoring agreements and proceeds from sales of LCs for the indicated periods:
Three months ended
December 31,
 Six months ended
December 31,
Three months ended
March 31,
 Nine months ended
March 31,
(In thousands)2017 2016 2017 20162019 2018 2019 2018
Receivables sold under factoring agreements$47,232
 $28,242
 $79,133
 $84,975
$48,243
 $69,390
 $149,597
 $148,523
Proceeds from sales of LCs$
 $9,740
 $5,571
 $13,148
$40,303
 $
 $59,534
 $5,571
Factoring and LC fees for the sale of certain trade receivables were recorded in other expense (income), net and were not material for the periods presented.
Facilities.Leases. KLA-Tencor leasesWe lease certain of itsour facilities, autos and equipments under arrangements that are accounted for as operating leases. RentFacilities rent expense was $2.5$3.1 million and $2.4$2.7 million for the three months ended DecemberMarch 31, 20172019 and 2016,2018, respectively and was $5.0$7.8 million and $4.8$7.7 million for the sixnine months ended DecemberMarch 31, 20172019 and 2016, respectively.2018, respectively
The following is a schedule of expected operating lease payments:
Fiscal year ending June 30,
Amount
(In thousands)
Amount
(In thousands)
2018 (remaining 6 months)$10,063
20197,478
2019 (remaining 3 months)$7,360
20206,031
26,427
20214,561
18,394
20222,534
12,845
2023 and thereafter4,551
20237,668
2024 and thereafter14,574
Total minimum lease payments$35,218
$87,268
Purchase Commitments. KLA-Tencor maintainsWe maintain commitments to purchase inventory from itsour suppliers as well as goods, services, and servicesother assets in the ordinary course of business. The Company’sOur liability under these purchase commitments is generally restricted to a forecasted time-horizon as mutually agreed upon between the parties. This forecasted time-horizon can vary among different suppliers. The Company’sOur estimate of itsour significant purchase commitments for primarily material, services, supplies and asset purchases is approximately $481.0$603.3 million as of DecemberMarch 31, 20172019, which are primarily due within the next 12 months.
Actual expenditures will vary based upon the volume of the transactions and length of contractual service provided. In addition, the amounts paid under these arrangements may be less in the event that the arrangements are renegotiated or canceled. Certain agreements provide for potential cancellation penalties.

Cash Long-Term Incentive Plan. As of DecemberMarch 31, 20172019, the Company hadwe have committed $120.2$130.1 million for future payment obligations under itsour Cash LTI Plan. The calculation of compensation expense related to the Cash LTI Plan includes estimated forfeiture rate assumptions. Cash LTI awards issued to employees under the Cash LTI Plan vest in three or four equal installments, with one-third or one-fourth of the aggregate amount of the Cash LTI award vesting on each yearly anniversary of the grant date over a three or four-yearfour-year period. In order to receive payments under a Cash LTI award, participants must remain employed by the Companyus as of the applicable award vesting date.
Warranties, Guarantees and Contingencies. KLA-Tencor provides standard warranty coverage on its systems for 40 hours per week for 12 months, providing labor and parts necessary to repair andWe maintain the systems during the warranty period. The Company accounts for the estimated warranty cost as a charge to costs of revenues when revenue is recognized. The estimated warranty cost is based on historical product performance and field expenses. Utilizing actual service records, the Company calculates the average service hours and parts expense per system and applies the actual labor and overhead rates to determine the estimated warranty charge. The Company updates these estimated charges on a regular basis. The actual product performance and/or field expense profiles may differ, and in those cases the Company adjusts its warranty accruals accordingly.
The following table provides the changes in the product warranty accrual for the indicated periods:
 Three months ended
December 31,
 Six months ended
December 31,
(In thousands)2017 2016 2017 2016
Beginning balance$46,439
 $36,967
 $45,458
 $34,773
Accruals for warranties issued during the period13,951
 13,191
 27,047
 24,093
Changes in liability related to pre-existing warranties(5,254) (1,131) (7,785) (1,576)
Settlements made during the period(10,123) (8,354) (19,707) (16,617)
Ending balance$45,013
 $40,673
 $45,013
 $40,673
The Company maintains guarantee arrangements available through various financial institutions for up to $21.8$45.1 million, of which $16.0$38.7 million had been issued as of DecemberMarch 31, 2017,2019, primarily to fund guarantees to customs authorities for value-added tax (“VAT”) and other operating requirements of the Company’sour subsidiaries in Europe, Israel and Asia.
KLA-Tencor
Indemnification Obligations. Subject to certain limitations, we are obligated to indemnify our current and former directors, officers and employees with respect to certain litigation matters and investigations that arise in connection with their service to us. These obligations arise under the terms of our certificate of incorporation, our bylaws, applicable contracts, and Delaware and California law. The obligation to indemnify generally means that we are required to pay or reimburse the individuals’ reasonable legal expenses and possibly damages and other liabilities incurred in connection with these matters. For example, we have paid or reimbursed legal expenses incurred in connection with the investigation of our historical stock option practices and the related litigation and government inquiries by several of our current and former directors, officers and employees. Although the maximum potential amount of future payments we could be required to make under the indemnification obligations generally described in this paragraph is theoretically unlimited, we believe the fair value of this liability, to the extent estimable, is appropriately considered within the reserve we have established for currently pending legal proceedings.
We are a party to a variety of agreements pursuant to which itwe may be obligated to indemnify the other party with respect to certain matters. Typically, these obligations arise in connection with contracts and license agreements or the sale of assets, under which the Companywe customarily agrees to hold the other party harmless against losses arising from, or provides customers with other remedies to protect against, bodily injury or damage to personal property caused by the Company’sour products, non-compliance with the Company’sour product performance specifications, infringement by the Company’sour products of third-party intellectual property rights and a breach of warranties, representations and covenants related to matters such as title to assets sold, validity of certain intellectual property rights, non-infringement of third-party rights, and certain income tax-related matters. In each of these circumstances, payment by the Companyus is typically subject to the other party making a claim to and cooperating with the Companyus pursuant to the procedures specified in the particular contract.
This usually allows the Companyus to challenge the other party’s claims or, in case of breach of intellectual property representations or covenants, to control the defense or settlement of any third-party claims brought against the other party. Further, the Company’sour obligations under these agreements may be limited in terms of amounts, activity (typically at the Company’sour option to replace or correct the products or terminate the agreement with a refund to the other party), and duration. In some instances, the Companywe may have recourse against third parties and/or insurance covering certain payments made by the Company.
Subject to certain limitations, the Company is obligated to indemnify its current and former directors, officers and employees with respect to certain litigation matters and investigations that arise in connection with their service to the Company. These obligations arise under the terms of the Company’s certificate of incorporation, its bylaws, applicable contracts, and Delaware and California law. The obligation to indemnify generally means that the Company is required to pay or reimburse the individuals’ reasonable legal expenses and possibly damages and other liabilities incurred in connection with these matters.

us.
In addition, the Companywe may in limited circumstances enter into agreements that contain customer-specific commitments on pricing, tool reliability, spare parts stocking levels, response time and other commitments. Furthermore, the Companywe may give these customers limited audit or inspection rights to enable them to confirm that the Company iswe are complying with these commitments. If a customer elects to exercise its audit or inspection rights, the Companywe may be required to expend significant resources to support the audit or inspection, as well as to defend or settle any dispute with a customer that could potentially arise out of such audit or inspection. To date, the Company haswe have made no significant accruals in itsour condensed consolidated financial statements for this contingency. While the Company haswe have not in the past incurred significant expenses for resolving disputes regarding these types of commitments, the Companywe cannot make any assurance that it will not incur any such liabilities in the future.
It is not possible to predict the maximum potential amount of future payments under these or similar agreements due to the conditional nature of the Company’sour obligations and the unique facts and circumstances involved in each particular agreement. Historically, payments made by the Companyus under these agreements have not had a material effect on itsour business, financial condition, results of operations or cash flows.
NOTE 1415 – DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES
The authoritative guidance requires companies to recognize all derivative instruments and hedging activities, including foreign currency exchange contracts and interest rate lock agreements, (collectively “derivatives”) as either assets or liabilities at fair value on the balance sheet. Changes in the fair value of derivatives that do not qualify for hedge treatment, as well as the ineffective portion of any hedges, are recognized in other expense (income), net in the condensed consolidated statements of operations.balance sheets. In accordance with the accounting guidance, the Company designateswe designate foreign currency forward exchange contracts and option contractsinterest rate lock agreements as cash flow hedges of certain forecasted foreign currency denominated sales, purchase and purchase transactions.spending transactions, and the benchmark interest rate of the corresponding debt financing, respectively.
KLA-Tencor’sOur foreign subsidiaries operate and sell KLA-Tencor’sour products in various global markets. As a result, KLA-Tencor iswe are exposed to risks relating to changes in foreign currency exchange rates. KLA-Tencor utilizesWe utilize foreign currency forward exchange contracts and option contracts to hedge against future movements in foreign exchange rates that affect certain existing and forecasted foreign currency denominated sales and purchase transactions, such as the Japanese yen, the euro, the New Taiwan dollarpound sterling and the Israeli new shekel. The CompanyWe routinely hedges itshedge our exposures to certain foreign currencies with various financial institutions in an effort to minimize the impact of certain currency exchange rate fluctuations. These currency forward exchange contracts and options, designated as cash flow hedges, generally have maturities of less than 18 months. Cash flow hedges are evaluated for effectiveness monthly, based on changes in total fair value of the derivatives. If a financial counterparty to any of the Company’sour hedging arrangements experiences financial difficulties or is otherwise unable to honor the terms of the foreign currency hedge, the Companywe may experience material losses.
For derivative instruments that are designated and qualify as cash flow hedges, the effective portion of the gains or losses on the derivative is reported as a component of accumulated other comprehensive income (loss) (“OCI”) and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. Changes in the fair value of currency forward exchange and option contracts due to changes in time value are excluded from the assessment of effectiveness. Gains and losses on the derivative representing either hedge ineffectiveness or hedge components excluded from the assessment of effectiveness are recognized in current earnings.
For derivative instruments that are not designated as accounting hedges, gains and losses are recognized in other expense (income), net. The Company uses foreign currency forward contracts to hedge certain foreign currency denominated assets or liabilities. The gains and losses on these derivatives are largely offset by the changes in the fair value of the assets or liabilities being hedged.
In October 2014, in anticipation of the issuance of the Senior Notes, the Companywe entered into a series of forward contracts (“Rate Lock Agreements”) to lock the benchmark rate on a portion of the Senior Notes. The Rate Lock Agreements were matured and terminated in the second quarter of the fiscal year ended June 30, 2015 and we recorded the fair value of $7.5 million as a gain within accumulated other comprehensive income (loss) (“OCI”) as of December 31, 2014. As of March 31, 2019, the unamortized portion of the fair value of the forward contracts for the Rate Lock Agreements was $4.2 million. For more details, refer to Note 16, “Derivative Instruments and Hedging Activities” of the Notes to the Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2018.
During the three months ended June 30, 2018, we entered into a series of forward contracts (the “2018 Rate Lock Agreements”) to lock the benchmark interest rate prior to expected debt issuances. The objective of the 2018 Rate Lock Agreements was to hedge the risk associated with the variability in interest rates due to the changes in the benchmark rate leading up to the closing of the intended financing on the notional amount being hedged. The 2018 Rate Lock AgreementsAgreement had a notional amount of $1.00 billion$500.0 million in aggregate, which matured and terminated in the secondthird quarter of the fiscal year endedending June 30, 2015. The Rate Lock Agreements were terminated on the date of pricing of the $1.25 billion of 4.650% Senior Notes due in 20242019 and the Companywe recorded the fair value of $7.5$13.6 million as a gainloss within accumulated other comprehensive income (loss) as of December 31, 2014. The Company recognized $0.2 million for each of the three months ended December 31, 2017 and 2016 and $0.4 million for each of the six months ended December 31, 2017 and 2016 for the amortization of the gain recognized in accumulated other comprehensive income (loss), which amount reduced the interest expense.OCI. As of DecemberMarch 31, 2017,2019, the unamortized portion of the fair value of the 2018 Rate Lock Agreements was $13.5 million.
For derivatives that are designated and qualify as cash flow hedges, the effective portion of the gains or losses is reported in OCI and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. Prior to adopting the new accounting guidance for hedge accounting, time value was excluded from the assessment of effectiveness for derivatives designated as cash flow hedges. Time value was amortized on a mark-to-market basis and recognized in earnings over the life of the derivative contract. For derivative contracts executed after adopting the new accounting guidance, the election to include time value for the assessment of effectiveness is made on all forward contracts fordesignated as cash flow hedges. The change in fair value of the rate lock agreements was $5.2 million.derivative are recorded in OCI until the hedged item is recognized in earnings. The assessment of effectiveness of options contracts designated as cash flow hedges continue to exclude time value after adopting the new accounting guidance. The initial value of the component excluded from the assessment of effectiveness are recognized in earnings over the life of the derivative contract. Any difference between change in the fair value of the excluded components and the amounts recognized in earnings are recorded in OCI.

For derivatives that are not designated as cash flow hedges, gains and losses are recognized in other expense (income), net. We use foreign currency forward contracts to hedge certain foreign currency denominated assets or liabilities. The gains and losses on these derivative instruments are largely offset by the changes in the fair value of the assets or liabilities being hedged.
Derivatives in Cash Flow Hedging Relationships: Foreign Exchange and Interest Rate Contracts
The locations and amounts of designated and non-designated derivative instruments’ gains and losses reported(losses) on derivatives in the condensed consolidated financial statementscash flow hedging relationships recognized in OCI for the indicated periods were as follows:
  Three months ended
December 31,
 Six months ended
December 31,
(In thousands)Location in Financial Statements2017 2016 2017 2016
Derivatives Designated as Hedging Instruments        
Gains (losses) in accumulated OCI on derivatives (effective portion)Accumulated OCI$697
 $13,969
 $1,141
 $12,131
Gains (losses) reclassified from accumulated OCI into income (effective portion):Revenues$397
 $(1,425) $1,365
 $(2,906)
 Costs of revenues377
 (69) 1,338
 (156)
 Interest expense189
 189
 378
 378
 Net gains (losses) reclassified from accumulated OCI into income (effective portion)$963
 $(1,305) $3,081
 $(2,684)
Gains (losses) recognized in income on derivatives (ineffective portion and amount excluded from effectiveness testing)Other expense (income), net$(158) $(1,442) $(229) $(1,453)
Derivatives Not Designated as Hedging Instruments        
Gains (losses) recognized in incomeOther expense (income), net$3,237
 $5,295
 $3,676
 $5,131
 Three months ended Nine months ended
 March 31, March 31,
(In thousands)2019 2018 2019 2018
Derivatives Designated as Hedging Instruments:       
Rate lock agreements:       
Amounts included in the assessment of effectiveness$(3,252) $
 $(8,649) $
Foreign exchange contracts:       
Amounts included in the assessment of effectiveness$1,925
 $(581) $2,163
 $560
Amounts excluded from the assessment of effectiveness$(53) $
 $(82) $

The locations and amounts of designated and non-designated derivative’s gains and losses reported in the condensed consolidated statements of operations for the indicated periods were as follows:
 Three months ended March 31, Three months ended March 31,
 2019 2018
(In thousands)Revenue Cost of revenues Interest expense Other expense (income), net Revenue Cost of revenues Interest expense Other expense (income), net
Total amounts presented in the condensed consolidated statement of operations in which the effects of cash flow hedges are recorded$1,097,311
 $486,945
 $31,187
 $(9,282) $1,021,294
 $368,356
 $28,119
 $(7,640)
Gains (losses) on Derivatives Designated as Hedging Instruments:
Rate lock agreements:               
Amount of gains (losses) reclassified from accumulated OCI to earnings$
 $
 $150
 $
 $
 $
 $
 $
Amount of gains (losses) reclassified from accumulated OCI to earnings as a result that a forecasted transaction is no longer probable of occurring$
 $
 $
 $
 $
 $
 $
 $
Foreign exchange contracts:               
Amount of gains (losses) reclassified from accumulated OCI to earnings$655
 $(17) $
 $158
 $(65) $570
 $189
 $
Amount excluded from the assessment of effectiveness recognized in earnings based on an amortization approach$
 $
 $
 $
 $
 $
 $
 $
Amount excluded from the assessment of effectiveness$
 $
 $
 $(121) $
 $
 $
 $(374)
Gains (losses) on Derivatives Not Designated as Hedging Instruments:
Amount of gains (losses) recognized in earnings$
 $
 $
 $513
 $
 $
 $
 $(7,484)

 Nine months ended March 31, Nine months ended March 31,
 2019 2018
(In thousands)Revenue Cost of revenues Interest expense Other income (expense), net Revenue Cost of revenues Interest expense Other income (expense), net
Total amounts presented in the condensed consolidated statement of operations in which the effects of cash flow hedges are recorded$3,310,469
 $1,276,592
 $84,087
 $(28,535) $2,966,697
 $1,068,475
 $86,067
 $(19,847)
Gains (losses) on Derivatives Designated as Hedging Instruments:
Rate lock agreements:               
Amount of gains (losses) reclassified from accumulated OCI to earnings$
 $
 $527
 $
 $
 $
 $
 $
Amount of gains (losses) reclassified from accumulated OCI to earnings as a result that a forecasted transaction is no longer probable of occurring$
 $
 $
 $
 $
 $
 $
 $
Foreign exchange contracts:               
Amount of gains (losses) reclassified from accumulated OCI to earnings$3,343
 $(309) $
 $158
 $1,300
 $1,908
 $567
 $
Amount excluded from the assessment of effectiveness recognized in earnings based on an amortization approach$80
 $(8) $
 $
 $
 $
 $
 $
Amount excluded from the assessment of effectiveness$
 $
 $
 $(208) $
 $
 $
 $(603)
Gains (losses) on Derivatives Not Designated as Hedging Instruments:
Amount of gains (losses) recognized in earnings$
 $
 $
 $576
 $
 $
 $
 $(3,808)
The U.S. dollar equivalent of all outstanding notional amounts of foreign currency hedge contracts, with maximum remaining maturities of approximately 13ten months as of DecemberMarch 31, 20172019 and ten months June 30, 2017, respectively,2018, were as follows:
(In thousands)As of
December 31, 2017
 As of
June 30, 2017
As of
March 31, 2019
 As of
June 30, 2018
Cash flow hedge contracts   
Cash flow hedge contracts - foreign currency   
Purchase$25,923
 $19,305
$66,713
 $8,116
Sell$85,466
 $128,672
$164,955
 $115,032
Other foreign currency hedge contracts      
Purchase$144,442
 $165,563
$231,765
 $130,442
Sell$155,260
 $118,504
$289,502
 $154,442

The locations and fair value amounts of the Company’s derivative instrumentsour derivatives reported in itsour Condensed Consolidated Balance Sheets as of the dates indicated below were as follows: 
Asset Derivatives Liability DerivativesAsset Derivatives Liability Derivatives
Balance Sheet 
Location
 As of
December 31, 2017
 As of
June 30, 2017
 
Balance Sheet 
Location
 As of
December 31, 2017
 As of
June 30, 2017
Balance Sheet 
Location
 As of
March 31, 2019
 As of
June 30, 2018
 
Balance Sheet 
Location
 As of
March 31, 2019
 As of
June 30, 2018
(In thousands) Fair Value Fair Value Fair Value Fair Value
Derivatives designated as hedging instruments                
Rate lock contractsOther current assets $
 $219
 Other current liabilities $
 $5,158
Foreign exchange contractsOther current assets $1,271
 $2,198
 Other current liabilities $126
 $72
Other current assets 1,957
 3,259
 Other current liabilities 254
 312
Total derivatives designated as hedging instruments $1,271
 $2,198
 $126
 $72
 1,957
 3,478
 254
 5,470
Derivatives not designated as hedging instruments                
Foreign exchange contractsOther current assets $3,203
 $3,733
 Other current liabilities $289
 $1,203
Other current assets 2,289
 1,907
 Other current liabilities 1,562
 1,358
Total derivatives not designated as hedging instruments $3,203
 $3,733
 $289
 $1,203
 2,289
 1,907
 1,562
 1,358
Total derivatives $4,474
 $5,931
 $415
 $1,275
 $4,246
 $5,385
 $1,816
 $6,828
The following table provides the balances and changes in accumulated OCI, before taxes, related to derivative instrumentsderivatives for the indicated periods:periods were as follows:
Three months ended
December 31,
 Six months ended
December 31,
Three months ended
March 31,
 Nine months ended
March 31,
(In thousands)2017 2016 2017 20162019 2018 2019 2018
Beginning balance$6,452
 $751
 $8,126
 $1,210
$(5,615) $6,186
 $2,346
 $8,126
Amount reclassified to income(963) 1,305
 (3,081) 2,684
Amount reclassified to earnings(946) (694) (3,719) (3,775)
Net change in unrealized gains or losses697
 13,969
 1,141
 12,131
(1,379) (581) (6,567) 560
Ending balance$6,186
 $16,025
 $6,186
 $16,025
$(7,940) $4,911
 $(7,940) $4,911
Offsetting of Derivative Assets and Liabilities
KLA-Tencor presentsWe present derivatives at gross fair values in the Condensed Consolidated Balance Sheets. The Company hasWe have entered into arrangements with each of itsour counterparties, which reduce credit risk by permitting net settlement of transactions with the same counterparty under certain conditions. As of December 31, 2017 and June 30, 2017,The information related to the offsetting arrangements for the periods indicated was as follows (in thousands):
As of December 31, 2017     Gross Amounts of Derivatives Not Offset in the Condensed Consolidated Balance Sheets  
As of March 31, 2019     Gross Amounts of Derivatives Not Offset in the Condensed Consolidated Balance Sheets  
Description Gross Amounts of Derivatives Gross Amounts of Derivatives Offset in the Condensed Consolidated Balance Sheets Net Amount of Derivatives Presented in the Condensed Consolidated Balance Sheets Financial Instruments Cash Collateral Received Net Amount Gross Amounts of Derivatives Gross Amounts of Derivatives Offset in the Condensed Consolidated Balance Sheets Net Amount of Derivatives Presented in the Condensed Consolidated Balance Sheets Financial Instruments Cash Collateral Received Net Amount
Derivatives - Assets $4,474
 $
 $4,474
 $(415) $
 $4,059
 $4,246
 $
 $4,246
 $(1,209) $
 $3,037
Derivatives - Liabilities $(415) $
 $(415) $415
 $
 $
 $(1,816) $
 $(1,816) $1,209
 $
 $(607)
As of June 30, 2017     Gross Amounts of Derivatives Not Offset in the Condensed Consolidated Balance Sheets  
As of June 30, 2018     Gross Amounts of Derivatives Not Offset in the Condensed Consolidated Balance Sheets  
Description Gross Amounts of Derivatives Gross Amounts of Derivatives Offset in the Condensed Consolidated Balance Sheets Net Amount of Derivatives Presented in the Condensed Consolidated Balance Sheets Financial Instruments Cash Collateral Received Net Amount Gross Amounts of Derivatives Gross Amounts of Derivatives Offset in the Condensed Consolidated Balance Sheets Net Amount of Derivatives Presented in the Condensed Consolidated Balance Sheets Financial Instruments Cash Collateral Received Net Amount
Derivatives - Assets $5,931
 $
 $5,931
 $(1,275) $
 $4,656
 $5,385
 $
 $5,385
 $(1,888) $
 $3,497
Derivatives - Liabilities $(1,275) $
 $(1,275) $1,275
 $
 $
 $(6,828) $
 $(6,828) $1,888
 $
 $(4,940)

NOTE 1516 – RELATED PARTY TRANSACTIONS
During the three and sixnine months ended DecemberMarch 31, 20172019 and 2016, the Company2018, we purchased from, or sold to, several entities, where one or more of our executive officers of the Company or members of the Company’sour Board of Directors, or their immediate family members, were, during the periods presented, an executive officer or a board member of a subsidiary, including Citrix Systems, Inc., Integrated Device Technology, Inc., Keysight Technologies, Inc., MetLife Insurance K.K., NetApp, Inc., and Proofpoint, Inc. The following table provides the transactions with these parties for the indicated periods (for the portion of such period that they were considered related):
Three months ended
December 31,
 Six months ended
December 31,
Three months ended
March 31,
 Nine months ended
March 31,
(In thousands)2017 2016 2017 20162019 2018 2019 2018
Total revenues$455
 $8
 $457
 $8
$1,972
 $6
 $1,985
 $463
Total purchases(1)$542
 $226
 $1,246
 $583
$354
 $594
 $2,560
 $1,840
The Company’s__________________ 
(1)During the three months ended June 30, 2018, we acquired a product line from Keysight Technologies, Inc. (“Keysight”) and entered into a transition services agreement pursuant to which Keysight provides certain manufacturing services to us. For additional details refer to Note 6, “Business Combinations”. We recorded the manufacturing services fees under the transition services agreement with Keysight within cost of revenues, which was immaterial for the three and nine months ended March 31, 2019.
Our receivable balances from these parties were $0.5$1.9 million as of DecemberMarch 31, 20172019 and immaterial as offor June 30, 2017. The Company’s2018. Our payable balance from these parties was immaterial at DecemberMarch 31, 20172019 and June 30, 2017. Management believes that such transactions are at arm’s length and on similar terms as would have been obtained from unaffiliated third parties.2018.
NOTE 1617 – SEGMENT REPORTING AND GEOGRAPHIC INFORMATION
KLA-Tencor reportsWhile we operate our business in multiple operating segments, we have only one reportable segment in accordance with the provisions of the authoritative guidance for segment reporting.segment. Operating segments are defined as components of an enterprise about which separate financial information is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing performance. KLA-Tencor’s
Our chief operating decision maker, who is itsour Chief Executive Officer. The CompanyOfficer, is engaged primarily in designing, manufacturing,the process of completing an assessment of our reporting structure as of the filing date of this Quarterly Report on Form 10-Q. We are in the process of determining the related impacts to our determination of operating and marketing process control and yield management solutionsreportable segments. Accordingly, the disclosures for the semiconductorthree and related nanoelectronics industries.nine months ending March 31, 2019 reflects the current segment reporting disclosures of our operations with Orbotech presented as a separate component, where noted. We currently expect to complete our assessment of our segment reporting structure within the fourth quarter.
All operating segments have been aggregated due to their inter-dependencies, commonality of long-term economic characteristics, products and services, the production processes, class of customer and distribution processes. The Company’sOur service products are an extension of the system product portfolio and provide customers with spare parts and fab management services (including system preventive maintenance and optimization services) to improve yield, increase production uptime and throughput, and lower the cost of ownership. Since the Company operateswe operate in one reportable segment, all financial segment information required by the authoritative guidance can be found in the condensed consolidated financial statements.
The Company’sOur significant operations outside the United States include manufacturing facilities in China, Germany, Israel and Singapore and sales, marketing and service offices in Japan, the rest of the Asia Pacific region and Europe. For geographical revenue reporting, revenues are attributed to the geographic location in which the customer is located. Long-lived assets consist of land, property and equipment, net and are attributed to the geographic region in which they are located.

The following is a summary of revenues by geographic region, based on ship-to location, for the indicated periods (as a percentage of total revenues):periods:
Three months ended December 31, Six months ended December 31,Three months ended March 31, Nine months ended March 31,
(Dollar amounts in thousands)2017 2016 2017 20162019 2018 2019 2018
Revenues:                             ��
Taiwan$275,507
 25% $156,428
 15% $796,478
 24% $511,778
 17%
China206,164
 19% 143,761
 14% 816,176
 25% 378,560
 13%
Korea$270,184
 28% $96,846
 11% $544,862
 28% $231,935
 14%196,490
 18% 314,062
 31% 476,959
 14% 858,924
 29%
Taiwan216,791
 22% 336,058
 38% 355,350
 18% 609,750
 37%
North America156,824
 14% 113,477
 11% 409,066
 12% 391,769
 13%
Japan154,762
 16% 67,855
 8% 301,197
 15% 172,639
 11%146,069
 13% 199,066
 19% 461,930
 14% 500,263
 17%
North America149,042
 15% 153,162
 17% 278,292
 14% 240,428
 15%
Europe & Israel82,158
 8% 93,440
 11% 165,663
 9% 128,288
 8%
China66,460
 7% 73,152
 9% 234,799
 12% 158,841
 10%
Europe and Israel76,054
 7% 53,043
 6% 228,341
 7% 218,706
 7%
Rest of Asia36,425
 4% 56,372
 6% 65,240
 4% 85,677
 5%40,203
 4% 41,457
 4% 121,519
 4% 106,697
 4%
Total$975,822
 100% $876,885
 100% $1,945,403
 100% $1,627,558
 100%$1,097,311
 100% $1,021,294
 100% $3,310,469
 100% $2,966,697
 100%
The following is a summary of revenues by major products and for Orbotech in total for the indicated periods (as a percentage of total revenues):
Three months ended December 31, Six months ended December 31,Three months ended March 31, Nine months ended March 31,
(Dollar amounts in thousands)2017 2016 2017 20162019 2018 2019 2018
Revenues:                              
Wafer Inspection$400,584
 41% $428,875
 49% $790,004
 41% $784,736
 48%$334,070
 30% $486,662
 48% $1,312,261
 40% $1,276,666
 43%
Patterning274,868
 28% 223,796
 26% 569,218
 29% 396,409
 24%285,815
 26% 251,253
 25% 884,021
 27% 820,471
 28%
Global Service and Support(1)
273,805
 28% 217,249
 24% 534,303
 27% 425,235
 26%287,116
 26% 262,389
 26% 855,309
 26% 796,692
 27%
Orbotech161,344
 15% 
 % 161,344
 5% 
 %
Other26,565
 3% 6,965
 1% 51,878
 3% 21,178
 2%28,966
 3% 20,990
 1% 97,534
 2% 72,868
 2%
Total$975,822
 100% $876,885
 100% $1,945,403
 100% $1,627,558
 100%$1,097,311
 100% $1,021,294
 100% $3,310,469
 100% $2,966,697
 100%
__________________ 
(1) The Global Service and Support revenues includesinclude service revenues as presented in the condensed consolidated statementsCondensed Consolidated Statements of operationsOperations as well as certain product revenues, primarily revenues from the Company’sour K-T Pro business.
In the three months ended DecemberMarch 31, 2017,2019, one customer accounted for approximately 17%19% of total revenues. In the three months ended DecemberMarch 31, 2016,2018, two customers accounted for approximately 31%22% and 13%11% of total revenues. In the sixnine months ended DecemberMarch 31, 2017,2019, two customers accounted for approximately 15% and 11% of total revenues. In the nine months ended March 31, 2018, one customer accounted for approximately 22% of total revenues. In the six months ended December 31, 2016, two customers accounted for approximately 30%One and 11% of total revenues. Twothree customers on an individual basis accounted for greater than 10% of net accounts receivables as of DecemberMarch 31, 20172019 and June 30, 2017,2018, respectively.
Long-lived assets by geographic region as of the dates indicated below were as follows: 
(In thousands)As of
December 31, 2017
 As of
June 30, 2017
As of
March 31, 2019
 As of
June 30, 2018
Long-lived assets:      
United States$186,104
 $191,096
$222,444
 $187,352
Singapore41,924
 39,118
49,764
 47,009
Israel28,658
 30,182
65,113
 26,980
Europe13,335
 13,300
57,096
 12,924
Rest of Asia11,613
 10,279
17,435
 12,041
Total$281,634
 $283,975
$411,852
 $286,306
NOTE 18 – SUBSEQUENT EVENTS
On May 3, 2019, we announced that our Board of Directors had declared a quarterly cash dividend of $0.75 per share to be paid on June 4, 2019 to stockholders of record as of the close of business on May 15, 2019.


ITEM 2.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
This report contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. All statements other than statements of historical fact may be forward-looking statements. You can identify these and other forward-looking statements by the use of words such as “may,” “will,” “could,” “would,” “should,” “expects,” “plans,” “anticipates,” “relies,” “believes,” “estimates,” “predicts,” “intends,” “potential,” “continue,” “thinks,” “seeks,” or the negative of such terms, or other comparable terminology. Forward-looking statements also include the assumptions underlying or relating to any of the foregoing statements. Such forward-looking statements include, among others, forecasts of the future results of our operations, including profitability; orders for our products and capital equipment generally; sales of semiconductors; the investments by our customers in advanced technologies and new materials; the allocation of capital spending by our customers (and, in particular, the percentage of spending that our customers allocate to process control); growth of revenue in the semiconductor industry, the semiconductor capital equipment industry and our business; technological trends in the semiconductor industry; future developments or trends in the global capital and financial markets; our future product offerings and product features; the success and market acceptance of new products; timing of shipment of backlog; our future product shipments and product and service revenues; our future gross margins; our future research and development expenses and selling, general and administrative expenses; our ability to successfully maintain cost discipline; international sales and operations; our ability to maintain or improve our existing competitive position; success of our product offerings; creation and funding of programs for research and development; attraction and retention of employees; results of our investment in leading edge technologies; the effects of hedging transactions; the effect of the sale of trade receivables and promissory notes from customers; our future effective income tax rate; our recognition of tax benefits; future payments of dividends to our stockholders; the completion of any acquisitions of third parties, or the technology or assets thereof; benefits received from any acquisitions and development of acquired technologies; sufficiency of our existing cash balance, investments, cash generated from operations and the unfunded portion of our revolving line of credit under a Credit Agreement (the “Credit Agreement”) to meet our operating and working capital requirements, including debt service and payment thereof; future dividends, and stock repurchases; our compliance with the financial covenants under the Credit Agreement; the adoption of new accounting pronouncements;pronouncements including ASC 606; the tax liabilities resulting from the enactment of the Tax Cuts and Jobs Act; and our repayment of our outstanding indebtedness.
Our actual results may differ significantly from those projected in the forward-looking statements in this report. Factors that might cause or contribute to such differences include, but are not limited to, those discussed in Part II, Item 1A, “Risk Factors” in this report as well as in Item 1, “Business” and Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended June 30, 2017,2018, filed with the Securities and Exchange Commission on August 4, 2017.6, 2018. You should carefully review these risks and also review the risks described in other documents we file from time to time with the Securities and Exchange Commission. You are cautioned not to place undue reliance on these forward-looking statements, and we expressly assume no obligation and do not intend to update the forward-looking statements in this report after the date hereof.
EXECUTIVE SUMMARY
KLA-Tencor Corporation isWe are a leading supplier of process control and yield management solutions for the semiconductor and related nanoelectronics industries. Our broad portfolio of inspection and metrology products, and related service, software and other offerings primarily supports integrated circuit (“IC” or “chip”) manufacturers throughout the entire semiconductor fabrication process, from research and development to final volume production. We provide leading-edgeleading edge equipment, software and support that enable IC manufacturers to identify, resolve and manage significant advanced technology manufacturing process challenges and obtain higher finished product yields at lower overall cost. In addition to serving the semiconductor industry, we also provide a range of technology solutions to a number of other high technology industries, including advanced packaging, light emitting diode (“LED”(LED), power devices, compound semiconductor, and data storage industries, as well as general materials research.

Our products and services are used by the vast majority of bare wafer, IC, lithography reticle (“reticle” or “mask”) and hard disk drive manufacturers around the world. Our products, services and expertise are used by our customers to measure, detect, analyze and resolve critical product defects that arise in that environment in order to control nanometric level manufacturing processes.

Our revenues are driven largely by our customers’ spending on capital equipment and related maintenance services necessary to support key transitions in their underlying product technologies, or to increase their production volumes in response to market demand or expansion plans. Our semiconductor customers generally operate in one or more of the three major semiconductor markets - memory, foundry and logic. All three of these markets are characterized by rapid technological changes and sudden shifts in end-user demand, which influence the level and pattern of our customers’ spending on our products and services. Although capital spending in all three semiconductor markets has historically been very cyclical, the demand for more advanced and lower cost chips used in a growing number of consumer electronics, communications, data processing, and industrial and automotive products has resulted over the long term in a favorable demand environment for our process control and yield management solutions, particularly in the foundry and logic markets, which have higher levels of process control adoption than the memory market.
AsThrough the acquisition of Orbotech, Ltd. (“Orbotech”), we arehave expended our reach in the electronics value chain to include technologically advanced, yield-enhancing and process-enabling solutions to address various manufacturing stages of Printed Circuit Boards (“PCB”), Flat Panel Displays (“FPD”), Specialty Semiconductor Devices (“SD”) and other electronic components. The products include Automated Optical Inspection (“AOI”), Automated Optical Shaping (“AOS”), Direct Imaging (“DI”), additive printing, laser drilling, laser plotters, Computer aided manufacturing (“CAM”) and engineering solutions for PCB and additional adjacent electronics component manufacturing, as well as AOI, test, repair and process monitoring systems for FPD manufacturing and vacuum process tools for etch, Physical Vapor Deposition (“PVD”), Molecular Vapor Deposition (“MVD”) and Chemical Vapor Deposition (“CVD”) solutions for SD manufacturing.
In our newly acquired Orbotech business, consumer end markets have been experiencing a fundamental shift in technology complexity, driven primarily by the proliferation of high-end mobile devices and automotive devices, as well as by the demand for large area FPDs such as large-size LCD televisions and OLED displays. The shift towards 5G connectivity and the fast-paced growth of the Internet of Things (“IoT”) services is expected to continue to further accelerate this shift as more devices become connected and dependent upon other electronic devices.
As a supplier to the global semiconductor, semiconductor-related and semiconductor-relatedelectronics industries, our customer base continues to become more highly concentrated over time, thereby increasing the potential impact of a sudden change in capital spending by a major customer on our revenues and profitability. As our customer base becomes increasingly more concentrated, large orders from a relatively limited number of customers account for a substantial portion of our sales, which potentially exposes us to more volatility for revenues and earnings. In the global semiconductor and electronics related industries, China is emerging as a major region for manufacturing of logic and memory chips, adding to its role as the world’s largest consumer of ICs. Additionally, a significant portion of global FPD and PCB manufacturing has migrated to China. Government initiatives are propelling China to expand its domestic manufacturing capacity and attracting semiconductor manufacturers from Taiwan, Korea, Japan and the US. China is currently seen as an important long termlong-term growth region for the semiconductor and electronics capital equipment sector. We are also subject to the cyclical capital spending that has historically characterized the semiconductor, semiconductor-related and semiconductor-relatedelectronics industries. The timing, length, intensity and volatility of the capacity-oriented capital spending cycles of our customers are unpredictable.
The semiconductor industry hasand electronics industries have also been characterized by constant technological innovation. Currently, there are multiple drivers for growth in the industry with increased demand for chips providing computation power and connectivity for Artificial Intelligence (“AI”) applications and support for mobile devices at the leading edge of foundry and logic chip manufacturing. Qualification of early extreme ultraviolet (“EUV”) lithography processes and equipment is driving growth at leading logic/foundry and dynamic random-access memory (“DRAM”) manufacturers. Expansion of the Internet of Things (“IoT”)IoT together with increasing acceptance of advanced driver assistance systems (“ADAS”) in anticipation of the introduction of autonomous cars have begun to accelerate legacy-node technology conversions and capacity expansions. Intertwined in these areas, spurred by data storage and connectivity needs, is the growth in demand for memory chips. On the other hand, higher design costs for the most advanced ICs could economically constrain leading-edge manufacturing technology customers to focus their resources on only the large technologically advanced products and applications. We believe that, over the long term, our customers will continue to invest in advanced technologies and new materials to enable smaller design rules and higher density applications that fuel demand for process control equipment, although the growth for such equipment may be adversely impacted by higher design costs for advanced ICs, reuse of installed products, and delays in production ramps by our customers in response to higher costs and technical challenges at more advanced technology nodes.
Additionally, current trends in smart mobile devices, 5G connectivity, automotive electronics, smart vehicles, flexible displays, AR/VR and wearable devices, high-performance computing, large size televisions and the IoT are expected to drive the need for production, inspection, test and repair solutions that are able to address the cutting-edge technology embedded in these types of electronic products.


The demand for our products and our revenue levels are driven by our customers’ needs to solve the process challenges that they face as they adopt new technologies required to fabricate advanced ICs that are incorporated into sophisticated mobile devices. The timingOur customers continuously seek to increase yields and enhance the efficiency of their manufacturing processes, including by improving their manufacturing, inspection, testing and repair capabilities.
Our view of the current wafer fab equipment demand climate is aligned with consensus industry analyst expectations for ourthe calendar year 2019, which reflects a decline in capital equipment spending by memory customers. In contrast to the memory business, capital equipment spending by foundry and logic customers in ordering and taking delivery of process control and yield management equipment is also determined by our customers’ requirementsat the leading edge has begun to meet the next generation production ramp, schedules, and the timing for capacity expansionmomentum is expected to meet end customer demand. During the three months ended December 31, 2017, revenues for our process control equipment had a modest increase compared to the quarter ended September 30, 2017. Our earnings will depend not only on our revenue levels, but also on the amount of research and development spending required to meet our customers’ technology roadmaps.continue in calendar year 2019. We have maintained production volumesalready seen our mix of business begin to shift toward increased purchases by logic and foundry customers as a percentage of total sales, and we expect spending from these customers to continue to remain strong. Because of a more diversified semiconductor device-end demand, and disciplined capacity to meet anticipated customer requirements andplanning by wafer fab equipment customers, we believe the long-term growth dynamics for the industry remain at riskstrong. While manufacturers of incurring significant inventory-relatedPCBs, FPDs, SDs and other restructuring charges if business conditions deteriorate. Over the past year, our customers have taken delivery of higher volumes of process control equipment thanelectronic components create different products for diverse end-markets, they didshare similar production challenges in the previous year. However, any delay or push out by our customers in taking delivery of process control and yield management equipment may cause earnings volatility, due to increases in the risk of inventory related charges as well as timing of revenue recognition.

an increasingly competitive environment.
The following table sets forth some of our key quarterly unaudited financial information:information(1): 
(In thousands, except net income loss) per share)Three months ended
December 31,
2017
 September 30,
2017
 June 30,
2017
 March 31,
2017
 December 31,
2016
 September 30,
2016
Total revenues$975,822
 $969,581
 $938,647
 $913,809
 $876,885
 $750,673
Gross margin$628,488
 $616,132
 $590,717
 $570,535
 $558,378
 $472,837
Net income (loss)$(134,319) $280,936
 $256,162
 $253,562
 $238,251
 $178,101
Net income (loss) per share:           
Basic (1)
$(0.86) $1.79
 $1.64
 $1.62
 $1.52
 $1.14
Diluted (1)
$(0.86) $1.78
 $1.62
 $1.61
 $1.52
 $1.13
(In thousands, except net income (loss) per share)Three months ended
March 31,
2019
 December 31,
2018
 September 30,
2018
 June 30,
2018
 March 31,
2018
 December 31,
2017
 September 30,
2017
Total revenues$1,097,311
 $1,119,898
 $1,093,260
 $1,070,004
 $1,021,294
 $975,822
 $969,581
Gross margin$610,366
 $711,638
 $711,873
 $692,438
 $652,938
 $628,820
 $616,464
Net income (loss) attributable to KLA-Tencor(2)
$192,728
 $369,100
 $395,944
 $348,767
 $306,881
 $(134,319) $280,936
Diluted net income (loss) per share attributable to KLA-Tencor(3)
$1.23
 $2.42
 $2.54
 $2.22
 $1.95
 $(0.86) $1.78
__________________ 
(1)BasicOn July 1, 2018, we adopted ASC 606 using the modified retrospective transition approach. Results for reporting periods beginning after June 30, 2018 are presented under ASC 606, while prior period amounts are not adjusted and dilutedcontinue to be reported in accordance with the previous revenue guidance in ASC 605.
(2)Our net income (loss) decreased to a loss of $134.3 million during the three months ended December 31, 2017, primarily as a result of the income tax effects from the enacted tax reform legislation through the Tax Cuts and Jobs Act, which was signed into law on December 22, 2017.
(3)Diluted net income (loss) per share are computed independently for each of the quarters presented based on the weighted-average basic and fully diluted shares outstanding for each quarter. Therefore, the sum of quarterly basic and diluted net income (loss) per share information may not equal annual (or other multiple-quarter calculations of) basic and diluted net income (loss) per share.
Acquisition of Orbotech, Ltd.
On February 20, 2019, we completed the acquisition of Orbotech, Ltd. (“Orbotech”) for total consideration of approximately $3.26 billion. Orbotech’s core business enables electronic device manufacturers to inspect, test and measure printed circuit boards and flat panel displays to verify their quality; pattern electronic circuitry on substrate and perform three-dimensional shaping of metalized circuits on multiple surfaces; and utilize advanced vacuum deposition and etching process in semiconductor device and semiconductor manufacturing and to perform laser drilling of electronic substrates. For additional details on the financial statement impacts of the Orbotech acquisition, refer to Note 6 “Business Combinations” to the condensed consolidated financial statements.
In addition, our Board of Directors has authorized a share repurchase of up to $2.00 billion of our common stock, reflecting an increase from $1.00 billion upon the close of the Orbotech Acquisition. We raised approximately $1.20 billion in new long-term debt financing to partially refinance our existing debt, to repurchase shares and for general corporate purposes. For additional details, refer to Note 8, “Debt”, and Note 10, “Stock Repurchase Program” to the condensed consolidated financial statements.
CRITICAL ACCOUNTING ESTIMATES AND POLICIES
The preparation of our condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions in applying our accounting policies that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. Note 1 to the consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended June 30, 2017 describes the significant accounting policies and methods used in preparation of the condensed consolidated financial statements. We base these estimates and assumptions on historical experience and evaluate them on an ongoing basis to ensure that they remain reasonable under current conditions. Actual results could differ from those estimates. We discuss the development and selection of the critical accounting estimates with the Audit Committee of our Board of Directors on a quarterly basis, and the Audit Committee has reviewed our related disclosure in this Quarterly Report on Form 10-Q. The

We updated our accounting policies that reflect our more significant estimates, judgmentsfor Revenue Recognition, Business Combinations, Global Intangible Low-Taxed Income (“GILTI”), and assumptions and which we believe are the most critical to aid in fully understanding and evaluating our reported financial results include the following:
Revenue Recognition
Inventories
Warranty
Allowance for Doubtful Accounts
Equity and Cash-Based Long-Term Incentive Compensation Plans
Contingencies and Litigation
Goodwill and Intangible Assets
Income Taxes
Valuation of Marketable Securities
Other than the recording of provisional tax amounts for the transition tax payable and adoption of the accounting standard update on accounting for subsequent measurement of inventory (see “Recent Accounting Pronouncements” below), there wereDerivative Financial Instruments. There have been no significantother material changes in our critical accounting estimates and policies duringsince our Annual Report on Form 10-K for the six monthsfiscal year ended December 31, 2017. PleaseJune 30, 2018. Refer to Note 1 “Basis of Presentation” to the condensed consolidated financial statements for additional details. In addition, please refer to Management’s Discussion and Analysis of Financial Condition and Results of Operations contained in Part II, Item 7 of our Annual Report on Form 10-K for our fiscal year ended June 30, 20172018 for a more complete discussion of our critical accounting policies and estimates.
Revenue Recognition
We recognize revenue when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the selling price is fixed or determinable, and collectibility is reasonably assured. We derive revenue from three sources—sales of systems, spare parts and services. In general, we recognize revenue for systems when the system has been installed, is operating according to predetermined specifications and is accepted by the customer. When we have demonstrated a history of successful installation and acceptance, we recognize revenue upon delivery and customer acceptance.

Under certain circumstances, however, we recognize revenue prior to acceptance from the customer, as follows:
When the customer fab has previously accepted the same tool, with the same specifications, and when we can objectively demonstrate that the tool meets all of the required acceptance criteria.
When system sales to independent distributors have no installation requirement, contain no acceptance agreement, and 100% of the payment is due based upon shipment.
When the installation of the system is deemed perfunctory.
When the customer withholds acceptance due to issues unrelated to product performance, in which case revenue is recognized when the system is performing as intended and meets predetermined specifications.
In circumstances in which we recognize revenue prior to installation, the portion of revenue associated with installation is deferred based on estimated fair value, and that revenue is recognized upon completion of the installation.
In many instances, products are sold in stand-alone arrangements. Services are sold separately through renewals of annual maintenance contracts. We have multiple element revenue arrangements in cases where certain elements of a sales arrangement are not delivered and accepted in one reporting period. To determine the relative fair value of each element in a revenue arrangement, we allocate arrangement consideration based on the selling price hierarchy. For substantially all of the arrangements with multiple deliverables pertaining to products and services, we use vendor-specific objective evidence (“VSOE”) or third-party evidence (“TPE”) to allocate the selling price to each deliverable. We determine TPE based on historical prices charged for products and services when sold on a stand-alone basis. When we are unable to establish relative selling price using VSOE or TPE, we use estimated selling price (“ESP”) in our allocation of arrangement consideration. The objective of ESP is to determine the price at which we would transact a sale if the product or service were sold on a stand-alone basis. ESP could potentially be used for new or customized products. We regularly review relative selling prices and maintain internal controls over the establishment and updates of these estimates. In a multiple element revenue arrangement, we defer revenue recognition associated with the relative fair value of each undelivered element until that element is delivered to the customer. To be considered a separate element, the product or service in question must represent a separate unit of accounting, which means that such product or service must fulfill the following criteria: (a) the delivered item(s) has value to the customer on a stand-alone basis; and (b) if the arrangement includes a general right of return relative to the delivered item(s), delivery or performance of the undelivered item(s) is considered probable and substantially in our control. If the arrangement does not meet all the above criteria, the entire amount of the sales contract is deferred until all elements are accepted by the customer.
Trade-in rights are occasionally granted to customers to trade in tools in connection with subsequent purchases. We estimate the value of the trade-in right and reduce the revenue recognized on the initial sale. This amount is recognized at the earlier of the exercise of the trade-in right or the expiration of the trade-in right.
We enter into volume purchase agreements with some of our customers. We accrue the estimated credits earned by our customers for such incentives, and in situations when the credit levels vary depending upon sales volume, we update our accrual based on the amount that we estimate will be purchased pursuant to the volume purchase agreements. Accruals for customer credits are recorded as an offset to revenue or deferred revenue.
Spare parts revenue is recognized when the parts have been shipped, risk of loss has passed to the customer and collection of the resulting receivable is reasonably assured.
Service and maintenance contract revenue is recognized ratably over the term of the maintenance contract. Revenue from services performed in the absence of a maintenance contract, including consulting and training revenue, is recognized when the related services are performed and collectibility is reasonably assured.
We sell stand-alone software that is subject to software revenue recognition guidance. We periodically review selling prices to determine whether VSOE exists, and in situations where we are unable to establish VSOE for undelivered elements such as post-contract service, revenue is recognized ratably over the term of the service contract.
We also defer the fair value of non-standard warranty bundled with equipment sales as unearned revenue. Non-standard warranty includes services incremental to the standard 40-hour per week coverage for 12 months. Non-standard warranty is recognized ratably as revenue when the applicable warranty term period commences.
The deferred system profit balance equals the value of products that have been shipped and billed to customers which have not met our revenue recognition criteria, less applicable product and warranty costs. Deferred system profit does not include the profit associated with product shipments to certain customers in Japan, to whom title does not transfer until customer acceptance. Shipments to such customers in Japan are classified as inventory at cost until the time of acceptance.

We enter into sales arrangements that may consist of multiple deliverables of our products and services where certain elements of the sales arrangement are not delivered and accepted in one reporting period. Judgment is required to properly identify the accounting units of the multiple deliverable transactions and to determine the manner in which revenue should be allocated among the accounting units. Additionally, judgment is required to interpret various commercial terms and determine when all criteria of revenue recognition have been met in order for revenue recognition to occur in the appropriate accounting period. While changes in the allocation of the estimated selling price between the accounting units will not affect the amount of total revenue recognized for a particular arrangement, any material changes in these allocations could impact the timing of revenue recognition, which could have a material effect on our financial position and results of operations.
Income Taxes
We account for income taxes in accordance with the authoritative guidance which requires income tax effects for changes in tax laws are recognized in the period in which the law is enacted.
Transition tax liability is recognized in the period when the change in the U.S. tax law was enacted and the income tax effects are recorded as a component of provision for income taxes from continuing operations. The calculation of the transition tax liability includes assumptions and reasonable estimates of the income tax effects and are based on provisional tax amounts. Several inputs were considered in the calculation, such as the calculation of the post-1986 foreign earnings and profit (“E&P”), income tax pools for all foreign subsidiaries, and the amount of those earnings held in cash and other specified assets. We applied the current interpretations from the U.S. federal and state governments and regulatory organization in our calculation of the transition tax liability and our reasonable estimate of the transition tax liability could change if further interpretations are provided for in the future. We expect to fully complete our provisional transition tax liability calculation within the reasonable measurement period allowed by the authoritative guidance.
Deferred tax assets and liabilities are recognized using enacted tax rates for the effect of temporary differences between the book and tax bases of recorded assets and liabilities. The guidance also requires that deferred tax assets be reduced by a valuation allowance if it is more likely than not that a portion of the deferred tax asset will not be realized. We have determined that a valuation allowance is necessary against a portion of the deferred tax assets, but we anticipate that our future taxable income will be sufficient to recover the remainder of our deferred tax assets. However, should there be a change in our ability to recover our deferred tax assets that are not subject to a valuation allowance, we could be required to record an additional valuation allowance against such deferred tax assets. This would result in an increase to our tax provision in the period in which we determine that the recovery is not probable.
On a quarterly basis, we provide for income taxes based upon an estimated annual effective income tax rate. The effective tax rate is highly dependent upon the geographic composition of worldwide earnings, tax regulations governing each region, availability of tax credits and the effectiveness of our tax planning strategies. We carefully monitor the changes in many factors and adjust our effective income tax rate on a timely basis. If actual results differ from these estimates, this could have a material effect on our financial condition and results of operations.
In addition, the calculation of our tax liabilities involves dealing with uncertainties in the application of complex tax regulations. In accordance with the authoritative guidance on accounting for uncertainty in income taxes, we recognize liabilities for uncertain tax positions based on the two-step process. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be sustained in audit, including resolution of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement. We reevaluate these uncertain tax positions on a quarterly basis. This evaluation is based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, effectively settled issues under audit and new audit activity. Any change in these factors could result in the recognition of a tax benefit or an additional charge to the tax provision.
Valuation of Goodwill and Intangible Assets
Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in each business combination. We have four reporting units: Wafer Inspection, Patterning, Global Services and Support, and Others. See Note 6, “Goodwill and Purchased Intangible Assets” to the Condensed Consolidated Financial Statements for additional details.
We performed a qualitative assessment of the goodwill by reporting unit as of November 30, 2017 during the three months ended December 31, 2017 and concluded that there was no impairment. We assess goodwill for impairment annually as well as whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Long-lived intangible assets are tested for impairment whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable.

If we were to encounter challenging economic conditions, such as a decline in our operating results, an unfavorable industry or macroeconomic environment, a substantial decline in our stock price, or any other adverse change in market conditions, we may be required to perform the two-step quantitative goodwill impairment analysis. In addition, if such conditions have the effect of changing one of the critical assumptions or estimates we use to calculate the value of our goodwill or intangible assets, we may be required to record goodwill and/or intangible asset impairment charges in future periods, whether in connection with our next annual impairment assessment or prior to that, if any triggering event occurs outside of the quarter during which the annual goodwill impairment assessment is performed. It is not possible at this time to determine if any such future impairment charge would occur or, if it does, whether such charge would be material to our consolidated results of operations.
Inventories
Inventories are stated at the lower of cost (on a first-in, first-out basis) or net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. Demonstration units are stated at their manufacturing cost and written down to their net realizable value. We review and set standard costs semi-annually at current manufacturing costs in order to approximate actual costs. Our manufacturing overhead standards for product costs are calculated assuming full absorption of forecasted spending over projected volumes, adjusted for excess capacity. Abnormal inventory costs such as costs of idle facilities, excess freight and handling costs, and spoilage are recognized as current period charges. We write down product inventory based on forecasted demand and technological obsolescence and service spare parts inventory based on forecasted usage. These factors are impacted by market and economic conditions, technology changes, new product introductions and changes in strategic direction and require estimates that may include uncertain elements. Actual demand may differ from forecasted demand, and such differences may have a material effect on recorded inventory values.
Recent Accounting Pronouncements
For a description of recent accounting pronouncements, including those recently adopted and the expected dates of adoption as well as estimated effects, if any, on our condensed consolidated financial statements of those not yet adopted, see Note 1, “Basis of Presentation” to the Condensed Consolidated Financial Statements.condensed consolidated financial statements for additional details.

RESULTS OF OPERATIONS
On July 1, 2018, we adopted ASC 606 using the modified retrospective transition approach. Results for reporting periods beginning after June 30, 2018 are presented under ASC 606, while prior period amounts are presented under legacy guidance. For additional details, refer to Note 2 “Revenue” to the condensed consolidated financial statements.
Revenues and Gross Margin
Three months ended    Three months ended    
(Dollar amounts in thousands)December 31,
2017
 September 30, 2017 December 31,
2016
 Q2 FY18 vs.
Q1 FY18
 Q2 FY18 vs.
Q2 FY17
March 31,
2019
 December 31, 2018 March 31,
2018
 Q3 FY19
vs.
Q2 FY19
 Q3 FY19
vs.
Q3 FY18
Revenues:                      
Product$761,587
 $760,787
 $683,733
 $800
  % $77,854
 11%$793,224
 $852,201
 $797,797
 $(58,977) (7)% $(4,573) (1)%
Service214,235
 208,794
 193,152
 5,441
 3 % 21,083
 11%304,087
 267,697
 223,497
 36,390
 14 % 80,590
 36 %
Total revenues$975,822
 $969,581
 $876,885
 $6,241
 1 % $98,937
 11%$1,097,311
 $1,119,898
 $1,021,294
 $(22,587) (2)% $76,017
 7 %
Costs of revenues$347,334
 $353,449
 $318,507
 $(6,115) (2)% $28,827
 9%$486,945
 408,260
 $368,356
 $78,685
 19 % $118,589
 32 %
Gross margin percentage64% 64% 64%        56% 64% 64%        

Six months ended  Nine months ended  
(Dollar amounts in thousands)December 31,
2017
 December 31,
2016
 Q2 FY18 YTD vs.
Q2 FY17 YTD
March 31,
2019
 March 31,
2018
 Q3 FY19 YTD vs.
Q3 FY18 YTD
Revenues:          
Product$1,522,374
 $1,245,486
 $276,888
 22%$2,474,652
 $2,320,171
 $154,481
 7%
Service423,029
 382,072
 40,957
 11%835,817
 646,526
 189,291
 29%
Total revenues$1,945,403
 $1,627,558
 $317,845
 20%$3,310,469
 $2,966,697
 $343,772
 12%
Costs of revenues$700,783
 $596,343
 $104,440
 18%$1,276,592
 $1,068,475
 $208,117
 19%
Gross margin percentage64% 63%    61% 64%    

Product revenues
Our business is affected by the concentration of our customer base and our customers’ capital equipment procurement schedulespatterns as a result of their investment plans. Our product revenues in any particular quarterperiod are significantly impacted by the amount of new orders that we receive during that quarterperiod and, depending upon the duration of manufacturing and installation cycles, in the preceding quarters.period.
Product revenuesrevenue decreased during the three months ended DecemberMarch 31, 2017 compared to the three months ended September 30, 2017 remained relatively unchanged.
Product revenues increased during the three months ended December 31, 20172019 compared to the three months ended December 31, 2016, 2018 and March 31, 2018, primarily due to increased investmentslower product shipments to customers in the memory business, partially offset by $125.8 million in product revenue from our memory customers for next generation technology as well as capacity-related investments.newly acquired Orbotech business.

Product revenues increased during the sixnine months ended DecemberMarch 31, 20172019 compared to the sixnine months ended DecemberMarch 31, 2016,2018, primarily due to increased investmentsa strong demand from our customers in the wafer inspection business, $125.8 million in product revenue from our newly acquired Orbotech business, and a favorable impact from the adoption of ASC 606 due to our assessment of timing of transfer of control, partially offset by a lower products shipments to customers in the memory and logic customers for next generation technology as well as capacity-related investments.business.
Service revenues
Service revenues are generated from product maintenance contracts,and support services, as well as billable time and material service calls made to our customers after the expiration of the warranty period.customers. The amount of our service revenues is typically a function of the number of post-warranty systems installed at our customers’ sites and the utilization of those systems, but it is also impacted by other factors, such as our rate of service contract renewals, the types of systems being serviced and fluctuations in foreign exchange rates.
Service revenues increased during the three months ended December 31, 2017 increased compared to each of the three months ended September 30, 2017 and December 31, 2016, and service revenues during the six months ended December 31, 2017 increased comparedcomparative periods presented, primarily due to the six months ended December 31, 2016, primarily asimpact of adoption of ASC 606 whereby revenue from the standard warranty represents a result of separate performance obligation and included in our services revenue, and an increase over timeof $35.5 million in the number of post-warranty systems installed at service revenue from our customers’ sites over that time period.

newly acquired Orbotech business.
Revenues by region
The following is a summary of revenues by geographic region, based on ship-to location, for the indicated periods (as a percentage of total revenues):periods: 
Three months endedThree months ended
(Dollar amounts in thousands)December 31, 2017 September 30, 2017 December 31, 2016March 31, 2019 December 31, 2018 March 31, 2018
Taiwan$275,507
 25% $266,534
 24% $156,428
 15%
China206,164
 19% 269,878
 24% 143,761
 14%
Korea$270,184
 28% $274,678
 28% $96,846
 11%196,490
 18% 126,968
 11% 314,062
 31%
Taiwan216,791
 22% 138,559
 14% 336,058
 38%
North America156,824
 14% 150,113
 13% 113,477
 11%
Japan154,762
 16% 146,435
 15% 67,855
 8%146,069
 13% 180,283
 16% 199,066
 19%
North America149,042
 15% 129,250
 13% 153,162
 17%
Europe & Israel82,158
 8% 83,505
 9% 93,440
 11%
China66,460
 7% 168,339
 17% 73,152
 9%
Europe and Israel76,054
 7% 80,618
 7% 53,043
 6%
Rest of Asia36,425
 4% 28,815
 4% 56,372
 6%40,203
 4% 45,504
 5% 41,457
 4%
Total$975,822
 100% $969,581
 100% $876,885
 100%$1,097,311
 100% $1,119,898
 100% $1,021,294
 100%
A significant portion of our revenues continuescontinue to be generated in Asia, where a substantial portion of the world’s semiconductor manufacturing capacity is located, and we expect that trend to continue.
Gross margin
Our gross margin fluctuates with revenue levels and product mix and is affected by variations in costs related to manufacturing and servicing our products, including our ability to scale our operations efficiently and effectively in response to prevailing business conditions.
The following table summarizes the major factors that contributed to the changes in gross margin percentage:
Gross Margin Percentage Gross Margin PercentageGross Margin Percentage Gross Margin Percentage
Three months ended Three months ended Six months endedThree months ended Three months endedNine months ended
September 30, 201763.5 % December 31, 201663.7 % 63.4 %
December 31, 201863.5 % March 31, 201863.9 %64.0 %
Revenue volume of products and services(0.1)% Revenue volume of products and services0.6 % 1.4 %(1.9)% Revenue volume of products and services(2.5)%(0.8)%
Mix of products and services sold0.5 % Mix of products and services sold0.5 % (0.5)%0.2 % Mix of products and services sold0.6 %1.3 %
Manufacturing labor, overhead and efficiencies0.1 % Manufacturing labor, overhead and efficiencies(0.4)% (0.1)%(2.2)% Manufacturing labor, overhead and efficiencies(2.3)%(1.0)%
Other service and manufacturing costs0.4 % Other service and manufacturing costs % (0.2)%0.2 % Other service and manufacturing costs0.1 %(0.5)%
December 31, 201764.4 % December 31, 201764.4 % 64.0 %
Impact from acquisition of Orbotech(4.2)% Impact from acquisition of Orbotech(4.2)%(1.6)%
March 31, 201955.6 % March 31, 201955.6 %61.4 %

Changes in gross margin percentage driven by revenue volume of products and services reflect our ability to leverage existing infrastructure to generate higher revenues. It also includes the effect of fluctuations in foreign exchange rates, average customer pricing and customer revenue deferrals associated with volume purchase agreements. Changes in gross margin percentage from mix of products and services sold reflect the impact of changes in the composition within product and service offerings. Changes in gross margin percentage from manufacturing labor, overhead and efficiencies reflect our ability to manage costs and drive productivity as we scale our manufacturing activity to respond to customer requirements; this includes the impact of capacity utilization, use of overtime and variability of cost structure. Changes in gross margin percentage from other service and manufacturing costs include the impact of customer support costs, including the efficiencies with which we deliver services to our customers, and the effectiveness with which we manage our production plans and inventory risk.
Our gross margin increasedduring the three months ended March 31, 2019 decreased compared to 64.4% during the three months ended December 31, 2017 from 63.5% during the three months ended September 30, 2017,2018 and March 31, 2018, primarily due to a lower revenue volume of products and services and an increase in service and manufacturing costs, partially offset by a favorable mix of products and services sold, aas well as the acquisition of Orbotech which historically had lower charges for inventory obsolescence, lower warranty costs, and an increase in manufacturing efficiencies.product gross margins.
Our gross margin increased to 64.4% during the threenine months ended DecemberMarch 31, 2017, from 63.7% during2019 decreased compared to the threenine months ended DecemberMarch 31, 2016,2018, primarily due to higher revenue volume of productsan increase in service and services, andmanufacturing costs, a favorable mix of products and services sold, partially offset by a decrease in manufacturing efficiencies.

Our gross margin increased to 64.0% during the six months ended December 31, 2017, from 63.4% during the six months ended December 31, 2016, primarily due to higherlower revenue volume of products and services, partially offset by a less favorable mix of products and services sold, a decrease in manufacturing efficiencies, and other costs.as well as the acquisition of Orbotech which historically had lower product gross margins.


Research and Development (“R&D”)
(Dollar amounts in thousands)Three months ended        Three months ended        
December 31,
2017
 September 30,
2017
 December 31,
2016
 Q2 FY18 vs.
Q1 FY18
 Q2 FY18 vs.
Q2 FY17
March 31,
2019
 December 31,
2018
 March 31,
2018
 Q3 FY19
vs.
Q2 FY19
 Q3 FY19
vs.
Q3 FY18
R&D expenses$156,745
 $146,732
 $130,912
 $10,013
 7% $25,833
 20%184,887
 165,903
 153,239
 $18,984
 11% $31,648
 21%
R&D expenses as a percentage of total revenues16% 15% 15%        17% 15% 15%        
(Dollar amounts in thousands)Six months ended    Nine months ended    
December 31,
2017
 December 31,
2016
 Q2 FY18 YTD vs.
Q2 FY17 YTD
March 31,
2019
 March 31,
2018
 Q3 FY19 YTD vs.
Q3 FY18 YTD
R&D expenses$303,477
 $260,145
 $43,332
 17%$504,320
 $456,626
 $47,694
 10%
R&D expenses as a percentage of total revenues16% 16%    15% 15%    
R&D expenses may fluctuate with product development phases and project timing as well as our focused R&D efforts that are aligned with our overall business strategy. As technological innovation is essential to our success, we may incur significant costs associated with R&D projects, including compensation for engineering talent, engineering material costs, and other expenses.
R&D expenses during the three months ended December 31, 2017 increased compared to the three months ended September 30, 2017, primarily due to an increase in engineering materials and supplies expenses of $9.1 million, and an increase in consulting expenses of $1.4 million, partially offset by a decrease in merger-related expenses of $1.1 million.
R&D expenses during the three months ended December 31, 2017 increased compared to the three months ended December 31, 2016, primarily due to an increase in engineering materials and supplies expenses of $13.5 million, an increase in employee-related expenses of $9.0 million as a result of additional engineering headcount, and higher variable compensation, and an increase in consulting expenses of $1.8 million, partially offset by a decrease in merger-related expenses of $1.1 million.
R&D expenses during the six months ended December 31, 2017 increased compared to the six months ended December 31, 2016, primarily due to an increase in engineering materials and supplies expenses of $21.9 million, an increase in employee-related expenses of $16.8 million as a result of additional engineering headcount, and higher variable compensation, an increase in consulting expenses of $1.8 million, an increase in depreciation expense of $1.0 million, and a lower benefit from external funding of $1.4 million.
Our future operating results will depend significantly on our ability to produce products and provide services that have a competitive advantage in our marketplace. To do this, we believe that we must continue to make substantial and focused investments in our research and development.R&D. We remain committed to product development in new and emerging technologies as we address the yield challenges our customers face at future technology nodes.
R&D expenses during the three months ended March 31, 2019 increased compared to the three months ended December 31, 2018, primarily due to an increase in employee-related expenses of $10.1 million as a result of additional engineering headcount and higher variable compensation, and $19.2 million expenses from the Orbotech business, partially offset by a decrease in engineering materials and supplies expenses of $9.5 million.
R&D expenses during the three months ended March 31, 2019 increased compared to the three months ended March 31, 2018, primarily due to an increase in employee-related expenses of $9.0 million as a result of additional engineering headcount and higher variable compensation, an increase in engineering materials and supplies expenses of $1.5 million, an increase in depreciation expense of $1.4 million, and $19.2 million expenses from the Orbotech business.

R&D expenses during the nine months ended March 31, 2019 increased compared to the nine months ended March 31, 2018, primarily due to an increase in employee-related expenses of $22.5 million as a result of additional engineering headcount and higher variable compensation, an increase in depreciation expenses of $4.6 million, an increase in engineering materials and supplies expenses of $2.5 million, and $19.2 million expenses from the Orbotech business.

Selling, General and Administrative (“SG&A”)
Three months ended        Three months ended        
(Dollar amounts in thousands)December 31,
2017
 September 30,
2017
 December 31,
2016
 Q2 FY18 vs.
Q1 FY18
 Q2 FY18 vs.
Q2 FY17
March 31,
2019
 December 31,
2018
 March 31,
2018
 Q3 FY19
vs.
Q2 FY19
 Q3 FY19
vs.
Q3 FY18
SG&A expenses$105,546
 $107,713
 $93,532
 $(2,167) (2)% $12,014
 13%182,184
 112,462
 113,237
 $69,722
 62% $68,947
 61%
SG&A expenses as a percentage of total revenues11% 11% 11%        17% 10% 11%        
Six months ended    Nine months ended    
(Dollar amounts in thousands)December 31,
2017
 December 31,
2016
 Q2 FY18 YTD vs.
Q2 FY17 YTD
March 31,
2019
 March 31,
2018
 Q3 FY19 YTD vs.
Q3 FY18 YTD
SG&A expenses$213,259
 $187,920
 $25,339
 13%$409,084
 $325,934
 $83,150
 26%
SG&A expenses as a percentage of total revenues11% 12%    12% 11%    
SG&A expenses during the three months ended DecemberMarch 31, 2017 decreased compared to the three months ended September 30, 2017, primarily due to lower employee-related expenses of $4.1 million as a result of lower variable compensation, and a decrease in merger-related expenses of $1.4 million, partially offset by an increase in consulting expense of $1.7 million, and the impact of the recovery from accounts receivable that had been previously classified as bad debt of $1.9 million during the three months ended September 30, 2017.
SG&A expenses during the three months ended December 31, 20172019 increased compared to the three months ended December 31, 2016,2018, primarily due to an increase in employee-related expenses of $7.3$8.4 million on accountas a result of additional headcount, higher employee benefit costs and higher variable compensation, an increase in consulting expense of $3.2 million, an increase in facilities-related expense of $1.2 million, and higher contributions to our corporate social responsibility program of $1.0 million, partially offset by a decrease in merger-relatedacquisition-related expenses of $2.7 million.$18.1 million pertaining primarily to the Orbotech acquisition, $33.2 million expenses from the Orbotech business including $8.8 million of amortization expense for purchased intangible assets, and $10.9 million of stock-based compensation expense acceleration for certain equity awards for Orbotech employees.
SG&A expenses during the sixthree months ended DecemberMarch 31, 20172019 increased compared to the sixthree months ended DecemberMarch 31, 2016,2018, primarily due to an increase in employee-related expenses of $17.4$8.4 million on accountas a result of additional headcount, higher employee benefit costs and higher variable compensation, an increase in consultingacquisition-related expenses of $14.9 million pertaining primarily to the Orbotech acquisition, $33.2 million expenses from the Orbotech business including $8.8 million of amortization expense for purchased intangible assets, and $10.9 million of $3.8 million, higher contributionsstock-based compensation expense acceleration for certain equity awards for Orbotech employees.
SG&A expenses during the nine months ended March 31, 2019 increased compared to our corporate social responsibility program of $2.0 million,the nine months ended March 31, 2018, primarily due to an increase in facilities-related expense of $1.9 million, higher travel-relatedemployee-related expenses of $1.8$14.6 million as a result of additional headcount, higher employee benefit costs and higher variable compensation, an increase in cost of support for sales evaluations of $1.2 million, partially offset by a decrease in merger-relatedacquisition-related expenses of $3.6$22.0 million, $33.2 million expenses from the Orbotech business including $8.8 million of amortization expense for purchased intangible assets, and the impact$10.9 million of the recovery from accounts receivable that had been previously classified as bad debt of $1.9 million during the three months ended September 30, 2017.stock-based compensation expense acceleration for certain equity awards for Orbotech employees.

Interest Expense and Other Expense (Income), Net
(Dollar amounts in thousands)Three months endedThree months ended
December 31, 2017 September 30, 2017 December 31, 2016March 31, 2019 December 31, 2018 March 31, 2018
Interest expense$27,372
 $30,576
 $30,624
$31,187
 26,538
 28,119
Other expense (income), net$(8,482) $(5,041) $(3,535)$(9,282) (9,228) (7,640)
Interest expense as a percentage of total revenues3% 3% 3%3% 2% 3%
Other expense (income), net as a percentage of total revenues1% 1% %1% 1% 1%

(Dollar amounts in thousands)Six months endedNine months ended
December 31, 2017 December 31, 2016March 31, 2019 March 31, 2018
Interest expense$57,948
 $61,356
$84,087
 $86,067
Other expense (income), net$(13,523) $(7,271)$(28,535) $(19,847)
Interest expense as a percentage of total revenues3% 4%3% 3%
Other expense (income), net as a percentage of total revenues1% %1% 1%
Interest expense during the three and sixmonths ended March 31, 2019 increased compared to the three months ended December 31, 2017 decreased compared to the three2018, and six months ended December 31, 2016 and the three months ended September 30, 2017, primarily due to $250.0 million repaymentinterest on the $1.20 billion Senior Notes issued in March 2019. The decrease in interest expense during the nine months ended March 31, 2019 compared the nine months ended March 31, 2018 was primarily due to lower outstanding debt during the majority of the Senior Notes at maturity and prepayment of term loans.2019 period.
Other expense (income), net is comprised primarily of realized gains or losses on sales of marketable securities, gains or losses from revaluations of certain foreign currency denominated assets and liabilities as well as foreign currency contracts, impairments associated with equity investments in privately-held companies and any subsequent recoveries of impaired investments, interest-related accruals (such as interest and penalty accruals related to our tax obligations) and interest income earned on our investmentinvested cash, cash equivalents and cash portfolio.marketable securities.
The change in other expense (income), net during the three months ended March 31, 2019 compared to the three months ended December 31, 2018 was primarily due to a decrease in interest accruals related to uncertain tax positions of $1.3 million partially offset by an increase in interest income of $1.2 million.
The increase in other expense (income), net during the three months ended DecemberMarch 31, 20172019 compared to the three months ended September 30, 2017March 31, 2018 was primarily due tolower net foreign currency gainloss of $1.6 million, and an impairment charge on an equity investment in a privately-held company of $1.0 million that occurred during the three months ended September 31, 2017, which did not take place during the three months ended December 31, 2017.

The increase in other expense (income), net during the three months ended December 31, 2017 compared to the three months ended December 31, 2016 was primarily due to an increase in interest income of $3.2 million and net foreign currency gains of approximately $1.6$1.8 million.
The increase in other expense (income), net during the sixnine months ended DecemberMarch 31, 20172019 compared to the sixnine months ended DecemberMarch 31, 20162018 was primarily due to an increase in interest income of $6.9$7.1 million and a higher net foreign currency gain of $3.3 million.
Provision for Income Taxes
The following table provides details of income taxes:    
 Three months ended
March 31,
 Nine months ended
March 31,
(Dollar amounts in thousands)2019 2018 2019 2018
Income before income taxes$221,390
 $365,983
 $1,064,921
 $1,049,442
Provision for income taxes$28,745
 $59,102
 $107,232
 $595,944
Effective tax rate13.0% 16.1% 10.1% 56.8%
 Three months ended
December 31,
 Six months ended
December 31,
(Dollar amounts in thousands)2017 2016 2017 2016
Income before income taxes$347,307
 $306,845
 $683,459
 $529,065
Provision for income taxes$481,626
 $68,594
 $536,842
 $112,713
Effective tax rate138.7% 22.4% 78.5% 21.3%
Our effective tax rateTax expense was lower as a percentage of income before taxes during the three and six months ended DecemberMarch 31, 20172019 compared to the three months ended March 31, 2018 primarily due to the impact of the following items:        
Tax expense decreased by $4.1 million during the three months ended March 31, 2019 relating to a non-taxable increase in the value of the assets held within our Executive Deferred Savings Plan;
Tax expense decreased by $7.7 million during the three months ended March 31, 2019 relating to the reduction of the U.S. federal tax rate from 28.1% to 21% for the fiscal year ending June 30, 2019;

Tax expense decreased by $4.1 million during the three months ended March 31, 2019 relating to an increase in the proportion of our earnings generated in jurisdictions with tax rates lower than the U.S. statutory rate;
Tax expense decreased by $9.7 million during the three months ended March 31, 2019 relating to the Foreign-Derived Intangible Income deduction; partially offset by
Tax expense increased by $7.8 million during the three months ended March 31, 2019 relating to the Global Intangible Low-Taxed Income (“GILTI”); and
Tax expense increased by $10.0 million during the three months ended March 31, 2019 relating to the Orbotech acquisition.
Tax expense was impactedlower as a percentage of income before taxes during the nine months ended March 31, 2019 compared to the nine months ended March 31, 2018 primarily due to the impact of the following items:
Tax expense increased by $446.1 million during the nine months ended March 31, 2018 due to enactment of the Tax Cuts and Jobs Act (“the Act”), which was enacted into law on December 22, 2017. Income tax effects resulting from changes in tax laws are accounted for2017;
Tax expense decreased by us in accordance with the authoritative guidance, which requires that these tax effects be recognized in the period in which the law is enacted and the effects are recorded as a component of provision for income taxes from continuing operations. As a result, we made an additional provision for income tax resulting from the enactment of the Act during the three and six months ended December 31, 2017.
This Act includes significant changes to the U.S. corporate income tax system which reduces the U.S. federal corporate tax rate from 35.0% to 21.0% as of January 1, 2018; shifts to a modified territorial tax regime which requires companies to pay a transition tax on earnings of certain foreign subsidiaries that were previously tax deferred; and creates new taxes on certain foreign-sourced earnings. The decrease in the U.S. federal corporate tax rate from 35.0% to 21.0% results in a blended statutory tax rate of 28.1% for the fiscal year ending June 30, 2018. The new taxes for certain foreign-sourced earnings under the Act are effective for the Company after the fiscal year ending June 30, 2018.
Provision for income taxes increased by $413.0 million and $424.1$18.7 million during the three and sixnine months ended DecemberMarch 31, 2017, respectively, primarily due to: (i) a transition tax of $340.9 million on our total post-1986 earnings and profits (“E&P”) which, prior2019 relating to the enactment of the Act, was previously deferred from U.S. income taxes; and (ii) a $101.1 millionan increase in income tax expense as a result of the re-measurementproportion of our deferredearnings generated in jurisdictions with tax assets and liabilities based onrates lower than the Act’s new corporate taxU.S. statutory rate of 21.0%. The increase in provision for income taxes during the three and sixnine months ended DecemberMarch 31, 2017 was partially offset2019;
Tax expense decreased by a decrease of $25.0$34.7 million during the nine months ended March 31, 2019 relating to the reduction of the U.S. federal corporate tax rate from 35.0%28.1% to 28.1%21% for the fiscal year ending June 30, 2018. The amounts resulting from2019;
Tax expense decreased by $43.7 million during the transitionnine months ended March 31, 2019 relating to the Foreign-Derived Intangible Income deduction; partially offset by
Tax expense increased by $35.3 million during the nine months ended March 31, 2019 relating to the GILTI; and
Tax expense increased by $10.0 million during the nine months ended March 31, 2019 relating to the Orbotech acquisition.
Our future effective income tax are payable overrate depends on various factors, such as tax legislation, the geographic composition of our pre-tax income, the amount of our pre-tax income as business activities fluctuate, non-deductible expenses incurred in connection with acquisitions, research and development credits as a periodpercentage of up to eight years.

As of December 31, 2017, we had not yet completedaggregate pre-tax income, non-taxable or non-deductible increases or decreases in the assets held within our accounting forExecutive Deferred Savings Plan, the tax effects of the enactment of the Act. Our provision for income taxes for the three and six months ended December 31, 2017 is based in part on a reasonable estimate of the effects on its transition tax and existing deferred tax balances. For the amounts which we were able to reasonably estimate, we recognized a provisional tax amount of $442.0 million, which is included as a component of provision for income taxes from continuing operations. The components of the provisional tax amounts are as follows:

We recorded a provisional tax amount of $340.9 million for the transition tax liability. We have not yet completed the calculation of the total post-1986 foreign E&Pemployee stock activity and the income tax pools for all foreign subsidiaries. Further, the transition tax is based in part on the amount of those earnings held in cash and other specified assets. This amount may change when we finalize the calculation of post-1986 foreign E&P previously deferred from U.S. federal and state governments and regulatory organizations may change the provisional tax liability or the accounting treatment of the provisional tax liability.

We recorded a provisional tax amount of $101.1 million to re-measure certain deferred tax assets and liabilities as a result of the enactment of the Act. We are still analyzing certain aspects of the Act and refining the estimate of the expected reversaleffectiveness of our deferred tax balances. This can potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts.


We expect a recurring tax rate of 17% for the remaining six months of the fiscal year ending June 30, 2018. In addition, there will be an increase or decrease in tax expense for the remaining six months of the fiscal year ending June 30, 2018 for changes in uncertain tax positions and items treated as period costs that are not included in the recurring tax rate. Our recurring tax rate differs from our effective tax rate as a result of inclusion of certain period costs in our effective tax rate but not in the recurring tax rate. There will also be changes in the provisional tax amounts as a result of the Act related to the effects on our deferred tax balances and the transition tax as additional information becomes available. The new taxes for certain foreign-sourced earnings under the Act are effective for us after the fiscal year ending June 30, 2018.
The Act also includes provisions for Global Intangible Low-Taxed Income (“GILTI”) wherein taxes on foreign income are imposed in excess of a deemed return on tangible assets of foreign corporations. This income will effectively be taxed at a 10.5% tax rate in general. As a result, our deferred tax assets and liabilities are being evaluated if the deferred tax assets and liabilities should be recognized for the basis differences expected to reverse as a result of GILTI provisions that are effective for us after the fiscal year ending June 30, 2018, or should the tax on GILTI provisions be recognized in the period the Act was signed into law. Because of the complexity of the new provisions, we are continuing to evaluate on how the provisions will be accounted for under the U.S. generally accepted accounting principles wherein companies are allowed to make an accounting policy election of either (i) account for GILTI as a component of tax expense in the period in which we are subject to the rules (the “period cost method”), or (ii) account for GILTI in our measurement of deferred taxes (the “deferred method”). Currently, we have not elected a method and will only do so after our completion of the analysis of the GILTI provisions and our election method will depend, in part, on analyzing our global income to determine whether we expect to have future U.S. inclusions in our taxable income related to GILTI and, if so, the impact that is expected.planning strategies.
In the normal course of business, we are subject to examination by tax authorities throughout the world. We are subject tounder United States federal income tax examination for all years beginning from the fiscal year ended June 30, 2014. We2016. Although we believe our tax estimates are subject to statereasonable, the final determination of tax audits and any related litigation could be materially different from our historical income tax examinationsprovisions and accruals. The results of an audit or litigation could have a material adverse effect on our results of operations or cash flows in the period or periods for all years beginningwhich that determination is made.
In May 2017, Orbotech received an assessment from the ITA with respect to its fiscal year ended June 30, 2013. We are also subjectyears 2012 through 2014 (the “Assessment”, and the “Audit Period”, respectively), for an aggregate amount of tax against the Company, after offsetting all NOLs for tax purposes available through the end of 2014, of approximately NIS 218 million (approximately $65 million as of March 31, 2019), which amount includes related interest and linkage differentials to examinations in other major foreign jurisdictions, including Singapore, for all years beginning from the fiscal year ended June 30, 2013.
It is possible that certain examinations may be concluded inIsraeli consumer price index (as of date of the next twelve months. We believe that we may recognize up to $12.6 million of our existingAssessment). The Company believes its recorded unrecognized tax benefits within the next twelve months as a result of the lapse of statutes of limitations andare sufficient to cover the resolution of examinations with variousthe Assessment.

On August 31, 2018, Orbotech filed an objection in respect of the tax authorities.assessment (the “Objection”). Orbotech is now in the process of the second stage, in which the claims raised by it in the Objection are examined by different personnel at the ITA. In addition, the ITA can examine additional items and may assess additional amounts in the second stage. The second stage must be completed within one year of when the Objection was filed.

LIQUIDITY AND CAPITAL RESOURCES
(Dollar amounts in thousands)As of
December 31, 2017
 As of
June 30, 2017
As of
March 31, 2019
 As of
June 30, 2018
Cash and cash equivalents$1,073,394
 $1,153,051
$1,092,163
 $1,404,382
Marketable securities1,684,796
 1,863,689
805,105
 1,475,936
Total cash, cash equivalents and marketable securities$2,758,190
 $3,016,740
$1,897,268
 $2,880,318
Percentage of total assets51% 55%21% 51%
      
Six months ended December 31,Nine months ended March 31,
(In thousands)2017 20162019 2018
Cash flows:      
Net cash provided by operating activities$503,000
 $392,190
$827,171
 $855,607
Net cash provided by (used in) investing activities138,949
 (308,156)
Net cash used in financing activities(726,429) (247,603)
Net cash (used in) provided by investing activities(1,211,421) 164,843
Net cash provided by (used in) financing activities72,141
 (928,717)
Effect of exchange rate changes on cash and cash equivalents4,823
 (7,886)(110) 10,898
Net decrease in cash and cash equivalents$(79,657) $(171,455)
Net (decrease) increase in cash and cash equivalents$(312,219) $102,631
Cash and Cash Equivalents and Marketable Securities:
As of DecemberMarch 31, 2017,2019, our cash, cash equivalents and marketable securities totaled $2.76$1.90 billion, which isrepresents a decrease of $258.6$983.1 million from June 30, 2017.2018. The decrease is mainly due to the payment$1.82 billion paid to fund Orbotech and other business acquisitions, stock repurchases of Senior Notes$750.2 million, and term loans of $696.3 million,cash used for payment of dividends and dividend equivalents of $192.9 million, and stock repurchases of $80.4$350.9 million, partially offset by the net proceeds of our 2019 Senior Notes of $1.19 billion and our cash generated from operations and net proceeds from marketable securities of $172.4 million, and proceeds from the revolving credit facility, net of issuance costs, of $248.7 million. transactions.
As of DecemberMarch 31, 2017, $1.96 billion2019, $554.1 million of our $2.76$1.90 billion of cash, cash equivalents and marketable securities were held by our foreign subsidiaries and branch offices. We have accrued U.S. federal taxes under the Tax Cut and Jobs Act and can repatriate these funds without incurring any additional U.S. federal tax other than if the U.S. dollar value of the funds increase. We currently intend to indefinitely reinvest $1.76 billion$392.4 million of the cash, cash equivalents and marketable securities held by our foreign subsidiaries. If, however, a portion of these funds were to be repatriated to the United States, we would be required to accrue and pay state and foreign taxes of approximately 1%-22% of the funds repatriated. The amount of taxes due will depend on the amount and manner of the repatriation, as well as the location from which the funds are repatriated. We have accrued state and foreign tax on the remaining cash of $197.4$161.6 million of the $1.96 billion$554.1 million held by our foreign subsidiaries and branch offices. As such, these funds can be returned to the U.S. without accruing any additional U.S. tax expense.
Quarterly Cash Dividends and Special Cash Dividend:
During the three months ended DecemberMarch 31, 2017,2019, our Board of Directors declared a regular quarterly cash dividend of $0.59$0.75 per share on our outstanding common stock, which was paid on DecemberMarch 1, 20172019 to our stockholders of record as of the close of business on NovemberFebruary 15, 2017.2019. During the same period in fiscal year 2017,2018, our Board of Directors declared and paid a regular quarterly cash dividend of $0.54$0.59 per share on our outstanding common stock. The total amount of regular quarterly cash dividends and dividend equivalents paid during the three months ended DecemberMarch 31, 20172019 and 20162018 was $92.6$113.6 million and $84.5$92.1 million, respectively. The total amount of regular quarterly cash dividends and dividend equivalents paid during the sixnine months ended DecemberMarch 31, 20172019 and 20162018 was $186.7$348.0 million and $166.1$278.8 million, respectively. The amount of accrued dividendsdividend equivalents payable for regular quarterly cash dividends on unvested restricted stock units (RSUs) with dividend equivalent rights as of DecemberMarch 31, 20172019 and June 30, 20172018 was $4.8$6.5 million and $4.8$6.7 million, respectively. These amounts will be paid upon vesting of the underlying unvested restricted stock unitsRSU as described in Note 8,9, “Equity, and Long-term Incentive Compensation Plans and Non-Controlling Interest” to the condensed consolidated financial statements.

On November 19, 2014, weour Board of Directors declared a special cash dividend of $16.50 per share on our outstanding common stock which was paid on December 9, 2014 to our stockholders of record as of the close of business on December 1, 2014.stock. The declaration and payment of the special cash dividend was part of our leveraged recapitalization transaction under which the special cash dividend was financed through a combination of existing cash and proceeds from the debt financing disclosed in Note 7, “Debt,”8 “Debt” to the condensed consolidated financial statements that was completed during the three months ended December 31, 2014. As of the declaration date, theThe total amount of the special cash dividend accrued by us at the declaration date was approximately $2.76 billion, substantially all of which was paid out during the three months ended December 31, 2014, except for the aggregate special cash dividend of $43.0 million that was accrued for the unvested restricted stock units. As of December 31, 2017RSUs and June 30, 2017, we had $2.8 million and $9.0 million, respectively, of accrued dividends payable for the special cash dividend with respect to outstanding unvested restricted stock units, which will be paid when such underlying unvested restricted stock unitsRSUs vest. During the threesecond quarter of fiscal 2019, all of the special cash dividends accrued with respect to outstanding RSUs were vested and paid in full. During the nine months ended DecemberMarch 31, 20172019 and 2016,2018, the total special cash dividends paid with respect to vested restricted stock unitsRSUs were immaterial. During the six months ended December 31, 2017 and 2016, the total special cash dividends paid with respect to vested restricted stock units were $6.2$2.9 million and $7.7$6.3 million, respectively. Other than the special cash dividend declared during the three months ended December 31, 2014, we historically have not declared any special cash dividend.dividends. For details of the special cash dividend, refer to Note 8 “Equity and Long-Term Incentive Compensation Plans,” of the Notes to the Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2018.
Stock Repurchases:
The shares repurchased under our stock repurchase program have reduced our basic and diluted weighted-average shares outstanding.outstanding for the nine months ended March 31, 2019 and 2018. The stock repurchase program is intended, in part, to offset shares issued in connection with the purchases under our ESPP program and the vesting of employee restricted stock units.

Cash Flows from Operating Activities:
We have historically financed our liquidity requirements through cash generated from our operations. Net cash provided by operating activities during the sixnine months ended DecemberMarch 31, 2017 increased2019 decreased by $110.8$28.4 million compared to the sixnine months ended DecemberMarch 31, 20162018 primarily as a result of the following factors:
An increase in collectionsaccounts payable payments of approximately $271.0 million during the six months ended December 31, 2017 compared to the six months ended December 31, 2016, mainly driven by higher shipments;$94.0 million;
A decreaseAn increase in payments for employee-related expenses of approximately $54.0 million during the six months ended December 31, 2017 compared$22.0 million;
An increase in payments for merger and acquisition related expenses, mostly related to the six months ended December 31, 2016, primarily due to a change in the timing of certain variable compensation payments; and
Favorable impacts from foreign currency hedgesOrbotech acquisition of approximately $10.0 million during the six months ended December 31, 2017 compared to the six months ended December 31, 2016;$55.0 million.
These trends were partially offset byby:
An increase in accounts payable paymentscollections of approximately $186.0$55.0 million during the six months ended December 31, 2017 compared to the six months ended December 31, 2016; andmainly driven by higher shipments;
An increase in interest income of approximately $5.0 million mainly driven by higher interest rates;
A decrease in income tax payments of $36.9 million during the six months ended December 31, 2017 compared to the six months ended December 31, 2016.approximately $62.0 million;
A decrease in cash-long term incentives of approximately $11.0 million;
A decrease in debt interest payments of approximately $5.0 million; and
A decrease in net other tax payments of approximately $3.0 million.
Cash Flows from Investing Activities:
Net cash providedused by investing activities during the sixnine months ended DecemberMarch 31, 20172019 was $138.9 million$1.21 billion compared to cash used inprovided by investing activities of $308.2$164.8 million during the sixnine months ended DecemberMarch 31, 2016.2018. This change was mainly due to the net purchases$1.82 billion paid to fund Orbotech and other acquisitions, partially offset by cash received from sale and maturity of marketable securities of $285.0$679.9 million during the sixnine months ended DecemberMarch 31, 2016,2019, compared to the net liquidation of investments in marketable securities of approximately $172.4$215.9 million during the sixnine months ended DecemberMarch 31, 2017.2018.
Cash Flows from Financing Activities:
Net cash used inprovided by financing activities during the sixnine months ended DecemberMarch 31, 2017 increased by $478.82019 was $72.1 million compared to the six months ended December 31, 2016. Net cash used inby financing activities were mainly impacted by:
An increase in the repayment of debt of $616.3$928.7 million during the sixnine months ended DecemberMarch 31, 2017 compared to2018. This change was mainly impacted by net proceeds from the six months ended December 31, 2016;
An increaseissuance of Senior Notes in common stock repurchasesMarch 2019 of $80.4 million during the six months ended December 31, 2017 compared to the six months ended December 31, 2016;$1.19 billion and
An increase in dividend and dividend equivalent lower net payments of $19.1 million during the six months ended December 31, 2017 compared to the six months ended December 31, 2016, due to an increase in our quarterly dividend from $0.54 to $0.59 per share instituted during the six months ended December 31, 2017,revolving credit facility, partially offset by
An increase in proceedscommon stock repurchases of $585.1 million;
An increase in dividend and dividend equivalent payments of $65.9 million due to an increase in our quarterly dividend from revolving credit facility, net of issuance costs of $248.7 million during the six months ended December 31, 2017 compared$0.59 to the six months ended December 31, 2016.$0.75 per share; and

Senior Notes:
In March 2019 and November 2014, we issued $1.20 billion and $2.50 billion, respectively (each a “2019 Senior Notes”, a “2014 Senior Notes”, and collectively the “Senior Notes”), aggregate principal amount of senior, unsecured long-term notes (collectively referred to as “Senior Notes”). We issued the Senior Notes as part of the leveraged recapitalization plan under which the proceeds from the Senior Notes in conjunction with the proceeds from the term loans (described below) and cash on hand were used (x) to fund a special cash dividend of $16.50 per share, aggregating to approximately $2.76 billion, (y) to redeem $750.0 million of 2018 Senior Notes, including associated redemption premiums, accrued interest and other fees and expenses and (z) for other general corporate purposes, including repurchases of shares pursuant to our stock repurchase program. notes.
The interest rate specified for each series of the 2014 Senior Notes will be subject to adjustments from time to time if Moody’s Investor Service, Inc. (“Moody’s”) or Standard & Poor’s Ratings Services (“S&P”) or, under certain circumstances, a substitute rating agency selected by us as a replacement for Moody’s or S&P, as the case may be (a “Substitute Rating Agency”), downgrades (or subsequently upgrades) its rating assigned to the respective series of the 2014 Senior Notes such that the adjusted rating is below investment grade. IfUnlike the adjusted rating of any2014 Senior Notes, the interest rate for each series of Senior Notes from Moody’s (or, if applicable, any Substitute Rating Agency) is decreased to Ba1, Ba2, Ba3 or B1 or below, the stated interest rate on such series of Senior Notes as noted above will increase by 25 bps, 50 bps, 75 bps or 100 bps, respectively (“bps” refers to Basis Points and 1% is equal to 100 bps). If the rating of any series of Senior Notes from S&P (or, if applicable, any Substitute Rating Agency) with respect to such series of Senior Notes is decreased to BB+, BB, BB- or B+ or below, the stated interest rate on such series of Senior Notes as noted above will increase by 25 bps, 50 bps, 75 bps or 100 bps, respectively. The interest rates on any series of2019 Senior Notes will permanently cease tonot be subject to any adjustment (notwithstanding any subsequent decrease insuch adjustments. During the ratings by any of Moody’s, S&P and, if applicable, any Substitute Rating Agency) if suchthree months ended June 30, 2018, we entered into a series of Senior Notes becomes rated “Baa1” (or its equivalent) or higher by Moody’s (or, if applicable, any Substitute Rating Agency)forward contracts (the “2018 Rate Lock Agreements”) to lock the benchmark interest rate with notional amount of $500.0 million in aggregate. For additional details, refer to Note 15, “Derivative Instruments and “BBB+Hedging Activities. (or its equivalent) or higher by S&P (or, if applicable, any Substitute Rating Agency), or one of those ratings if rated by only one of Moody’s, S&P and, if applicable, any Substitute Rating Agency, in each case with a stable or positive outlook. In October 2014, we entered into a series of forward contracts to lock the 10-year treasury rate (“benchmark rate”) on a portion of the 2014 Senior Notes with a notional amount of $1.00 billion in aggregate. For additional details, refer to Note 14,15, “Derivative Instruments and Hedging Activities,”Activities” of this report, and Note 8 “Debt” of the Notes to the condensed consolidated financial statements.Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2018.
The original discountdiscounts on the 2019 Senior Notes and the 2014 Senior Notes amounted to $6.7 million and $4.0 million, respectively, and isare being amortized over the life of the debt. Interest is payable semi-annually on May 1 and November 1 of each year.year for the 2014 Senior Notes and semi-annually on March 15 and September 15 of each year for the 2019 Senior Notes. The debt indenture for the Senior Notes (the “Indenture”) includes covenants that limit our ability to grant liens on itsour facilities and enter into sale and leaseback transactions, subject to certain allowances under which certain sale and leaseback transactions are not restricted.
In November 2017, we repaid $250.0 millioncertain circumstances involving a change of control followed by a downgrade of the rating of a series of Senior Notes by at maturity. least two of Moody’s, S&P and Fitch Inc., unless we have exercised our rights to redeem the Senior Notes of such series, we will be required to make an offer to repurchase all or, at the holder’s option, any part, of each holder’s Senior Notes of that series pursuant to the offer described below (the “Change of Control Offer”). In the Change of Control Offer, we will be required to offer payment in cash equal to 101% of the aggregate principal amount of Senior Notes repurchased plus accrued and unpaid interest, if any, on the Senior Notes repurchased, up to, but not including, the date of repurchase.
As of DecemberMarch 31, 2017,2019, we were in compliance with all of theour covenants under the Indenture associated with the Senior Notes.
Credit Facility (Term Loans and Unfunded Revolving Credit Facility) and Revolving Credit Facility:
In November 2014, we entered into $750.0 million of five-year senior unsecured prepayable term loans and a $500.0 million unfunded revolving credit facility (collectively, the “Credit Facility”).
In November 2017, we entered into a Credit Agreement (the “Credit Agreement”) providing for a $750.0 million five-year unsecured revolving credit facilityRevolving Credit Facility (the “Revolving Credit Facility”), which replaced our prior Credit Facility. Subject to the terms of the Credit Agreement, the Revolving Credit Facility may be increased in an amount up to $250.0 million in the aggregate. As of DecemberIn November 2018, we entered into an Incremental Facility, Extension and Amendment Agreement (the “Amendment”), which amends the Credit Agreement to (a) extend the Maturity Date (the “Maturity Date”) from November 30, 2017, 2017, after2022 to November 30, 2023, (b) increase the total commitment by $250.0 million and (c) effect certain other amendments to the Credit Agreement as set forth in the Amendment. After giving effect to the Amendment, the total commitments under the Credit Agreement are $1.00 billion. During the third quarter of the fiscal year ending June 30, 2019, we made borrowings made onof $900.0 million from the closing date,Revolving Credit Facility as part of the funding for the Orbotech Acquisition, which were paid in full in the same quarter. As of March 31, 2019, we had no outstanding $250.0 million aggregate principal amount of borrowings under the Revolving Credit Facility. The proceeds from the borrowings on the closing date, together with the cash on hand was used to pay in full the remaining term loan balance under the Credit Facility.
We may borrow, repay and reborrow funds under the Revolving Credit Facility until its maturity don November 30, 2022 (the “Maturity Date”),the Maturity Date, at which time such Revolving Credit Facility will terminate, and all outstanding loans under such facility, together with all accrued and unpaid interest, must be repaid. We may prepay outstanding borrowings under the Revolving Credit Facility at any time without a prepayment penalty.
Borrowings under the Revolving Credit Facility will bear interest, at our option, at either: (i) the Alternative Base Rate (“ABR”) plus a spread, which ranges from 0 bps to 75 bps, or (ii) the London Interbank Offered Rate (“LIBOR”) plus a spread, which ranges from 100 bps to 175 bps. The spreads under ABR and LIBOR are subject to adjustment in conjunction with credit rating downgrades or upgrades. We are also obligated to pay an annual commitment fee on the daily undrawn balance of the Revolving Credit Facility, which ranges from 10 bps to 25 bps, subject to an adjustment in conjunction with changes to our credit rating. As of DecemberMarch 31, 2017,2019, we elected to pay interest on the borrowed amount under the Revolving Credit Facility at LIBOR plus a spread of 125 bps, and an annual commitment fee of 1512.5 bps on the daily undrawn balance of the Revolving Credit Facility.

The Revolving Credit Facility requires us to maintain an interest expense coverage ratio as described in the Credit Agreement, on a quarterly basis, covering the trailing four consecutive fiscal quarters of no less than 3.50 to 1.00. In addition, we are required to maintain the maximum leverage ratio as described in the Credit Agreement, on a quarterly basis of 3.00 to 1.00, covering the trailing four consecutive fiscal quarters for each fiscal quarter, which can be increased to 4.00 to 1.00 for a period of time in connection with a material acquisition or a series of material acquisitions. As of March 31, 2019, we elected to increase the maximum allowed leverage ratio to 4.00 to 1.00 following the Orbotech Acquisition.
We were in compliance with the financialall covenants under the Credit Agreement as of DecemberMarch 31, 20172019 (the interest expense coverage ratio was 13.1916.07 to 1.00 and the leverage ratio was 1.591.71 to 1.00). Considering our current liquidity position, short-term financial forecasts and ability to prepay the Revolving Credit Facility, if necessary, we expect to continue to be in compliance with our financial covenants at the end of our fiscal year ending June 30, 2018.2019.
Contractual Obligations:
The following is a schedule summarizing our significant obligations to make future payments under contractual cash obligations as of DecemberMarch 31, 20172019:
Fiscal year ending June 30,Fiscal year ending June 30,
(In thousands)Total 
2018 (2)
 2019 2020 2021 2022 2023 and thereafter OtherTotal 
2019 (2)
 2020 2021 2022 2023 2024 and thereafter Other
Debt obligations(1)
$2,500,000
 $
 $
 $250,000
 $
 $500,000
 $1,750,000
 $
$3,450,000
 $
 $250,000
 $
 $500,000
 $
 $2,700,000
 $
Interest payment associated with all
debt obligations(3)
786,928
 54,762
 109,571
 105,354
 101,113
 90,800
 325,328
 
1,578,428
 50,972
 152,925
 146,942
 136,630
 126,317
 964,642
 
Purchase commitments(4)
480,814
 451,614
 29,049
 47
 104
 
 
 
603,347
 419,998
 181,176
 912
 807
 197
 257
 
Income taxes
payable(5)
70,590
 
 
 
 
 
 
 70,590
136,587
 
 
 
 
 
 
 136,587
Operating leases35,218
 10,063
 7,478
 6,031
 4,561
 2,534
 4,551
 
87,268
 7,360
 26,427
 18,394
 12,845
 7,668
 14,574
 
Cash long-term incentive program(6)
120,188
 12,899
 47,371
 35,249
 24,669
 
 
 
130,141
 24,804
 49,511
 39,736
 16,080
 10
 
 
Pension obligations(7)
23,163
 776
 1,586
 1,534
 1,705
 2,574
 14,988
 
25,092
 371
 1,668
 1,481
 2,194
 1,945
 17,433
 
Executive Deferred
Savings Plan(8)
192,849
 
 
 
 
 
 
 192,849
204,349
 
 
 
 
 
 
 204,349
Transition tax payable(9)
350,492
 45,471
 26,524
 26,524
 26,524
 26,524
 198,925
  300,643
 26,143
 26,143
 26,143
 26,143
 49,018
 147,053
 
Other(10)
7,590
 158
 5,460
 1,529
 332
 111
 
 
Total contractual cash obligations$4,567,832
 $575,743
 $227,039
 $426,268
 $159,008
 $622,543
 $2,293,792
 $263,439
Liability for employee rights upon retirement(10)
56,179
 
 
 
 
 
 
 56,179
Other(11)
6,494
 532
 3,458
 1,381
 883
 240
 
 
Total obligations$6,578,528
 $530,180
 $691,308
 $234,989
 $695,582
 $185,395
 $3,843,959
 $397,115
__________________
(1)Represents $2.25$3.45 billion aggregate principal amount of Senior Notes due from fiscal year 2020 to fiscal year 2035, and $250.0 million aggregate principal amount of borrowings under the Revolving Credit Facility due on November 30, 2022.2035.
(2)For the remaining sixthree months of fiscal year 2018.2019.
(3)The interest payments associated with the Senior Notes obligations included in the table above are based on the principal amount multiplied by the applicable couponinterest rate for each series of Senior Notes. Our future interest payments are subject to change if our then effective credit rating is below investment grade as discussed above. Borrowings under the Revolving Credit Facility will bear interest, at our option, at either: (i) the Alternative Base Rate (“ABR”) plus a spread, or (ii) the London Interbank Offered Rate (“LIBOR”) plus a spread. As of December 31, 2017, we elected to pay interest on the borrowed amount under the Revolving Credit Facility at LIBOR plus a spread of 125 bps and we utilized the existing interest rates to project our estimated interest payments on the borrowed amount under the Revolving Credit Facility through fiscal year 2023. The interest payment under the Revolving Credit Facility for the undrawn balance is payable at 1512.5 bps as a commitment fee based on the daily undrawn balance and we utilized the existing rate for the projected interest payments included in the table above. Our future interest payments for the Revolving Credit Facility is subject to change due to future fluctuations in the LIBOR rates or ABR rates if then elected, as well as any upgrades or downgrades to our then effective credit rating.

(4)Represents an estimate of significant commitments to purchase inventory from our suppliers as well as an estimate of significant purchase commitments associated with goods, services and other goods and servicesassets in the ordinary course of business. Our liability under these purchase commitments is generally restricted to a forecasted time-horizon as mutually agreed upon between the parties. This forecasted time-horizon can vary among different suppliers. Actual expenditures will vary based upon the volume of the transactions and length of contractual service provided. In addition, the amounts paid under these arrangements may be less in the event the arrangements are renegotiated or canceled. Certain agreements provide for potential cancellation penalties.
(5)Represents the estimated income tax payable obligation related to uncertain tax positions as well as related accrued interest. We are unable to make a reasonably reliable estimate of the timing of payments in individual years due to uncertainties in the timing of tax audit outcomes.

(6)Represents the amount committed under our cash long-term incentive program. The expected payment after estimated forfeitures is approximately $97.2$106.0 million.
(7)Represents an estimate of expected benefit payments up to fiscal year 20272028 that was actuarially determined and excludes the minimum cash required to contribute to the plan. As of DecemberMarch 31, 2017,2019, our defined benefit pension plans do not have material required minimum cash contribution obligations.
(8)Represents the amount committed under our non-qualified executive deferred compensation plan. We are unable to make a reasonably reliable estimate of the timing of payments in individual years due to the uncertainties in the timing around participant’s separation and any potential changes that participants may decide to make to the previous distribution elections.
(9)Represents our reasonable estimate of a provisionalthe tax amount for the transition tax liability associated with our deemed repatriation of accumulated foreign earnings as a result from the enactment of the Tax Cuts and Jobs-Act into law on December 22, 2017.
(10)Represents severance payments due upon dismissal of an employee or upon termination of employment in certain other circumstances as required under Israeli law.
(11)Represents amounts committed for accrued dividends payable substantially all of which are for the special cash dividend for the unvested restricted stock units as of the dividend record date as well as quarterly cash dividends for unvested restricted stock units granted with dividend equivalent rights. For additional details, refer to Note 8,9, “Equity, and Long-term Incentive Compensation Plans and Non-Controlling Interest,” to the condensed consolidated financial statements.
We have adopted a cash-based long-term incentive (“Cash LTI”) program for many of our employees as part of our employee compensation program. Cash LTI awards issued to employees under the Cash Long-Term Incentive Plan (“Cash LTI Plan”) generally vest in three or four equal installments, with one-third or one-fourth ofinstallments. For additional details, refer to Note 9, “Equity, Long-term Incentive Compensation Plans and Non-Controlling Interest,” to the aggregate amount of the Cash LTI award vesting on each yearly anniversary of the grant date over a three or four-year period. In order to receive payments under the Cash LTI Plan, participants must remain employed by us as of the applicable award vesting date.condensed consolidated financial statements.
We have agreements with financial institutions to sell certain of our trade receivables and promissory notes from customers without recourse. In addition, we periodically sell certain letters of credit (“LCs”), without recourse, received from customers in payment for goods and services.
The following table shows total receivables sold under factoring agreements and proceeds from sales of LCs for the indicated periods:
Three months ended
December 31,
 Six months ended
December 31,
Three months ended
March 31,
 Nine months ended
March 31,
(In thousands)2017 2016 2017 20162019 2018 2018 2017
Receivables sold under factoring agreements$47,232
 $28,242
 $79,133
 $84,975
$48,243
 $69,390
 $149,597
 $148,523
Proceeds from sales of LCs$
 $9,740
 $5,571
 $13,148
$40,303
 $
 $59,534
 $5,571
Factoring and LC fees for the sale of certain trade receivables were recorded in other expense (income), net and were not material for the periods presented.
We maintain guarantee arrangements available through various financial institutions for up to $21.8$45.1 million, of which $16.0$38.7 million had been issued as of DecemberMarch 31, 2017,2019, primarily to fund guarantees to customs authorities for value-added tax (“VAT”)VAT and other operating requirements of our subsidiaries in Europe, Israel, and Asia.

We provide standard warranty coverage on our systems for 40 hours per week for 12 months, providing labor and parts necessary to repair the systems during the warranty period. We account for the estimated warranty cost as a charge to costs of revenues when revenue is recognized. The estimated warranty cost is based on historical product performance and field expenses. The actual product performance and/or field expense profiles may differ, and in those cases we adjust our warranty accruals accordingly. The difference between the estimated and actual warranty costs tends to be larger for new product introductions as there is limited historical product performance to estimate warranty expense; our warranty charge estimates for more mature products with longer product performance histories tend to be more stable. Non-standard warranty coverage generally includes services incremental to the standard 40 hours per week coverage for 12 months. See Note 13, “Commitments and Contingencies,” to the condensed consolidated financial statements for additional details.
Working Capital:
Working capital was $3.19$2.74 billion as of DecemberMarch 31, 2017,2019, which is an increasea decrease of $88.5$593.0 million compared to our working capital of $3.10$3.33 billion as of June 30, 2017.2018. As of DecemberMarch 31, 2017,2019, our principal sources of liquidity consisted of $2.76$1.90 billion of cash, cash equivalents and marketable securities. Our liquidity ismay be affected by many factors, some of which are based on the normal ongoing operations of the business, spending for business acquisitions, and others of which relate toother factors such as uncertainty in the uncertainties of global and regional economies and the semiconductor and the semiconductor equipment industries. Although cash requirements will fluctuate based on the timing and extent of these factors, we believe that cash generated from operations, together with the liquidity provided by existing cash and cash equivalents balances and our $750.0 million$1.00 billion Revolving Credit Facility, will be sufficient to satisfy our liquidity requirements associated with working capital needs, capital expenditures, cash dividends, stock repurchases and other contractual obligations, including repayment of outstanding debt, for at least the next 12 months.
Our credit ratings as of DecemberMarch 31, 20172019 are summarized below:
Rating AgencyRating
FitchBBB+
Moody’sBaa2Baa1
Standard & Poor’sBBB

Factors that can affect our credit ratings include changes in our operating performance, the economic environment, conditions in the semiconductor and semiconductor equipment industries, our financial position, material acquisitions and changes in our business strategy.
Off-Balance Sheet Arrangements
Under our foreign currency risk management strategy,As of March 31, 2019, we utilize derivative instrumentsdid not have any off-balance sheet arrangements, as defined in Item 303(a)(4)(ii) of SEC Regulation S-K, that have or are reasonably likely to protect our earnings and cash flows from unanticipated fluctuations in earnings and cash flows caused by volatility in currency exchange rates. This financial exposure is monitored and managed as an integral part of our overall risk management program which focuses on the unpredictability of financial markets and seeks to reduce the potentially adverse effects that the volatility of these markets may have a current or future effect on our operating results. We continue our policyfinancial position, changes in financial condition, revenues and expenses, results of hedging our current and forecasted foreign currency exposures with hedging instruments having tenors of upoperations, liquidity, capital expenditures, or capital resources that are material to 18 months (seeinvestors. Refer to Note 14 “Derivative Instruments“Commitments and Hedging Activities,”contingencies” to the condensed consolidated financial statements for additional details). Our outstanding hedge contracts, with maximum remaining maturities of approximately 13 months as of December 31, 2017 and ten months as of June 30, 2017, respectively, were as follows:
(In thousands)As of
December 31, 2017
 As of
June 30, 2017
Cash flow hedge contracts   
Purchase$25,923
 $19,305
Sell$85,466
 $128,672
Other foreign currency hedge contracts   
Purchase$144,442
 $165,563
Sell$155,260
 $118,504
information related to indemnification obligations.

In October 2014, in anticipation of the issuance of the Senior Notes, we entered into a series of forward contracts (“Rate Lock Agreements”) to lock the benchmark rate on a portion of the Senior Notes. The objective of the Rate Lock Agreements was to hedge the risk associated with the variability in interest rates due to the changes in the benchmark rate leading up to the closing of the intended financing, on the notional amount being hedged. The Rate Lock Agreements had a notional amount of $1.00 billion in aggregate which matured in the second quarter of the fiscal year ended June 30, 2015. The Rate Lock Agreements were terminated on the date of pricing of the $1.25 billion of 4.650% Senior Notes due in 2024 and we recorded the fair value of $7.5 million as a gain within accumulated other comprehensive income (loss) as of December 31, 2014. We recognized $0.2 million for each of the three months ended December 31, 2017 and 2016 and $0.4 million each of the six months ended December 31, 2017 and 2016 for the amortization of the gain recognized in accumulated other comprehensive income (loss), which amount reduced the interest expense. As of December 31, 2017, the unamortized portion of the fair value of the forward contracts for the rate lock agreements was $5.2 million.
Indemnification Obligations. Subject to certain limitations, we are obligated to indemnify our current and former directors, officers and employees with respect to certain litigation matters and investigations that arise in connection with their service to us. These obligations arise under the terms of our certificate of incorporation, our bylaws, applicable contracts, and Delaware and California law. The obligation to indemnify generally means that we are required to pay or reimburse the individuals’ reasonable legal expenses and possibly damages and other liabilities incurred in connection with these matters. For example, we have paid or reimbursed legal expenses incurred in connection with the investigation of our historical stock option practices and the related litigation and government inquiries by a number of our current and former directors, officers and employees. Although the maximum potential amount of future payments we could be required to make under the indemnification obligations generally described in this paragraph is theoretically unlimited, we believe the fair value of this liability, to the extent estimable, is appropriately considered within the reserve we have established for currently pending legal proceedings.
We are a party to a variety of agreements pursuant to which we may be obligated to indemnify the other party with respect to certain matters. Typically, these obligations arise in connection with contracts and license agreements or the sale of assets, under which we customarily agree to hold the other party harmless against losses arising from, or provide customers with other remedies to protect against, bodily injury or damage to personal property caused by our products, non-compliance with our product performance specifications, infringement by our products of third-party intellectual property rights and a breach of warranties, representations and covenants related to matters such as title to assets sold, validity of certain intellectual property rights, non-infringement of third-party rights, and certain income tax-related matters. In each of these circumstances, payment by us is typically subject to the other party making a claim to and cooperating with us pursuant to the procedures specified in the particular contract. This usually allows us to challenge the other party’s claims or, in case of breach of intellectual property representations or covenants, to control the defense or settlement of any third-party claims brought against the other party. Further, our obligations under these agreements may be limited in terms of amounts, activity (typically at our option to replace or correct the products or terminate the agreement with a refund to the other party), and duration. In some instances, we may have recourse against third parties and/or insurance covering certain payments made by us.
In addition, we may in limited circumstances enter into agreements that contain customer-specific commitments on pricing, tool reliability, spare parts stocking levels, service response time and other commitments. Furthermore, we may give these customers limited audit or inspection rights to enable them to confirm that we are complying with these commitments. If a customer elects to exercise its audit or inspection rights, we may be required to expend significant resources to support the audit or inspection, as well as to defend or settle any dispute with a customer that could potentially arise out of such audit or inspection. To date, we have made no significant accruals in our condensed consolidated financial statements for this contingency. While we have not in the past incurred significant expenses for resolving disputes regarding these types of commitments, we cannot make any assurance that we will not incur any such liabilities in the future.
It is not possible to predict the maximum potential amount of future payments under these or similar agreements due to the conditional nature of our obligations and the unique facts and circumstances involved in each particular agreement. Historically, payments made by us under these agreements have not had a material effect on our business, financial condition, results of operations or cash flows.

ITEM 3.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
We are exposed to financial market risks, including changes in interest rates, foreign currency exchange rates and marketable equity security prices. To mitigate these risks, we utilize derivative financial instruments, such as foreign currency hedges. All of the potential changes noted below are based on sensitivity analysesanalysis performed on our financial position as of DecemberMarch 31, 20172019. Actual results may differ materially.
As of DecemberMarch 31, 2017,2019, we had an investment portfolio of fixed income securities of $1.68$0.81 billion. These securities, as with all fixed income instruments, are subject to interest rate risk and will decline in value if market interest rates increase. If market interest rates were to increase immediately and uniformly by 100 bps from levels as of DecemberMarch 31, 2017,2019, the fair value of the portfolio would have declined by $20.2$5.1 million.
In March 2019 and November 2014, we issued $1.20 billion and $2.50 billion, respectively, (each, a “2019 Senior Notes”, a “2014 Senior Notes”, and collectively the “Senior Notes”) aggregate principal amount of fixed rate senior, unsecured long-term notes (collectively referred to as “Senior Notes”).notes. The fair market value of long-term fixed interest rate notes isare subject to interest rate risk. Generally, the fair market value of fixed interest rate notes will increase as interest rates fall and decrease as interest rates rise. As of DecemberMarch 31, 2017,2019, the fair value and the book value of our Senior Notes were $2.41$3.61 billion and $2.25$3.45 billion, respectively, due in various fiscal years ranging from 2020 to 2035.2049. Additionally, the interest expense for the 2014 Senior Notes is subject to interest rate adjustments following a downgrade of our credit ratings below investment grade by the credit rating agencies. Following a rating change below investment grade, the stated interest rate for each series of the 2014 Senior Notes may increase between 25 bps to 100 bps based on the adjusted credit rating. Refer to Note 7,8, “Debt,” to the condensed consolidated financial statements in Part I, Item 1 and Management’s Discussion and Analysis of Financial Condition and Results of Operations, “Liquidity and Capital Resources,” in Part I, Item 2 for additional details. Factors that can affect our credit ratings include changes in our operating performance, the economic environment, conditions in the semiconductor and semiconductor equipment industries, our financial position, and changes in our business strategy. As of DecemberMarch 31, 2017,2019, if our credit rating was downgraded below investment grade by Moody’s and S&P, the maximum potential increase to our annual interest expense on the 2014 Senior Notes, considering a 200 bps increase to the stated interest rate for each series of our 2014 Senior Notes, is estimated to be approximately $45.0$42.9 million. Unlike the 2014 Senior Notes, the interest rate for each series of the 2019 Senior Notes is not be subject to such adjustments.

In November 2017, we entered into a Credit Agreement (the “Credit Agreement”) for a $750.0 million five-year unsecured revolving credit facilityRevolving Credit Facility (the “Revolving Credit Facility”), which replaced our prior Credit Agreement. Subject to the terms of the Credit Agreement, the Revolving Credit Facility may be increased in an amount up to $250.0 million in the aggregate. As of December 31, 2017 afterIn November 2018, we entered into an Incremental Facility, Extension and Amendment Agreement (the “Amendment”), which amends the Credit Agreement to (a) extend the Maturity Date (the “Maturity Date”) from November 30, 2022 to November 30, 2023, (b) increase the total commitment by $250.0 million and (c) effect certain other amendments to the Credit Agreement as set forth in the Amendment. After giving effect to the borrowings made onAmendment, the closing date, we had outstanding $250.0 million aggregate principal amount of borrowingstotal commitments under the Revolving Credit Facility. We elected to pay interest on the borrowed amount under the Revolving Credit Facility at the London Interbank Offered Rate (“LIBOR”) plus a spread. The spread ranges from 100 bps to 175 bps based on the adjusted credit rating. The fair valueAgreement are $1.00 billion. As of the borrowings under the Revolving Credit Facility isMarch 31, 2019, we do not have any outstanding floating rate debts that are subject to interest rate risk only to the extent of the fixed spread portion of the interest rates which does not fluctuate with changean increase in interest rates. We are also obligated to pay an annual commitment fee of 1512.5 bps on the daily undrawn balance of the Revolving Credit Facility which is also subject to an adjustment in conjunction with our credit rating downgrades or upgrades. The annual commitment fee ranges from 10 bps to 25 bps on the daily undrawn balance of the Revolving Credit Facility, depending upon the then effective credit rating. As of DecemberMarch 31, 2017, if LIBOR-based interest rates increased by 100 bps, the change would increase our annual interest expense annually by approximately $2.4 million as it relates to our borrowings under the Revolving Credit Facility. Additionally, as of December 31, 2017,2019, if our credit ratings were downgraded to be below investment grade, the maximum potential increase to our annual interest expensecommitment fee for the Revolving Credit Facility, using the highest range of the ranges discussed above, is estimated to be approximately $1.8$0.8 million.

See Note 4,5, “Marketable Securities,” to the condensed consolidated financial statements in Part I, Item 1; Management’s Discussion and Analysis of Financial Condition and Results of Operations, “Liquidity and Capital Resources,” in Part I, Item 2; and Risk Factors in Part II, Item 1A of this Quarterly Report on Form 10-Q for a description of recent market events that may affect the value of the investments in our portfolio that we held as of DecemberMarch 31, 20172019.
As of DecemberMarch 31, 2017,2019, we had net forward and option contracts to sell $70.4$156.0 million in foreign currency in order to hedge certain currency exposures (see Note 14,15, “Derivative Instruments and Hedging Activities,” to the condensed consolidated financial statements for additional details). If we had entered into these contracts on DecemberMarch 31, 2017,2019, the U.S. dollar equivalent would have been $66.3$153.5 million. A 10% adverse move in all currency exchange rates affecting the contracts would decrease the fair value of the contracts by $29.6$43.2 million. However, if this occurred, the fair value of the underlying exposures hedged by the contracts would increase by a similar amount. Accordingly, we believe that, as a result of the hedging of certain of our foreign currency exposure, changes in most relevant foreign currency exchange rates should have no material impact on our incomeresults of operations or cash flows.


ITEM 4CONTROLS AND PROCEDURES
Evaluation of Disclosure Controls and Procedures and Related CEO and CFO Certifications
Evaluation of Disclosure Controls and Procedures
The CompanyWe conducted an evaluation of the effectiveness of the design and operation of itsour disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) (“Disclosure Controls”) as of the end of the period covered by this Quarterly Report on Form 10-Q (this “Report”) required by Exchange Act Rules 13a-15(b) or 15d-15(b). The controls evaluation was conducted under the supervision and with the participation of the Company’sour management, including the Company’sour Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”). Based on this evaluation, the CEO and CFO have concluded that as of the end of the period covered by this Report the Company’sour Disclosure Controls were effective at a reasonable assurance level.
Attached as exhibits to this Report are certifications of the CEO and CFO, which are required in accordance with Rule 13a-14 of the Exchange Act. This Controls and Procedures section includes the information concerning the controls evaluation referred to in the certifications, and it should be read in conjunction with the certifications for a more complete understanding of the topics presented.
Definition of Disclosure Controls
Disclosure Controls are controls and procedures designed to reasonably assure that information required to be disclosed in the Company’sour reports filed under the Exchange Act, such as this Report, is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Disclosure Controls are also designed to reasonably assure that such information is accumulated and communicated to the Company’sour management, including the CEO and CFO, as appropriate to allow timely decisions regarding required disclosure. The Company’sOur Disclosure Controls include components of itsour internal control over financial reporting, which consists of control processes designed to provide reasonable assurance regarding the reliability of itsour financial reporting and the preparation of financial statements in accordance with generally accepted accounting principles in the United States. To the extent that components of the Company’sour internal control over financial reporting are included within itsour Disclosure Controls, they are included in the scope of the Company’sour annual controls evaluation.
Limitations on the Effectiveness of Controls
The Company’sOur management, including the CEO and CFO, does not expect that the Company’sour Disclosure Controls or internal control over financial reporting will prevent all error and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control system’s objectives will be met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the Company have been detected. These inherent limitations include the realities that judgments in decision making can be faulty and that breakdowns can occur because of simple error or mistake. Controls can also be circumvented by the individual acts of some persons, by collusion of two or more people, or by management override of the controls. The design of any system of controls is based in part on certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving itsour stated goals under all potential future conditions. Over time, controls may become inadequate because of changes in conditions or deterioration in the degree of compliance with policies or procedures. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.
Changes in Internal Control over Financial Reporting
There were noDuring the three months ended March 31, 2019, we made changes into our internal controls over financial reporting due to the acquisition of Orbotech. These changes include enhancements to our internal controls over business combinations and additional controls over the completeness and accuracy of financial statement consolidation.
Management intends to exclude Orbotech from its assessment of the Company’s internal control over financial reporting for fiscal 2019. This exclusion is consistent with guidance issued by the SEC that an assessment of a recently acquired business may be omitted from Management’s report on internal control over financial reporting in the fiscal year of acquisition.
Subject to the foregoing, there were no other material changes in our internal control over financial reporting identified in connection with the evaluation required by Rule 13a-15(d) and 15d-15(d) of the Exchange Act that occurred during the three months ended December 31, 2017most recent fiscal quarter covered by this Quarterly Report on Form 10-Q that havehas materially affected, or areis reasonably likely to materially affect, the Company’sour internal control over financial reporting.


PART II. OTHER INFORMATION
ITEM 1.LEGAL PROCEEDINGS
The information set forth above under Note 12,13, “Litigation and Other Legal Matters,” to the condensed consolidated financial statements in Item 1 of Part 1 is incorporated herein by reference.
ITEM 1A.RISK FACTORS    
A description of factors that could materially affect our business, financial condition or operating results is provided below.
Risks Associated with Our Industry
Ongoing changes in the technology industry, as well as the semiconductor industry in particular, could expose our business to significant risks.
The semiconductor equipment industry and other industries that we serve, including the semiconductor, flat panel display and printed circuit board industries, are constantly developing and changing over time. Many of the risks associated with operating in these industries are comparable to the risks faced by all technology companies, such as the uncertainty of future growth rates in the industries that we serve, pricing trends in the end-markets for consumer electronics and other products (which place a growing emphasis on our customers’ cost of ownership), changes in our customers’ capital spending patterns and, in general, an environment of constant change and development, including decreasing product and component dimensions; use of new materials; and increasingly complex device structures, applications and process steps. If we fail to appropriately adjust our cost structure and operations to adapt to any of these trends, or, with respect to technological advances, if we do not timely develop new technologies and products that successfully anticipate and address these changes, we could experience a material adverse effect on our business, financial condition and operating results.
In addition, we face a number of risks specific to ongoing changes in the semiconductor industry, as thea significant majority of our sales are madeour process control and yield management products sold to semiconductor manufacturers. Some of the trends that our management monitors in operating our business include the following:
the potential for reversal of the long-term historical trend of declining cost per transistor with each new generation of technological advancement within the semiconductor industry, and the adverse impact that such reversal may have upon our business;
the increasing cost of building and operating fabrication facilities and the impact of such increases on our customers’ capital equipment investment decisions;
differing market growth rates and capital requirements for different applications, such as memory, logic and foundry;
lower level of process control adoption by our memory customers compared to our foundry and logic customers;
our customers’ reuse of existing and installed products, which may decrease their need to purchase new products or solutions at more advanced technology nodes;
the emergence of disruptive technologies that change the prevailing semiconductor manufacturing processes (or the economics associated with semiconductor manufacturing) and, as a result, also impact the inspection and metrology requirements associated with such processes;
the higher design costs for the most advanced integrated circuits, which could economically constrain leading-edge manufacturing technology customers to focus their resources on only the large, technologically advanced products and applications;
the possible introduction of integrated products by our larger competitors that offer inspection and metrology functionality in addition to managing other semiconductor manufacturing processes;
changes in semiconductor manufacturing processes that are extremely costly for our customers to implement and, accordingly, our customers could reduce their available budgets for process control equipment by reducing inspection and metrology sampling rates for certain technologies;
the bifurcation of the semiconductor manufacturing industry into (a) leading edge manufacturers driving continued research and development into next-generation products and technologies and (b) other manufacturers that are content with existing (including previous generation) products and technologies;
the ever escalating cost of next-generation product development, which may result in joint development programs between us and our customers or government entities to help fund such programs that could restrict our control of, ownership of and profitability from the products and technologies developed through those programs; and
the entry by some semiconductor manufacturers into collaboration or sharing arrangements for capacity, cost or risk with other manufacturers, as well as increased outsourcing of their manufacturing activities, and greater focus only on specific markets or applications, whether in response to adverse market conditions or other market pressures.

Any of the changes described above may negatively affect our customers’ rate of investment in the capital equipment that we produce, which could result in downward pressure on our prices, customer orders, revenues and gross margins. If we do not successfully manage the risks resulting from any of these or other potential changes in our industries, our business, financial condition and operating results could be adversely impacted.
We are exposed to risks associated with a highly concentrated customer base.
Our customer base, particularly in the semiconductor industry, historically has been highly concentrated due to corporate consolidation, acquisitions and business closures. In this environment, orders from a relatively limited number of manufacturers have accounted for, and are expected to continue to account for, a substantial portion of our sales. This increasing concentration exposes our business, financial condition and operating results to a number of risks, including the following:
The mix and type of customers, and sales to any single customer, may vary significantly from quarter to quarter and from year to year, which exposes our business and operating results to increased volatility tied to individual customers.
New orders from our foundry customers in the past several years have constituted a significant portion of our total orders. This concentration increases the impact that future business or technology changes within the foundry industry may have on our business, financial condition and operating results.
In a highly concentrated business environment, if a particular customer does not place an order, or if they delay or cancel orders, we may not be able to replace the business. Furthermore, because our process control and yield management products are configured to each customer’s specifications, any changes, delays or cancellations of orders may result in significant, non-recoverable costs.
As a result of this consolidation, the customers that survive the consolidation represent a greater portion of our sales and, consequently, have greater commercial negotiating leverage. Many of our large customers have more aggressive policies regarding engaging alternative, second-source suppliers for the products we offer and, in addition, may seek and, on occasion, receive pricing, payment, intellectual property-related or other commercial terms that may have an adverse impact on our business. Any of these changes could negatively impact our prices, customer orders, revenues and gross margins.
Certain customers have undergone significant ownership changes, created alliances with other companies, experienced management changes or have outsourced manufacturing activities, any of which may result in additional complexities in managing customer relationships and transactions. Any future change in ownership or management of our existing customers may result in similar challenges, including the possibility of the successor entity or new management deciding to select a competitor’s products.
The highly concentrated business environment also increases our exposure to risks related to the financial condition of each of our customers. For example, as a result of the challenging economic environment during fiscal year 2009, we were (and in some cases continue to be) exposed to additional risks related to the continued financial viability of certain of our customers. To the extent our customers experience liquidity issues in the future, we may be required to incur additional bad debt expense with respect to receivables owed to us by those customers. In addition, customers with liquidity issues may be forced to reduce purchases of our equipment, delay deliveries of our products, discontinue operations or may be acquired by one of our customers, and in either case such event would have the effect of further consolidating our customer base.
Semiconductor manufacturers generally must commit significant resources to qualify, install and integrate process control and yield management equipment into a semiconductor production line. We believe that once a semiconductor manufacturer selects a particular supplier’s process control and yield management equipment, the manufacturer generally relies upon that equipment for that specific production line application for an extended period of time. Accordingly, we expect it to be more difficult to sell our products to a given customer for that specific production line application and other similar production line applications if that customer initially selects a competitor’s equipment. Similarly, we expect it to be challenging for a competitor to sell its products to a given customer for a specific production line application if that customer initially selects our equipment.
Prices differ among the products we offer for different applications due to differences in features offered or manufacturing costs. If there is a shift in demand by our customers from our higher-priced to lower-priced products, our gross margin and revenue would decrease. In addition, when products are initially introduced, they tend to have higher costs because of initial development costs and lower production volumes relative to the previous product generation, which can impact gross margin.
Any of these factors could have a material adverse effect on our business, financial condition and operating results.

TheWe operate in industries that have historically been cyclical, including the semiconductor equipment industry has been cyclical.industry. The purchasing decisions of our customers are highly dependent on the economies of both the local markets in which they are located and the semiconductorcondition of the industry worldwide. If we fail to respond to industry cycles, our business could be seriously harmed.
The timing, length and severity of the up-and-down cycles in the semiconductor equipment industryindustries in which we serve are difficult to predict. The historically cyclical nature of the primarysemiconductor industry in which we primarily operate is largely a function of our customers’ capital spending patterns and need for expanded manufacturing capacity, which in turn are affected by factors such as capacity utilization, consumer demand for products, inventory levels and our customers’ access to capital. Cyclicality affects our ability to accurately predict future revenue and, in some cases, future expense levels. During down cycles in our industry, the financial results of our customers may be negatively impacted, which could result not only in a decrease in, or cancellation or delay of, orders (which are generally subject to cancellation or delay by the customer with limited or no penalty) but also a weakening of their financial condition that could impair their ability to pay for our products or our ability to recognize revenue from certain customers. Our ability to recognize revenue from a particular customer may also be negatively impacted by the customer’s funding status, which could be weakened not only by adverse business conditions or inaccessibility to capital markets for any number of macroeconomic or company-specific reasons, but also by funding limitations imposed by the customer’s unique organizational structure. Any of these factors could negatively impact our business, operating results and financial condition.
When cyclical fluctuations result in lower than expected revenue levels, operating results may be adversely affected and cost reduction measures may be necessary for us to remain competitive and financially sound. During periods of declining revenues, we must be in a position to adjust our cost and expense structure to prevailing market conditions and to continue to motivate and retain our key employees. If we fail to respond, or if our attempts to respond fail to accomplish our intended results, then our business could be seriously harmed. Furthermore, any workforce reductions and cost reduction actions that we adopt in response to down cycles may result in additional restructuring charges, disruptions in our operations and loss of key personnel. In addition, during periods of rapid growth, we must be able to increase manufacturing capacity and personnel to meet customer demand. We can provide no assurance that these objectives can be met in a timely manner in response to industry cycles. Each of these factors could adversely impact our operating results and financial condition.
In addition, our management typically provides quarterly forecasts for certain financial metrics, which, when made, are based on business and operational forecasts that are believed to be reasonable at the time. However, largely due to the historical cyclicality of our business and the industries in which we operate, and the fact that business conditions in our industries can change very rapidly as part of these cycles, our actual results may vary (and have varied in the past) from forecasted results. These variations can occur for any number of reasons, including, but not limited to, unexpected changes in the volume or timing of customer orders, product shipments or product acceptance; an inability to adjust our operations rapidly enough to adapt to changing business conditions; or a different than anticipated effective tax rate. The impact on our business of delays or cancellations of customer orders may be exacerbated by the short lead times that our customers expect between order placement and product shipment. This is because order delays and cancellations may lead not only to lower revenues, but also, due to the advance work we must do in anticipation of receiving a product order to meet the expected lead times, to significant inventory write-offs and manufacturing inefficiencies that decrease our gross margin. Any of these factors could materially and adversely affect our financial results for a particular quarter and could cause those results to differ materially from financial forecasts we have previously provided. We provide these forecasts with the intent of giving investors and analysts a better understanding of management’s expectations for the future, but those reviewing such forecasts must recognize that such forecasts are comprised of, and are themselves, forward-looking statements subject to the risks and uncertainties described in this Item 1A and elsewhere in this report and in our other public filings and public statements. If our operating or financial results for a particular period differ from our forecasts or the expectations of investment analysts, or if we revise our forecasts, the market price of our common stock could decline.

Risks Related to Our Business Model and Capital Structure
If we do not develop and introduce new products and technologies in a timely manner in response to changing market conditions or customer requirements, our business could be seriously harmed.
Success in the industries in which we serve, including the semiconductor, equipment industryflat panel display and printed circuit board industries depends, in part, on continual improvement of existing technologies and rapid innovation of new solutions. The primary driver of technology advancement in the semiconductor industry has been to shrink the lithography that prints the circuit design on semiconductor chips. That driver appears to be slowing, which may cause semiconductor manufacturers to delay investments in equipment, investigate more complex device architectures, use new materials and develop innovative fabrication processes. These and other evolving customer plans and needs require us to respond with continued development programs and cut back or discontinue older programs, which may no longer have industry-wide support. Technical innovations are inherently complex and require long development cycles and appropriate staffing of highly qualified employees. Our competitive advantage and future business success depend on our ability to accurately predict evolving industry standards, develop and introduce new products and solutions that successfully address changing customer needs, win market acceptance of these new products and solutions, and manufacture these new products in a timely and cost-effective manner. Our failure to accurately predict evolving industry standards and develop as well as offer competitive technology solutions in a timely manner with cost-effective products could result in loss of market share, unanticipated costs, and inventory obsolescence, which would adversely impact our business, operating results and financial condition.
We must continue to make significant investments in research and development in order to enhance the performance, features and functionality of our products, to keep pace with competitive products and to satisfy customer demands. Substantial research and development costs typically are incurred before we confirm the technical feasibility and commercial viability of a new product, and not all development activities result in commercially viable products. There can be no assurance that revenues from future products or product enhancements will be sufficient to recover the development costs associated with such products or enhancements. In addition, we cannot be sure that these products or enhancements will receive market acceptance or that we will be able to sell these products at prices that are favorable to us. Our business will be seriously harmed if we are unable to sell our products at favorable prices or if the market in which we operate does not accept our products.
In addition, the complexity of our products exposes us to other risks. We regularly recognize revenue from a sale upon shipment of the applicable product to the customer (even before receiving the customer’s formal acceptance of that product) in certain situations, including sales of products for which installation is considered perfunctory, transactions in which the product is sold to an independent distributor and we have no installation obligations, and sales of products where we have previously delivered the same product to the same customer location and that prior delivery has been accepted. However, our products are very technologically complex and rely on the interconnection of numerous subcomponents (all of which must perform to their respective specifications), so it is conceivable that a product for which we recognize revenue upon shipment may ultimately fail to meet the overall product’s required specifications. In such a situation, the customer may be entitled to certain remedies, which could materially and adversely affect our operating results for various periods and, as a result, our stock price.

We derive a substantial percentage of our revenues from sales of inspection products. As a result, any delay or reduction of sales of these products could have a material adverse effect on our business, financial condition and operating results. The continued customer demand for these products and the development, introduction and market acceptance of new products and technologies are critical to our future success.
Our success is dependent in part on our technology and other proprietary rights. If we are unable to maintain our lead or protect our proprietary technology, we may lose valuable assets.
Our success is dependent in part on our technology and other proprietary rights. We own various United States and international patents and have additional pending patent applications relating to some of our products and technologies. The process of seeking patent protection is lengthy and expensive, and we cannot be certain that pending or future applications will actually result in issued patents or that issued patents will be of sufficient scope or strength to provide meaningful protection or commercial advantage to us. Other companies and individuals, including our larger competitors, may develop technologies and obtain patents relating to our business that are similar or superior to our technology or may design around the patents we own, which may adversely affectingaffect our business. In addition, we at times engage in collaborative technology development efforts with our customers and suppliers, and these collaborations may constitute a key component of certain of our ongoing technology and product research and development projects. The termination of any such collaboration, or delays caused by disputes or other unanticipated challenges that may arise in connection with any such collaboration, could significantly impair our research and development efforts, which could have a material adverse impact on our business and operations.

We also maintain trademarks on certain of our products and services and claim copyright protection for certain proprietary software and documentation. However, we can give no assurance that our trademarks and copyrights will be upheld or successfully deter infringement by third parties.
While patent, copyright and trademark protection for our intellectual property is important, we believe our future success in highly dynamic markets is most dependent upon the technical competence and creative skills of our personnel. We attempt to protect our trade secrets and other proprietary information through confidentiality and other agreements with our customers, suppliers, employees and consultants and through other security measures. We also maintain exclusive and non-exclusive licenses with third parties for strategic technology used in certain products. However, these employees, consultants and third parties may breach these agreements, and we may not have adequate remedies for wrongdoing. In addition, the laws of certain territories in which we develop, manufacture or sell our products may not protect our intellectual property rights to the same extent as do the laws of the United States. In any event, the extent to which we can protect our trade secrets through the use of confidentiality agreements is limited, and our success will depend to a significant extent on our ability to innovate ahead of our competitors.
Our future performance depends, in part, upon our ability to continue to compete successfully worldwide.
Our industry includes large manufacturers with substantial resources to support customers worldwide. Some of our competitors are diversified companies with greater financial resources and more extensive research, engineering, manufacturing, marketing, and customer service and support capabilities than we possess. We face competition from companies whose strategy is to provide a broad array of products and services, some of which compete with the products and services that we offer. These competitors may bundle their products in a manner that may discourage customers from purchasing our products, including pricing such competitive tools significantly below our product offerings. In addition, we face competition from smaller emerging semiconductor equipment companies whose strategy is to provide a portion of the products and services that we offer, using innovative technology to sell products into specialized markets. The strength of our competitive positions in many of our existing markets is largely due to our leading technology, which is the result of continuing significant investments in product research and development. However, we may enter new markets, whether through acquisitions or new internal product development, in which competition is based primarily on product pricing, not technological superiority. Further, some new growth markets that emerge may not require leading technologies. Loss of competitive position in any of the markets we serve, or an inability to sell our products on favorable commercial terms in new markets we may enter, could negatively affect our prices, customer orders, revenues, gross margins and market share, any of which would negatively affect our operating results and financial condition.
Our business would be harmed if we do not receive parts sufficient in number and performance to meet our production requirements and product specifications in a timely and cost-effective manner.
We use a wide range of materials in the production of our products, including custom electronic and mechanical components, and we use numerous suppliers to supply these materials. We generally do not have guaranteed supply arrangements with our suppliers. Because of the variability and uniqueness of customers’ orders, we do not maintain an extensive inventory of materials for manufacturing. Through our business interruption planning, we seek to minimize the risk of production and service interruptions and/or shortages of key parts by, among other things, monitoring the financial stability of key suppliers, identifying (but not necessarily qualifying) possible alternative suppliers and maintaining appropriate inventories of key parts. Although we make reasonable efforts to ensure that parts are available from multiple suppliers, certain key parts are available only from a single supplier or a limited group of suppliers. Also, key parts we obtain from some of our suppliers incorporate the suppliers’ proprietary intellectual property; in those cases, we are increasingly reliant on third parties for high-performance, high-technology components, which reduces the amount of control we have over the availability and protection of the technology and intellectual property that is used in our products. In addition, if certain of our key suppliers experience liquidity issues and are forced to discontinue operations, which is a heightened risk especially during economic downturns, it could affect their ability to deliver parts and could result in delays for our products. Similarly, especially with respect to suppliers of high-technology components, our suppliers themselves have increasingly complex supply chains, and delays or disruptions at any stage of their supply chains may prevent us from obtaining parts in a timely manner and result in delays for our products. Our operating results and business may be adversely impacted if we are unable to obtain parts to meet our production requirements and product specifications, or if we are only able to do so on unfavorable terms. Furthermore, a supplier may discontinue production of a particular part for any number of reasons, including the supplier’s financial condition or business operational decisions, which would require us to purchase, in a single transaction, a large number of such discontinued parts in order to ensure that a continuous supply of such parts remains available to our customers. Such “end-of-life” parts purchases could result in significant expenditures by us in a particular period, and ultimately any unused parts may result in a significant inventory write-off, either of which could have an adverse impact on our financial condition and results of operations for the applicable periods.

If we fail to operate our business in accordance with our business plan, our operating results, business and stock price may be significantly and adversely impacted.
We attempt to operate our business in accordance with a business plan that is established annually, revised frequently (generally quarterly), and reviewed by management even more frequently (at least monthly). Our business plan is developed based on a number of factors, many of which require estimates and assumptions, such as our expectations of the economic environment, future business levels, our customers’ willingness and ability to place orders, lead-times, and future revenue and cash flow. Our budgeted operating expenses, for example, are based in part on our future revenue expectations. However, our ability to achieve our anticipated revenue levels is a function of numerous factors, including the volatile and historically cyclical nature of our primary industry, customer order cancellations, macroeconomic changes, operational matters regarding particular agreements, our ability to manage customer deliveries, the availability of resources for the installation of our products, delays or accelerations by customers in taking deliveries and the acceptance of our products (for products where customer acceptance is required before we can recognize revenue from such sales), our ability to operate our business and sales processes effectively, and a number of the other risk factors set forth in this Item 1A.
Because our expenses are in most cases relatively fixed in the short term, any revenue shortfall below expectations could have an immediate and significant adverse effect on our operating results. Similarly, if we fail to manage our expenses effectively or otherwise fail to maintain rigorous cost controls, we could experience greater than anticipated expenses during an operating period, which would also negatively affect our results of operations. If we fail to operate our business consistent with our business plan, our operating results in any period may be significantly and adversely impacted. Such an outcome could cause customers, suppliers or investors to view us as less stable, or could cause us to fail to meet financial analysts’ revenue or earnings estimates, any of which could have an adverse impact on our stock price.
In addition, our management is constantly striving to balance the requirements and demands of our customers with the availability of resources, the need to manage our operating model and other factors. In furtherance of those efforts, we often must exercise discretion and judgment as to the timing and prioritization of manufacturing, deliveries, installations and payment scheduling. Any such decisions may impact our ability to recognize revenue, including the fiscal period during which such revenue may be recognized, with respect to such products, which could have a material adverse effect on our business, results of operations or stock price.
Our capital structure is highly leveraged.
As of DecemberMarch 31, 2017,2019, we had $2.50 billion aggregate principal amount of outstanding indebtedness, consisting of $2.25$3.45 billion aggregate principal amount of senior, unsecured long-term notes and $250.0 million borrowed under ournotes. Additionally, we have commitments for an unfunded Revolving Credit Facility which includes an additional $500.0 million in unfunded commitments.of $1.00 billion under the Credit Agreement. We may incur additional indebtedness in the future by accessing the unfunded portion of our revolving credit facilityRevolving Credit Facility and/or entering into new financing arrangements. For example, at the same time we announced our intention to acquire Orbotech, we also announced a new stock repurchase program authorizing the repurchase up to $2.00 billion of our common stock, a large portion of which would be financed with new indebtedness. Our ability to pay interest and repay the principal of our current indebtedness is dependent upon our ability to manage our business operations, our credit rating, the ongoing interest rate environment and the other risk factors discussed in this section. There can be no assurance that we will be able to manage any of these risks successfully.
In addition, the interest rates of the senior, unsecured long-term notes may be subject to adjustments from time to time if Moody’s Investors Service, Inc. (“Moody’s”), Standard & Poor’s Ratings Services (“S&P”) or, under certain circumstances, a substitute rating agency selected by us as a replacement for Moody’s or S&P, as the case may be (a “Substitute Rating Agency”), downgrades (or subsequently upgrades) its rating assigned to the respective series of notes such that the adjusted rating is below investment grade. Accordingly, changes by Moody’s, S&P, or a Substitute Rating Agency to the rating of any series of notes, our outlook or credit rating could require us to pay additional interest, which may negatively affect the value and liquidity of our debt and the market price of our common stock could decline. Factors that can affect our credit rating include changes in our operating performance, the economic environment, conditions in the semiconductor and semiconductor equipment industries we serve, our financial position, including the incurrence of additional indebtedness, and our business strategy.

In certain circumstances involving a change of control followed by a downgrade of the rating of a series of notes by at least two of Moody’s, S&P and Fitch Inc., unless we have exercised our right to redeem the notes of such series, we will be required to make an offer to repurchase all or, at the holder’s option, any part, of each holder’s notes of that series pursuant to the offer described below (the “Change of Control Offer”). In the Change of Control Offer, we will be required to offer payment in cash equal to 101% of the aggregate principal amount of notes repurchased plus accrued and unpaid interest, if any, on the notes repurchased, up to, but not including, the date of repurchase. We cannot make any assurance that we will have sufficient financial resources at such time or will be able to arrange financing to pay the repurchase price of that series of notes. Our ability to repurchase that series of notes in such event may be limited by law, by the indenture associated with that series of notes, or by the terms of other agreements to which we may be party at such time. If we fail to repurchase that series of notes as required by the terms of such notes, it would constitute an event of default under the indenture governing that series of notes which, in turn, may also constitute an event of default under other of our obligations.
Borrowings under our Revolving Credit Facility bear interest at a floating rate, and therefore, anyan increase in interest rates would require us to pay additional interest on any borrowings, which may have an adverse effect on the value and liquidity of our debt and the market price of our common stock could decline. The interest rate under our Revolving Credit Facility is also subject to an adjustment in conjunction with our credit rating downgrades or upgrades. Additionally, under our Revolving Credit Facility, we are required to comply with affirmative and negative covenants, which include the maintenance of certain financial ratios, the details of which can be found in Note 7,8, “Debt,” to our condensed consolidated financial statements. If we fail to comply with these covenants, we will be in default and our borrowings will become immediately due and payable. There can be no assurance that we will have sufficient financial resources or we will be able to arrange financing to repay our borrowings at such time. In addition, certain of our domestic subsidiaries are required to guarantee our borrowings under our Revolving Credit Facility. In the event that we default on our borrowings, these domestic subsidiaries shall be liable for our borrowings, which could disrupt our operations and result in a material adverse impact on our business, financial condition or stock price.
Our leveraged capital structure may adversely affect our financial condition, results of operations and net income per share.
Our issuance and maintenance of higher levels of indebtedness could have adverse consequences including, but not limited to:
a negative impact on our ability to satisfy our future obligations;
an increase in the portion of our cash flows that may have to be dedicated to increased interest and principal payments that may not be available for operations, working capital, capital expenditures, acquisitions, investments, dividends, stock repurchases, general corporate or other purposes;
an impairment of our ability to obtain additional financing in the future; and
obligations to comply with restrictive and financial covenants as noted in the above risk factor and Note 7,8, “Debt,” to our condensed consolidated financial statements.
Our ability to satisfy our future expenses as well as our new debt obligations will depend on our future performance, which will be affected by financial, business, economic, regulatory and other factors. Furthermore, our future operations may not generate sufficient cash flows to enable us to meet our future expenses and service our new debt obligations, which may impact our ability to manage our capital structure to preserve and maintain our investment grade rating. If our future operations do not generate sufficient cash flows, we may need to access the unfunded portion ofmoney available for borrowing under our Revolving Credit Facility of $500.0 million or enter into new financing arrangements to obtain necessary funds. If we determine it is necessary to seek additional funding for any reason, we may not be able to obtain such funding or, if funding is available, we may not be able to obtain it on acceptable terms. Any additional borrowingborrowings under our revolving credit facilityRevolving Credit Facility will place further pressure on us to comply with the financial covenants. If we fail to make a payment associated with our debt obligations, we could be in default on such debt, and such a default could cause us to be in default on our other obligations.

There can be no assurance that we will continue to declare cash dividends at all or in any particular amounts.
Our Board of Directors first instituted a quarterly dividend during the fiscal year ended June 30, 2005. Since that time, we have announced a number of increases in the amount of our quarterly dividend level as well as payment of a special cash dividend that was declared and substantially paid in the second quarter of our fiscal year ended June 30, 2015. We intend to continue to pay quarterly dividends subject to capital availability and periodic determinations by our Board of Directors that cash dividends are in the best interest of our stockholders and are in compliance with all laws and agreements applicable to the declaration and payment of cash dividends by us. Future dividends may be affected by, among other factors: our views on potential future capital requirements for investments in acquisitions and the funding of our research and development; legal risks; stock repurchase programs; changes in federal and state income tax laws or corporate laws; changes to our business model; and our increased interest and principal payments required by our outstanding indebtedness and any additional indebtedness that we may incur in the future. Our dividend payments may change from time to time, and we cannot provide assurance that we will continue to declare dividends at all or in any particular amounts. A reduction in our dividend payments could have a negative effect on our stock price.
We are exposed to risks related to our commercial terms and conditions, including our indemnification of third parties, as well as the performance of our products.
Although our standard commercial documentation sets forth the terms and conditions that we intend to apply to commercial transactions with our business partners, counterparties to such transactions may not explicitly agree to our terms and conditions. In situations where we engage in business with a third party without an explicit master agreement regarding the applicable terms and conditions, or where the commercial documentation applicable to the transaction is subject to varying interpretations, we may have disputes with those third parties regarding the applicable terms and conditions of our business relationship with them. Such disputes could lead to a deterioration of our commercial relationship with those parties, costly and time-consuming litigation, or additional concessions or obligations being offered by us to resolve such disputes, or could impact our revenue or cost recognition. Any of these outcomes could materially and adversely affect our business, financial condition and results of operations.
In addition, in our commercial agreements, from time to time in the normal course of business we indemnify third parties with whom we enter into contractual relationships, including customers, suppliers and lessors, with respect to certain matters. We have agreed, under certain conditions, to hold these third parties harmless against specified losses, such as those arising from a breach of representations or covenants, other third party claims that our products when used for their intended purposes infringe the intellectual property rights of such other third parties, or other claims made against certain parties. We may be compelled to enter into or accrue for probable settlements of alleged indemnification obligations, or we may be subject to potential liability arising from our customers’ involvements in legal disputes. In addition, notwithstanding the provisions related to limitations on our liability that we seek to include in our business agreements, the counterparties to such agreements may dispute our interpretation or application of such provisions, and a court of law may not interpret or apply such provisions in our favor, any of which could result in an obligation for us to pay material damages to third parties and engage in costly legal proceedings. It is difficult to determine the maximum potential amount of liability under any indemnification obligations, whether or not asserted, due to our limited history of prior indemnification claims and the unique facts and circumstances that are likely to be involved in any particular claim. Our business, financial condition and results of operations in a reported fiscal period could be materially and adversely affected if we expend significant amounts in defending or settling any purported claims, regardless of their merit or outcomes.
We are also exposed to potential costs associated with unexpected product performance issues. Our products and production processes are extremely complex and thus could contain unexpected product defects, especially when products are first introduced. Unexpected product performance issues could result in significant costs being incurred by us, including increased service or warranty costs, providing product replacements for (or modifications to) defective products, litigation related to defective products, reimbursement for damages caused by our products, product recalls, or product write-offs or disposal costs. These costs could be substantial and could have an adverse impact upon our business, financial condition and operating results. In addition, our reputation with our customers could be damaged as a result of such product defects, which could reduce demand for our products and negatively impact our business.

Furthermore, we occasionally enter into volume purchase agreements with our larger customers, and these agreements may provide for certain volume purchase incentives, such as credits toward future purchases. We believe that these arrangements are beneficial to our long-term business, as they are designed to encourage our customers to purchase higher volumes of our products. However, these arrangements could require us to recognize a reduced level of revenue for the products that are initially purchased, to account for the potential future credits or other volume purchase incentives. Our volume purchase agreements require significant estimation for the amounts to be accrued depending upon the estimate of volume of future purchases. As such, we are required to update our estimates of the accruals on a periodic basis. Until the earnings process is complete, outour estimates could differ in comparison to actuals.actual results. As a result, these volume purchase arrangements, while expected to be beneficial to our business over time, could materially and adversely affect our results of operations in near-term periods, including the revenue we can recognize on product sales and therefore our gross margins.
In addition, we may in limited circumstances enter into agreements that contain customer-specific commitments on pricing, tool reliability, spare parts stocking levels, response time and other commitments. Furthermore, we may give these customers limited audit or inspection rights to enable them to confirm that we are complying with these commitments. If a customer elects to exercise its audit or inspection rights, we may be required to expend significant resources to support the audit or inspection, as well as to defend or settle any dispute with a customer that could potentially arise out of such audit or inspection. To date, we have made no significant accruals in our condensed consolidated financial statements for this contingency. While we have not in the past incurred significant expenses for resolving disputes regarding these types of commitments, we cannot make any assurance that we will not incur any such liabilities in the future. Our business, financial condition and results of operations in a reported fiscal period could be materially and adversely affected if we expend significant amounts in supporting an audit or inspection, or defending or settling any purported claims, regardless of their merit or outcomes.
There are risks associated with our receipt of government funding for research and development.
We are exposed to additional risks related to our receipt of external funding for certain strategic development programs from various governments and government agencies, both domestically and internationally. Governments and government agencies typically have the right to terminate funding programs at any time in their sole discretion, or a project may be terminated by mutual agreement if the parties determine that the project’s goals or milestones are not being achieved, so there is no assurance that these sources of external funding will continue to be available to us in the future. In addition, under the terms of these government grants, the applicable granting agency typically has the right to audit the costs that we incur, directly and indirectly, in connection with such programs. Any such audit could result in modifications to, or even termination of, the applicable government funding program. For example, if an audit were to identify any costs as being improperly allocated to the applicable program, those costs would not be reimbursed, and any such costs that had already been reimbursed would have to be refunded. We do not know the outcome of any future audits. Any adverse finding resulting from any such audit could lead to penalties (financial or otherwise), termination of funding programs, suspension of payments, fines and suspension or prohibition from receiving future government funding from the applicable government or government agency, any of which could adversely impact our operating results, financial condition and ability to operate our business.
We have recorded significant restructuring, inventory write-off and asset impairment charges in the past and may do so again in the future, which could have a material negative impact on our business.
Historically, we have recorded material restructuring charges related to our prior global workforce reductions, large excess inventory write-offs, and material impairment charges related to our goodwill and purchased intangible assets.Workforceassets. Workforce changes can also temporarily reduce workforce productivity, which could be disruptive to our business and adversely affect our results of operations. In addition, we may not achieve or sustain the expected cost savings or other benefits of our restructuring plans, or do so within the expected time frame. If we again restructure our organization and business processes, implement additional cost reduction actions or discontinue certain business operations, we may take additional, potentially material, restructuring charges related to, among other things, employee terminations or exit costs. We may also be required to write-off additional inventory if our product build plans or usage of service inventory decline. Also, as our lead times from suppliers increase (due to the increasing complexity of the parts and components they provide) and the lead times demanded by our customers decrease (due to the time pressures they face when introducing new products or technology or bringing new facilities into production), we may be compelled to increase our commitments, and therefore our risk exposure, to inventory purchases to meet our customers’ demands in a timely manner, and that inventory may need to be written-off if demand for the underlying product declines for any reason. Such additional write-offs could result in material charges.

In the past, we have recorded a material chargecharges related to the impairment of our goodwill and purchased intangible assets. Goodwill represents the excess of costs over the net fair value of net assets acquired in a business combination. Goodwill is not amortized, but is instead tested for impairment at least annually in accordance with authoritative guidance for goodwill. Purchased intangible assets with estimable useful lives are amortized over their respective estimated useful lives based on economic benefit if known or using the straight-line method, and are reviewed for impairment in accordance with authoritative guidance for long-lived assets. The valuation of goodwill and intangible assets requires assumptions and estimates of many critical factors, including revenue and market growth, operating cash flows, market multiples, and discount rates. A substantial decline in our stock price, or any other adverse change in market conditions, particularly if such change has the effect of changing one of the critical assumptions or estimates we previously used to calculate the value of our goodwill or intangible assets (and, as applicable, the amount of any previous impairment charge), could result in a change to the estimation of fair value that could result in an additional impairment charge.
Any such additional material charges, whether related to restructuring or goodwill or purchased intangible asset impairment, may have a material negative impact on our operating results and related financial statements.
We are exposed to risks related to our financial arrangements with respect to receivables factoring and banking arrangements.
We enter into factoring arrangements with financial institutions to sell certain of our trade receivables and promissory notes from customers without recourse. In addition, we maintain bank accounts with several domestic and foreign financial institutions, any of which may prove not to be financially viable. If we were to stop entering into these factoring arrangements, our operating results, financial condition and cash flows could be adversely impacted by delays or failures in collecting trade receivables. However, by entering into these arrangements, and by engaging these financial institutions for banking services, we are exposed to additional risks. If any of these financial institutions experiences financial difficulties or is otherwise unable to honor the terms of our factoring or deposit arrangements, we may experience material financial losses due to the failure of such arrangements or a lack of access to our funds, any of which could have an adverse impact upon our operating results, financial condition and cash flows.
We are subject to the risks of additional government actions in the event we were to breach the terms of any settlement arrangement into which we have entered.
In connection with the settlement of certain government actions and other legal proceedings related to our historical stock option practices, we have explicitly agreed as a condition to such settlements that we will comply with certain laws, such as the books and records provisions of the federal securities laws. If we were to violate any such law, we might not only be subject to the significant penalties applicable to such violation, but our past settlements may also be impacted by such violation, which could give rise to additional government actions or other legal proceedings. Any such additional actions or proceedings may require us to expend significant management time and incur significant accounting, legal and other expenses, and may divert attention and resources from the operation of our business. These expenditures and diversions, as well as an adverse resolution of any such action or proceeding, could have a material adverse effect on our business, financial condition and results of operations.
General Commercial, Operational, Financial and Regulatory Risks
A majority of our annual revenues are derived from outside the United States, and we maintain significant operations outside the United States. We are exposed to numerous risks as a result of the international nature of our business and operations.
A majority of our annual revenues are derived from outside the United States, and we maintain significant operations outside the United States. We expect that these conditions will continue in the foreseeable future. Managing global operations and sites located throughout the world presents a number of challenges, including but not limited to:
managing cultural diversity and organizational alignment;
exposure to the unique characteristics of each region in the global market, which can cause capital equipment investment patterns to vary significantly from period to period;
periodic local or international economic downturns;
potential adverse tax consequences, including withholding tax rules that may limit the repatriation of our earnings, and higher effective income tax rates in foreign countries where we do business;
compliance with customs regulations in the countries in which we do business;
tariffs or other trade barriers (including those applied to our products or to parts and supplies that we purchase);
political instability, natural disasters, legal or regulatory changes, acts of war or terrorism in regions where we have operations or where we do business;

fluctuations in interest and currency exchange rates may adversely impact our ability to compete on price with local providers or the value of revenues we generate from our international business. Although we attempt to manage some of our near-term currency risks through the use of hedging instruments, there can be no assurance that such efforts will be adequate;
longer payment cycles and difficulties in collecting accounts receivable outside of the United States;
difficulties in managing foreign distributors (including monitoring and ensuring our distributors’ compliance with applicable laws); and
inadequate protection or enforcement of our intellectual property and other legal rights in foreign jurisdictions.
In addition, government controls, either by the United States or other countries, that restrict our business overseas or the import or export of our products or increase the cost of our operations through the imposition of tariffs or otherwise, could harm our business. For example, effective on October 30, 2018, the United States Department of Commerce added Fujian Jinhua Integrated Circuit Company, Ltd. (“JHICC”) to its entity list, restricting exports of technology to JHICC without a license. As a result, unless JHICC is subsequently removed from the entity list, we will be unable to fulfill orders JHICC has made for our products, accept future orders placed by JHICC for our products, and provide services for any of our products already installed at JHICC.
Any of the factors above could have a significant negative impact on our business and results of operations.
We are exposed to risks associated with a weakening in the condition of the financial markets and the global economy.
The marketsDemand for semiconductors, and therefore our business, areproducts is ultimately driven by the global demand for electronic devices by consumers and businesses. Economic uncertainty frequently leads to reduced consumer and business spending, which caused our customers to decrease, cancel or delay their equipment and service orders from us in the economic slowdown during fiscal year 2009. In addition, the tightening of credit markets and concerns regarding the availability of credit that accompanied that slowdown made it more difficult for our customers to raise capital, whether debt or equity, to finance their purchases of capital equipment, including the products we sell. Reduced demand, combined with delays in our customers’ ability to obtain financing (or the unavailability of such financing), has at times in the past adversely affected our product and service sales and revenues and therefore has harmed our business and operating results, and our operating results and financial condition may again be adversely impacted if economic conditions decline from their current levels.

In addition, a decline in the condition of the global financial markets could adversely impact the market values or liquidity of our investments. Our investment portfolio includes corporate and government securities, money market funds and other types of debt and equity investments. Although we believe our portfolio continues to be comprised of sound investments due to the quality and (where applicable) credit ratings, a decline in the capital and financial markets would adversely impact the market value of our investments and their liquidity. If the market value of such investments were to decline, or if we were to have to sell some of our investments under illiquid market conditions, we may be required to recognize an impairment charge on such investments or a loss on such sales, either of which could have an adverse effect on our financial condition and operating results.
If we are unable to timely and appropriately adapt to changes resulting from difficult macroeconomic conditions, our business, financial condition or results of operations may be materially and adversely affected.
A majority of our annual revenues are derived from outside the United States, and we maintain significant operations outside the United States. We are exposed to numerous risks as a result of the international nature of our business and operations.
A majority of our annual revenues are derived from outside the United States, and we maintain significant operations outside the United States. We expect that these conditions will continue in the foreseeable future. Managing global operations and sites located throughout the world presents a number of challenges, including but not limited to:
managing cultural diversity and organizational alignment;
exposure to the unique characteristics of each region in the global semiconductor market, which can cause capital equipment investment patterns to vary significantly from period to period;
periodic local or international economic downturns;
potential adverse tax consequences, including withholding tax rules that may limit the repatriation of our earnings, and higher effective income tax rates in foreign countries where we do business;
government controls, either by the United States or other countries, that restrict our business overseas or the import or export of semiconductor products or increase the cost of our operations;
compliance with customs regulations in the countries in which we do business;
tariffs or other trade barriers (including those applied to our products or to parts and supplies that we purchase);
political instability, natural disasters, legal or regulatory changes, acts of war or terrorism in regions where we have operations or where we do business;
fluctuations in interest and currency exchange rates may adversely impact our ability to compete on price with local providers or the value of revenues we generate from our international business. Although we attempt to manage some of our near-term currency risks through the use of hedging instruments, there can be no assurance that such efforts will be adequate;
longer payment cycles and difficulties in collecting accounts receivable outside of the United States;
difficulties in managing foreign distributors (including monitoring and ensuring our distributors’ compliance with applicable laws); and
inadequate protection or enforcement of our intellectual property and other legal rights in foreign jurisdictions.
Any of the factors above could have a significant negative impact on our business and results of operations.

We might be involved in claims or disputes related to intellectual property or other confidential information that may be costly to resolve, prevent us from selling or using the challenged technology and seriously harm our operating results and financial condition.
As is typical in the semiconductor equipment industry,industries in which we serve, from time to time we have received communications from other parties asserting the existence of patent rights, copyrights, trademark rights or other intellectual property rights which they believe cover certain of our products, processes, technologies or information. In addition, we occasionally receive notification from customers who believe that we owe them indemnification or other obligations related to intellectual property claims made against such customers by third parties. With respect to intellectual property infringement disputes, our customary practice is to evaluate such infringement assertions and to consider whether to seek licenses where appropriate. However, we cannot ensurethere can be no assurance that licenses can be obtained or, if obtained, will be on acceptable terms or that costly litigation or other administrative proceedings will not occur. The inability to obtain necessary licenses or other rights on reasonable terms could seriously harm our results of operations and financial condition. Furthermore, we may potentially be subject to claims by customers, suppliers or other business partners, or by governmental law enforcement agencies, related to our receipt, distribution and/or use of third-party intellectual property or confidential information. Legal proceedings and claims, regardless of their merit, and associated internal investigations with respect to intellectual property or confidential information disputes are often expensive to prosecute, defend or conduct; may divert management’s attention and other company resources; and/or may result in restrictions on our ability to sell our products, settlements on significantly adverse terms or adverse judgments for

damages, injunctive relief, penalties and fines, any of which could have a significant negative effect on our business, results of operations and financial condition. There can be no assurance regarding the outcome of future legal proceedings, claims or investigations. The instigation of legal proceedings or claims, our inability to favorably resolve or settle such proceedings or claims, or the determination of any adverse findings against us or any of our employees in connection with such proceedings or claims could materially and adversely affect our business, financial condition and results of operations, as well as our business reputation.
We are exposed to various risks related to the legal, regulatory and tax environments in which we perform our operations and conduct our business.
We are subject to various risks related to compliance with new, existing, different, inconsistent or even conflicting laws, rules and regulations enacted by legislative bodies and/or regulatory agencies in the countries in which we operate and with which we must comply, including environmental, safety, antitrust, anti-corruption/anti-bribery, unclaimed property and export control regulations. Our failure or inability to comply with existing or future laws, rules or regulations, or changes to existing laws, rules or regulations (including changes that result in inconsistent or conflicting laws, rules or regulations), in the countries in which we operate could result in violations of contractual or regulatory obligations that may adversely affect our operating results, financial condition and ability to conduct our business. From time to time, we may receive inquiries or audit notices from governmental or regulatory bodies, or we may participate in voluntary disclosure programs, related to legal, regulatory or tax compliance matters, and these inquiries, notices or programs may result in significant financial cost (including investigation expenses, defense costs, assessments and penalties), reputational harm and other consequences that could materially and adversely affect our operating results and financial condition.
Our properties and many aspects of our business operations are subject to various domestic and international environmental laws and regulations, including those that control and restrict the use, transportation, emission, discharge, storage and disposal of certain chemicals, gases and other substances. Any failure to comply with applicable environmental laws, regulations or requirements may subject us to a range of consequences, including fines, suspension of certain of our business activities, limitations on our ability to sell our products, obligations to remediate environmental contamination, and criminal and civil liabilities or other sanctions. In addition, changes in environmental regulations (including regulations relating to climate change and greenhouse gas emissions) could require us to invest in potentially costly pollution control equipment, alter our manufacturing processes or use substitute (potentially more expensive and/or rarer) materials. Further, we use hazardous and other regulated materials that subject us to risks of strict liability for damages caused by any release, regardless of fault. We also face increasing complexity in our manufacturing, product design and procurement operations as we adjust to new and prospective requirements relating to the materials composition of our products, including restrictions on lead and other substances and requirements to track the sources of certain metals and other materials. The cost of complying, or of failing to comply, with these and other regulatory restrictions or contractual obligations could adversely affect our operating results, financial condition and ability to conduct our business.

In addition, we may from time to time be involved in legal proceedings or claims regarding employment, immigration, contracts, product performance, product liability, antitrust, environmental regulations, securities, unfair competition and other matters (in addition to proceedings and claims related to intellectual property matters, which are separately discussed elsewhere in this Item 1A).matters. These legal proceedings and claims, regardless of their merit, may be time-consuming and expensive to prosecute or defend, divert management’s attention and resources, and/or inhibit our ability to sell our products. There can be no assurance regarding the outcome of current or future legal proceedings or claims, which could adversely affect our operating results, financial condition and ability to operate our business.
We depend on key personnel to manage our business effectively, and if we are unable to attract, retain and motivate our key employees, our sales and product development could be harmed.
Our employees are vital to our success, and our key management, engineering and other employees are difficult to replace. We generally do not have employment contracts with our key employees. Further, we do not maintain key person life insurance on any of our employees. The expansion of high technology companies worldwide has increased demand and competition for qualified personnel. If we are unable to attract and retain key personnel, or if we are not able to attract, assimilate and retain additional highly qualified employees to meet our current and future needs, our business and operations could be harmed.

We outsource a number of services to third-party service providers, which decreases our control over the performance of these functions. Disruptions or delays at our third-party service providers could adversely impact our operations.
We outsource a number of services, including our transportation, information systems management and logistics management of spare parts and certain accounting and procurement functions, to domestic and overseas third-party service providers. While outsourcing arrangements may lower our cost of operations, they also reduce our direct control over the services rendered. It is uncertain what effect such diminished control will have on the quality or quantity of products delivered or services rendered, on our ability to quickly respond to changing market conditions, or on our ability to ensure compliance with all applicable domestic and foreign laws and regulations. In addition, many of these outsourced service providers, including certain hosted software applications that we use for confidential data storage, employ cloud computing technology for such storage. These providers’ cloud computing systems may be susceptible to “cyber incidents,” such as intentional cyber attacks aimed at theft of sensitive data or inadvertent cyber-security compromises, which are outside of our control. If we do not effectively develop and manage our outsourcing strategies, if required export and other governmental approvals are not timely obtained, if our third-party service providers do not perform as anticipated, or do not adequately protect our data from cyber-related security breaches, or if there are delays or difficulties in enhancing business processes, we may experience operational difficulties (such as limitations on our ability to ship products), increased costs, manufacturing or service interruptions or delays, loss of intellectual property rights or other sensitive data, quality and compliance issues, and challenges in managing our product inventory or recording and reporting financial and management information, any of which could materially and adversely affect our business, financial condition and results of operations.
We are exposed to risks related to cybersecurity threats and cyber incidents.
In the conduct of our business, we collect, use, transmit and store data on information systems. This data includes confidential information, transactional information and intellectual property belonging to us, our customers and our business partners, as well as personally-identifiable information of individuals. We allocate significant resources to network security, data encryption and other measures to protect our information systems and data from unauthorized access or misuse. Despite our ongoing efforts to enhance our network security measures, our information systems are susceptible to computer viruses, cyber-related security breaches and similar disruptions from unauthorized intrusions, tampering, misuse, criminal acts, including phishing, or other events or developments that we may be unable to anticipate or fail to mitigate and are subject to the inherent vulnerabilities of network security measures. We have experienced cyber-related attacks in the past, and may experience cyber-related attacks in the future. Our security measures may also be breached due to employee errors, malfeasance, or otherwise. Third parties may also attempt to influence employees, users, suppliers or customers to disclose sensitive information in order to gain access to our, our customers’ or business partners’ data. Because the techniques used to obtain unauthorized access to the information systems change frequently, and may not be recognized until launched against a target, we may be unable to anticipate these techniques or to implement adequate preventative measures.
Any of such occurrences could result in disruptions to our operations; misappropriation, corruption or theft of confidential information, including intellectual property and other critical data, of KLA-Tencor,KLA, our customers and other business partners; misappropriation of funds and company assets; reduced value of our investments in research, development and engineering; litigation with, or payment of damages to, third parties; reputational damage; costs to comply with regulatory inquiries or actions; data privacy issues; costs to rebuild our internal information systems; and increased cybersecurity protection and remediation costs.

We carry insurance that provides some protection against the potential losses arising from a cybersecurity incident but it will not likely cover all such losses, and the losses that it does not cover may be significant.
We rely upon certain critical information systems for our daily business operations. Our inability to use or access our information systems at critical points in time could unfavorably impact our business operations.
Our global operations are dependent upon certain information systems, including telecommunications, the internet, our corporate intranet, network communications, email and various computer hardware and software applications. System failures or malfunctioning, such as difficulties with our customer relationship management (“CRM”) system, could disrupt our operations and our ability to timely and accurately process and report key components of our financial results. Our enterprise resource planning (“ERP”) system is integral to our ability to accurately and efficiently maintain our books and records, record transactions, provide critical information to our management, and prepare our financial statements. Any disruptions or difficulties that may occur in connection with our ERP system or other systems (whether in connection with the regular operation, periodic enhancements, modifications or upgrades of such systems or the integration of our acquired businesses into such systems) could adversely affect our ability to complete important business processes, such as the evaluation of our internal control over financial reporting pursuant to Section 404 of the Sarbanes-Oxley Act of 2002. Any of these events could have an adverse effect on our business, operating results and financial condition.

Acquisitions are an important element of our strategy but, because of the uncertainties involved, we may not find suitable acquisition candidates and we may not be able to successfully integrate and manage acquired businesses. We are also exposed to risks in connection with strategic alliances into which we may enter.
In addition to our efforts to develop new technologies from internal sources, part of our growth strategy is to pursue acquisitions and acquire new technologies from external sources. As part of this effort, in February 2019, we announced that we had consummated our acquisition of Orbotech. We may makealso enter into definitive agreements for and consummate acquisitions of, or significant investments in, businesses with complementary products, services and/or technologies. There can be no assurance that we will find suitable acquisition candidates or that acquisitions we complete will be successful. In addition, we may use equity to finance future acquisitions, which would increase our number of shares outstanding and be dilutive to current stockholders.
If we are unable to successfully integrate and manage acquired businesses, if the costs associated with integrating the acquired business exceeds our expectations, or if acquired businesses perform poorly, then our business and financial results may suffer. It is possible that the businesses we have acquired, as well as businesses that we may acquire in the future, may perform worse than expected or prove to be more difficult to integrate and manage than anticipated. In addition, we may lose key employees of the acquired companies. As a result, risks associated with acquisition transactions may give riselead to a material adverse effect on our business and financial results for a number of reasons, including:
we may have to devote unanticipated financial and management resources to acquired businesses;
the combination of businesses may causeresult in the loss of key personnel or an interruption of, or loss of momentum in, the activities of our company and/or the acquired business;
we may not be able to realize expected operating efficiencies or product integration benefits from our acquisitions;
we may experience challenges in entering into new market segments for which we have not previously manufactured and sold products;
we may face difficulties in coordinating geographically separated organizations, systems and facilities;
the customers, distributors, suppliers, employees and others with whom the companies we acquire have business dealings may have a potentially adverse reaction to the acquisition;
we may have difficulty implementing a cohesive framework of internal controls over the entire organization;
we may have to write-off goodwill or other intangible assets; and
we may incur unforeseen obligations or liabilities in connection with acquisitions.
At times, we may also enter into strategic alliances with customers, suppliers or other business partners with respect to development of technology and intellectual property. These alliances typically require significant investments of capital and exchange of proprietary, highly sensitive information. The success of these alliances depends on various factors over which we may have limited or no control and requires ongoing and effective cooperation with our strategic partners. Mergers and acquisitions and strategic alliances are inherently subject to significant risks, and the inability to effectively manage these risks could materially and adversely affect our business, financial condition and operating results.

Disruption of our manufacturing facilities or other operations, or in the operations of our customers, due to earthquake, flood, other natural catastrophic events, health epidemics or terrorism could result in cancellation of orders, delays in deliveries or other business activities, or loss of customers and could seriously harm our business.
We have significant manufacturing operations in the United States, Singapore, Israel, Germany and China. In addition, our business is international in nature, with our sales, service and administrative personnel and our customers located in numerous countries throughout the world. Operations at our manufacturing facilities and our assembly subcontractors, as well as our other operations and those of our customers, are subject to disruption for a variety of reasons, including work stoppages, acts of war, terrorism, health epidemics, fire, earthquake, volcanic eruptions, energy shortages, flooding or other natural disasters. Such disruption could cause delays in, among other things, shipments of products to our customers, our ability to perform services requested by our customers, or the installation and acceptance of our products at customer sites. We cannot ensureprovide any assurance that alternate means of conducting our operations (whether through alternate production capacity or service providers or otherwise) would be available if a major disruption were to occur or that, if such alternate means were available, they could be obtained on favorable terms.
In addition, as part of our cost-cutting actions, we have consolidated several operating facilities. Our California operations are now primarily centralized in our Milpitas facility. The consolidation of our California operations into a single campus could further concentrate the risks related to any of the disruptive events described above, such as acts of war or terrorism, earthquakes, fires or other natural disasters, if any such event were to impact our Milpitas facility.

We are predominantly uninsured for losses and interruptions caused by terrorist acts and acts of war. If international political instability continues or increases, our business and results of operations could be harmed.
The threat of terrorism targeted at, or acts of war in, the regions of the world in which we do business increases the uncertainty in our markets. Any act of terrorism or war that affects the economy or the semiconductor industryindustries we serve could adversely affect our business. Increased international political instability in various parts of the world, disruption in air transportation and further enhanced security measures as a result of terrorist attacks may hinder our ability to do business and may increase our costs of operations. We maintain significant manufacturing and research and development operations in Israel. Since the establishment of the State of Israel an areain 1948, a number of armed conflicts have taken place between Israel and its Arab neighbors, and a state of hostility varying in degree and intensity, has led to security and economic challenges for Israel. In addition, some our employees in Israel are obligated to perform annual reserve duty in the Israel Defense Forces, and may be called to active military duty in emergency circumstances. We cannot assess the impact that has historically experienced a high degreeemergency conditions in Israel in the future may have on our business, operations, financial condition or results of political instability, and we are therefore exposed to risks associated with future instabilityoperations, but it could be material. Instability in that region. Such instabilityany region could directly impact our ability to operate our business (or our customers’ ability to operate their businesses) in the affected region,, cause us to incur increased costs in transportation, make such transportation unreliable, increase our insurance costs, and cause international currency markets to fluctuate. Such instabilityInstability in the region could also have the same effects on our suppliers and their ability to timely deliver their products. If international political instability continues or increases in any region in which we do business, our business and results of operations could be harmed. We are predominantly uninsured for losses and interruptions caused by terrorist acts and acts of war.
We self-insure certain risks including earthquake risk. If one or more of the uninsured events occurs, we could suffer major financial loss.
We purchase insurance to help mitigate the economic impact of certain insurable risks; however, certain risks are uninsurable, are insurable only at significant cost or cannot be mitigated with insurance. Accordingly, we may experience a loss that is not covered by insurance, either because we do not carry applicable insurance or because the loss exceeds the applicable policy amount or is less than the deductible amount of the applicable policy. For example, we do not currently hold earthquake insurance. An earthquake could significantly disrupt our manufacturing operations, a significant portion of which are conducted in California, an area highly susceptible to earthquakes. It could also significantly delay our research and engineering efforts on new products, much of which is also conducted in California. We take steps to minimize the damage that would be caused by an earthquake, but there is no certainty that our efforts will prove successful in the event of an earthquake. We self-insure earthquake risks because we believe this is a prudent financial decision based on our cash reserves and the high cost and limited coverage available in the earthquake insurance market. Certain other risks are also self-insured either based on a similar cost-benefit analysis, or based on the unavailability of insurance. If one or more of the uninsured events occurs, we could suffer major financial loss.

We are exposed to foreign currency exchange rate fluctuations. Although we hedge certain currency risks, we may still be adversely affected by changes in foreign currency exchange rates or declining economic conditions in these countries.
We have some exposure to fluctuations in foreign currency exchange rates, primarily the Japanese Yen and the euro. We have international subsidiaries that operate and sell our products globally. In addition, an increasing proportion of our manufacturing activities are conducted outside of the United States, and many of the costs associated with such activities are denominated in foreign currencies. We routinely hedge our exposures to certain foreign currencies with certain financial institutions in an effort to minimize the impact of certain currency exchange rate fluctuations, but these hedges may be inadequate to protect us from currency exchange rate fluctuations. To the extent that these hedges are inadequate, or if there are significant currency exchange rate fluctuations in currencies for which we do not have hedges in place, our reported financial results or the way we conduct our business could be adversely affected. Furthermore, if a financial counterparty to our hedges experiences financial difficulties or is otherwise unable to honor the terms of the foreign currency hedge, we may experience material financial losses.
We are exposed to fluctuations in interest rates and the market values of our portfolio investments; impairment of our investments could harm our earnings. In addition, we and our stockholders are exposed to risks related to the volatility of the market for our common stock.
Our investment portfolio primarily consists of both corporate and government debt securities that are susceptible to changes in market interest rates and bond yields. As market interest rates and bond yields increase, those securities with a lower yield-at-cost show a mark-to-market unrealized loss. We believe we have the ability to realize the full value of all these investments upon maturity. However, an impairment of the fair market value of our investments, even if unrealized, must be reflected in our financial statements for the applicable period and may therefore have a material adverse effect on our results of operations for that period.

In addition, the market price for our common stock is volatile and has fluctuated significantly during recent years. The trading price of our common stock could continue to be highly volatile and fluctuate widely in response to various factors, including without limitation conditions in the semiconductor industry and other industries in which we operate, fluctuations in the global economy or capital markets, our operating results or other performance metrics, or adverse consequences experienced by us as a result of any of the risks described elsewhere in this Item 1A. Volatility in the market price of our common stock could cause an investor in our common stock to experience a loss on the value of their investment in us and could also adversely impact our ability to raise capital through the sale of our common stock or to use our common stock as consideration to acquire other companies.
We are exposed to risks in connection with tax and regulatory compliance audits in various jurisdictions.
We are subject to tax and regulatory compliance audits (such as related to customs or product safety requirements) in various jurisdictions, and such jurisdictions may assess additional income or other taxes, penalties, fines or other prohibitions against us. Although we believe our tax estimates are reasonable and that our products and practices comply with applicable regulations, the final determination of any such audit and any related litigation could be materially different from our historical income tax provisions and accruals related to income taxes and other contingencies. In addition to and in connection with the ITA Assessment described in more detail in Note 12, “Income Taxes”, there is an ongoing criminal investigation against our Orbotech subsidiary, certain of its employees and its tax consultant that began prior to the Acquisition Date. We can make no assurances that an indictment will not result from the criminal investigation. The results of an audit or litigation could have a material adverse effect on our operating results or cash flows in the period or periods for which that determination is made.
A change in our effective tax rate can have a significant adverse impact on our business.
We earn profits in, and are therefore potentially subject to taxes in, the U.S. and numerous foreign jurisdictions, including Singapore, Israel and the Cayman Islands, the countries in which we earn the majority of our non-U.S. profits. Due to economic, political or other conditions, tax rates in those jurisdictions may be subject to significant change. A number of factors may adversely impact our future effective tax rates, such as the jurisdictions in which our profits are determined to be earned and taxed; changes in the tax rates imposed by those jurisdictions; expiration of tax holidays in certain jurisdictions that are not renewed; the resolution of issues arising from tax audits with various tax authorities; changes in the valuation of our deferred tax assets and liabilities; adjustments to estimated taxes upon finalization of various tax returns; increases in expenses not deductible for tax purposes, including write-offs of acquired in-process research and development and impairment of goodwill in connection with acquisitions; changes in available tax credits; changes in stock-based compensation expense; changes in tax laws or the interpretation of such tax laws; changes in generally accepted accounting principles; and the repatriation of earnings from outside the United States for which we have not previously provided for United States taxes. A change in our effective tax rate can materially and adversely impact our results from operations. For example, as a consequence of the newly enacted Tax Cuts and Jobs Act (“the Act”), foreign earnings are now deemed to be repatriated resulting in a higher effective tax rate for the Company’s fiscal year ending June 30, 2018.
In addition, recent changes to U.S. tax laws will significantly impact how U.S. multinational corporations are taxed on foreign earnings. Numerous countries are evaluating

their existing tax laws due in part, to recommendations made by the Organization for Economic Co-operation and Development’s (“OECD’s”) Base Erosion and Profit Shifting (“BEPS”) project. To address the impactAs of the recent U.S. tax law changes,December 31, 2018, we recorded a provisional tax amount of $340.9 millionhave completed our accounting for the transitional tax liability and recorded a provisional tax amount of $101.1 million to re-measure certain deferred tax assets and liabilities as a result of the enactment of the Act. These provisional tax amounts recorded are based on our reasonable estimate until we fully complete our assessment and we may need additional information to complete our assessment. We are still evaluating the tax provisions related to Global Intangible Low-Taxed Income (“GILTI”) and we have not made a policy election on how to account for the GILTI provisionseffects of the Act, as allowed by the U.S. generally accepted accounting standards. Our selection of an accounting policy with respect to the new GILTI tax rules will depend, in part,which was enacted into law on analyzing our global income to determine whether we expect to have future U.S. inclusions in taxable income related to GILTI and, if so, what the impact is expected to be.
In addition,December 22, 2017. However, the recent U.S.U.S tax law changes are subject to further interpretationsfuture guidance from the U.S. federal and state governments, and regulatory organizations, such as the Treasury Department and/or IRS and this couldthe IRS. Any future guidance can change the provisionalour tax liability or the accounting treatment of the provisional tax liability based on updated guidance and interpretations.liability. A significant portion of the additional provisions for income taxes we have made due to the enactment of the Act is payable by us over a period of up to eight years. As a result, our cash flows from operating activities will be adversely impacted until the additional tax provisions areliability is paid in full.
Compliance with federal securities laws, rules and regulations, as well as NASDAQ requirements, has become increasingly complex, and the significant attention and expense we must devote to those areas may have an adverse impact on our business.
Federal securities laws, rules and regulations, as well as NASDAQ rules and regulations, require companies to maintain extensive corporate governance measures, impose comprehensive reporting and disclosure requirements, set strict independence and financial expertise standards for audit and other committee members and impose civil and criminal penalties for companies and their chief executive officers, chief financial officers and directors for securities law violations. These laws, rules and regulations have increased, and in the future are expected to continue to increase, the scope, complexity and cost of our corporate governance, reporting and disclosure practices, which could harm our results of operations and divert management’s attention from business operations.

A change in accounting standards or practices or a change in existing taxation rules or practices (or changes in interpretations of such standards, practices or rules) can have a significant effect on our reported results and may even affect reporting of transactions completed before the change is effective.
New accounting standards and taxation rules and varying interpretations of accounting pronouncements and taxation rules have occurred and will continue to occur in the future. Changes to (or revised interpretations or applications of) existing accounting standards or tax rules or the questioning of current or past practices may adversely affect our reported financial results or the way we conduct our business. For example, in May 2014, the Financial Accounting Standards Board (“FASB”) issued an accounting standard update regarding revenue from contracts with customers, and in February 2016, the FASB issued an accounting standard update which amends the existing accounting standards for leases. Adoption of new standards may require changes to our processes, accounting systems, and internal controls. Difficulties encountered during adoption could result in internal control deficiencies or delay the reporting of our financial results. In addition, the passing of the Act in December 2017 caused us to significantly increase our provision for income taxes, which had a material adverse effect on our net income for the fiscal year ended June 30, 2018threeandsix months ended December 31, 2017.. Further interpretations of the Act from the government and regulatory organizations may change our tax expense provided for our transitional tax liability and deferred tax adjustments as well as our provision liability or accounting treatment of the provisional liability which may potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts.


ITEM 2.UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Equity Repurchase Plans
The following is a summary of stock repurchases for the three months ended DecemberMarch 31, 2017 (1):2019:
Period
Total Number of
Shares
Purchased (2)
 
Average Price Paid
per Share
 
Maximum Number of Shares that May Yet Be Purchased Under the Plans or Programs (3)
October 1, 2017 to October 31, 201791,279
 $105.94
 5,148,361
November 1, 2017 to November 30, 2017154,601
 $104.19
 4,993,760
December 1, 2017 to December 31, 2017142,464
 $105.92
 4,851,296
Total388,344
 $105.24
  
Period
Total Number of
Shares
Purchased
 
Average Price Paid
per Share
 
Approximate Dollar Value that May Yet Be Purchased Under the Plans or Programs (1)
January 1, 2019 to January 31, 2019
 $
 $411,707,942
February 1, 2019 to February 28, 2019542,900
 $114.88
 $1,349,341,805
March 1, 2019 to March 31, 20191,227,300
 $117.05
 $1,205,690,809
Total1,770,200
 $116.38
  
__________________ 
(1)Our Board of Directors has authorized a program for us to repurchase shares of our common stock. The total number and dollar amount of shares repurchased for the three months ended December 31, 2017 and fiscal years ended June 30, 2017, 2016 and 2015 were 0.4 million shares ($40.9 million), 0.2 million shares ($25.0 million), 3.4 million shares ($175.7 million) and 9.3 million shares ($608.9 million), respectively.
(2)All shares were purchased pursuant to the publicly announced repurchase program described in footnote 1 above. Shares are reported based on the trade date of the applicable repurchase.
(3)The stock repurchase program has no expiration date.date and may be suspended at any time. Future repurchases of our common stock under our repurchase program may be effected through various different repurchase transaction structures, including isolated open market transactions or systematic repurchase plans.
ITEM 3.DEFAULTS UPON SENIOR SECURITIES
None.
ITEM 4.MINE SAFETY DISCLOSURES
Not applicable.
ITEM 5.    OTHER INFORMATION
None.

ITEM 6.EXHIBITS
   Incorporated by Reference
Exhibit
Number
 Exhibit DescriptionForm
File
Number
Exhibit
Number
Filing
Date
       

 8-K000-0999210.111/30/2017
       
     
       
     
       
     
       
101.INS XBRL Instance Document    
       
101.SCH XBRL Taxonomy Extension Schema Document    
       
101.CAL XBRL Taxonomy Extension Calculation Linkbase Document    
       
101.DEF XBRL Taxonomy Extension Definition Linkbase Document    
       
101.LAB XBRL Taxonomy Extension Label Linkbase Document    
       
101.PRE XBRL Taxonomy Extension Presentation Linkbase Document    
   Incorporated by Reference
Exhibit
Number
 Exhibit DescriptionForm
File
Number
Exhibit
Number
Filing
Date
       
 8-K000-099924.111/7/2014
       
 8-K000-099924.23/20/2019
       
     
       
     
       
     
       
 S-8333-23011210.13/7/2019
       
 S-8333-23011210.23/7/2019
       
 S-8333-23011210.33/7/2019
       
     
       
     
       
     
       
101.INS XBRL Instance Document    
       
101.SCH XBRL Taxonomy Extension Schema Document    
       
101.CAL XBRL Taxonomy Extension Calculation Linkbase Document    
       
101.DEF XBRL Taxonomy Extension Definition Linkbase Document    
       
101.LAB XBRL Taxonomy Extension Label Linkbase Document    
       
101.PRE XBRL Taxonomy Extension Presentation Linkbase Document    

* Denotes a management contract, plan or arrangement.
+ Confidential treatment has been requested as to a portion of this exhibit.




SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
 
    KLA-Tencor Corporation
    (Registrant)
   
January 25, 2018May 8, 2019   /s/ RICHARD P. WALLACE
(Date)   Richard P. Wallace
    
President and Chief Executive Officer
(Principal Executive Officer)
   
January 25, 2018May 8, 2019   /s/ BREN D. HIGGINS
(Date)   Bren D. Higgins
    
Executive Vice President and Chief Financial Officer
(Principal Financial Officer)
   
January 25, 2018May 8, 2019   /s/ VIRENDRA A. KIRLOSKAR
(Date)   Virendra A. Kirloskar
    
Senior Vice President and Chief Accounting Officer
(Principal Accounting Officer)

KLA-TENCOR CORPORATION
EXHIBIT INDEX
   Incorporated by Reference
Exhibit
Number
 Exhibit DescriptionForm
File
Number
Exhibit
Number
Filing
Date
       

 8-K000-0999210.111/30/2017
       
     
       
     
       
     
       
101.INS XBRL Instance Document    
       
101.SCH XBRL Taxonomy Extension Schema Document    
       
101.CAL XBRL Taxonomy Extension Calculation Linkbase Document    
       
101.DEF XBRL Taxonomy Extension Definition Linkbase Document    
       
101.LAB XBRL Taxonomy Extension Label Linkbase Document    
       
101.PRE XBRL Taxonomy Extension Presentation Linkbase Document    
   Incorporated by Reference
Exhibit
Number
 Exhibit DescriptionForm
File
Number
Exhibit
Number
Filing
Date
       
 8-K000-099924.111/7/2014
       
 8-K000-099924.23/20/2019
       
     
       
     
       
     
       
 S-8333-23011210.13/7/2019
       
 S-8333-23011210.23/7/2019
       
 S-8333-23011210.33/7/2019
       
     
       
     
       
     
       
101.INS XBRL Instance Document    
       
101.SCH XBRL Taxonomy Extension Schema Document    
       
101.CAL XBRL Taxonomy Extension Calculation Linkbase Document    
       
101.DEF XBRL Taxonomy Extension Definition Linkbase Document    
       
101.LAB XBRL Taxonomy Extension Label Linkbase Document    
       
101.PRE XBRL Taxonomy Extension Presentation Linkbase Document    

* Denotes a management contract, plan or arrangement.

+ Confidential treatment has been requested as to a portion of this exhibit.


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