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 June 30, 2017March 31, 2018
OR
oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from              to     
Commission File Number: 1-9044 (Duke Realty Corporation) 0-20625 (Duke Realty Limited Partnership)
dukerealtylogostacka01a01a14.jpg
DUKE REALTY CORPORATION
DUKE REALTY LIMITED PARTNERSHIP
(Exact Name of Registrant as Specified in Its Charter)
Indiana (Duke Realty Corporation) 35-1740409 (Duke Realty Corporation)
Indiana (Duke Realty Limited Partnership) 35-1898425 (Duke Realty Limited Partnership)
(State or Other Jurisdiction
of Incorporation or Organization)
 
(I.R.S. Employer
Identification Number)
600 East 96thStreet, Suite 100
Indianapolis, Indiana
 46240
(Address of Principal Executive Offices) (Zip Code)
Registrant's Telephone Number, Including Area Code: (317) 808-6000
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.
Duke Realty Corporation
Yes x
 No   o
 Duke Realty Limited Partnership
Yes x
 No   o
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, 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).
Duke Realty Corporation
Yes x
No  o
 Duke Realty Limited Partnership
Yes x
No  o
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.
Duke Realty Corporation:
Large accelerated filer  x
Accelerated filer  o
Non-accelerated filer  o
Smaller reporting company  o
Emerging growth company  o


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. o
Duke Realty Limited Partnership:
Large accelerated filer  o
Accelerated filer  o
Non-accelerated filer  x
Smaller reporting company  o
Emerging growth company  o
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. o
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act):
Duke Realty Corporation
Yes  o
No  x
 Duke Realty Limited Partnership
Yes  o
No  x





Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practicable date:
Class Outstanding Common Shares of Duke Realty Corporation at July 31, 2017May 3, 2018
Common Stock $.010.01 par value per share 355,732,029357,030,140




EXPLANATORY NOTE
This report (the "Report") combines the quarterly reports on Form 10-Q for the period ended June 30, 2017March 31, 2018 of both Duke Realty Corporation and Duke Realty Limited Partnership. Unless stated otherwise or the context otherwise requires, references to "Duke Realty Corporation" or the "General Partner" mean Duke Realty Corporation and its consolidated subsidiaries, and references to the "Partnership" mean Duke Realty Limited Partnership and its consolidated subsidiaries. The terms the "Company," "we," "us" and "our" refer to the General Partner and the Partnership, collectively, and those entities owned or controlled by the General Partner and/or the Partnership.
Duke Realty Corporation is a self-administered and self-managed real estate investment trust ("REIT") and is the sole general partner of the Partnership, owning 99.1% of the common partnership interests of the Partnership ("General Partner Units") as of June 30, 2017.March 31, 2018. The remaining 0.9% of the common partnership interests ("Limited Partner Units" and, together with the General Partner Units, the "Common Units") are owned by Limited Partners.limited partners. As the sole general partner of the Partnership, the General Partner has full, exclusive and complete responsibility and discretion in the day-to-day management and control of the Partnership.
The General Partner and the Partnership are operated as one enterprise. The management of the General Partner consists of the same members as the management of the Partnership. As the sole general partner with control of the Partnership, the General Partner consolidates the Partnership for financial reporting purposes, and the General Partner does not have any significant assets other than its investment in the Partnership. Therefore, the assets and liabilities of the General Partner and the Partnership are substantially the same.
We believe combining the quarterly reports on Form 10-Q of the General Partner and the Partnership into this single report results in the following benefits:
enhances investors' understanding of the General Partner and the Partnership by enabling investors to view the business as a whole in the same manner as management views and operates the business;
eliminates duplicative disclosure and provides a more streamlined and readable presentation of information since a substantial portion of the Company's disclosure applies to both the General Partner and the Partnership; and
creates time and cost efficiencies through the preparation of one combined report instead of two separate reports.
 
We believe it is important to understand the few differences between the General Partner and the Partnership in the context of how we operate as an interrelated consolidated company. The General Partner's only material asset is its ownership of partnership interests in the Partnership. As a result, the General Partner does not conduct business itself, other than acting as the sole general partner of the Partnership and issuing public equity from time to time. The General Partner does not issue any indebtedness, but does guarantee some of the unsecured debt of the Partnership. The Partnership holds substantially all the assets of the business, directly or indirectly, and holds the ownership interests related to certain of the Company's investments. The Partnership conducts the operations of the business and has no publicly traded equity. Except for net proceeds from equity issuances by the General Partner, which are contributed to the Partnership in exchange for General Partner Units or Preferred Units, the Partnership generates the capital required by the business through its operations, its incurrence of indebtedness and the issuance of Limited Partner Units to third parties.
Noncontrolling interests, shareholders' equity and partners' capital are the main areas of difference between the consolidated financial statements of the General Partner and those of the Partnership. The noncontrolling interests in the Partnership's financial statements include the interests in consolidated investees not wholly owned by the Partnership. The noncontrolling interests in the General Partner's financial statements include the same noncontrolling interests at the Partnership level, as well as the common limited partnership interests in the Partnership, which are accounted for as partners' capital by the Partnership.
In order to highlight the differences between the General Partner and the Partnership, there are separate sections in this report, as applicable, that separately discuss the General Partner and the Partnership, including separate financial statements and separate Exhibit 31 and 32 certifications. In the sections that combine disclosure of the General Partner and the Partnership, this report refers to actions or holdings as being actions or holdings of the collective Company.






DUKE REALTY CORPORATION/DUKE REALTY LIMITED PARTNERSHIP
INDEX
    
   Page
 
    
  
    
 Duke Realty Corporation: 
  
  
  
  
    
 Duke Realty Limited Partnership: 
  
  
  
  
    
 Duke Realty Corporation and Duke Realty Limited Partnership: 
  
    
 
 
 
  
 
    
 
 
 
 
 
 
 


PART I - FINANCIAL INFORMATION
Item 1. Financial Statements
DUKE REALTY CORPORATION AND SUBSIDIARIES
Consolidated Balance Sheets
(in thousands, except per share amounts)
June 30,
2017
 December 31,
2016
March 31,
2018
 December 31,
2017
(Unaudited)  (Unaudited)  
ASSETS      
Real estate investments:      
Real estate assets$5,500,036
 $5,144,805
$6,608,594
 $6,593,567
Construction in progress469,734
 303,644
441,484
 401,407
Investments in and advances to unconsolidated companies132,817
 197,807
Investments in and advances to unconsolidated joint ventures121,576
 126,487
Undeveloped land189,469
 237,436
259,842
 226,987
6,292,056
 5,883,692
7,431,496
 7,348,448
Accumulated depreciation(1,122,527) (1,042,944)(1,238,688) (1,193,905)
Net real estate investments5,169,529
 4,840,748
6,192,808
 6,154,543
      
Real estate investments and other assets held-for-sale213,654
 1,324,258
21,740
 17,550
      
Cash and cash equivalents76,326
 12,639
160,861
 67,562
Accounts receivable, net of allowance of $1,557 and $1,39123,580
 15,838
Straight-line rent receivable, net of allowance of $4,371 and $5,26886,824
 82,554
Accounts receivable, net of allowance of $1,626 and $1,70921,939
 19,427
Straight-line rent receivable, net of allowance of $6,104 and $5,25497,266
 93,005
Receivables on construction contracts, including retentions9,274
 6,159
16,692
 13,480
Deferred leasing and other costs, net of accumulated amortization of $200,560 and $186,798263,358
 258,741
Deferred leasing and other costs, net of accumulated amortization of $208,092 and $209,451297,103
 292,682
Restricted cash held in escrow for like-kind exchange839,128
 40,102
59,196
 116,405
Notes receivable from property sales423,946
 25,460
386,789
 426,657
Other escrow deposits and assets211,950
 165,503
Other escrow deposits and other assets173,280
 186,885
$7,317,569
 $6,772,002
$7,427,674
 $7,388,196
LIABILITIES AND EQUITY      
Indebtedness:      
Secured debt, net of deferred financing costs of $784 and $969$337,729
 $383,725
Unsecured debt, net of deferred financing costs of $19,583 and $22,0831,942,399
 2,476,752
Secured debt, net of deferred financing costs of $529 and $614$310,070
 $311,349
Unsecured debt, net of deferred financing costs of $20,000 and $20,5002,111,386
 2,111,542
Unsecured line of credit
 48,000
75,000
 
2,280,128
 2,908,477
2,496,456
 2,422,891
      
Liabilities related to real estate investments held-for-sale9,089
 56,291
1,327
 1,163
      
Construction payables and amounts due subcontractors, including retentions73,749
 44,250
53,339
 54,545
Accrued real estate taxes65,551
 59,112
71,234
 67,374
Accrued interest13,944
 23,633
27,166
 17,911
Other liabilities173,457
 153,846
152,358
 210,825
Tenant security deposits and prepaid rents38,195
 33,100
44,610
 39,109
Total liabilities2,654,113
 3,278,709
2,846,490
 2,813,818
Shareholders' equity:      
Common shares ($0.01 par value); 600,000 shares authorized; 355,713 and 354,756 shares issued and outstanding, respectively3,557
 3,548
Common shares ($0.01 par value); 600,000 shares authorized; 357,025 and 356,361 shares issued and outstanding, respectively3,570
 3,564
Additional paid-in capital5,196,184
 5,192,011
5,204,855
 5,205,316
Accumulated other comprehensive income
 682
Distributions in excess of net income(585,592) (1,730,423)(674,920) (676,036)
Total shareholders' equity4,614,149
 3,465,818
4,533,505
 4,532,844
Noncontrolling interests49,307
 27,475
47,679
 41,534
Total equity4,663,456
 3,493,293
4,581,184
 4,574,378
$7,317,569
 $6,772,002
$7,427,674
 $7,388,196
See accompanying Notes to Consolidated Financial Statements


DUKE REALTY CORPORATION AND SUBSIDIARIES
Consolidated Statements of Operations and Comprehensive Income
For the three and six months ended June 30,March 31,
(in thousands, except per share amounts)
(Unaudited)
Three Months Ended Six Months Ended
2017 2016 2017 20162018 2017
Revenues:          
Rental and related revenue$165,836
 $157,910
 $337,512
 $318,497
$193,456
 $171,676
General contractor and service fee revenue23,576
 26,044
 32,975
 49,195
41,101
 9,399
189,412
 183,954
 370,487
 367,692
234,557
 181,075
Expenses:          
Rental expenses14,506
 17,017
 30,743
 37,752
20,396
 16,237
Real estate taxes26,902
 24,899
 53,412
 49,685
31,146
 26,511
General contractor and other services expenses22,374
 22,228
 29,998
 43,148
40,409
 7,624
Depreciation and amortization67,013
 61,136
 129,036
 120,669
77,529
 62,023
130,795
 125,280
 243,189
 251,254
169,480
 112,395
Other operating activities:          
Equity in earnings of unconsolidated companies51,933
 3,534
 56,682
 25,394
Gain on dissolution of unconsolidated company
 30,697
 
 30,697
Promote income20,007
 24,087
 20,007
 24,087
Equity in earnings of unconsolidated joint ventures8,287
 4,749
Gain on sale of properties34,341
 39,314
 71,387
 54,891
44,886
 37,046
Gain on land sales1,279
 707
 2,784
 837
2,949
 1,505
Other operating expenses(718) (836) (1,457) (2,072)(786) (738)
Impairment charges
 (5,651) (859) (12,056)
 (859)
General and administrative expenses(11,858) (11,584) (31,090) (29,682)(21,023) (19,232)
94,984
 80,268
 117,454
 92,096
34,313
 22,471
Operating income153,601
 138,942
 244,752
 208,534
99,390
 91,151
Other income (expenses):          
Interest and other income, net2,260
 567
 2,792
 3,090
4,463
 533
Interest expense(21,680) (29,511) (44,566) (59,644)(20,000) (24,162)
Loss on debt extinguishment(9,561) (2,430) (9,536) (2,430)
Acquisition-related activity
 (72) 
 (75)
Gain on debt extinguishment
 25
Income from continuing operations before income taxes124,620
 107,496
 193,442
 149,475
83,853
 67,547
Income tax (expense) benefit(5,426) 157
 (7,557) (186)
Income tax expense(10,329) (2,132)
Income from continuing operations119,194
 107,653
 185,885
 149,289
73,524
 65,415
Discontinued operations:          
Income before gain on sales11,095
 2,278
 15,185
 4,484
(Loss) income before gain on sales(8) 5,366
Gain on sale of depreciable properties1,109,091
 252
 1,109,091
 166
132
 
Income tax expense(11,613) 
 (11,613) 
Income from discontinued operations1,108,573
 2,530
 1,112,663
 4,650
124
 5,366
Net income1,227,767
 110,183
 1,298,548
 153,939
73,648
 70,781
Net income attributable to noncontrolling interests(17,224) (1,116) (17,805) (1,565)(685) (581)
Net income attributable to common shareholders$1,210,543
 $109,067
 $1,280,743
 $152,374
$72,963
 $70,200
Basic net income per common share:          
Continuing operations attributable to common shareholders$0.33
 $0.30
 $0.52
 $0.43
$0.20
 $0.18
Discontinued operations attributable to common shareholders3.07
 0.01
 3.08
 0.01

 0.02
Total$3.40
 $0.31
 $3.60
 $0.44
$0.20
 $0.20
Diluted net income per common share:          
Continuing operations attributable to common shareholders$0.33
 $0.30
 $0.51
 $0.43
$0.20
 $0.18
Discontinued operations attributable to common shareholders3.05
 0.01
 3.06
 0.01

 0.02
Total$3.38
 $0.31
 $3.57
 $0.44
$0.20
 $0.20
Weighted average number of common shares outstanding355,647
 347,464
 355,466
 346,564
356,740
 355,282
Weighted average number of common shares and potential dilutive securities361,981
 354,433
 361,789
 352,227
360,400
 360,700
          
Comprehensive income:          
Net income$1,227,767
 $110,183
 $1,298,548
 $153,939
$73,648
 $70,781
Other comprehensive loss:          
Amortization of interest contracts and other(426) (295) (682) (590)
Amortization of interest contracts
 (256)
Comprehensive income$1,227,341
 $109,888
 $1,297,866
 $153,349
$73,648
 $70,525
   
See accompanying Notes to Consolidated Financial Statements


DUKE REALTY CORPORATION AND SUBSIDIARIES
Consolidated Statements of Cash Flows
For the sixthree months ended June 30,March 31,
(in thousands)
(Unaudited)
2017 20162018 2017
Cash flows from operating activities:      
Net income$1,298,548
 $153,939
$73,648
 $70,781
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation of buildings and tenant improvements124,883
 126,594
63,944
 66,172
Amortization of deferred leasing and other costs30,002
 31,365
13,585
 15,385
Amortization of deferred financing costs2,672
 2,608
1,418
 1,316
Straight-line rental income and expense, net(7,722) (5,768)(6,288) (2,928)
Impairment charges859
 12,056

 859
Loss on debt extinguishment9,536
 2,430
Gain on dissolution of unconsolidated company
 (30,697)
Accrued promote income
 (24,087)
Gain on debt extinguishment
 (25)
Gains on land and depreciated property sales(1,183,262) (55,894)(47,967) (38,551)
Third-party construction contracts, net(1,945) 723
(367) 714
Other accrued revenues and expenses, net4,179
 1,012
19,862
 (3,733)
Operating distributions received less than equity in earnings from unconsolidated companies(46,303) (16,080)
Equity in earnings in excess of operating distributions received from unconsolidated joint ventures(4,673) (282)
Net cash provided by operating activities231,447
 198,201
113,162
 109,708
Cash flows from investing activities:      
Development of real estate investments(288,833) (213,262)(104,346) (112,727)
Acquisition of real estate investments and related intangible assets(237,472) (16,029)(22,801) (114,369)
Acquisition of undeveloped land(67,923) (27,243)(67,256) (50,436)
Second generation tenant improvements, leasing costs and building improvements(20,112) (30,237)(14,102) (10,431)
Other deferred leasing costs(16,091) (14,993)(9,798) (4,398)
Other assets(828,707) 182,996
39,183
 (4,186)
Proceeds from land and depreciated property sales, net1,977,127
 174,882
131,380
 103,120
Capital distributions from unconsolidated companies111,557
 36,328
Capital contributions and advances to unconsolidated companies(2,039) (50,955)
Net cash provided by investing activities627,507
 41,487
Capital distributions from unconsolidated joint ventures9,404
 4,858
Capital contributions and advances to unconsolidated joint ventures
 (297)
Net cash used for investing activities(38,336) (188,866)
Cash flows from financing activities:      
Proceeds from issuance of common shares, net3,690
 99,844
706
 786
Proceeds from unsecured debt
 375,000
Payments on unsecured debt(545,924) (75,668)(656) (616)
Payments on secured indebtedness including principal amortization(46,123) (348,743)(1,345) (17,539)
Repayments of line of credit, net(48,000) (71,000)
Borrowings on line of credit, net75,000
 189,000
Distributions to common shareholders(135,131) (124,651)(71,398) (67,554)
Distributions to noncontrolling interests(1,298) (1,304)(680) (640)
Tax payments on stock-based compensation awards(9,003) (6,829)(7,984) (8,848)
Change in book overdrafts(13,470) (10,974)
Change in book cash overdrafts(33,448) 7,115
Deferred financing costs(8) (6,196)(285) (7)
Net cash used for financing activities(795,267) (170,521)
Net increase in cash and cash equivalents63,687
 69,167
Cash and cash equivalents at beginning of period12,639
 22,533
Cash and cash equivalents at end of period$76,326
 $91,700
Net cash (used for) provided by financing activities(40,090) 101,697
Net increase in cash, cash equivalents and restricted cash34,736
 22,539
Cash, cash equivalents and restricted cash at beginning of period193,627
 57,038
Cash, cash equivalents and restricted cash at end of period$228,363
 $79,577
      
Non-cash investing and financing activities:      
Notes receivable from buyers in property sales$400,000
 $1,685
Conversion of Limited Partner Units to common shares$1,683
 $185
$
 $1,685
See accompanying Notes to Consolidated Financial Statements




DUKE REALTY CORPORATION AND SUBSIDIARIES
Consolidated Statement of Changes in Equity
For the sixthree months ended June 30, 2017March 31, 2018
(in thousands, except per share data)
(Unaudited)
 
 Common Shareholders    
  
Common
Stock
 
Additional
Paid-in
Capital
 
Accumulated
Other
Comprehensive
Income
 
Distributions
in Excess of
Net Income
 
Noncontrolling
Interests
 Total
Balance at December 31, 2016 $3,548
 $5,192,011
 $682
 $(1,730,423) $27,475
 $3,493,293
Net income 
 
 
 1,280,743
 17,805
 1,298,548
Other comprehensive loss 
 
 (682) 
 
 (682)
Issuance of common shares 1
 3,689
 
 
 
 3,690
Stock-based compensation plan activity 7
 (1,198) 
 (781) 7,008
 5,036
Conversion of Limited Partner Units 1
 1,682
 
 
 (1,683) 
Distributions to common shareholders ($0.38 per share) 
 
 
 (135,131) 
 (135,131)
Distributions to noncontrolling interests 
 
 
 
 (1,298) (1,298)
Balance at June 30, 2017 $3,557
 $5,196,184
 $
 $(585,592) $49,307
 $4,663,456
 Common Shareholders    
  
Common
Stock
 
Additional
Paid-in
Capital
 
Distributions
in Excess of
Net Income
 
Noncontrolling
Interests
 Total
Balance at December 31, 2017 $3,564
 $5,205,316
 $(676,036) $41,534
 $4,574,378
Net income 
 
 72,963
 685
 73,648
Issuance of common shares 
 706
 
 
 706
Stock-based compensation plan activity 6
 (1,167) (449) 6,140
 4,530
Distributions to common shareholders ($0.20 per share) 
 
 (71,398) 
 (71,398)
Distributions to noncontrolling interests 
 
 
 (680) (680)
Balance at March 31, 2018 $3,570
 $5,204,855
 $(674,920) $47,679
 $4,581,184
See accompanying Notes to Consolidated Financial Statements






DUKE REALTY LIMITED PARTNERSHIP AND SUBSIDIARIES
Consolidated Balance Sheets
(in thousands)


June 30,
2017
 December 31, 2016March 31,
2018
 December 31, 2017
(Unaudited)  (Unaudited)  
ASSETS      
Real estate investments:      
Real estate assets$5,500,036
 $5,144,805
$6,608,594
 $6,593,567
Construction in progress469,734
 303,644
441,484
 401,407
Investments in and advances to unconsolidated companies132,817
 197,807
Investments in and advances to unconsolidated joint ventures121,576
 126,487
Undeveloped land189,469
 237,436
259,842
 226,987
6,292,056
 5,883,692
7,431,496
 7,348,448
Accumulated depreciation(1,122,527) (1,042,944)(1,238,688) (1,193,905)
Net real estate investments5,169,529
 4,840,748
6,192,808
 6,154,543
      
Real estate investments and other assets held-for-sale213,654
 1,324,258
21,740
 17,550
      
Cash and cash equivalents76,326
 12,639
160,861
 67,562
Accounts receivable, net of allowance of $1,557 and $1,39123,580
 15,838
Straight-line rent receivable, net of allowance of $4,371 and $5,26886,824
 82,554
Accounts receivable, net of allowance of $1,626 and $1,70921,939
 19,427
Straight-line rent receivable, net of allowance of $6,104 and $5,25497,266
 93,005
Receivables on construction contracts, including retentions9,274
 6,159
16,692
 13,480
Deferred leasing and other costs, net of accumulated amortization of $200,560 and $186,798263,358
 258,741
Deferred leasing and other costs, net of accumulated amortization of $208,092 and $209,451297,103
 292,682
Restricted cash held in escrow for like-kind exchange839,128
 40,102
59,196
 116,405
Notes receivable from property sales423,946
 25,460
386,789
 426,657
Other escrow deposits and other assets211,950
 165,503
173,280
 186,885
$7,317,569
 $6,772,002
$7,427,674
 $7,388,196
LIABILITIES AND EQUITY      
Indebtedness:      
Secured debt, net of deferred financing costs of $784 and $969$337,729
 $383,725
Unsecured debt, net of deferred financing costs of $19,583 and $22,0831,942,399
 2,476,752
Secured debt, net of deferred financing costs of $529 and $614$310,070
 $311,349
Unsecured debt, net of deferred financing costs of $20,000 and $20,5002,111,386
 2,111,542
Unsecured line of credit
 48,000
75,000
 
2,280,128
 2,908,477
2,496,456
 2,422,891
      
Liabilities related to real estate investments held-for-sale9,089
 56,291
1,327
 1,163
      
Construction payables and amounts due subcontractors, including retentions73,749
 44,250
53,339
 54,545
Accrued real estate taxes65,551
 59,112
71,234
 67,374
Accrued interest13,944
 23,633
27,166
 17,911
Other liabilities173,457
 153,846
152,358
 210,825
Tenant security deposits and prepaid rents38,195
 33,100
44,610
 39,109
Total liabilities2,654,113
 3,278,709
2,846,490
 2,813,818
Partners' equity:      
Common equity (355,713 and 354,756 General Partner Units issued and outstanding, respectively)4,614,149
 3,465,136
Limited Partners' common equity (3,302 and 3,408 Limited Partner Units issued and outstanding, respectively)40,651
 24,691
Accumulated other comprehensive income
 682
Common equity (357,025 and 356,361 General Partner Units issued and outstanding, respectively)4,533,505
 4,532,844
Limited Partners' common equity (3,402 and 3,283 Limited Partner Units issued and outstanding, respectively)46,706
 40,563
Total partners' equity4,654,800
 3,490,509
4,580,211
 4,573,407
Noncontrolling interests8,656
 2,784
973
 971
Total equity4,663,456
 3,493,293
4,581,184
 4,574,378
$7,317,569
 $6,772,002
$7,427,674
 $7,388,196
See accompanying Notes to Consolidated Financial Statements


DUKE REALTY LIMITED PARTNERSHIP AND SUBSIDIARIES
Consolidated Statements of Operations and Comprehensive Income
For the three and six months ended June 30,March 31,
(in thousands, except per unit amounts)
(Unaudited)
 2018 2017
Revenues:   
Rental and related revenue$193,456
 $171,676
General contractor and service fee revenue41,101
 9,399
 234,557
 181,075
Expenses:   
Rental expenses20,396
 16,237
Real estate taxes31,146
 26,511
General contractor and other services expenses40,409
 7,624
Depreciation and amortization77,529
 62,023
 169,480
 112,395
Other operating activities:   
Equity in earnings of unconsolidated joint ventures8,287
 4,749
Gain on sale of properties44,886
 37,046
Gain on land sales2,949
 1,505
Other operating expenses(786) (738)
Impairment charges
 (859)
General and administrative expenses(21,023) (19,232)
 34,313
 22,471
Operating income99,390
 91,151
Other income (expenses):   
Interest and other income, net4,463
 533
Interest expense(20,000) (24,162)
Gain on debt extinguishment
 25
Income from continuing operations before income taxes83,853
 67,547
Income tax expense(10,329) (2,132)
Income from continuing operations73,524
 65,415
Discontinued operations:   
(Loss) income before gain on sales(8) 5,366
Gain on sale of depreciable properties132
 
           Income from discontinued operations124
 5,366
Net income73,648
 70,781
Net (income) loss attributable to noncontrolling interests(2) 71
Net income attributable to common unitholders$73,646
 $70,852
Basic net income per Common Unit:   
Continuing operations attributable to common unitholders$0.20
 $0.18
Discontinued operations attributable to common unitholders
 0.02
Total$0.20
 $0.20
Diluted net income per Common Unit:   
Continuing operations attributable to common unitholders$0.20
 $0.18
Discontinued operations attributable to common unitholders
 0.02
Total$0.20
 $0.20
Weighted average number of Common Units outstanding360,095
 358,598
Weighted average number of Common Units and potential dilutive securities360,400
 360,700
    
Comprehensive income:   
Net income$73,648
 $70,781
Other comprehensive loss:   
Amortization of interest contracts
 (256)
Comprehensive income$73,648
 $70,525
 Three Months Ended Six Months Ended
 2017 2016 2017 2016
Revenues:       
Rental and related revenue$165,836
 $157,910
 $337,512
 $318,497
General contractor and service fee revenue23,576
 26,044
 32,975
 49,195
 189,412
 183,954
 370,487
 367,692
Expenses:       
Rental expenses14,506
 17,017
 30,743
 37,752
Real estate taxes26,902
 24,899
 53,412
 49,685
General contractor and other services expenses22,374
 22,228
 29,998
 43,148
Depreciation and amortization67,013
 61,136
 129,036
 120,669
 130,795
 125,280
 243,189
 251,254
Other operating activities:       
Equity in earnings of unconsolidated companies51,933
 3,534
 56,682
 25,394
Gain on dissolution of unconsolidated company
 30,697
 
 30,697
Promote income20,007
 24,087
 20,007
 24,087
Gain on sale of properties34,341
 39,314
 71,387
 54,891
Gain on land sales1,279
 707
 2,784
 837
Other operating expenses(718) (836) (1,457) (2,072)
Impairment charges
 (5,651) (859) (12,056)
General and administrative expenses(11,858) (11,584) (31,090) (29,682)
 94,984
 80,268
 117,454
 92,096
Operating income153,601
 138,942
 244,752
 208,534
Other income (expenses):       
Interest and other income, net2,260
 567
 2,792
 3,090
Interest expense(21,680) (29,511) (44,566) (59,644)
 Loss on debt extinguishment(9,561) (2,430) (9,536) (2,430)
Acquisition-related activity
 (72) 
 (75)
Income from continuing operations before income taxes124,620
 107,496
 193,442
 149,475
Income tax (expense) benefit(5,426) 157
 (7,557) (186)
Income from continuing operations119,194
 107,653
 185,885
 149,289
Discontinued operations:       
Income before gain on sales11,095
 2,278
 15,185
 4,484
Gain on sale of depreciable properties1,109,091
 252
 1,109,091
 166
Income tax expense(11,613) 
 (11,613) 
           Income from discontinued operations1,108,573
 2,530
 1,112,663
 4,650
Net income1,227,767
 110,183
 1,298,548
 153,939
Net income attributable to noncontrolling interests(5,984) (15) (5,913) (26)
Net income attributable to common unitholders$1,221,783
 $110,168
 $1,292,635
 $153,913
Basic net income per Common Unit:       
Continuing operations attributable to common unitholders$0.33
 $0.30
 $0.52
 $0.43
Discontinued operations attributable to common unitholders3.07
 0.01
 3.08
 0.01
Total$3.40
 $0.31
 $3.60
 $0.44
Diluted net income per Common Unit:       
Continuing operations attributable to common unitholders$0.33
 $0.30
 $0.51
 $0.43
Discontinued operations attributable to common unitholders3.05
 0.01
 3.06
 0.01
Total$3.38
 $0.31
 $3.57
 $0.44
Weighted average number of Common Units outstanding358,952
 350,968
 358,776
 350,065
Weighted average number of Common Units and potential dilutive securities361,981
 354,433
 361,789
 352,227
        
Comprehensive income:       
Net income$1,227,767
 $110,183
 $1,298,548
 $153,939
Other comprehensive loss:       
Amortization of interest contracts and other(426) (295) (682) (590)
Comprehensive income$1,227,341
 $109,888
 $1,297,866
 $153,349


See accompanying Notes to Consolidated Financial Statements


DUKE REALTY LIMITED PARTNERSHIP AND SUBSIDIARIES
Consolidated Statements of Cash Flows
For the sixthree months ended June 30,March 31,
(in thousands)
(Unaudited)
 2018 2017
Cash flows from operating activities:   
Net income$73,648
 $70,781
Adjustments to reconcile net income to net cash provided by operating activities:   
Depreciation of buildings and tenant improvements63,944
 66,172
Amortization of deferred leasing and other costs13,585
 15,385
Amortization of deferred financing costs1,418
 1,316
Straight-line rental income and expense, net(6,288) (2,928)
Impairment charges
 859
Gain on debt extinguishment
 (25)
Gains on land and depreciated property sales(47,967) (38,551)
Third-party construction contracts, net(367) 714
Other accrued revenues and expenses, net19,862
 (3,733)
Equity in earnings in excess of operating distributions received from unconsolidated joint ventures(4,673) (282)
Net cash provided by operating activities113,162
 109,708
Cash flows from investing activities:   
Development of real estate investments(104,346) (112,727)
Acquisition of real estate investments and related intangible assets(22,801) (114,369)
Acquisition of undeveloped land(67,256) (50,436)
Second generation tenant improvements, leasing costs and building improvements(14,102) (10,431)
Other deferred leasing costs(9,798) (4,398)
Other assets39,183
 (4,186)
Proceeds from land and depreciated property sales, net131,380
 103,120
Capital distributions from unconsolidated joint ventures9,404
 4,858
Capital contributions and advances to unconsolidated joint ventures
 (297)
Net cash used for investing activities(38,336) (188,866)
Cash flows from financing activities:   
Contributions from the General Partner706
 786
Payments on unsecured debt(656) (616)
Payments on secured indebtedness including principal amortization(1,345) (17,539)
Borrowings on line of credit, net75,000
 189,000
Distributions to common unitholders(72,078) (68,184)
Distributions to noncontrolling interests
 (10)
Tax payments on stock-based compensation awards(7,984) (8,848)
Change in book cash overdrafts(33,448) 7,115
Deferred financing costs(285) (7)
 Net cash (used for) provided by financing activities(40,090) 101,697
Net increase in cash, cash equivalents and restricted cash34,736
 22,539
Cash, cash equivalents and restricted cash at beginning of period193,627
 57,038
Cash, cash equivalents and restricted cash at end of period$228,363
 $79,577
    
Non-cash investing and financing activities:   
Conversion of Limited Partner Units to common shares of the General Partner$
 $1,685
 2017 2016
Cash flows from operating activities:   
Net income$1,298,548
 $153,939
Adjustments to reconcile net income to net cash provided by operating activities:   
Depreciation of buildings and tenant improvements124,883
 126,594
Amortization of deferred leasing and other costs30,002
 31,365
Amortization of deferred financing costs2,672
 2,608
Straight-line rental income and expense, net(7,722) (5,768)
Impairment charges859
 12,056
Loss on debt extinguishment9,536
 2,430
Gain on dissolution of unconsolidated company
 (30,697)
Accrued promote income
 (24,087)
Gains on land and depreciated property sales(1,183,262) (55,894)
Third-party construction contracts, net(1,945) 723
Other accrued revenues and expenses, net4,179
 1,012
Operating distributions received less than equity in earnings from unconsolidated companies(46,303) (16,080)
Net cash provided by operating activities231,447
 198,201
Cash flows from investing activities:   
Development of real estate investments(288,833) (213,262)
Acquisition of real estate investments and related intangible assets(237,472) (16,029)
Acquisition of undeveloped land(67,923) (27,243)
Second generation tenant improvements, leasing costs and building improvements(20,112) (30,237)
Other deferred leasing costs(16,091) (14,993)
Other assets(828,707) 182,996
Proceeds from land and depreciated property sales, net1,977,127
 174,882
Capital distributions from unconsolidated companies111,557
 36,328
Capital contributions and advances to unconsolidated companies(2,039) (50,955)
Net cash provided by investing activities627,507
 41,487
Cash flows from financing activities:   
Contributions from the General Partner3,690
 99,844
Proceeds from unsecured debt
 375,000
Payments on unsecured debt(545,924) (75,668)
Payments on secured indebtedness including principal amortization(46,123) (348,743)
Repayments of line of credit, net(48,000) (71,000)
Distributions to common unitholders(136,388) (125,903)
Distributions to noncontrolling interests(41) (52)
Tax payments on stock-based compensation awards(9,003) (6,829)
Change in book overdrafts(13,470) (10,974)
Deferred financing costs(8) (6,196)
 Net cash used for financing activities(795,267) (170,521)
 Net increase in cash and cash equivalents63,687
 69,167
Cash and cash equivalents at beginning of period12,639
 22,533
Cash and cash equivalents at end of period$76,326
 $91,700
    
Non-cash investing and financing activities:   
Notes receivable from buyers in property sales$400,000
 $1,685
Conversion of Limited Partner Units to common shares of the General Partner$1,683
 $185
See accompanying Notes to Consolidated Financial Statements


DUKE REALTY LIMITED PARTNERSHIP AND SUBSIDIARIES
Consolidated Statement of Changes in Equity
For the sixthree months ended June 30, 2017March 31, 2018
(in thousands, except per unit data)
(Unaudited)
 Common Unitholders    
 General Limited Accumulated      
  Partner's Partners' Other Total    
 Common Equity Common Equity 
Comprehensive
Income
 Partners' Equity 
Noncontrolling
Interests
 Total Equity
Balance at December 31, 2016$3,465,136
 $24,691
 $682
 $3,490,509
 $2,784
 $3,493,293
Net income1,280,743
 11,892
 
 1,292,635
 5,913
 1,298,548
Other comprehensive loss
 
 (682) (682) 
 (682)
Capital contribution from the General Partner3,690
 
 
 3,690
 
 3,690
Stock-based compensation plan activity(1,972) 7,008
 
 5,036
 
 5,036
Conversion of Limited Partner Units to common shares of the General Partner1,683
 (1,683) 
 
 
 
Distributions to Partners ($0.38 per Common Unit)(135,131) (1,257) 
 (136,388) 
 (136,388)
Distributions to noncontrolling interests
 
 
 
 (41) (41)
Balance at June 30, 2017$4,614,149
 $40,651
 $
 $4,654,800
 $8,656
 $4,663,456
 Common Unitholders    
 General Limited      
  Partner's Partners' Total    
 Common Equity Common Equity Partners' Equity 
Noncontrolling
Interests
 Total Equity
Balance at December 31, 2017$4,532,844
 $40,563
 $4,573,407
 $971
 $4,574,378
Net income72,963
 683
 73,646
 2
 73,648
Capital contribution from the General Partner706
 
 706
 
 706
Stock-based compensation plan activity(1,610) 6,140
 4,530
 
 4,530
Distributions to common unitholders ($0.20 per Common Unit)(71,398) (680) (72,078) 
 (72,078)
Balance at March 31, 2018$4,533,505
 $46,706
 $4,580,211
 $973
 $4,581,184


See accompanying Notes to Consolidated Financial Statements


DUKE REALTY CORPORATION AND DUKE REALTY LIMITED PARTNERSHIP
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
 
1.    General Basis of Presentation
The interim consolidated financial statements included herein have been prepared by the General Partner and the Partnership. The 20162017 year-end consolidated balance sheet data included in this Report was derived from the audited financial statements in the combined Annual Report on Form 10-K of the General Partner and the Partnership for the year ended December 31, 20162017 (the "2016"2017 Annual Report"), but does not include all disclosures required by accounting principles generally accepted in the United States of America ("GAAP"). The financial statements have been prepared in accordance with GAAP for interim financial information and in accordance with Rule 10-01 of Regulation S-X of the Securities Exchange Act of 1934, as amended. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and revenue and expenses during the reporting period. Our actual results could differ from those estimates and assumptions. These financial statements should be read in conjunction with Management's Discussion and Analysis of Financial Condition and Results of Operations included herein and the consolidated financial statements and notes thereto included in the 20162017 Annual Report.
The General Partner was formed in 1985, and we believe that it qualifies as a REIT under the provisions of the Internal Revenue Code of 1986, as amended (the "Code"). The Partnership was formed on October 4, 1993, when the General Partner contributed all of its properties and related assets and liabilities, together with the net proceeds from an offering of additional shares of its common stock, to the Partnership. Simultaneously, the Partnership completed the acquisition of Duke Associates, a full-service commercial real estate firm operating in the Midwest whose operations began in 1972.
The General Partner is the sole general partner of the Partnership, owning approximately 99.1% of the Common Units at June 30, 2017.March 31, 2018. The remaining 0.9% of the Common Units are owned by Limited Partners.limited partners. As the sole general partner of the Partnership, the General Partner has full, exclusive and complete responsibility and discretion in the day-to-day management and control of the Partnership. The General Partner and the Partnership are operated as one enterprise. The management of the General Partner consists of the same members as the management of the Partnership. As the sole general partner with control of the Partnership, the General Partner consolidates the Partnership for financial reporting purposes, and the General Partner does not have any significant assets other than its investment in the Partnership. Therefore, the assets and liabilities of the General Partner and the Partnership are substantially the same.
Limited Partnerspartners have the right to redeem their Limited Partner Units, subject to certain restrictions. Pursuant to the Fifth Amended and Restated Agreement of Limited Partnership, as amended (the "Partnership Agreement"), the General Partner is obligated to redeem the Limited Partner Units in shares of its common stock, unless it determines in its reasonable discretion that the issuance of shares of its common stock could cause it to fail to qualify as a REIT. Each Limited Partner Unit shall be redeemed for one share of the General Partner's common stock, or, in the event that the issuance of shares could cause the General Partner to fail to qualify as a REIT, cash equal to the fair market value of one share of the General Partner's common stock at the time of redemption, in each case, subject to certain adjustments described in the Partnership Agreement. The Limited Partner Units are not required, per the terms of the Partnership Agreement, to be redeemed in registered shares of the General Partner.
During the three months ended June 30, 2017, we substantially completed the disposition of our medical office portfolio (the "Medical Office Portfolio Disposition", see Note 5) and exited from the medical office product segment. As of June 30, 2017,March 31, 2018, we owned and operated a portfolio primarily consisting of industrial properties and provided real estate services to third-party owners. Substantially all of our Rental Operations (see Note 9) are conducted through the Partnership. We conduct our Service Operations (see Note 9) through Duke Realty Services, LLC, Duke Realty Services Limited Partnership and Duke Construction Limited Partnership ("DCLP"), which are consolidated entities that are 100% owned by a combination of the General Partner and the Partnership. DCLP is

owned through a taxable REIT subsidiary. The consolidated financial statements include our accounts and the accounts of our majority-owned or controlled subsidiaries.

2.    New Accounting Pronouncements
Business CombinationsRecently Adopted Accounting Pronouncements
InRevenue Recognition and De-recognition of Non-Financial Assets
On January 2017,1, 2018, we concurrently adopted Accounting Standards Codification ("ASC") 606, Revenue from Contracts with Customers ("ASC 606") and ASC 610-20, Other Income: Gains and Losses from the FASB issued ASU 2017-01, Business Combinations: ClarifyingDe-recognition of Non-financial Assets ("ASC 610-20") using a modified retrospective ("cumulative effect") method of adoption. ASC 606 has superseded nearly all existing GAAP revenue recognition guidance, although its scope excludes lease contracts which represent our primary source of revenue. The standard’s core principle is that a company will recognize revenue when it satisfies performance obligations, by transferring promised goods or services to customers, in an amount that reflects the Definitionconsideration to which the company expects to be entitled in exchange for fulfilling those performance obligations.
General Contractor and Service Fee Revenue
Beginning with the January 1, 2018 adoption date, general contractor and service fee revenues, as presented on the Consolidated Statements of Operations, are accounted for within the scope of ASC 606. General contractor and service fee revenues are comprised primarily of construction and development related revenues earned from third parties while acting in capacity of a Business ("ASU 2017-01")developer, as a general contractor or a construction manager. There are other ancillary streams of revenue included in general contractor and service fee revenues (see Note 9), such as management fees earned from unconsolidated joint ventures, which are not significant. Opening and closing balances of construction receivables are presented separately on the Consolidated Balance Sheets. Over billed construction receivables totaled $295,000 and $276,000 at March 31, 2018 and December 31, 2017, respectively. We generally do not have any contract assets associated with our construction arrangements.
Our construction arrangements are typically structured with only one performance obligation, which generally represents either an obligation to construct a new building or to construct fixtures in an existing building, and these single performance obligations are satisfied over time as construction progresses. We recognize revenue as we satisfy such performance obligations using the percentage of completion method, which is an input method allowed under ASC 606. Using this method, profits are recorded based on our estimates of the percentage of completion of individual contracts, commencing when the work performed under the contracts reaches a point where the final costs can be estimated with reasonable accuracy. The percentage of completion estimates are based on a comparison of the contract expenditures incurred to the estimated final costs. We believe the percentage of completion method is a faithful depiction of the transfer of goods and services as changes in job performance and estimated profitability, which result in revisions to costs and income and are recognized in the period in which the revisions are determined, have not historically been significant. We typically receive regular progress payments on the majority of our construction arrangements and such arrangements generally have an original duration of less than one year.
As the result of the relatively short duration of our construction arrangements, we have elected to apply the optional disclosure exemptions, included in ASC 606, related to our remaining performance obligations for our in-process construction projects, for which any future variable consideration is not material.
De-Recognition of Non-Financial Assets
ASC 610-20 provides guidance on how entities recognize sales, including partial sales, of non-financial assets (and in-substance non-financial assets) to non-customers. ASC 606 includes guidance governing the sale of non-financial assets with customers, while sales of non-financial assets to non-customers are governed by ASC 610-20. The only difference in the treatment of sales to customers and non-customers is the presentation in the Consolidated Statements of Operations (revenue and expense is reported when the sale is to a customer and net gain or loss is reported when the sale is to a non-customer). ASU 2017-01 provides revised guidance to determineBased on the nature of our business, we have concluded that our property sales represent transactions with non-customers. In the typical course of our business, sales of non-financial assets represent only one performance obligation and are recognized when an acquisition meetsenforceable contract is in place, collectability is ensured and control is transferred to the definition ofbuyer.

ASC 610-20 also requires the seller to recognize a businessfull gain or should be accounted for as an asset acquisition, likely resulting in more acquisitions being accounted for as asset acquisitions as opposed to business combinations. Transaction costs are capitalized for asset acquisitions while they are expensed as incurred for business combinations. ASU 2017-01 requires that when substantially all of the fair value of an acquisition is concentratedloss in a single identifiable asset or a grouppartial sale of similar identifiablenon-financial assets, it does not meet the definition of a business. ASU 2017-01 also revises the definition of a business to include, at a minimum, an input and a substantive process that together significantly contribute to the abilityextent control is not retained. Any noncontrolling interest retained by the seller would, accordingly, be measured at fair value. We have primarily disposed of property and land in all cash transactions with no contingencies and no future involvement in the operations, and therefore, the adoption of ASC 610-20 has not significantly impacted the recognition of property and land sales.
There was no cumulative adjustment recognized to create an output. ASU 2017-01 will be effective, on a prospective basis, for annual and interim reporting periods beginning after December 15, 2017, with early adoption permitted. We adopted ASU 2017-01 prospectivelyretained earnings as of January 1, 20172018 as permitted under the standard, which has not had a material impact to the consolidated financial statements.result of adopting ASC 606 and ASC 610-20.
Restricted Cash
In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows: Restricted Cash ("ASU 2016-18"). ASU 2016-18 requires entities to show the changes in the total of cash, cash equivalents and restricted cash in the statement of cash flows. As a result, entities will no longer present transfers between cash, cash equivalents and restricted cash in the statement of cash flows. ASU 2016-18 will be effective for us retrospectively for annualWe adopted this standard on January 1, 2018, on a retrospective basis, and interim reporting periods beginning after December 15, 2017 with earlythe adoption permitted. We dodid not believe ASU 2016-18 will have a material impact on our consolidated financial statements.
The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Consolidated Statements of Cash Flows (in thousands):
 March 31,
2018
 December 31,
2017
Cash and cash equivalents$160,861
 $67,562
Restricted cash held in escrow for like-kind exchange59,196
 116,405
Restricted cash included in other escrow deposits and other assets8,306
 9,660
Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows$228,363
 $193,627

Restricted cash held in escrow for like-kind exchange on the Consolidated Balance Sheets includes cash received from the property dispositions but restricted only for qualifying like-kind exchange transactions.
Statement of Cash Flows


In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows ("ASU 2016-15"). ASU 2016-15 clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows and how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. ASU 2016-15 will be effective for us retrospectively for annual and interim reporting periods beginning after December 15, 2017 with early adoption permitted. We do not believe ASU 2016-15 will haveadopted this standard on January 1, 2018, on a material impact on our consolidated financial statements.

Stock Compensation

In March 2016, the FASB issued ASU 2016-09, Stock Compensation: Improvements to Employee Share-Based Payment Accounting ("ASU 2016-09"), which simplifies certain aspects of accounting for share-based payment transactions, including income tax consequences, forfeituresretrospective basis, and the classification of amounts paid to taxing authorities when shares are withheld to cover employee tax withholdings for certain stock based compensation plans in the statements of cash flows. ASU 2016-09 was effective for us as of January 1, 2017 andadoption did not have a material impact on our consolidated financial statements.


New Accounting Pronouncement Not Yet Adopted
Leases
In February 2016, the FASB issued ASU 2016-02, Leases ("ASU 2016-02"), which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e. lessees and lessors). ASU 2016-02 supersedes existing leasing standards.

For lessors, the accounting under ASU 2016-02 requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases.will remain largely unchanged from current GAAP; however ASU 2016-02 also requires that lessors expense certain initial direct costs, which are capitalizable under existing leasing standards, as incurred.

ASU 2016-02 also specifies that payments for certain lease-related services, which are often included in lease agreements, represent "non-lease" components that will become subject to the guidance in ASU 2014-09, Revenue from Contracts with Customers ASC 606, when ASU 2016-02 becomes effective. We are currently evaluatingThe FASB recently clarified that only new or modified leases subsequent to adoption of ASU 2016-02 will require different accounting for "non-lease" components under the materiality,guidance in ASC 606. Additionally, on March 28, 2018 the FASB tentatively approved amendments to ASU

2016-02 (the "Approved Amendments"), which, if ultimately finalized as an amendment to ASU 2016-02, will allow lessors an optional election to not separate "non-lease" components from the related lease components. This election would be contingent upon certain conditions being met, including a requirement that separating the "non-lease" components would not result in a change in the timing and presentation and disclosure impacts,pattern of this accounting change.

the revenue recognition.
ASU 2016-02 requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification will determine whether the lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. ASU 2016-02 will impact the accounting and disclosure requirements for the ground leases, and other operating leases, where we are the lessee.

ASU 2016-02 will be effective for us on January 1, 2019 under athe modified retrospective approach, for annual and interim reporting periods beginning after December 15, 2018, with early adoption permitted.
A set of practical expedients for implementation, which must be elected as a package and for all leases, may also be elected. These practical expedients include (i) relief from re-assessing whether an expired or existing contract meets the definition of a lease, (ii) relief from re-assessing the classification of expired or existing leases at the adoption date for expired or existing leases, althoughand (iii) allowing previously capitalized initial direct leasing costs to continue to be amortized. In addition to these practical expedients, the Approved Amendments also include an option that would allow lessors to use the effective date of ASU 2016-02 as the date of initial application, without restating comparative periods, and to recognize a right-of-use asset and lease liability would still be recorded for such leases.cumulative effect adjustment as of the effective date. We are currently assessing the method of adoption and the impact that ASU 2016-02 will have on our consolidated financial statements but have tentatively concluded that we will apply the practical expedients.

Revenue Recognition
In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers ("ASU 2014-09"). ASU 2014-09 is a comprehensive revenue recognition standard that will supersede nearly all existing GAAP revenue recognition guidanceexpedients as well as impact the existing GAAP guidance governing the sale of non-financial assets. The standard’s core principle is that a company will recognize revenue when it satisfies performance obligations, by transferring promised goods or services to customers, in an amount that reflects the consideration to which the company expects to be entitled in exchange for fulfilling those performance obligations. In doing so, companies will need to exercise more judgment and make more estimates than under existing GAAP guidance.
ASU 2014-09 also created guidance governing the sale of non-financial assets with customers and non-customers with the only difference in the treatment of these transactions being presentation in the statement of operations (revenue and expense is reported when the sale is to a customer and net gain or loss is reported when the sale is to a non-customer). Based on the nature of our business, we believe that our property sales represent transactions with non-customers.
In February 2017, the FASB issued ASU 2017-05, Other Income: Gains and Losses from the Derecognition of Nonfinancial Assets (“ASU 2017-05”). ASU 2017-05 provides guidance on how entities recognize sales, including partial sales, of nonfinancial assets (and in-substance nonfinancial assets) to noncustomers. ASU 2017-05 requires the seller to recognize a full gain or loss in a partial sale of nonfinancial assets, to the extent control is not retained. Any noncontrolling interest retainedoptional relief provided by the seller would, accordingly,Approved Amendments, should they be measured at fair value.
Both ASU 2014-09 and ASU 2017-05 will be effective for public entities for annual and interim reporting periods beginning after December 15, 2017 and early adoption is permitted in periods ending after December 15, 2016. ASU 2014-09 and ASU 2017-05 allow for either full or modified retrospective ("cumulative effect") adoption. Both standards must be adopted concurrently. We have tentatively concluded that we will adopt both ASU 2014-09 and ASU 2017-05 using the cumulative effect method.

We have evaluated each of our revenue streams under ASU 2014-09 and determined that our revenues that will be impacted by this standard primarily include construction and development fees charged to third parties, fees for services performed for unconsolidated joint ventures and sales of real estate. We expect that the amount and timing of revenue recognition from these revenue streams referenced above will be generally consistent with our current

measurement and pattern of recognition. In addition, the pattern of recognition for sales of real estate is not expected to change significantly. We have primarily disposed of property and land in all cash transactions with no contingencies and no future involvement in the operations, and therefore, do not expect ASU 2017-05 to significantly impact the recognition of property and land sales.finalized.
3.    Reclassifications
Certain amounts in the accompanying consolidated financial statements for 2016, includingthat have been reclassified to conform to the 2018 consolidated financial statement presentation include the change in presentation for the medical office properties determined to be discontinued operations (see Note 10) and the tax payments on stock-based compensation awards pursuant to ASU 2016-09, have been reclassified to conform to the 2017 consolidated financial statement presentation..
4.    Variable Interest Entities
Partnership
Due to the fact that the Limited Partners do not have kick out rights, or substantive participating rights, the Partnership is a variable interest entity ("VIE"). Because the General Partner holds majority ownership and exercises control over every aspect of the Partnership's operations, the General Partner has been determined as the primary beneficiary and, therefore, consolidates the Partnership.


The assets and liabilities of the General Partner and the Partnership are substantially the same, as the General Partner does not have any significant assets other than its investment in the Partnership. All of the Company's debt is an obligation of the Partnership.


Unconsolidated Joint Ventures


We have equity interests in unconsolidated joint ventures that primarily own and operate rental properties or hold land for development. We consolidate those joint ventures that are considered to be VIEs where we are the primary beneficiary. We analyze our investments in joint ventures to determine if the joint venture is considered a VIE and would require consolidation. We (i) evaluate the sufficiency of the total equity investment at risk, (ii) review the voting rights and decision-making authority of the equity investment holders as a group and whether there are

limited partners (or similar owning entities) that lack substantive participating or kick out rights and (iii) establish whether or not activities within the venture are on behalf of an investor with disproportionately few voting rights in making this VIE determination.


To the extent that we own interests in a VIE and we (i) are the sole entity that has the power to direct the activities of the VIE and (ii) have the obligation or rights to absorb the VIE's losses or receive its benefits, then we would be determined to be the primary beneficiary and would consolidate the VIE. To the extent we own interests in a VIE, then at each reporting period, we re-assess our conclusions as to which, if any, party within the VIE is considered the primary beneficiary. Consolidated joint ventures that are VIEs are not significant in any period presented in these consolidated financial statements.


To the extent that our joint ventures do not qualify as VIEs, they are consolidated if we control them through majority ownership interests or if we are the managing entity (general partner or managing member) and ourthe other partner does not have substantive participating rights. Control is further demonstrated by our ability to unilaterally make significant operating decisions, refinance debt and sell the assets of the joint venture without the consent of the non-managing entity and the inability of the non-managing entity to remove us from our role as the managing entity. Consolidated joint ventures that are not VIEs are not significant in any period presented in these consolidated financial statements.


There were no unconsolidated joint ventures, in which we have any recognized assets or liabilities or have retained any economic exposure to loss at June 30, 2017March 31, 2018, that met the criteria to be considered VIEs. Our maximum loss

exposure for guarantees of unconsolidated joint venture indebtedness, none of which relate to VIEs, totaled $66.7$102.9 million at June 30, 2017.March 31, 2018.


5.    Acquisitions and Dispositions


Acquisitions and dispositions for the periods presented were completed in accordance with our strategy to reposition our investment concentration among the product types and markets in which we operate and to increase our overall investments in quality industrial projects. With the exception of certain properties that have been sold or classified as held for sale, the results of operations for all acquired properties have been included in continuing operations within our consolidated financial statements since their respective dates of acquisition. Transaction costs related to asset acquisitions are capitalized and transaction costs related to business combinations and dispositions are expensed.


Acquisitions


We acquired 11two properties during the sixthree months ended June 30, 2017.March 31, 2018. We determined that the 11these two properties acquired during the six months ended June 30, 2017 did not meet the revised definition of a business as the result of adopting ASU 2017-01 and, accordingly, we accounted for them as asset acquisitions as opposed to business combinations.


The following table summarizes amounts recognized for each major class of assets and liability (in thousands) for these acquisitions during the sixthree months ended June 30, 2017:March 31, 2018:
Real estate assets$21,537
Lease related intangible assets1,693
Total acquired assets23,230
Below market lease liability367
Fair value of acquired net assets$22,863
Real estate assets$228,516
Lease related intangible assets11,178
Fair value of acquired net assets$239,694

The leases in the acquired properties had a weighted average remaining life at acquisition of approximately 6.97.4 years.

Fair Value Measurements
     
We determine the fair value of the individual components of real estate asset acquisitions primarily through calculating the "as-if vacant" value of a building, using an income approach, which relies significantly upon internally determined assumptions. We have determined that these estimates primarily rely upon level 3 inputs, which are unobservable inputs based on our own assumptions. The most significant assumptions used in calculating the "as-if vacant" value for acquisition activity during the sixthree months ended June 30, 2017March 31, 2018 are as follows:
 LowHigh
Exit capitalization rate4.50%4.50%
Net rental rate per square foot$9.12$10.20
 LowHigh
Discount rate5.81%6.82%
Exit capitalization rate4.31%5.32%
Lease-up period (months)912
Net rental rate per square foot - Industrial$3.50$5.70

Capitalized acquisition costs were insignificant and the fair value of the 11two properties acquired during the sixthree months ended June 30, 2017March 31, 2018 was substantially the same as the cost of acquisition.
Dispositions
Dispositions of buildings (see Note 10 for the number of buildings sold as well as for their classification between continuing and discontinued operations) and undeveloped land generated net cash proceeds of $1.98 billion$131.4 million and $174.9$103.1 million during the sixthree months ended June 30,March 31, 2018 and 2017, and 2016, respectively.


Dispositions for the six months ended June 30, 2017 included 77 consolidated properties sold as part The number of the Medical Office Portfolio Disposition to a subsidiary of Healthcare Trust of America, Inc. ("HTA"),buildings sold, as well as certain other buyers, for a total sales price of $2.35 billiontheir classification between continuing and a gain on sale of $1.14 billion. The Medical Office Portfolio Disposition was executed in connection with our strategy to focus solely on the industrial real estate product type.

A portion of the sale price for the Medical Office Portfolio Disposition was financed through either unsecured notes, or first mortgage interests in a portion of the sold properties, that we provided to HTA and other buyers, totaling $400.0 million, which is reflected within notes receivable from property sales in the Consolidated Balance Sheets. These instruments mature at various points over the next three years and all bear interest rates at 4.0%. We concluded that the value, and the rate of interest, for these financial instruments would approximate fair value as computed using an income approach and that this determination of fair value was primarily based upon level 3 inputs. We have reviewed the creditworthiness of the borrowers and have concluded it is probable that we will collect all amounts due according to their contractual terms.

In connection with the Medical Office Portfolio Disposition, during the six months ended June 30, 2017 we received $105.3 million for the sale of our interest in two unconsolidated joint ventures whose underlying assets were comprised of medical office properties, which is reflected within Capital Distributions from Unconsolidated Companies within the Consolidated Statements of Cash Flows. We recorded $47.5 million of income related to the sale of our interests in these unconsolidated joint ventures within equity in earnings in the Consolidated Statements of Operations and Comprehensive Income. In connection with the sale of our interest in one of these unconsolidated joint ventures, we also recorded promote income (additional incentive-based cash distributions from the joint venture, in excess of our ownership interest) of $20.0 million from the sale of our share interest, which is reflected as a separate line item in the Consolidated Statements of Operations and Comprehensive Income and reflected within net cash provided by operating activities within the Consolidated Statements of Cash Flows. In connection with the sale, we recorded income tax expense totaling $19.7 million including $11.6 million classified within discontinued operations, and $8.0 million classified within continuing operationsis disclosed in the Consolidated Statements of Operations and Comprehensive Income.Note 10.


6.    Indebtedness
All debt is heldissued directly or indirectly by the Partnership. The General Partner does not have any indebtedness, but does guarantee some of the unsecured debt of the Partnership. The following table summarizes the book value and changes in the fair value of our debt (in thousands):
 Book Value at 12/31/2017 Book Value at 3/31/2018 Fair Value at 12/31/2017 
Issuances and
Assumptions
 Payments/Payoffs 
Adjustments
to Fair Value
 Fair Value at 3/31/2018
Fixed rate secured debt$309,463
 $308,099
 $325,753
 $
 $(1,345) $(3,756) $320,652
Variable rate secured debt2,500
 2,500
 2,500
 
 
 
 2,500
Unsecured debt2,132,042
 2,131,386
 2,190,548
 
 (656) (60,502) 2,129,390
Unsecured line of credit
 75,000
 
 75,000
 
 
 75,000
Total$2,444,005
 $2,516,985
 $2,518,801
 $75,000
 $(2,001) $(64,258) $2,527,542
Less: Deferred financing costs21,114
 20,529
          
Total indebtedness as reported on the consolidated balance sheets$2,422,891
 $2,496,456
          

 Book Value at 12/31/2016 Book Value at 6/30/2017 Fair Value at 12/31/2016 Payments/Payoffs 
Adjustments
to Fair Value
 Fair Value at 6/30/2017
Fixed rate secured debt$381,894
 $335,713
 $415,231
 $(46,123) $(9,180) $359,928
Variable rate secured debt2,800
 2,800
 2,800
 
 
 2,800
Unsecured debt2,498,835
 1,961,982
 2,568,034
 (536,853) 12,339
 2,043,520
Unsecured line of credit48,000
 
 48,000
 (48,000) 
 
Total$2,931,529
 $2,300,495
 $3,034,065
 $(630,976) $3,159
 $2,406,248
Less: Deferred financing costs23,052
 20,367
        
Total indebtedness as reported on the consolidated balance sheets$2,908,477
 $2,280,128
        


Secured Debt


Because our fixed rate secured debt is not actively traded in any marketplace, we utilized a discounted cash flow methodology to determine its fair value. Accordingly, we calculated fair value by applying an estimate of the current market rate to discount the debt's remaining contractual cash flows. Our estimate of a current market rate, which is the most significant input in the discounted cash flow calculation, is intended to replicate debt of similar maturity and loan-to-value relationship. The estimated rates ranged from 3.20%3.90% to 3.70%4.00%, depending on the attributes of the

specific loans. The current market rates we utilized were internally estimated; therefore, we have concluded that our determination of fair value for our fixed rate secured debt was primarily based upon level 3 inputs.


During the sixthree months ended June 30, 2017,March 31, 2018, we repaid threeone fixed rate secured loans,loan, totaling $42.9 million,$215,000, which had a weighted average stated interest rate of 5.88%5.55%.



Unsecured Debt


At June 30, 2017,March 31, 2018, all of our unsecured debt bore interest at fixed rates and primarily consisted of unsecured notes that are publicly traded. We utilized broker estimates in estimating the fair value of our fixed rate unsecured debt. Our unsecured notes are thinly traded and, in certain cases, the broker estimates were not based upon comparable transactions. The broker estimates took into account any recent trades within the same series of our fixed rate unsecured debt, comparisons to recent trades of other series of our fixed rate unsecured debt, trades of fixed rate unsecured debt from companies with profiles similar to ours, as well as overall economic conditions. We reviewed these broker estimates for reasonableness and accuracy, considering whether the estimates were based upon market participant assumptions within the principal and most advantageous market and whether any other observable inputs would be more accurate indicators of fair value than the broker estimates. We concluded that the broker estimates were representative of fair value. We have determined that our estimation of the fair value of our fixed rate unsecured debt was primarily based upon level 3 inputs. The estimated trading values of our fixed rate unsecured debt, depending on the maturity and coupon rates, ranged from 98.00%95.00% to 128.00%122.00% of face value.
The indentures (and related supplemental indentures) governing our outstanding series of unsecured notes also require us to comply with financial ratios and other covenants regarding our operations. We were in compliance with all such financial covenants at June 30, 2017.March 31, 2018.

In June 2017, we repaid our $250.0 million variable rate term loan, which had a scheduled maturity date of January 2019 and bore interest at LIBOR plus 1.00%, and recognized a loss of $523,000 from the write-off of unamortized deferred financing costs. We also repaid $285.6 million of senior unsecured notes that had a stated interest rate of 6.50% and an effective interest rate of 6.08%, which had a scheduled maturity in January 2018, and recognized a loss of $9.0 million including the repayment premium and the write-off of unamortized deferred financing costs.


Unsecured Line of Credit
Our unsecured line of credit at June 30, 2017March 31, 2018 is described as follows (in thousands):
Description
Borrowing
Capacity
 Maturity Date Outstanding Balance at March 31, 2018
Unsecured Line of Credit - Partnership$1,200,000
 
January 30, 2022
 $75,000

Description
Borrowing
Capacity
 Maturity Date Outstanding Balance at June 30, 2017
Unsecured Line of Credit - Partnership$1,200,000
 January 2019 $


The Partnership's unsecured line of credit has an interest rate on borrowings of LIBOR plus 0.93%0.875% (equal to 2.75% for outstanding borrowings at March 31, 2018) and has a maturity date of January 2019, which may be extended by a year at our option.30, 2022, with options to extend until January 30, 2023. Subject to certain conditions, the terms also include an option to increase the facility by up to an additional $400.0$800.0 million, for a total of up to $1.60$2.00 billion. This line of credit provides us with an option to obtain borrowings from financial institutions that participate in the line at rates that may be lower than the stated interest rate, subject to certain restrictions.
This line of credit contains financial covenants that require us to meet certain financial ratios and defined levels of performance, including those related to fixed charge coverage, unsecured interest expense coverage and debt-to-asset value (with asset value being defined in the Partnership's unsecured line of credit agreement). At June 30, 2017, March 31, 2018, we were in compliance with all financial covenants under this line of credit.
To the extent that there are outstanding borrowings, weWe utilize a discounted cash flow methodology in order to estimate the fair value of outstanding borrowings on our unsecured line of credit. To the extent that credit spreads have changed since the origination of the line of credit, the net present value of the difference between future contractual interest payments and future interest payments based on our estimate of a current market rate would represent the difference between

the book value and the fair value. Our estimate of a current market rate is based upon the rate, considering current market conditions and our specific credit profile, at which we estimate we could obtain similar borrowings. As our credit spreads have not changed appreciably, we believe that the contractual interest rate and the current market rate on the line of credit are the same. To the extent there are outstanding borrowings, thisThe current market rate is internally estimated and therefore would beis primarily based upon a level 3 input.
      
7.    Related Party Transactions
We provide property management, asset management, leasing, construction and other tenant-related services to unconsolidated companiesjoint ventures in which we have equity interests. We recorded the corresponding fees based on contractual terms that approximate market rates for these types of services and have eliminated our ownership

percentage of these fees in the consolidated financial statements. The following table summarizes the fees earned from these companies,joint ventures, prior to the elimination of our ownership percentage (in thousands): 
 Three Months Ended
 March 31,
 2018 2017
Management fees$442
 $811
Leasing fees302
 434
Construction and development fees697
 624
 Three Months Ended Six Months Ended
 June 30, June 30,
 2017 2016 2017 2016
Management fees$718
 $1,291
 $1,529
 $2,550
Leasing fees80
 1,053
 514
 1,432
Construction and development fees1,062
 2,239
 1,685
 5,359

8.    Net Income Perper Common Share or Common Unit
Basic net income per common share or Common Unit is computed by dividing net income attributable to common shareholders or common unitholders, less dividends or distributions on share-based awards expected to vest (referred to as "participating securities" and primarily composed of unvested restricted stock units), by the weighted average number of common shares or Common Units outstanding for the period.
Diluted net income per common share is computed by dividing the sum of net income attributable to common shareholders and the noncontrolling interest in earnings allocable to Limited Partner Units (to the extent the Limited Partner Units are dilutive), less dividends or distributions on participating securities that are anti-dilutive, by the sum of the weighted average number of common shares outstanding and, to the extent they are dilutive, weighted average number of Limited Partner Units outstanding and any potential dilutive securities for the period. Diluted net income per Common Unit is computed by dividing the net income attributable to common unitholders, less dividends or distributions on participating securities that are anti-dilutive, by the sum of the weighted average number of Common Units outstanding and any potential dilutive securities for the period. The following table reconciles the components of basic and diluted net income per common share or Common Unit (in thousands): 

 Three Months Ended March 31,
 2018 2017
General Partner   
Net income attributable to common shareholders$72,963
 $70,200
Less: dividends on participating securities(437) (542)
Basic net income attributable to common shareholders72,526
 69,658
Add back dividends on dilutive participating securities
 305
Noncontrolling interest in earnings of common unitholders683
 652
Diluted net income attributable to common shareholders$73,209
 $70,615
Weighted average number of common shares outstanding356,740
 355,282
Weighted average Limited Partner Units outstanding3,355
 3,316
Other potential dilutive shares305
 2,102
Weighted average number of common shares and potential dilutive securities360,400
 360,700
    
Partnership   
Net income attributable to common unitholders$73,646
 $70,852
Less: distributions on participating securities(437) (542)
Basic net income attributable to common unitholders$73,209
 $70,310
Add back distributions on dilutive participating securities
 305
Diluted net income attributable to common unitholders$73,209
 $70,615
Weighted average number of Common Units outstanding360,095
 358,598
Other potential dilutive units305
 2,102
Weighted average number of Common Units and potential dilutive securities360,400
 360,700

 Three Months Ended June 30, Six Months Ended June 30,
 2017 2016 2017 2016
General Partner       
Net income attributable to common shareholders$1,210,543
 $109,067
 $1,280,743
 $152,374
Less: dividends on participating securities(540) (582) (1,083) (1,171)
Basic net income attributable to common shareholders1,210,003
 108,485
 1,279,660
 151,203
Add back dividends on dilutive participating securities540
 582
 1,083
 569
Noncontrolling interest in earnings of common unitholders11,240
 1,101
 11,892
 1,539
Diluted net income attributable to common shareholders$1,221,783
 $110,168
 $1,292,635
 $153,311
Weighted average number of common shares outstanding355,647
 347,464
 355,466
 346,564
Weighted average Limited Partner Units outstanding3,305
 3,504
 3,310
 3,501
Other potential dilutive shares3,029
 3,465
 3,013
 2,162
Weighted average number of common shares and potential dilutive securities361,981
 354,433
 361,789
 352,227
        
Partnership       
Net income attributable to common unitholders$1,221,783
 $110,168
 $1,292,635
 $153,913
Less: distributions on participating securities(540) (582) (1,083) (1,171)
Basic net income attributable to common unitholders$1,221,243
 $109,586
 $1,291,552
 $152,742
Add back distributions on dilutive participating securities540
 582
 1,083
 569
Diluted net income attributable to common unitholders$1,221,783
 $110,168
 $1,292,635
 $153,311
Weighted average number of Common Units outstanding358,952
 350,968
 358,776
 350,065
Other potential dilutive units3,029
 3,465
 3,013
 2,162
Weighted average number of Common Units and potential dilutive securities361,981
 354,433
 361,789
 352,227
The following table summarizes the data that is excluded from the computation of net income per common share or Common Unit as a result of being anti-dilutive (in thousands):

 Three Months Ended March 31,
 2018 2017
General Partner and Partnership   
Other potential dilutive shares or units:   
Anti-dilutive outstanding potential shares or units under fixed stock option and other stock-based compensation plans
 
Anti-dilutive outstanding participating securities2,272
 1,389
 Three Months Ended June 30, Six Months Ended June 30,
 2017 2016 2017 2016
General Partner and Partnership       
Other potential dilutive shares or units:       
Anti-dilutive outstanding potential shares or units under fixed stock option and other stock-based compensation plans
 170
 
 307
Anti-dilutive outstanding participating securities
 
 
 1,706

9.    Segment Reporting
Reportable Segments
During the three monthsyear ended June 30,December 31, 2017, we substantially completed the Medicaldisposition of our medical office portfolio (the "Medical Office Portfolio Disposition,Disposition"), which resulted in all of our in-service medical office properties being classified within discontinued operations with the exception of a property that did not meet the criteria for classification as held for sale at June 30, 2017 (see Note 10).March 31, 2018. As a result of this transaction, beginning the second quarter of 2017, our medical office properties arewere no longer presented as a separate reportable segment, at June 30, 2017, with substantially all current and prior periodsuch operating results being classified within discontinued operations. The remaining medical office property included in continuing operations no longer meets the quantitative thresholds for separate presentation, and is classified as part of our non-reportable Rental Operations. Properties that are not included in our reportable segments, because they do not by themselves meet the quantitative thresholds for separate presentation as a reportable segment, are generally referred to as non-reportable Rental Operations. Our non-reportable Rental Operations primarily include our remaining office properties and medical office property at June 30, 2017.March 31, 2018.


As of June 30, 2017, after consideration of the Medical Office Portfolio Disposition,March 31, 2018, we had two reportable operating segments, the first consisting of the ownership and rental of industrial real estate investments. AllOur ongoing investments in new real estate investments are determined largely upon anticipated geographic trends in supply and demand for industrial buildings, as well as the real estate needs of our major tenants that operate on a national level. Our strategic initiatives and our allocation of resources have been historically based upon allocation among product types, which was consistent with our designation of reportable segments, and after having sold nearly all of our office and medical office properties we intend to increase our investment in industrial properties across the markets in which we operate are aggregated into oneand treat them as a single operating and reportable segment as they

have similar economic characteristics and we provide similar leasing arrangements and services to similar types of, and in many cases, the same tenants.segment. The operations of our industrial properties, as well as our non-reportable Rental Operations, are collectively referred to as "Rental Operations."

Our second reportable segment consists of various real estate services such as property management, asset management, maintenance, leasing, development, general contracting and construction management to third-party property owners and joint ventures, and is collectively referred to as "Service Operations." OurThe Service Operations segment is identified as one single operating segment because the lowest level of financial results reviewed by our chief operating decision maker are the results for the Service Operations segment in total. Further, our reportable segments are managed separately because each segment requires different operating strategies and management expertise.expertise.


Revenues by Reportable Segment


The following table shows the revenues for each of the reportable segments, as well as a reconciliation to consolidated revenues (in thousands): 

 Three Months Ended June 30, Six Months Ended June 30, Three Months Ended March 31,
 2017 2016 2017 2016 2018 2017
Revenues            
Rental Operations:            
Industrial $162,559
 $140,219
 $319,441
 $283,199
 $189,315
 $156,882
Non-reportable Rental Operations 3,182
 14,054
 17,598
 29,959
 3,453
 14,416
Service Operations 23,576
 26,044
 32,975
 49,195
 41,101
 9,399
Total segment revenues 189,317
 180,317
 370,014
 362,353
 233,869
 180,697
Other revenue 95
 3,637
 473
 5,339
 688
 378
Consolidated revenue from continuing operations 189,412
 183,954
 370,487
 367,692
 234,557
 181,075
Discontinued operations 35,165
 42,736
 81,404
 84,181
 5
 46,239
Consolidated revenue $224,577
 $226,690
 $451,891
 $451,873
 $234,562
 $227,314



Supplemental Performance Measure


Property-level net operating income on a cash basis ("PNOI") is the non-GAAP supplemental performance measure that we use to evaluate the performance of, and to allocate resources among, the real estate investments in the reportable and operating segments that comprise our Rental Operations. PNOI for our Rental Operations segments is comprised of rental revenues from continuing operations less rental expenses and real estate taxes from continuing operations, along with certain other adjusting items (collectively referred to as "Rental Operations revenues and expenses excluded from PNOI," as shown in the following table). Additionally, we do not allocate interest expense, depreciation expense and certain other non-property specific revenues and expenses (collectively referred to as "Non-Segment Items," as shown in the following table) to our individual operating segments.


We evaluate the performance of our Service Operations reportable segment using net income or loss, as allocated to that segment ("Earnings from Service Operations").


The following table shows a reconciliation of our segment-level measures of profitability to consolidated income from continuing operations before income taxes (in thousands and excluding discontinued operations): 

 Three Months Ended June 30, Six Months Ended June 30, Three Months Ended March 31,
 2017 2016 2017 2016 2018 2017
PNOI            
Industrial $120,346
 $103,289
 $235,535
 $203,892
 $133,388
 $114,680
Non-reportable Rental Operations 1,750
 2,528
 4,236
 5,186
 921
 927
PNOI, excluding all sold/held-for-sale properties 122,096
 105,817
 239,771
 209,078
PNOI from sold/held-for-sale properties included in continuing operations 372
 9,812
 1,956
 21,366
PNOI, excluding all sold properties 134,309
 115,607
PNOI from sold properties included in continuing operations 1,606
 2,905
PNOI, continuing operations $122,468
 $115,629
 $241,727
 $230,444
 $135,915
 $118,512
            
Earnings from Service Operations 1,202
 3,816
 2,977
 6,047
 692
 1,775
 
 
 
 
 
 
Rental Operations revenues and expenses excluded from PNOI:            
Straight-line rental income and expense, net 3,628
 1,323
 5,205
 2,920
 6,289
 1,577
Revenues related to lease buyouts 72
 69
 9,857
 234
 23
 9,785
Amortization of lease concessions and above and below market rents (566) (695) (1,450) (1,612) 545
 (543)
Intercompany rents and other adjusting items (188) (412) (413) (603) 14
 180
Non-Segment Items:            
Equity in earnings of unconsolidated companies 51,933
 3,534
 56,682
 25,394
Gain on dissolution of unconsolidated company 
 30,697
 
 30,697
Promote income 20,007
 24,087
 20,007
 24,087
Equity in earnings of unconsolidated joint ventures 8,287
 4,749
Interest expense (21,680) (29,511) (44,566) (59,644) (20,000) (24,162)
Depreciation and amortization expense (67,013) (61,136) (129,036) (120,669) (77,529) (62,023)
Gain on sale of properties 34,341
 39,314
 71,387
 54,891
 44,886
 37,046
Impairment charges 
 (5,651) (859) (12,056) 
 (859)
Interest and other income, net 2,260
 567
 2,792
 3,090
 4,463
 533
General and administrative expenses (11,858) (11,584) (31,090) (29,682) (21,023) (19,232)
Gain on land sales 1,279
 707
 2,784
 837
 2,949
 1,505
Other operating expenses (718) (836) (1,457) (2,072) (786) (738)
Loss on extinguishment of debt (9,561) (2,430) (9,536) (2,430)
Acquisition-related activity 
 (72) 
 (75)
Gain on extinguishment of debt 
 25
Other non-segment revenues and expenses, net (986) 80
 (1,569) (323) (872) (583)
Income from continuing operations before income taxes $124,620
 $107,496
 $193,442
 $149,475
 $83,853
 $67,547
The most comparable GAAP measure to PNOI is income from continuing operations before income taxes. PNOI excludes expenses that materially impact our overall results of operations and, therefore, should not be considered as a substitute for income from continuing operations before income taxes or any other measures derived in accordance with GAAP. Furthermore, PNOI may not be comparable to other similarly titled measures of other companies.
Assets by Reportable Segment

The assets for each of the reportable segments were as follows (in thousands):
 June 30,
2017
 December 31,
2016
Assets   
Rental Operations:   
Industrial$5,303,570
 $4,828,984
Non-reportable Rental Operations307,095
 1,501,737
Service Operations124,848
 127,154
Total segment assets5,735,513
 6,457,875
Non-segment assets1,582,056
 314,127
Consolidated assets$7,317,569
 $6,772,002


10.    Real Estate Assets, Discontinued Operations and Assets Held for Sale
Real Estate Assets
Real estate assets, excluding assets held for sale, consisted of the following (in thousands):
 March 31, 2018 December 31, 2017
Buildings and tenant improvements$4,668,740
 $4,642,832
Land and improvements1,939,854
 1,950,735
Real estate assets$6,608,594
 $6,593,567
 June 30, 2017 December 31, 2016
Buildings and tenant improvements$3,975,603 $3,752,423
Land and improvements1,524,433
 1,392,382
Real estate assets$5,500,036 $5,144,805

Discontinued Operations
All of the properties included in discontinued operations are medical office properties. Because of the size of the Medical Office Portfolio Disposition, and the fact that it represented our exit from the medical office product type, we determined that the disposition represented a strategic shift that would have a major effect on our operations and financial results. As such, the consolidated in-service properties in this portfolio met the criteria to be classified within discontinued operations. As the result of its classification within discontinued operations, the in-service assets and liabilities of this portfolio are required to be presented as held for sale for all prior periods presented in our Consolidated Balance Sheets. Operating results pertaining to the properties classified within discontinued operations were reclassified to discontinued operations for all prior periods presented in our Consolidated Statements of Operations and Comprehensive Income.
The following table illustrates the number of sold or held-for-sale properties included in, or excluded from, discontinued operations in this report:

 Held-for-Sale at June 30, 2017 Sold Year-to-Date in 2017 Sold in 2016 Total
    
    
Total properties included in discontinued operations8 73  81
Properties excluded from discontinued operations2 12 32 46
Total properties sold or classified as held-for-sale10 85 32 127
 Held-for-Sale at March 31, 2018 Sold Year-to-Date in 2018 Sold in 2017 Total
    
    
Total properties included in discontinued operations  81 81
Properties excluded from discontinued operations2 6 17 25
Total properties sold or classified as held-for-sale2 6 98 106

    
Properties sold in 2017 but excluded from discontinued operations included four properties under development, which were disposed as part of the Medical Office Portfolio Disposition, as these properties did not meet the criteria to be included in discontinued operations.
For the properties that were classified in discontinued operations, we allocated interest expense to discontinued operations and have included such interest expense in computing income from discontinued operations. Interest expense allocable to discontinued operations was based upon an allocable share of our consolidated unsecured interest expense, as none of the properties included in discontinued operations were encumbered by secured debt. The allocation of unsecured interest expense to discontinued operations was based upon the gross book value of the unencumbered real estate assets included in discontinued operations as it related to the total gross book value of our unencumbered real estate assets. There were no additional properties classified as discontinued operations during the three months ended March 31, 2018 and, as such, no interest expense was allocated to discontinued operations during that period.
The following table illustrates the operational results of the buildings reflected in discontinued operations (in thousands):

 Three Months Ended March 31,
 2018 2017
Revenues$5
 $46,239
Operating expenses(13) (14,996)
Depreciation and amortization
 (19,534)
Operating (loss) income(8) 11,709
Interest expense
 (6,343)
(Loss) income before gain on sales(8) 5,366
Gain on sale of depreciable properties132
 
Income from discontinued operations$124
 $5,366

 Three Months Ended June 30, Six Months Ended June 30,
 2017 2016 2017 2016
Revenues$35,165
 $42,736
 $81,404
 $84,181
Operating expenses(11,170) (13,760) (26,166) (27,137)
Depreciation and amortization(6,315) (19,025) (25,849) (37,290)
Operating income17,680
 9,951
 29,389
 19,754
Interest expense(6,585) (7,673) (14,204) (15,270)
Income before gain on sales11,095
 2,278
 15,185
 4,484
Gain on sale of depreciable properties1,109,091
 252
 1,109,091
 166
Income from discontinued operations before income taxes1,120,186
 2,530
 1,124,276
 4,650
Income tax expense(11,613) 
 (11,613) 
Income from discontinued operations$1,108,573
 $2,530
 $1,112,663
 $4,650
There were no capital expenditures for properties within discontinued operations during the three months ended March 31, 2018. Capital expenditures on a cash basis for the sixthree months ended June 30,March 31, 2017 and 2016 were $20.6$12.6 million and $54.8 million, respectively, related tofor properties within discontinued operations.
Allocation of Noncontrolling Interests - General Partner
The following table illustrates the General Partner's share of the income attributable to common shareholders from continuing operations and discontinued operations, reduced by the allocation of income between continuing and discontinued operations to the noncontrolling interests (in thousands):
 Three Months Ended March 31,
 2018 2017
Income from continuing operations attributable to common shareholders$72,840
 $64,884
Income from discontinued operations attributable to common shareholders123
 5,316
Net income attributable to common shareholders$72,963
 $70,200
 Three Months Ended June 30, Six Months Ended June 30,
 2017 2016 2017 2016
Income from continuing operations attributable to common shareholders$118,194
 $106,563
 $184,362
 $147,771
Income from discontinued operations attributable to common shareholders1,092,349
 2,504
 1,096,381
 4,603
Net income attributable to common shareholders$1,210,543
 $109,067
 $1,280,743
 $152,374

Allocation of Noncontrolling Interests - Partnership
Substantially all of the income from discontinued operations for all periods presented in the Partnership's Consolidated Statements of Operations and Comprehensive Income is attributable to the common unitholders.

Assets Held for Sale
At June 30, 2017, tenMarch 31, 2018, two in-service properties were classified as held for sale, eight of which were medical office properties that met the criteria to be classified within discontinued operations. Also at June 30, 2017, 52and ten acres of undeveloped land were classified as held for sale and classified within continuing operations, including undeveloped land to be sold as part of the Medical Office Portfolio Disposition, whichbut did not meet the criteria to be classified within discontinued operations.
The following table illustrates aggregate balance sheet information for all held-for-sale properties and land held for sale (in thousands):

 Held-for-Sale Properties Included in Continuing Operations
 March 31, 2018 December 31, 2017
Land and improvements$9,055
 $8,157
Buildings and tenant improvements15,283
 10,505
Undeveloped land706
 
Accumulated depreciation(4,824) (2,553)
Deferred leasing and other costs, net862
 862
Other assets658
 579
Total assets held for sale$21,740
 $17,550
    
Total liabilities related to assets held for sale$1,327
 $1,163

 Held-for-Sale Properties
 June 30, 2017 December 31, 2016
 Held-for-Sale Properties Included in Continuing Operations Properties Included in Discontinued Operations 
Total
Held-For-Sale Properties
 Held-for-Sale Properties Included in Continuing Operations Properties Included in Discontinued Operations 
Total
 Held-For-Sale Properties
Land and improvements$10,522
 $26,560
 $37,082
 $3,631
 $118,882
 $122,513
Buildings and tenant improvements17,351
 166,573
 183,924
 37,495
 1,218,468
 1,255,963
Undeveloped land17,082
 
 17,082
 22,657
 
 22,657
Accumulated depreciation(6,198) (37,577) (43,775) (18,581) (240,685) (259,266)
Deferred leasing and other costs, net862
 6,882
 7,744
 3,091
 83,522
 86,613
Other assets738
 10,859
 11,597
 3,334
 92,444
 95,778
Total assets held-for-sale$40,357
 $173,297
 $213,654
 $51,627
 $1,272,631
 $1,324,258
            
Accrued expenses$647
 $2,475
 $3,122
 $1,363
 $22,128
 $23,491
Other liabilities802
 5,165
 5,967
 298
 32,502
 32,800
Total liabilities held-for-sale$1,449
 $7,640
 $9,089
 $1,661
 $54,630
 $56,291

11.    Subsequent Events
Declaration of Dividends/Distributions
The General Partner's board of directors declared the following dividends/distributions at its regularly scheduled board meeting held on July 26, 2017:April 25, 2018:
Class of stock/unitsQuarterly Amount per Share or Unit Record Date Payment Date
Common - Quarterly$0.190.20 August
May 16, 20172018
 August
May 31, 20172018
Redemption of Outstanding Debt
In July 2017, we redeemed $128.7 million of 6.75% senior unsecured notes due March 2020 and incurred a loss of approximately $16.6 million including the redemption premium and the write-off of deferred financing costs.
Disposition of Remaining Medical Office Properties
In July 2017, we sold four of the remaining medical office properties as part of the Medical Office Portfolio Disposition for total sales price of $155.1 million.

Item 2.    Management's Discussion and Analysis of Financial Condition and Results of Operations
The following Management's Discussion and Analysis of Financial Condition and Results of Operations is intended to help the reader understand our operations and our present business environment. Management's Discussion and Analysis is provided as a supplement to, and should be read in conjunction with, our consolidated financial statements and the notes thereto contained in Part I, Item I of this Report, and the consolidated financial statements and notes thereto contained in Part IV, Item 15 of our 20162017 Annual Report.
Cautionary Notice Regarding Forward-Looking Statements
Certain statements contained in or incorporated by reference into this Report, including, without limitation, those related to our future operations, constitute "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. The words "believe," "estimate," "expect," "anticipate," "intend," "plan," "strategy," "continue," "seek," "may," "could" and similar expressions or statements regarding future periods are intended to identify forward-looking statements, although not all forward-looking statements may contain such words.
These forward-looking statements involve known and unknown risks, uncertainties and other important factors that could cause our actual results, performance or achievements, or industry results, to differ materially from any predictions of future results, performance or achievements that we express or imply in this Report or the information incorporated by reference into this Report. Some of the risks, uncertainties and other important factors that may affect future results include, among others:
Changes in general economic and business conditions, including the financial condition of our tenants and the value of our real estate assets;
The General Partner's continued qualification as a REIT for U.S. federal income tax purposes;
Heightened competition for tenants and potential decreases in property occupancy;
Potential changes in the financial markets and interest rates;
Volatility in the General Partner's stock price and trading volume;
Our continuing ability to raise funds on favorable terms, or at all;
Our ability to successfully identify, acquire, develop and/or manage properties on terms that are favorable to us;
Potential increases in real estate construction costs;
Our ability to successfully dispose of properties on terms that are favorable to us, including, without limitation, through one or more transactions that are consistent with our previously disclosed strategic plans;
Our ability to successfully integrate our acquired properties;
Our ability to retain our current credit ratings;
Inherent risks in the real estate business, including, but not limited to, tenant defaults, potential liability relating to environmental matters and liquidity of real estate investments; and
Other risks and uncertainties described herein, as well as those risks and uncertainties discussed from time to time in our other reports and other public filings with the Securities and Exchange Commission (the "SEC").
Although we presently believe that the plans, expectations and anticipated results expressed in or suggested by the forward-looking statements contained in or incorporated by reference into this Report are reasonable, all forward-looking statements are inherently subjective, uncertain and subject to change, as they involve substantial risks and uncertainties, including those beyond our control. New factors emerge from time to time, and it is not possible for us to predict the nature, or assess the potential impact, of each new factor on our business. Given these uncertainties, we caution you not to place undue reliance on these forward-looking statements. We undertake no obligation to update or revise any of our forward-looking statements for events or circumstances that arise after the statement is made, except as otherwise may be required by law.


The above list of risks and uncertainties is only a summary of some of the most important factors and is not intended to be exhaustive. Additional information regarding risk factors that may affect us is included in our 2016 2017

Annual Report. The risk factors contained in our Annual Report are updated by us from time to time in Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and other public filings.filings that we make with the SEC. 
 
 

Business Overview
The General Partner and Partnership collectively specialize in the ownership, management and development of industrial real estate.
The General Partner is a self-administered and self-managed REIT that began operations in 1986 and is the sole general partner of the Partnership. The Partnership is a limited partnership formed in 1993, at which time all of the properties and related assets and liabilities of the General Partner, as well as proceeds from a secondary offering of the General Partner's common shares, were contributed to the Partnership. Simultaneously, the Partnership completed the acquisition of Duke Associates, a full-service commercial real estate firm operating in the Midwest whose operations began in 1972. We operate the General Partner and the Partnership as one enterprise, and therefore, our discussion and analysis refers to the General Partner and its consolidated subsidiaries, including the Partnership, collectively. A more complete description of our business, and of management's philosophy and priorities, is included in our 20162017 Annual Report.
At June 30, 2017,March 31, 2018, we:
Owned or jointly controlled 498507 primarily industrial properties, of which 472489 properties with 129.5139.8 million square feet were in service and 2618 properties with 10.99.6 million square feet were under development. The 472489 in-service properties were comprised of 432449 consolidated properties with 118.7129.1 million square feet and 40 jointly controlled unconsolidated properties with 10.8 million square feet. The 2618 properties under development consisted of 2216 consolidated properties with 9.88.5 million square feet and fourtwo jointly controlled unconsolidated properties with 1.1 million square feet.
Owned directly, or through ownership interests in unconsolidated joint ventures (with acreage not adjusted for our percentage ownership interest), approximately 2,1001,900 acres of land and controlled approximately 1,6001,400 acres through purchase options.
Our overall strategy is to continue to increase our investment in quality industrial properties.

During the three months ended June 30, 2017, we substantially completed the Medical Office Portfolio Disposition, which resultedproperties primarily through development, on both a speculative and build-to-suit basis, supplemented with acquisitions in all of our in-service medical office properties being classified within discontinued operationshigher barrier markets with the exception of a property that did not meet the criteria for classification as held for sale at June 30, 2017. As a result of this transaction, our medical office properties are no longer presented as a separate reportable segment at June 30, 2017, as they no longer meet the quantitative thresholds for separate presentation and, to the extent not classified within discontinued operations, are classified as part of our non-reportable Rental Operations. Properties that are not included in our reportable segments, because they do not by themselves meet the quantitative thresholds for separate presentation as a reportable segment, are generally referred to as non-reportable Rental Operations. Our non-reportable Rental Operations primarily include our remaining office properties and medical office property at June 30, 2017.highest growth potential.


As of June 30, 2017,March 31, 2018, we had two reportable operating segments, the first consisting of the ownership and rental of industrial real estate investments. The operations of our industrial properties, as well as our non-reportable Rental Operations, are collectively referred to as "Rental Operations." Our second reportable segment consists of various real estate services such as property management, asset management, maintenance, leasing, development, general contracting and construction management to third-party property owners and joint ventures, and is collectively referred to as "Service Operations." Our reportable segments offer different product or services and are managed separately because each segment requires different operating strategies and management expertise. Our Service Operations segment also includes our taxable REIT subsidiary, a legal entity through which certain of the segment's aforementioned operations are conducted.


Key Performance Indicators
Our operating results depend primarily upon rental income from our Rental Operations. The following discussion highlights the areas of Rental Operations that we consider critical drivers of future revenues.

Occupancy Analysis
Our ability to maintain high occupancy rates is a principal driver of maintaining and increasing rental revenue. The following table sets forth percent leased and average net effective rent information regarding our in-service portfolio of rental properties, including properties classified within both continuing and discontinued operations, at June 30,March 31, 2018 and 2017, and 2016, respectively:

Total Square Feet
(in thousands)
 
Percent of
Total Square Feet
 Percent Leased* Average Annual Net Effective Rent**
Total Square Feet
(in thousands)
 
Percent of
Total Square Feet
 Percent Leased* Average Annual Net Effective Rent**
Type2017 2016 2017 2016 2017 2016 2017 20162018 2017 2018 2017 2018 2017 2018 2017
Industrial116,858
 110,863
 98.4% 92.7% 96.5% 96.7% $4.23 $4.08128,661
 113,863
 99.7% 94.4% 97.4% 98.5% $4.48 $4.19
Non-reportable Rental Operations1,856
 8,793
 1.6% 7.3% 81.3% 92.0% 20.63
 $20.19399
 6,796
 0.3% 5.6% 58.9% 89.8% $19.81 $23.40
Total Consolidated118,714
 119,656
 100.0% 100.0% 96.2% 96.4% $4.45 $5.21129,060
 120,659
 100.0% 100.0% 97.3% 98.1% $4.51 $5.19
              
Unconsolidated Joint Ventures10,759
 13,956
     89.3% 89.2% $4.18 $5.7110,759
 11,286
     90.5% 89.4% $4.22 $5.90
Total Including Unconsolidated Joint Ventures129,473
 133,612
     95.6% 95.6%   139,819
 131,945
     96.7% 97.4% 
* Represents the percentage of total square feet leased based on executed leases and without regard to whether the leases have commenced.
**Represents average annual base rental payments per leased square foot, on a straight-line basis for the term of each lease, from space leased to tenants at the end of the most recent reporting period. This amount excludes additional amounts paid by tenants as reimbursement for operating expenses.
**Average annual net effective rent represents average annual base rental payments per leased square foot, on a straight-line basis for the term of each lease, from space leased to tenants at the end of the most recent reporting period. This amount excludes additional amounts paid by tenants as reimbursement for operating expenses.**Average annual net effective rent represents average annual base rental payments per leased square foot, on a straight-line basis for the term of each lease, from space leased to tenants at the end of the most recent reporting period. This amount excludes additional amounts paid by tenants as reimbursement for operating expenses.
The decreased occupancy within our industrial portfolio at March 31, 2018, compared to March 31, 2017, resulted from speculative developments being placed in service or acquired from third parties.
Vacancy Activity
The following table sets forth vacancy activity, shown in square feet, from our in-service rental properties included within both continuing and discontinued operations, at June 30, 2017March 31, 2018 (in thousands):
Consolidated Properties Unconsolidated Joint Venture Properties Total Including Unconsolidated Joint Venture PropertiesConsolidated Properties Unconsolidated Joint Venture Properties Total Including Unconsolidated Joint Venture Properties
Vacant square feet at December 31, 20163,298
 425
 3,723
Acquisitions860
 
 860
Vacant square feet at December 31, 20174,992
 1,219
 6,211
Vacant space in completed developments718
 708
 1,426
189
 
 189
Dispositions(389) (102) (491)(59) 
 (59)
Expirations2,205
 370
 2,575
1,985
 64
 2,049
Early lease terminations1,084
 5
 1,089
53
 
 53
Property structural changes/other14
 
 14
(10) 
 (10)
Leasing of previously vacant space(3,303) (257) (3,560)(3,619) (258) (3,877)
Vacant square feet at June 30, 20174,487
 1,149
 5,636
Vacant square feet at March 31, 20183,531
 1,025
 4,556
Total Leasing Activity

The initial leasing of development projects or vacant space in acquired properties is referred to as first generation lease activity. Our ability to maintain and improve occupancy rates and net effective rents primarily depends upon our continuing ability to re-lease expiring space. The leasing of such space that we have previously held under lease to a tenant is referred to as second generation lease activity. Second generation lease activity may be in the form of renewals of existing leases or new second generation leases of previously leased space. The total leasing activity for our consolidated and unconsolidated rental properties included within both continuing and discontinued operations, expressed in square feet of leases signed, is as follows (in thousands):

Three Months Ended June 30, Six Months Ended June 30,Three Months Ended March 31,
2017 2016 2017 20162018 2017
New Leasing Activity - First Generation534 1,573 3,117 4,327
New Leasing Activity - Second Generation1,043 2,261 2,156 3,367
Renewal Leasing Activity2,545 2,522 3,812 5,548
New Leasing Activity - First Generation Industrial2,520
 2,436
New Leasing Activity - Second Generation Industrial2,633
 1,096
Renewal Leasing Activity - Industrial1,477
 1,257
Non-reportable Rental Operations Leasing Activity
 174
Total Consolidated Leasing Activity4,122 6,356 9,085 13,2426,630
 4,963
Unconsolidated Joint Venture Leasing Activity933 1,241 1,596 1,743320
 662
Total Including Unconsolidated Joint Venture Leasing Activity5,055 7,597 10,681 14,9856,950
 5,625
Of the consolidated leasing activity shown above, approximately 35,000 square feet and 48,000 square feet related to medical office properties for the three-month periods ended June 30, 2017 and 2016, respectively, while approximately 164,000 square feet and 97,000 square feet related to medical office properties for the six-month periods ended June 30, 2017 and 2016, respectively.
New Second Generation Leases
The following table sets forth the estimated costs of tenant improvements and leasing commissions, on a per square foot basis, that we are obligated to fulfill under the new second generation industrial leases signed for our rental properties included within both continuing and discontinued operations, during the three and six months ended June 30, 2017March 31, 2018 and 2016:2017:
 
Square Feet of New Second Generation Leases Signed
(in thousands)
 Average Term in Years Estimated Tenant Improvement Cost per Square Foot Leasing Commissions per Square Foot
 2017 2016 2017 2016 2017 2016 2017 2016
Three Months               
Industrial1,036
 2,246
 5.6
 7.0
 $2.06 $2.10 $2.10 $1.77
Non-reportable Rental Operations7
 15
 8.1
 4.6
 $21.87 $8.38 $7.51 $6.61
Total Consolidated1,043
 2,261
 5.6
 7.0
 $2.20 $2.15 $2.14 $1.80
Unconsolidated Joint Ventures107
 275
 7.2
 8.6
 $0.25 $6.44 $1.94 $3.02
Total Including Unconsolidated Joint Ventures1,150
 2,536
 5.7
 7.1
 $2.02 $2.61 $2.12 $1.93
                
Six Months               
Industrial2,132
 3,320
 5.4
 6.9
 $1.95 $2.46 $1.71 $1.79
Non-reportable Rental Operations24
 47
 6.7
 7.0
 $22.25 $10.98 $7.30 $10.78
Total Consolidated2,156 3,367
 5.4
 6.9
 $2.17 $2.58 $1.77 $1.91
Unconsolidated Joint Ventures161
 346
 9.7
 7.4
 $0.63 $5.15 $2.17 $2.64
Total Including Unconsolidated Joint Ventures2,317
 3,713
 5.7
 7.0
 $2.07 $2.82 $1.80 $1.98
 
Square Feet of Leases
(in thousands)
 Percent of Expiring Leases Renewed Average Term in Years Estimated Tenant Improvement Cost per Square Foot Leasing Commissions per Square Foot
 2018 2017 2018 2017 2018 2017 2018 2017 2018 2017
Three Months Ended March 31,                   
Consolidated - New Second Generation2,633
 1,096
     7.2
 5.2 $1.66 $1.84 $1.92 $1.33
Unconsolidated Joint Ventures - New Second Generation128
 54
     10.8
 14.6 $2.35 $1.37 $3.61 $2.62
Total - New Second Generation2,761
 1,150
     7.3
 5.6 $1.69 $1.82 $2.00 $1.39
                    
Consolidated - Renewal1,477
 1,257
 69.1% 85.6% 4.6
 4.7 $1.09 $0.71 $1.39 $1.21
Unconsolidated Joint Ventures - Renewal62
 156
 49.1% 74.1% 6.4
 3.7 $1.26 $0.21 $2.09 $0.85
Total - Renewal1,539
 1,413
 68.0% 84.1% 4.6
 4.6 $1.10 $0.65 $1.41 $1.17
Lease Renewals
The following table summarizes our leaseGrowth in average annual net effective rents for the consolidated new second generation and renewal activity within our rental properties included within both continuingleases, on a combined basis, was 25.6% and discontinued operations22.7% for the three and six months ended June 30,March 31, 2018 and 2017, respectively. Growth in net effective rents for the unconsolidated new second generation and 2016:

 
Square Feet of Leases Renewed
(in thousands)
 Percent of Expiring Leases Renewed Average Term in Years Growth (Decline) in Net Effective Rents* Estimated Tenant Improvement Cost per Square Foot Leasing Commissions per Square Foot
 2017 2016 2017 2016 2017 2016 2017 2016 2017 2016 2017 2016
Three Months                       
Industrial2,534
 2,110
 75.8% 49.6% 5.1 3.8 16.7% 15.0 % $0.30 $0.52 $1.34 $0.84
Non-reportable Rental Operations11
 412
 46.5% 98.0% 6.0 10.6 14.8% 2.6 % $2.65 $2.90 $3.87 $1.86
Total Consolidated2,545
 2,522
 75.6% 54.0% 5.1 4.9 16.6% 9.7 % $0.31 $0.91 $1.35 $1.00
Unconsolidated Joint Ventures323
 949
 61.3% 99.6% 4.8 5.1 20.0% (3.3)% $0.33 $0.29 $1.43 $2.28
Total Including Unconsolidated Joint Ventures2,868
 3,471
 73.7% 61.7% 5.0 5.0 17.0% 5.4 % $0.31 $0.74 $1.36 $1.35
                        
Six Months                       
Industrial3,791
 5,082
 78.8% 69.2% 4.9 3.4 17.6% 14.4 % $0.44 $0.42 $1.29 $0.71
Non-reportable Rental Operations21
 466
 49.4% 78.6% 6.6 10.1 16.4% 4.4 % $4.44 $3.53 $4.92 $2.25
Total Consolidated3,812
 5,548
 78.5% 70.0% 4.9 3.9 17.5% 11.7 % $0.46 $0.68 $1.31 $0.83
Unconsolidated Joint Ventures489
 1,268
 65.4% 81.4% 4.5 5.2 22.6% (2.7)% $0.28 $0.50 $1.37 $2.09
Total Including Unconsolidated Joint Ventures4,301
 6,816
 76.8% 71.8% 4.9 4.2 18.1% 8.0 % $0.44 $0.65 $1.32 $1.07
* Represents the percentage change in net effective rent between the original leases and the renewal leases. Net effective rents represent average annual base rental payments, on a straight-line basis for the term of each lease, excluding operating expense reimbursements.
renewal leases, on a combined basis, was 25.9% and 31.0% for the three months ended March 31, 2018 and 2017, respectively.
Lease Expirations
The table below reflects our consolidated in-service portfolio lease expiration schedule excluding the leases in properties designated as held-for-sale, at June 30, 2017March 31, 2018 (in thousands, except percentage data and number of leases):

 Total Consolidated Portfolio Industrial Non-reportable
Year of
Expiration
Square
Feet
 Annual Rental
Revenue*
 Number of Leases Square
Feet
 Annual Rental
Revenue*
 Square
Feet
 Annual Rental
Revenue*
Remainder of 20173,528
 $12,699
 104 3,526
 $12,677
 2
 $22
201810,873
 42,260
 191 10,866
 42,181
 7
 79
201913,665
 54,492
 213 13,653
 54,343
 12
 149
202013,443
 62,259
 181 13,419
 62,041
 24
 218
202112,788
 55,391
 181 12,729
 54,896
 59
 495
202215,532
 59,810
 127 15,477
 58,906
 55
 904
20234,847
 22,516
 66 4,839
 22,429
 8
 87
20249,216
 40,963
 59 9,204
 40,732
 12
 231
20257,816
 31,964
 40 7,792
 31,399
 24
 565
20267,354
 32,668
 50 7,354
 32,668
 
 
2027 and Thereafter14,060
 72,059
 88 13,628
 63,391
 432
 8,668
Total Leased113,122
 $487,081
 1,300 112,487
 $475,663
 635
 $11,418
              
Total Portfolio Square Feet117,490
     116,629
   861
  
Percent Leased96.3%     96.4%   73.8%  
* Annualized rental revenue represents average annual base rental payments, on a straight-line basis for the term of each lease, from space leased to tenants at the end of the most recent reporting period. Annualized rental revenue excludes additional amounts paid by tenants as reimbursement for operating expenses.
Information on current market rents can be difficult to obtain, is highly subjective, and is often not directly comparable between properties. As a result, we believe the increase or decrease in net effective rent on lease

renewals, as previously defined, is the most objective and meaningful relationship between rents on leases expiring in the near-term and current market rents.
 Total Consolidated Portfolio Industrial Non-reportable
Year of
Expiration
Square
Feet
 Annual Rental
Revenue*
 Number of Leases Square
Feet
 Annual Rental
Revenue*
 Square
Feet
 Annual Rental
Revenue*
Remainder of 20186,561
 $25,610
 77 6,554
 $25,522
 7
 $88
201911,504
 47,035
 136 11,492
 46,886
 12
 149
202013,649
 61,593
 147 13,644
 61,526
 5
 67
202112,728
 56,878
 131 12,669
 56,383
 59
 495
202218,396
 74,604
 124 18,378
 74,424
 18
 180
202310,130
 49,471
 103 10,120
 49,331
 10
 140
202411,540
 52,928
 61 11,535
 52,866
 5
 62
202510,181
 45,689
 52 10,181
 45,689
 
 
20267,546
 33,568
 27 7,546
 33,568
 
 
20276,538
 28,404
 19 6,538
 28,404
 
 
2028 and Thereafter16,755
 90,108
 52 16,636
 86,622
 119
 3,486
Total Leased125,528
 $565,888
 929 125,293
 $561,221
 235
 $4,667
              
Total Portfolio Square Feet129,060
     128,661
   399
  
Percent Leased97.3%     97.4%   58.9%  
* Annualized rental revenue represents average annual base rental payments, on a straight-line basis for the term of each lease, from space leased to tenants at the end of the most recent reporting period. Annualized rental revenue excludes additional amounts paid by tenants as reimbursement for operating expenses.
Building Acquisitions
Our decision process in determining whether or not to acquire a target property or portfolio of properties involves several factors, including expected rent growth, multiple yield metrics, property locations and expected demographic growth in each location, current occupancy of the target properties, tenant profile and remaining terms of the in-place leases in the target properties. We pursue both brokered and non-brokered acquisitions, and it is difficult to predict which markets and product types may present acquisition opportunities that align with our strategy. Because of the numerous factors considered in our acquisition decisions, we do not establish specific target yields for future acquisitions.
We acquired 11two buildings during the sixthree months ended June 30,March 31, 2018, and 28 buildings during the year ended December 31, 2017, one of which was sold as part of the Medical Office Portfolio Disposition, and 17 buildings during the year ended December 31, 2016.Disposition. The following table summarizes the acquisition price, percent leased at time of acquisition and in-place yields, by product type, for these acquisitions (in thousands, except percentage data):
Year-to-Date 2017 Acquisitions Full Year 2016 AcquisitionsYear-to-Date 2018 Acquisitions Full Year 2017 Acquisitions
TypeAcquisition Price* In-Place Yield** Percent Leased at Acquisition Date*** Acquisition Price* In-Place Yield** Percent Leased at Acquisition Date***Acquisition Price* In-Place Yield** Percent Leased at Acquisition Date*** Acquisition Price* In-Place Yield** Percent Leased at Acquisition Date***
Industrial$228,865
 1.8% 60.1% $167,339
 6.7% 91.3%$22,863
 4.4% 100.0% $980,339
 2.5% 68.5%
Non-reportable Rental Operations10,829
 6.1% 100.0% 72,844
 7.4% 94.5%
 
 
 10,829
 6.1% 100.0%
Total$239,694
 2.0% 61.6% $240,183
 6.9% 91.7%$22,863
 4.4% 100.0% $991,168
 2.5% 68.8%
                      
* Includes fair value of real estate assets and net acquired lease-related intangible assets, including above or below market leases, but excludes other acquired working capital assets and liabilities.** In-place yields of completed acquisitions are calculated as the current annualized net rental payments from space leased to tenants at the date of acquisition, divided by the acquisition price of the acquired real estate. Annualized net rental payments are comprised of base rental payments, excluding additional amounts payable by tenants as reimbursement for operating expenses, less current annualized operating expenses not recovered through tenant reimbursements.*** Represents percentage of total square feet leased based on executed leases and without regard to whether the leases have commenced, at the date of acquisition.


Building Dispositions
We regularly work to identify, consider and pursue opportunities to dispose of properties on an opportunistic basis and on a basis that is generally consistent with our strategic plans.
We sold85six consolidated propertiesbuildings during the sixthree months ended June 30, 2017,March 31, 2018 and 98 consolidated buildings, including 7785 properties sold as part of the Medical Office Portfolio Disposition, and 32 wholly owned buildings during the year ended December 31, 2016.2017. The following table summarizes the sales prices, in-place yields and percent leased, by product type, of these buildings (in thousands, except percentage data):

Year-to-Date 2017 Dispositions Full Year 2016 DispositionsYear-to-Date 2018 Dispositions Full Year 2017 Dispositions
TypeSales Price In-Place Yield* Percent Occupied** Sales Price In-Place Yield* Percent Occupied**Sales Price In-Place Yield* Percent Occupied** Sales Price In-Place Yield* Percent Occupied**
Industrial$18,042
 6.1% 100.0% $162,831
 6.4% 96.7%$15,750
 5.0% 87.7% $45,192
 7.0% 92.6%
Non-reportable Rental Operations2,417,491
 4.8% 95.1% 353,734
 8.1% 88.2%114,327
 4.8% 96.1% 2,938,572
 4.8% 93.9%
Total$2,435,533
 4.8% 95.1% $516,565
 7.6% 92.5%$130,077
 5.1% 94.0% $2,983,764
 4.8% 93.5%
                      
* In-place yields of completed dispositions are calculated as annualized net operating income from space leased to tenants at the date of sale on a lease-up basis, including full rent from all executed leases, even if currently in a free rent period, divided by the sales price. Annualized net operating income is comprised of base rental payments, excluding reimbursement of operating expenses, less current annualized operating expenses not recovered through tenant reimbursements.** Represents percentage of total square feet leased based on executed leases and without regard to whether the leases have commenced, at the date of sale.
Development
At June 30, 2017,March 31, 2018, we had 10.99.6 million square feet of property under development with total estimated costs upon completion of $802.9$834.9 million compared to 6.011.0 million square feet with total estimated costs upon completion of $553.9$894.8 million at June 30, 2016.March 31, 2017. The square footage and estimated costs include both consolidated properties and unconsolidated joint venture development activity at 100%.
The following table summarizes our properties under development at June 30, 2017March 31, 2018 (in thousands, except percentage data): 
Ownership Type
Square
Feet
 
Percent
Leased
 
Total
Estimated
Project Costs

 
Total
Incurred
to Date

 
Amount
Remaining
to be Spent

Square
Feet
 
Percent
Leased
 
Total
Estimated
Project Costs
 
Total
Incurred
to Date
 
Amount
Remaining
to be Spent
Consolidated properties9,803 62% $745,223
 $443,319
 $301,904
8,477 52% $780,825
 $422,239
 $358,586
Unconsolidated joint venture properties1,075 88% 57,690
 13,745
 43,945
1,108 100% 54,096
 41,206
 12,890
Total10,878 65% $802,913
 $457,064
 $345,849
9,585 57% $834,921
 $463,445
 $371,476
Results of Operations
A summary of our operating results and property statistics is as follows (in thousands, except number of properties and per share or Common Unit data):

Three Months Ended June 30, Six Months Ended June 30, Three Months Ended March 31,
2017 2016 2017 2016 2018 2017
Rental and related revenue from continuing operations$165,836
 $157,910
 $337,512
 $318,497
 $193,456
 $171,676
General contractor and service fee revenue23,576
 26,044
 32,975
 49,195
 41,101
 9,399
Operating income153,601
 138,942
 244,752
 208,534
 99,390
 91,151
General Partner           
Net income attributable to common shareholders$1,210,543 $109,067
 $1,280,743 $152,374
 $72,963
 $70,200
Weighted average common shares outstanding355,647
 347,464
 355,466
 346,564
 356,740
 355,282
Weighted average common shares and potential dilutive securities361,981
 354,433
 361,789
 352,227
 360,400
 360,700
Partnership           
Net income attributable to common unitholders$1,221,783
 $110,168
 $1,292,635
 $153,913
 $73,646
 $70,852
Weighted average Common Units outstanding358,952
 350,968
 358,776
 350,065
 360,095
 358,598
Weighted average Common Units and potential dilutive securities361,981
 354,433
 361,789
 352,227
 360,400
 360,700
General Partner and Partnership           
Basic income per common share or Common Unit:           
Continuing operations$0.33
 $0.30
 $0.52
 $0.43
 $0.20
 $0.18
Discontinued operations$3.07
 $0.01
 $3.08
 $0.01
 $
 $0.02
Diluted income per common share or Common Unit:           
Continuing operations$0.33
 $0.30
 $0.51
 $0.43
 $0.20
 $0.18
Discontinued operations$3.05
 $0.01
 $3.06
 $0.01
 $
 $0.02
Number of in-service consolidated properties at end of period432
 497
 432
 497
Number of in-service consolidated properties at end of period:    
Continuing operations 449
 415
Discontinued operations 
 81
In-service consolidated square footage at end of period118,714
 119,656
 118,714
 119,656
 129,060
 120,659
Number of in-service joint venture properties at end of period40
 59
 40
 59
 40
 42
In-service joint venture square footage at end of period10,759
 13,956
 10,759
 13,956
 10,759
 11,286
Supplemental Performance Measures
In addition to net income computed in accordance with GAAP, we assess and measure the overall operating results of the General Partner and the Partnership using certain non-GAAP supplemental performance measures, which include (i) Funds From Operations ("FFO"), (ii) PNOI and (iii) Same-Property Net Operating Income - Cash Basis ("SPNOI").
These non-GAAP metrics are commonly used by industry analysts and investors as supplemental operating performance measures of REITs and are viewed by management to be useful indicators of operating performance. Historical cost accounting for real estate assets in accordance with GAAP implicitly assumes that the value of real estate assets diminishes predictably over time. Since real estate values instead have historically risen or fallen with market conditions, many industry analysts and investors have considered presentation of operating results for real estate companies that use historical cost accounting to be insufficient by themselves. Management believes that the use of FFO, PNOI and SPNOI, combined with net income (which remains the primary measure of performance), improves the understanding of operating results of REITs among the investing public and makes comparisons of REIT operating results more meaningful.
The most comparable GAAP measure to FFO is net income (loss) attributable to common shareholders or common unitholders, while the most comparable GAAP measure to PNOI and SPNOI is income (loss) from continuing operations before income taxes.
FFO, PNOI and SPNOI each exclude expenses that materially impact our overall results of operations and, therefore, should not be considered as a substitute for net income (loss) attributable to common shareholders or common unitholders, income (loss) from continuing operations before income taxes, or any other measures derived

in accordance with GAAP. Furthermore, these metrics may not be comparable to other similarly titled measures of other companies.

Funds From Operations
The National Association of Real Estate Investment Trusts ("NAREIT") created FFO as a non-GAAP supplemental measure of REIT operating performance. FFO, as defined by NAREIT, represents GAAP net income (loss), excluding gains or losses from sales of previously depreciated real estate assets, impairment charges related to depreciable real estate assets, taxes associated with sales of previously depreciated real estate assets plus certain non-cash items such as real estate asset depreciation and amortization, and after similar adjustments for unconsolidated partnerships and joint ventures. We calculate FFO in accordance with the definition that was adopted by the Board of Governors of NAREIT.
Management believes that the use of FFO as a performance measure enables investors and analysts to readily identify the operating results of the long-term assets that form the core of a REIT's activity and assists them in comparing these operating results between periods or between different companies that use the NAREIT definition of FFO.
The following table shows a reconciliation of net income attributable to common shareholders or common unitholders to the calculation of FFO attributable to common shareholders or common unitholders (in thousands):
Three Months Ended June 30, Six Months Ended June 30,Three Months Ended March 31,
2017 2016 2017 20162018 2017
Net income attributable to common shareholders of the General Partner$1,210,543
 $109,067
 $1,280,743
 $152,374
$72,963
 $70,200
Add back: Net income attributable to noncontrolling interests - common limited partnership interests in the Partnership11,240
 1,101
 11,892
 1,539
683
 652
Net income attributable to common unitholders of the Partnership1,221,783
 110,168
 1,292,635
 153,913
73,646
 70,852
Adjustments:          
Depreciation and amortization73,328
 80,161
 154,885
 157,959
77,529
 81,557
Company share of joint venture depreciation, amortization and other adjustments2,602
 4,253
 5,096
 7,892
2,161
 2,495
Gain on dissolution of unconsolidated company
 (30,697) 
 (30,697)
Impairment charges - depreciable property
 
 859
 

 859
Gains on depreciable property sales - wholly owned(1,137,418) (39,566) (1,174,464) (55,057)
Income tax expense (benefit) triggered by depreciable property sales19,658
 (157) 19,658
 186
Gains on depreciable property sales - share of joint venture(48,933) (91) (50,731) (18,033)
Gain on depreciable property sales - wholly owned(45,018) (37,046)
Income tax expense triggered by depreciable property sales10,329
 
Gains on depreciable property sales - share of unconsolidated joint ventures(6,217) (1,798)
FFO attributable to common unitholders of the Partnership$131,020
 $124,071
 $247,938
 $216,163
$112,430
 $116,919
Additional General Partner Adjustments:          
Net income attributable to noncontrolling interests - common limited partnership interests in the Partnership(11,240) (1,101) (11,892) (1,539)(683) (652)
Noncontrolling interest share of adjustments10,046
 (139) 9,640
 (623)(361) (427)
FFO attributable to common shareholders of the General Partner$129,826
 $122,831
 $245,686
 $214,001
$111,386
 $115,840
Property-Level Net Operating Income - Cash Basis
PNOI is comprised of rental revenues from continuing operations less rental expenses and real estate taxes from continuing operations, along with certain other adjusting items. As a performance metric that consists of only the cash-based revenues and expenses directly related to ongoing real estate rental operations, PNOI is narrower in scope than FFO.
PNOI, as we calculate it, may not be directly comparable to similarly titled, but differently calculated, measures for other REITs. We believe that PNOI is another useful supplemental performance measure, as it is an input in many REIT valuation models and it provides a means by which to evaluate the performance of the properties within our Rental Operations segments.

The major factors influencing PNOI are occupancy levels, acquisitions and sales, development properties that achieve stabilized operations, rental rate increases or decreases, and the recoverability of operating expenses.

Note 9 to the consolidated financial statements included in Part I, Item 1 of this Report shows a calculation of our PNOI for the sixthree months ended June 30,March 31, 2018 and 2017 and 2016 and provides a reconciliation of PNOI for our Rental Operations segments to income from continuing operations before income taxes.
Same Property Net Operating Income - Cash Basis
We also evaluate the performance of our properties, including our share of properties we jointly control, on a "same property" basis, using a metric referred to as SPNOI. We view SPNOI as a useful supplemental performance measure because it improves comparability between periods by eliminating the effects of changes in the composition of our portfolio.
On an individual property basis, SPNOI is generally computed in a consistent manner as PNOI.PNOI which also excludes income from lease buyouts.
We have definedEffective January 1, 2018, we define our same-property portfolio, for"same property" population once a year at the threebeginning of the current calendar year and six months ended June 30, 2017, as thoseinclude buildings that were stabilized (the term "stabilized" means properties that were owned andhave reached 90% leased or that have been in-service for at least one year since development completion or acquisition) as of January 1 2016, and held as in-service properties through the end of the reporting periods shown. In additionprior calendar year. The "same property" pool is also adjusted to excludingremove properties that were sold or identified as held-for-sale throughsubsequent to the endbeginning of the reporting periods shown,current calendar year. As such, the "same property" population for the period ended March 31, 2018 includes all properties that we also exclude properties where revenues from lease buyouts in excess of $250,000owned or jointly controlled at January 1, 2018, which had both been owned or jointly controlled and had reached stabilization by January 1, 2017, and have not been recognized in either the full calendar year 2016 or year-to-date calendar year 2017. sold.
A reconciliation of income from continuing operations before income taxes to SPNOI is presented as follows (in thousands, except percentage data):
 Three Months Ended June 30,Percent Six Months Ended June 30,Percent Three Months Ended March 31,Percent
 2017 2016Change 2017 2016Change 2018 2017Change
Income from continuing operations before income taxes $124,620
 $107,496

 $193,442
 $149,475
  $83,853
 $67,547

Share of SPNOI from unconsolidated joint ventures 3,749
 4,265
  7,473
 8,360
  4,008
 3,954
 
PNOI excluded from the same property population (17,644) (5,608)  (31,166) (10,875) 
PNOI excluded from the "same property" population (19,579) (4,762) 
Earnings from Service Operations (1,202) (3,816)  (2,977) (6,047)  (692) (1,775) 
Rental Operations revenues and expenses excluded from PNOI (3,318) (10,097)  (15,155) (22,305)  (8,477) (13,904) 
Non-Segment Items 1,996
 12,234
  64,461
 87,955
  59,625
 63,739
 
SPNOI $108,201
 $104,474
3.6% $216,078
 $206,563
4.6% $118,738
 $114,799
3.4%
The composition of the line items titled "Rental Operations revenues and expenses excluded from PNOI" and "Non-Segment Items" from the table above are shown in greater detail in Note 9 to the consolidated financial statements included in Part I, Item 1 of this Report.


We believe that the factors that impact SPNOI are generally the same as those that impact PNOI. The following table details the number of properties, square feet, average occupancy and cash rental rates for the properties included in SPNOI for the respective periods:

 Three Months Ended June 30, Six Months Ended June 30, Three Months Ended March 31,
 2017 2016 2017 2016 2018 2017
Number of properties 408 408 408 408 425 425
Square feet (in thousands) (1) 108,182 108,182 108,182 108,182 113,230 113,230
Average commencement occupancy percentage (2) 97.9% 97.5% 97.8% 96.8% 97.9% 97.6%
Average rental rate - cash basis (3) $4.15 $4.01 $4.13 $4.03 $4.27 $4.16
(1) Includes the total square feet of the consolidated properties that are in the same property population as well as 4.3 million square feet of space for unconsolidated joint ventures, which represents our ratable share of the 8.6 million total square feet of space for buildings owned by unconsolidated joint ventures that are in the same property population.
(1) Includes the total square feet of the consolidated properties that are in the "same property" population as well as 4.5 million square feet of space for unconsolidated joint ventures, which represents our ratable share of the 9.1 million total square feet of space for buildings owned by unconsolidated joint ventures that are in the "same property" population.(1) Includes the total square feet of the consolidated properties that are in the "same property" population as well as 4.5 million square feet of space for unconsolidated joint ventures, which represents our ratable share of the 9.1 million total square feet of space for buildings owned by unconsolidated joint ventures that are in the "same property" population.
(2) Commencement occupancy represents the percentage of total square feet where the leases have commenced.
(3) Represents the average annualized contractual rent per square foot for the six months ended June 30, 2017 and 2016 for tenants in occupancy in properties in the same property population. Cash rent does not include the tenant's obligation to pay property operating expenses and real estate taxes. If a tenant was within a free rent period at June 30, 2017 or 2016 its rent would equal zero for purposes of this metric.
(3) Represents the average annualized contractual rent per square foot for tenants in occupancy in properties in the "same property" population. Cash rent does not include the tenant's obligation to pay property operating expenses and real estate taxes. If a tenant was within a free rent period, its rent would equal zero for purposes of this metric.(3) Represents the average annualized contractual rent per square foot for tenants in occupancy in properties in the "same property" population. Cash rent does not include the tenant's obligation to pay property operating expenses and real estate taxes. If a tenant was within a free rent period, its rent would equal zero for purposes of this metric.

Comparison of Three Months Ended June 30, 2017March 31, 2018 to Three Months Ended June 30, 2016March 31, 2017
Rental and Related Revenue
The following table sets forth rental and related revenue from continuing operations by reportable segment, as well as total rental and related revenue from discontinued operations (in thousands):
Three Months Ended June 30,Three Months Ended March 31,
2017 20162018 2017
Rental and related revenue:      
Industrial$162,559
 $140,219
$189,315
 $156,882
Non-reportable Rental Operations and non-segment revenues3,277
 17,691
4,141
 14,794
Total rental and related revenue from continuing operations$165,836
 $157,910
$193,456
 $171,676
Rental and related revenue from discontinued operations35,165
 42,736
5
 46,239
Total rental and related revenue from continuing and discontinued operations$201,001
 $200,646
$193,461
 $217,915
The following factors contributed toprimary reasons for the increase in rental and related revenue from continuing and discontinued operations:operations were:
We acquired 2629 properties and placed 2225 developments in service from January 1, 20162017 to June 30, 2017,March 31, 2018, which provided incremental revenues from continuing operations of $15.1$24.6 million during the three months ended June 30, 2017,March 31, 2018, as compared to the same period in 2016.2017.
Increased occupancy and rental rates within our same-property"same property" portfolio also contributed to the increase to rental and related revenue from continuing operations. Average commencement occupancy and rental rates in our same-property portfolio both increased from the three months ended June 30, 2016.
The sale of 4019 in-service properties since January 1, 2016,2017, which did not meet the criteria to be classified within discontinued operations, resulted in a decrease of $13.5$11.8 million to rental and related revenue from continuing operations in the three months ended June 30, 2017,March 31, 2018, as compared to the same period in 2016,2017, which partially offset the aforementioned increases to rental and related revenues.revenue from continuing operations.
Rental and related revenue from discontinued operations for the three months ended June 30, 2017March 31, 2018 decreased compared to the same period in 20162017 as the result of the properties sold and classified within discontinued operations were not held for the entire three-month period ended June 30,being sold throughout 2017.
Rental Expenses and Real Estate Taxes
The following table sets forth rental expenses and real estate taxes from continuing operations by reportable segment, as well as total rental expenses and real estate taxes from discontinued operations (in thousands):

Three Months Ended June 30,Three Months Ended March 31,
2017 20162018 2017
Rental expenses:      
Industrial$12,664
 $10,392
$18,694
 $14,805
Non-reportable Rental Operations and non-segment expenses1,842
 6,625
1,702
 1,432
Total rental expenses from continuing operations$14,506
 $17,017
$20,396
 $16,237
Rental expenses from discontinued operations7,480
 8,711
(4) 9,034
Total rental expenses from continuing and discontinued operations$21,986
 $25,728
$20,392
 $25,271
Real estate taxes:      
Industrial$26,042
 $22,793
$30,418
 $25,388
Non-reportable Rental Operations and non-segment expenses860
 2,106
728
 1,123
Total real estate tax expense from continuing operations$26,902
 $24,899
$31,146
 $26,511
Real estate tax expense from discontinued operations3,690
 5,049
17
 5,962
Total real estate tax expense from continuing and discontinued operations$30,592
 $29,948
$31,163
 $32,473


Rental expenses from continuing operations decreasedincreased by $2.5$4.2 million during the three months ended June 30, 2017,March 31, 2018, compared to the same period in 2016.2017. The decreaseincrease to rental expenses was primarily the result of sales of office properties, which have higher utility and other operating costs relative to industrial properties, which did not meet the criteria to be classified within discontinued operations. The decrease was partially offset by acquisitions and developments placed in service from January 1, 20162017 to June 30, 2017.March 31, 2018, partially offset by the sale of properties included in continuing operations.


Real estate tax expense from continuing operations increased by $2.0$4.6 million during the three months ended June 30, 2017,March 31, 2018, compared to the same period in 2016.2017. The increase to real estate tax expense was mainly the result of acquisitions and developments placed in service from January 1, 20162017 to June 30, 2017March 31, 2018 and increases in real estate taxes on our existing base of properties. These increases to real estate tax expense were partially offset by the impact of property sales that did not meet the criteria to be classified within discontinued operations.
Service Operations
The following table sets forthdecreases in both rental expenses and real estate tax expense from discontinued operations are the componentsresult of net earnings from the Service Operations reportable segment (in thousands):properties classified within discontinued operations being sold throughout 2017.
 Three Months Ended June 30,
 2017 2016
Service Operations:   
General contractor and service fee revenue$23,576
 $26,044
General contractor and other services expenses(22,374) (22,228)
Net earnings from Service Operations$1,202
 $3,816

General contractor and service fee revenues, and net earnings from Service Operations, decreased during the three months ended June 30, 2017 due to less overall third party construction activity as we continue to focus our resources on wholly owned development projects.


Depreciation and Amortization
Depreciation and amortization expense from continuing operations increased from $61.1$62.0 million for the three months ended June 30, 2016March 31, 2017 to $67.0$77.5 million for the same period in 20172018 primarily as the result of the properties acquired and the developments placed in service since January 1, 2016.2017. The impact of acquired properties and developments placed in service was partially offset by property dispositions that did not meet the criteria to be classified within discontinued operations.

Equity in Earnings of Unconsolidated Joint Ventures
Equity in earnings of unconsolidated joint ventures represents our ownership share of net income from investments in unconsolidated companiesjoint ventures that generally own and operate rental properties. Equity in earnings of unconsolidated joint ventures increased from $3.5$4.7 million for the three months ended June 30, 2016March 31, 2017 to $51.9$8.3 million for the same period in 2017.2018. During the three months ended June 30, 2017,March 31, 2018, we recorded $48.9recognized $6.2 million toof equity in earnings primarily as the result of gains on the sale of our interests in three unconsolidated joint ventures two of which were sold as partrelated to our share of the Medical Office Portfolio Disposition.
Gaingain on Dissolutionsale of Unconsolidated Company
We recognized a $30.7 million gain related to the dissolution of an unconsolidatedfour joint venture duringbuildings. During the three months ended June 30, 2016. We did not experience any such dissolutions during the three months ended June 30, 2017.
Promote Income
WeMarch 31, 2017, we recognized $20.0$1.8 million of promote income from the saleequity in earnings of our interest in one of our unconsolidated joint ventures as partrelated to our share of the Medical Office Portfolio Disposition, during the three months ended June 30, 2017 compared to $24.1 milliongain on sale of promote income related to the dissolution of an unconsolidatedone joint venture during the three months ended June 30, 2016.building.
Gain on Sale of Properties - Continuing Operations

The $34.3$44.9 million recognized as gain on sale of properties in continuing operations for the three months ended June 30, 2017March 31, 2018 is the result of the sale of five properties that did not meet the criteria for inclusion in discontinued operations.
The $39.3 million recognized as gain on sale of properties in continuing operations for the three months ended June 30, 2016 was the result of the gain from the sale of six properties that did not meet the criteria for inclusion in discontinued operations.

The $37.0 million recognized as gain on sale of properties in continuing operations for the three months ended March 31, 2017 was the result of the sale of seven properties that did not meet the criteria for inclusion in discontinued operations.

General and Administrative Expenses
General and administrative expenses consist of two components. The first component includes general corporate expenses, and the second component includesrepresents the indirect operating costs not allocated to, or absorbed by, theeither development, or Rental Operationsleasing and operation of our wholly-ownedwholly owned properties or our Service Operations. TheSuch indirect operating costs that are either allocated to, or absorbed by, the development or Rental Operations of our wholly-owned properties, or our Service Operations, are primarily comprised of employee compensation, including related costs such as benefits and wage-related taxes, but also include other ancillary costs such as travel and information technology support. Total indirect operationoperating costs, prior to any allocation or absorption, and general corporate expenses are collectively referred to as our overall pool of overhead costs.
Those indirect costs not allocated to or absorbed by these operations are charged to general and administrative expenses. We regularly review our total overhead cost structure relative to our leasing, development and construction volume and adjust the level of total overhead, generally through changes in our level of staffing in various functional departments, as necessary, in order to control overall general and administrative expense.
General and administrative expenses increased from $11.6$19.2 million for the three months ended June 30, 2016March 31, 2017 to $11.9$21.0 million for the same period in 2017.2018. The following table sets forth the factors that led to the increased general

and administrative expenses (in millions):
General and administrative expenses - three-month period ended June 30, 2016$11.6
 Increase to overall pool of overhead costs1.5
 Increased absorption of costs by wholly owned leasing and development activities (1)(3.9)
 Decreased allocation of costs to Service Operations and Rental Operations (2)2.7
General and administrative expenses - three-month period ended June 30, 2017$11.9
General and administrative expenses - three-month period ended March 31, 2017$19.2
Increase to overall pool of overhead costs1.7
Decreased absorption of costs by wholly owned leasing and development activities (1)0.7
Increased allocation of costs to Service Operations and Rental Operations (2)(0.6)
General and administrative expenses - three-month period ended March 31, 2018$21.0
(1) We capitalized $5.0$8.2 million and $9.9$4.7 million of our total overhead costs to leasing and development, respectively, for consolidated properties during the three months ended June 30, 2017,March 31, 2018, compared to capitalizing $6.0$5.3 million and $5.0$8.3 million of such costs, respectively, for the three months ended June 30, 2016.March 31, 2017. Combined overhead costs capitalized to leasing and development totaled 41.6%30.4% and 32.1%33.3% of our overall pool of overhead costs for the three months ended June 30,March 31, 2018 and 2017, and 2016, respectively.
(2) The decreaseincrease in allocation of costs to Service Operations and Rental Operations resulted from a lowerhigher volume of third-partythird party construction projects performed for certain of our unconsolidated joint ventures during the three months ended June 30, 2017 as well as a lower allocation of property management and maintenance expenses to Rental Operations due to significantly increasing our focus on industrial properties which are less management intensive.March 31, 2018.


Interest Expense
Interest expense allocable to continuing operations decreased from $29.5$24.2 million for the three months ended June 30, 2016March 31, 2017 to $21.7$20.0 million for the three months ended June 30, 2017.March 31, 2018. The decrease to interest expense from continuing operations was primarily due to interest savings from reducing leverage by $1.10 billionrepaying outstanding debt with the proceeds from the Medical Office Portfolio Disposition, and refinancing higher rate indebtedness since March 31, 2016.senior unsecured notes during 2017.
WeWe capitalized $5.3$8.1 million and $3.8$4.2 million of interest costs for the three months ended June 30, 2017 and 2016, respectively.
Debt Extinguishment
During the three months ended June 30, 2017, we repaid our $250.0 million variable rate term loan that had a maturity date of January 2019 and bore interest at LIBOR plus 1.00%, and recognized a loss of $523,000 from the write-off of unamortized deferred financing costs. We also repaid $285.6 million of senior unsecured notes that had a stated interest rate of 6.50% and an effective interest rate of 6.08%, which had a scheduled maturity in JanuaryMarch 31, 2018 and recognized a loss of $9.0 million including the repayment premiums and the write-off of unamortized deferred financing costs.
During the three months ended June 30, 2016, we repurchased $72.0 million of our outstanding 5.95% senior unsecured notes, through a tender offer, prior to their maturity date in February 2017. This repurchase resulted in a loss on debt extinguishment of $2.4 million, which consisted of repurchase premium and the write-off of unamortized deferred financing costs.2017, respectively.
Discontinued Operations
The property-specific components of earnings that are classified as discontinued operations include rental revenues, rental expenses, real estate taxes, allocated interest expense and depreciation expense, as well as the net gain or loss on the disposition of the properties.properties and related income tax expenses.
We had no buildings classified as discontinued operations for the three months ended March 31, 2018 and had 81 consolidated properties classified as discontinued operations for both the three months ended June 30,March 31, 2017. The amounts classified in discontinued operations for the three months ended March 31, 2018 were comprised of true-up activity related to 2017 and June 30, 2016. property sales that were classified as discontinued operations. 

These 81 consolidated properties consisted of 73were all medical office properties that were sold and eight medical office properties held for sale.in 2017. As a result, we classified income before gain on sales of $11.1 million and $2.3$5.4 million within discontinued operations for the three months ended June 30, 2017 and 2016, respectively. The increase to income before gain on sales for these properties was the result of lower depreciation expense in the three months ended June 30, 2017 compared to the same period in 2016, as the properties met the criteria for held-for-sale classification and accordingly ceased depreciation for a short period of time prior to their sale during the three months ended June 30, 2017. The gains on disposal of these properties, totaling $1.11 billion,

and related income tax impact, totaling $11.6 million, for the three months ended June 30, 2017 are also reported in discontinued operations, which are further discussed in Note 10 to the consolidated financial statements included in Part I, Item 1 of this Report.
Comparison of Six Months Ended June 30, 2017 to Six Months Ended June 30, 2016
Rental and Related Revenue
The following table sets forth rental and related revenue from continuing operations by reportable segment, as well as total rental and related revenue from discontinued operations (in thousands):
 Six Months Ended June 30,
 2017 2016
Rental and related revenue:   
Industrial$319,441
 $283,199
Non-reportable Rental Operations and non-segment revenues18,071
 35,298
Total rental and related revenue from continuing operations$337,512
 $318,497
Rental and related revenue from discontinued operations81,404
 84,181
Total rental and related revenue from continuing and discontinued operations$418,916
 $402,678
The following factors contributed to the increase in rental and related revenue from continuing and discontinued operations:

Rental and related revenue from continuing operations includes lease termination fees, which relate to specific tenants who pay a fee to terminate their lease obligation before the end of the contractual lease term.The overall increase in rental and related revenue from continuing operations included an increase of $9.6 million in termination fees compared to the six months ended June 30, 2016.

Increased occupancy and rental rates within our same-property portfolio also contributed to the increase to rental and related revenue from continuing operations. Average commencement occupancy and rental rates in our same-property portfolio both increased from the six months ended June 30, 2016.

We acquired 26 properties and placed 22 developments in service from January 1, 2016 to June 30, 2017, which provided incremental revenues from continuing operations of $28.1 million in the six months ended June 30, 2017, as compared to the same period in 2016.

The sale of 40 in-service properties, since January 1, 2016, which did not meet the criteria for inclusion within discontinued operations, resulted in a decrease of $28.1 million to rental and related revenue from continuing operations in the six months ended June 30, 2017, as compared to the same period in 2016, which partially offset the aforementioned increases to rental and related revenues.

Rental and related revenue from discontinued operations for the six months ended June 30, 2017 decreased compared to the same period in 2016 as the properties sold and classified within discontinued operations were not held for the entire six-month period ended June 30, 2017.

Rental Expenses and Real Estate Taxes
The following table sets forth rental expenses and real estate taxes from continuing operations by reportable segment, as well as total rental expenses and real estate taxes from discontinued operations (in thousands):

 Six Months Ended June 30,
 2017 2016
Rental expenses:   
Industrial$27,469
 $24,754
Non-reportable Rental Operations and non-segment expenses3,274
 12,998
Total rental expenses from continuing operations$30,743
 $37,752
Rental expenses from discontinued operations16,514
 17,247
Total rental expenses from continuing and discontinued operations$47,257
 $54,999
Real estate taxes:   
Industrial$51,430
 $45,501
Non-reportable Rental Operations and non-segment expenses1,982
 4,184
Total real estate tax expense from continuing operations$53,412
 $49,685
Real estate tax expense from discontinued operations9,652
 9,890
Total real estate tax expense from continuing and discontinued operations$63,064
 $59,575
Overall, rental expenses from continuing operations decreased by $7.0 million in the six months endedJune 30, 2017, compared to the same period in 2016. The decrease to rental expenses from continuing operations was primarily the result of sales of office properties, which have higher utility and other operating costs relative to industrial properties, which did not meet the criteria to be classified within discontinued operations. The decrease was partially offset by acquisitions and developments placed in service from January 1, 2016 to June 30, 2017.
Overall, real estate tax expense from continuing operations increased by $3.7 million in the six months ended June 30, 2017, compared to the same period in 2016. The increase to real estate tax expense was mainly the result of acquisitions and developments placed in service from January 1, 2016 to June 30, 2017, and by increased real estate taxes for our existing base of properties, both partially offset by the impact of property sales that did not meet the criteria to be classified within discontinued operations.
Service Operations
The following table sets forth the components of net earnings from the Service Operations reportable segment (in thousands):
 Six Months Ended June 30,
 2017 2016
Service Operations:   
General contractor and service fee revenue$32,975
 $49,195
General contractor and other services expenses(29,998) (43,148)
Net earnings from Service Operations$2,977
 $6,047

General contractor and service fee revenues, and net earnings from Service Operations, decreased during the six months ended June 30, 2017 due to less overall third party construction activity as we continue to focus our resources on wholly owned development projects.

Depreciation and Amortization
Depreciation and amortization expense increased from $120.7 million during the six months ended June 30, 2016 to $129.0 million for the same period in 2017, primarily as the result of the properties acquired and the developments placed in service since January 1, 2016. The impact of acquired properties and developments placed in service was partially offset by asset dispositions that did not meet the criteria to be classified within discontinued operations.
Equity in Earnings
Equity in earnings increased from $25.4 million during the six months ended June 30, 2016 to $56.7 million for the same period in 2017. During the six months ended June 30, 2017, we recorded $50.7 million to equity in earnings

primarily as the result of the gains on sale of our interests in three unconsolidated joint ventures, two of which were sold as part of the Medical Office Portfolio Disposition, and our share of the gain on sale of one joint venture building. During the six months ended June 30, 2016, we recorded $18.0 million to equity in earnings for our share of the net gains on sale of unconsolidated joint venture properties or for sales of our interest in unconsolidated joint ventures.
Gain on Dissolution of Unconsolidated Company
We recognized a $30.7 million gain related to the dissolution of an unconsolidated joint venture during the six months ended June 30, 2016. We did not experience any similar dissolutions during the six months ended June 30, 2017.
Promote Income
We recognized $20.0 million of promote income from the sale of our interest in one of our unconsolidated joint ventures, as part of the Medical Office Portfolio Disposition, during the six months ended June 30, 2017 compared to $24.1 million of promote income related to the dissolution of an unconsolidated joint venture during the six months ended June 30, 2016.
Gain on Sale of Properties - Continuing Operations
The $71.4 million recognized in continuing operations for the six months ended June 30, 2017 is comprised primarily of the gains from the sale of 12 properties. These properties did not meet the criteria for inclusion in discontinued operations.
The $54.9 million recognized in continuing operations for the six months ended June 30, 2016 is primarily comprised of the gains from the sale of nine properties that did not meet the criteria for inclusion in discontinued operations.
Impairment Charge
Impairment charges classified in continuing operations include the impairment of undeveloped land and buildings. We recognized impairment charges of $859,000 on one building for the six months ended June 30, 2017. We recognized impairment charges of $12.1 million on 174 acres of land, for the six months ended June 30, 2016. These impairment charges were the result of changes in the intended use or plans for sale for certain of our investments in undeveloped land.
General and Administrative Expense
General and administrative expenses increased from $29.7 million for the six months ended June 30, 2016 to $31.1 million for the same period in 2017. The following table sets forth the factors that led to the increased general and administrative expenses (in millions):
General and administrative expenses - six months ended June 30, 2016$29.7
Increase to overall pool of overhead costs0.4
Increased absorption of costs by wholly owned leasing and development activities (1)(4.4)
Decreased allocation of costs to Service Operations and Rental Operations (2)5.4
General and administrative expenses - six months ended June 30, 2017$31.1
(1) We capitalized $10.2 million and $18.2 million of our total overhead costs to leasing and development, respectively, for consolidated properties during the six months ended June 30, 2017, compared to capitalizing $12.8 million and $11.3 million of such costs, respectively, for the six months ended June 30, 2016. Combined overhead costs capitalized to leasing and development totaled 37.2% and 31.7% of our overall pool of overhead costs for the six months ended June 30, 2017 and 2016, respectively.
(2) The decrease in allocation of costs to Service Operations and Rental Operations resulted from a lower volume of third-party construction projects during the six months ended June 30, 2017 as well as a lower allocation of property management and maintenance expenses to Rental Operations due to significantly increasing our focus on industrial properties, which are less management intensive.


Interest Expense
Interest expense allocable to continuing operations decreased from $59.6 million for the six months ended June 30, 2016 to $44.6 million for the six months ended June 30, 2017. The decrease to interest expense from continuing operations was primarily due to interest savings from reducing leverage by $1.10 billion and refinancing higher rate indebtedness since March 31, 2016.
We capitalized $9.5 million of interest costs during both the six months ended June 30, 2017 and June 30, 2016.
Debt Extinguishment
During the six months ended June 30, 2017, we repaid our $250.0 million variable rate term loan that had a maturity date of January 2019 and bore interest at LIBOR plus 1.00%, and recognized a loss of $523,000 from the write-off of unamortized deferred financing costs. We also repaid $285.6 million of senior unsecured notes that had a stated interest rate of 6.50% and an effective interest rate of 6.08%, which had a scheduled maturity in January 2018, and recognized a loss of $9.0 million including the repayment premium and the write-off of unamortized deferred financing costs.
During the six months ended June 30, 2016, we repurchased $72.0 million of our outstanding 5.95% Senior Unsecured Notes, through a tender offer, prior to their maturity date in February 2017. We recognized a total loss on debt extinguishment of $2.4 million during the six months ended June 30, 2016, which included repurchase premiums, prepayment premiums as well as the write-off of unamortized deferred financing costs.
Discontinued Operations
The operations of 81 consolidated properties were classified as discontinued operations for both the six months ended June 30, 2017 and June 30, 2016. These 81 consolidated properties consisted of 73 medical office properties that were sold and eight medical office properties held for sale. As a result, we classified income before gain on sales, of $15.2 million and $4.5 million within discontinued operations for the six months ended June 30, 2017 and 2016, respectively. The increase to income before gain on sales for these properties was the result of lower depreciation expense in the six months ended June 30, 2017 compared to the same period in 2016, as the properties met the criteria for held-for-sale classification and accordingly ceased depreciation for a short period of time prior to their sale during the three months ended June 30, 2017. The gains on disposal of these properties, totaling $1.11 billion, and related income tax impact, totaling $11.6 million, for the six months ended June 30, 2017 are also reported in discontinued operations, which are further discussed in Note 10 to the consolidated financial statements included in Part I, Item 1 of this Report.
Liquidity and Capital Resources


Sources of Liquidity


We expect to meet our short-term liquidity requirements over the next 12 months, including maturities of indebtedness, payments of dividends and distributions and the capital expenditures needed to maintain our current real estate assets, primarily through working capital, net cash provided by operating activities and proceeds received from real estate dispositions. We had no$75.0 million of outstanding borrowings on the Partnership's $1.20 billion unsecured line of credit, had $76.3$160.9 million of cash on hand and held $839.1$59.2 million of restricted cash for future like kindlike-kind exchange transactions at June 30, 2017.March 31, 2018.


In addition to our existing sources of liquidity, we expect to meet long-term liquidity requirements, such as scheduled mortgage and unsecured debt maturities, property acquisitions, financing of development activities and other capital improvements, through multiple sources of capital including operating cash flow, proceeds from property dispositions and through accessing the public debt and equity markets. At June 30, 2017,March 31, 2018, we also held $400.0$365.0 million of notes receivable from the buyers ofvarious entities that purchased our medical office properties that will be repaidin 2017, which are scheduled to mature at various points over a three-year period.through January 2020.



Rental Operations


Cash flows from Rental Operations is our primary source of liquidity and provides a stable source of cash flow to fund operational expenses. We believe that this cash-based revenue stream is substantially aligned with revenue recognition (except for items such as periodic straight-line rental income accruals and amortization of above or below market rents) as cash receipts from the leasing of rental properties are generally received in advance of, or a short time following, the actual revenue recognition.


We are subject to a number of risks related to general economic conditions, including reduced occupancy, tenant defaults and bankruptcies and potential reduction in rental rates upon renewal or re-letting of properties, any of which would result in reduced cash flow from operations.


Unsecured Debt and Equity Securities


We use the Partnership's unsecured line of credit (which is guaranteed by the General Partner) as a temporary source of capital to fund development activities, acquire additional rental properties and provide working capital.


The Partnership has issued debt securities pursuant to certain indentures and related supplemental indentures, which also require us to comply with financial ratios and other covenants regarding our operations. We were in compliance with all such covenants, as well as applicable covenants under our unsecured line of credit, at June 30, 2017.March 31, 2018.


At June 30, 2017,March 31, 2018, we had on file with the SEC an automatic shelf registration statement on Form S-3 relating to the offer and sale, from time to time, of an indeterminate amount of debt and equity securities (including guarantees of the Partnership's debt securities by the General Partner). This automatic shelf registration statement was renewed on April 30, 2018. Equity securities are offered and sold by the General Partner, and the net proceeds of such offerings are contributed to the Partnership in exchange for additional General Partner Units or Preferred Units. From time to time, we expect to issue additional securities under this automatic shelf registration statement to fund the repayment of long-term debt upon maturity and for other general corporate purposes.


The General Partner has an at the market ("ATM") equity program that allows it to issue new common shares from time to time, with an aggregate offering price of up to $200.0 million. During the sixthree months ended June 30, 2017,March 31,

2018, the General Partner did not issue any common shares pursuant to its ATM equity program. As of June 30, 2017,March 31, 2018, the ATM equity program still had $108.1 million worth of new common shares available to issue.


Sale of Real Estate Assets
We regularly work to identify, consider and pursue opportunities to dispose of non-strategic properties on an opportunistic basis and on a basis that is generally consistent with our strategic plans. Our ability to dispose of such properties on favorable terms, or at all, is dependent upon a number of factors including the availability of credit to potential buyers to purchase properties at prices that we consider acceptable. Although we believe that we have demonstrated our ability to generate significant liquidity through the disposition of non-strategic properties, potential future adverse changes to general market and economic conditions could negatively impact our further ability to dispose of such properties.
Sales of land and depreciable properties provided $1.98 billion$131.4 million in net proceeds during the sixthree months ended June 30, 2017. We also hold $70.0 million of notes guaranteed by a buyer with an A+ rated health system and $330.0 million of first mortgages that we provided for certain of the properties in the Medical Office Portfolio, and which are expected to mature in various tranches over the next three years with the last maturity date in January 2020.March 31, 2018.
Transactions with Unconsolidated Joint Ventures
Transactions with unconsolidated joint ventures also provide a source of liquidity. From time to time we will sell properties to unconsolidated joint ventures, while retaining a continuing interest in that entity, and receive proceeds commensurate to those interests that we do not own. Additionally, unconsolidated joint ventures will from time to

time obtain debt financing or sell properties and will then distribute to us, and our joint venture partners, all or a portion of the proceeds from such transactions. During the sixthree months ended June 30, 2017,March 31, 2018, our share of sale and capital distributions from unconsolidated joint ventures totaled $111.6$9.4 million.
Uses of Liquidity
Our principal uses of liquidity include the following:
property investment;
leasing/capital costs;
dividends and distributions to shareholders and unitholders;
long-term debt maturities;
opportunistic repurchases of outstanding debt; and
other contractual obligations.
Property Investment
Our overall strategy is to continue to increase our investment in quality industrial properties.properties, primarily through development, on both a speculative and build-to-suit basis, supplemented with acquisitions in higher barrier markets with the highest growth potential. Pursuant to this strategy, we evaluate development and acquisition opportunities based upon our market outlook, including general economic conditions, supply and long-term growth potential. Our ability to make future property investments is dependent upon identifying suitable acquisition and development opportunities, and our continued access to our longer-term sources of liquidity, including issuances of debt or equity securities as well as generating cash flow by disposing of selected properties.
  
Leasing/Capital Costs
Tenant improvements and lease-related costs pertaining to our initial leasing of newly completed space, or vacant space in acquired properties, are referred to as first generation expenditures. Such first generation expenditures for tenant improvements are included within "development of real estate investments" in our Consolidated Statements of Cash Flows, while such expenditures for lease-related costs are included within "other deferred leasing costs."
Cash expenditures related to the construction of a building's shell, as well as the associated site improvements, are also included within "development of real estate investments" in our Consolidated Statements of Cash Flows.

Tenant improvements and leasing costs to renew or re-let rental space that we previously leased to tenants for new second generation leases are referred to as second generation expenditures. Building improvements that are not specific to any tenant but serve to improve integral components of our real estate properties are also second generation expenditures. One of the principal uses of our liquidity is to fund the second generation leasing/capital expenditures of our real estate investments.
The following table summarizes our second generation capital expenditures by type of expenditure, as well as capital expenditures for the development of real estate investments and for other deferred leasing costs (in thousands):
Six Months Ended June 30,Three Months Ended March 31,
2017 20162018 2017
Second generation tenant improvements$7,363
 $14,445
$3,602
 $3,694
Second generation leasing costs10,018
 14,711
10,278
 5,650
Building improvements2,731
 1,081
222
 1,087
Total second generation capital expenditures$20,112
 $30,237
$14,102
 $10,431
Development of real estate investments$288,833
 $213,262
$104,346
 $112,727
Other deferred leasing costs$16,091
 $14,993
$9,798
 $4,398
The capital expenditures in the table above include the capitalization of internal overhead costs. We capitalized $10.2$8.2 million and $12.8$5.3 million of overhead costs related to leasing activities, including both first and second generation leases, during the sixthree months ended June 30,March 31, 2018 and 2017, and 2016, respectively. We capitalized $18.2$4.7 million

and $11.3$8.3 million of overhead costs related to development activities, including both development and tenant improvement projects on first and second generation space, during the sixthree months ended June 30,March 31, 2018 and 2017, and 2016, respectively. Combined overhead costs capitalized to leasing and development totaled 37.2%30.4% and 31.7%33.3% of our overall pool of overhead costs for the sixthree months ended June 30,March 31, 2018 and 2017, and 2016, respectively. Further discussion of the capitalization of overhead costs can be found herein, in the quarter-to-quarter comparison of general and administrative expenses of this Item 2 as well as in the Critical Accounting Policies section of Management's Discussion and Analysis of Financial Condition and Results of Operations in our 20162017 Annual Report.


In addition to the capitalization of overhead costs, the totals for development of real estate assets in the table above include the capitalization of $9.5$8.1 million and $4.2 million of interest costs during both the sixthree months ended June 30,March 31, 2018 and 2017, and 2016.respectively.
The following table summarizes our second generation capital expenditures by reportable operating segment (in thousands):
Six Months Ended June 30,Three Months Ended March 31,
2017 20162018 2017
Industrial$18,550
 $25,594
$14,044
 $9,401
Non-reportable Rental Operations1,562
 4,643
58
 1,030
Total$20,112
 $30,237
$14,102
 $10,431


Both our first and second generation expenditures vary significantly between leases on a per square foot basis, dependent upon several factors including the product type, the nature of a tenant's operations, the specific physical characteristics of each individual property and the market in which the property is located.


Dividend and Distribution Requirements
The General Partner is required to meet the distribution requirements of the Code in order to maintain its REIT status. We paid regular dividends or distributions of $0.19$0.20 per common share or Common Unit in the first and second quartersquarter of 2017,

2018, and the General Partner's board of directors declared dividends or distributions of $0.19$0.20 per common share or Common Unit for the thirdsecond quarter of 2017.2018.
We expect to continue to distribute at least an amount equal to our taxable earnings, to meet the requirements to maintain the General Partner's REIT status, and additional amounts as determined by the General Partner's board of directors. Distributions are declared at the discretion of the General Partner's board of directors and are subject to actual cash available for distribution, our financial condition, capital requirements and such other factors as the General Partner's board of directors deems relevant.
Debt Maturities
Debt outstanding at June 30, 2017March 31, 2018 had a face value totaling $2.30$2.52 billion with a weighted average interest rate of 4.61%4.28% and maturities at various dates through 2028. Of this total amount, we had $1.96$2.13 billion of unsecured debt, $338.3$310.4 million of secured debt and no$75.0 million of outstanding borrowings on our unsecured line of credit at June 30, 2017.March 31, 2018. Scheduled principal amortization, maturities and early repayments of such debt totaled $631.0$2.0 million for the sixthree months ended June 30, 2017.March 31, 2018.
The following table is a summary of the scheduled future amortization and maturities of our indebtedness at June 30, 2017March 31, 2018 (in thousands, except percentage data):

Future Repayments  Future Repayments  
Year
Scheduled
Amortization

 Maturities Total 
Weighted Average Interest Rate of
Future Repayments

Scheduled
Amortization
 Maturities Total 
Weighted Average Interest Rate of
Future Repayments
Remainder of 2017$4,543
 $23,262
 $27,805
 5.81%
20187,768
 
 7,768
 6.18%
Remainder of 2018$5,768
 $
 $5,768
 6.17%
20196,936
 268,438
 275,374
 7.60%6,935
 268,438
 275,373
 7.61%
20205,381
 128,660
 134,041
 6.71%5,381
 
 5,381
 5.82%
20213,416
 259,047
 262,463
 3.99%3,416
 259,047
 262,463
 3.99%
20223,611
 600,000
 603,611
 4.20%3,611
 600,000
 603,611
 4.20%
20233,817
 250,000
 253,817
 3.75%3,817
 325,000
 328,817
 3.52%
20244,036
 300,000
 304,036
 3.92%4,036
 300,000
 304,036
 3.92%
20253,938
 
 3,938
 5.53%3,938
 
 3,938
 5.60%
20262,029
 375,000
 377,029
 3.37%2,029
 375,000
 377,029
 3.37%
2027358
 
 358
 6.42%358
 300,000
 300,358
 3.40%
2028
 50,000
 50,000
 7.29%
Thereafter
 50,000
 50,000
 7.29%
 
 
 N/A
$45,833
 $2,254,407
 $2,300,240
 4.61%$39,289
 $2,477,485
 $2,516,774
 4.28%
In July 2017, we redeemed $128.7 million
The Partnership’s unsecured line of 6.75% senior unsecured notes due March 2020.

credit is reflected in the table above as maturing in January 2023, based on the ability to exercise the two six-month extension options from its stated maturity date of January 2022 (see Note 6). We anticipate generating capital to fund our debt maturities by using undistributed cash generated from our Rental Operations and property dispositions and by raising additional capital from future debt or equity transactions.


Repayments of Outstanding Debt

In June 2017, we repaid our $250.0 million variable rate term loan that had a maturity date of January 2019 and bore interest at LIBOR plus 1.00%. We also repaid $285.6 million of senior unsecured notes that had a stated interest rate of 6.50% and an effective interest rate of 6.08%, prior to their maturity date in January 2018.


To the extent that it supports our overall capital strategy, we may purchase or redeem some of our outstanding unsecured notes prior to their stated maturities.


Contractual Obligations


Aside from repayments of long-term debt, described above, our outstanding ground lease obligation has significantly decreased due to the Medical Office Portfolio Disposition as all our ground leases were held within the medical office segment. There arethere have been no other material changes in our outstanding commitments since December 31, 2016,2017, as previously discussed in our 20162017 Annual Report.



Historical Cash Flows
Cash, and cash equivalents and restricted cash were $76.3$228.4 million and $91.7$79.6 million at June 30,March 31, 2018 and 2017, and 2016, respectively. The following table highlights significant changes in net cash associated with our operating, investing and financing activities (in millions):

Six Months Ended June 30,Three Months Ended March 31,
2017 20162018 2017
General Partner      
Net cash provided by operating activities$231.4
 $198.2
$113.2
 $109.7
Net cash provided by investing activities$627.5
 $41.5
Net cash used for financing activities$(795.3) $(170.5)
Net cash used for investing activities$(38.3) $(188.9)
Net cash (used for) provided by financing activities$(40.1) $101.7
      
Partnership      
Net cash provided by operating activities$231.4
 $198.2
$113.2
 $109.7
Net cash provided by investing activities$627.5
 $41.5
Net cash used for financing activities$(795.3) $(170.5)
Net cash used for investing activities$(38.3) $(188.9)
Net cash (used for) provided by financing activities$(40.1) $101.7


Operating Activities


Cash flows from operating activities provide the cash necessary to meet normal operational requirements of our Rental Operations and Service Operations activities. The receipt of rental income from Rental Operations continues to be our primary source of operating cash flows. The increase to cash flow provided by operating activities, compared to the sixthree months ended June 30, 2016,March 31, 2017, was due to improved operational performanceincreasing our investment in industrial properties and lower cash paid for interest, as the result of the significant debt repayments orand refinancings that took place throughout 2016 and2017, partially offset by the impact of the disposal of our medical office properties during 2017.


Investing Activities


Investing activities are one of the primary uses of our liquidity. Development and acquisition activities typically generate additional rental revenues and provide cash flows for operational requirements. Highlights of significant cash sources and uses are as follows:
During the sixthree months ended June 30, 2017,March 31, 2018, we paid cash of $237.5$22.8 million and $67.9$67.3 million, respectively, for real estate and undeveloped land acquisitions, compared to $16.0$114.4 million and $27.2$50.4 million for real estate and undeveloped land acquisitions in the same period in 2016.2017.
Real estate development costs were $288.8$104.3 million during the sixthree months ended June 30, 2017,March 31, 2018, compared to $213.3$112.7 million for the same period in 2016.2017.
Sales of land and depreciated properties provided $1.98 billion$131.4 million in net proceeds for the sixthree months ended June 30, 2017,March 31, 2018, compared to $174.9$103.1 million for the same period in 2016.2017.
The increased cash outflowsinflows reflected in the Other Assets line of the Consolidated Statements of Cash Flows for the sixthree months ended June 30, 2017March 31, 2018 was the result of a portionreceiving repayments of the proceeds from the Medical Office Portfolio Disposition being transferred into escrow for use$39.8 million on two seller-financed mortgages. There were no such repayments in future like kind exchange transactions, and not meeting the criteria for classification as cash and equivalents. The cash outflows from such transfers totaled $798.6 million during the six months ended June 30, 2017, compared to $17.7 million during the six months ended June 30, 2016.2017.
Second generation tenant improvements, leasing costs and building improvements totaled $20.1$14.1 million for the sixthree months ended June 30, 2017March 31, 2018 compared to $30.2$10.4 million for the same period in 2016.2017.
For the sixthree months ended June 30, 2017,March 31, 2018, we received $111.6$9.4 million in capital distributions from unconsolidated joint ventures, primarily related to the sale of four properties within two of our joint ventures, compared to $36.3$4.9 million during the same period in 2016.
For the six months ended June 30, 2017, we made capital contributions of $2.0 million to unconsolidated joint ventures, compared to $51.0 million during the same period in 2016.



2017.
Financing Activities
The following items highlight significant capital transactions:
During the sixthree months ended June 30, 2016, the General Partner issued 4.2 million common shares pursuant to its ATM equity program, for net proceeds of approximately $98.5 million. The General Partner did not issue any shares under its ATM equity program during the six months ended June 30, 2017.
In June 2016,March 31, 2018, the Partnership issued $375.0 million of unsecured notes that bear interest at a stated rate of 3.25%, have an effective rate of 3.36%, and mature on June 30, 2026. A portion of these proceeds was used to repurchase $72.0 million of our 5.95% notes due February 2017,repaid one secured loan for a cash payment of $74.5 million.
In June 2017, we paid $545.9 million to execute the early repayment of a $250.0 million variable rate term loan as well as the early redemption of $285.6 million of senior unsecured notes. These cash payments included the prepayment premium for the senior unsecured notes.
During the six months ended June 30, 2017, we$215,000. The Partnership repaid threetwo secured loans for $42.9 million. We repaid four secured loans for $344.7$15.9 million during the same period in 2016.2017.

For the sixthree months ended June 30, 2017, we repaid $48.0 million ofMarch 31, 2018, the Partnership increased net borrowings on the Partnership's unsecured line of credit by $75.0 million, compared to $71.0an increase of $189.0 million of net borrowings for the same period in 2016.2017.
We paid regular cash dividends or distributions totaling $71.4 million and $67.6 million for the three months ended March 31, 2018 and 2017, respectively.
Changes in book cash overdrafts are classified as financing activities within our consolidated Statements of Cash Flows. Book cash overdrafts were $2.9 million and $20.6 million at March 31, 2018 and 2017, respectively.
We paid regular cash dividends or distributions totaling $135.1 million and $124.7 million for the six months ended June 30, 2017 and 2016, respectively.


Off Balance Sheet Arrangements - Investments in Unconsolidated CompaniesJoint Ventures
We analyze our investments in unconsolidated joint ventures to determine if they meet the criteria for classification as a VIE and would require consolidation. We (i) evaluate the sufficiency of the total equity at risk, (ii) review the voting rights and decision-making authority of the equity investment holders as a group and whether there are limited partners (or similar owning entities) that lack substantive participating or kick out rights and (iii) establish whether or not activities within the venture are on behalf of an investor with disproportionately few voting rights in making this VIE determination. To the extent that we (i) are the sole entity that has the power to direct the activities of the VIE and (ii) have the obligation or rights to absorb the VIE's losses or receive its benefits, then we would be determined to be the primary beneficiary of the VIE and would consolidate it. At the end of each reporting period, we re-assess our conclusions as to which, if any, party within the VIE is considered the primary beneficiary. To the extent that our joint ventures do not qualify as VIEs, we further assess each joint venture partner's substantive participating rights to determine if the venture should be consolidated. There were no unconsolidated joint ventures that met the criteria to be a VIE at June 30, 2017.March 31, 2018.
We have equity interests in unconsolidated partnerships and limited liability companies that primarily own and operate rental properties and hold land for development. These unconsolidated joint ventures are primarily engaged in the operationsoperation and development of industrial real estate properties. These investments provide us with increased market share and tenant and property diversification. The equity method of accounting is used for these investments in which we have the ability to exercise significant influence, but not control, over operating and financial policies. As a result, the assets and liabilities of these entities are not included on our balance sheet. Our investments in and advances to unconsolidated joint ventures represented approximately 2% and 3% of our total assets at June 30, 2017March 31, 2018 and December 31, 2016, respectively.2017. Total assets of our unconsolidated joint ventures were $539.7$523.9 million and $743.4$556.2 million at June 30, 2017March 31, 2018 and December 31, 2016,2017, respectively. The combined revenues of our unconsolidated joint ventures totaled $42.8$15.1 million and $70.8$21.5 million for the sixthree months ended June 30,March 31, 2018 and 2017, and 2016, respectively.
We have guaranteed the repayment of certain secured and unsecured loans of our unconsolidated joint ventures. The outstanding balances on the guaranteed portion of these loans totaled $66.7$102.9 million at June 30, 2017.March 31, 2018.




Item 3.    Quantitative and Qualitative Disclosures About Market Risk
We are exposed to interest rate changes primarily as a result of our line of credit and our long-term borrowings. Our interest rate risk management objective is to limit the impact of interest rate changes on earnings and cash flows and to lower overall borrowing costs. To achieve our objectives, we borrow primarily at fixed rates. We do not enter into derivative or interest rate transactions for speculative purposes.
Our interest rate risk is monitored using a variety of techniques. The table below presents the principal amounts (in thousands) of the expected annual maturities, weighted average interest rates for the average debt outstanding in the specified period, fair values (in thousands) and other terms required to evaluate the expected cash flows and sensitivity to interest rate changes.

Remainder of 2017 2018 2019 2020 2021 Thereafter Face Value Fair ValueRemainder of 2018 2019 2020 2021 2022 Thereafter Face Value Fair Value
Fixed rate
secured debt
$26,224
 $4,783
 $272,215
 $3,583
 $12,163
 $16,489
 $335,457
 $359,928
$3,438
 $272,215
 $3,583
 $12,163
 $3,311
 $13,178
 $307,888
 $320,652
Weighted average
interest rate
5.84% 6.46% 7.63% 5.98% 5.73% 6.07% 7.31%  6.50% 7.63% 5.98% 5.73% 6.06% 6.07% 7.44%  
Variable rate
secured debt
$300
 $300
 $300
 $300
 $300
 $1,300
 $2,800
 $2,800
$300
 $300
 $300
 $300
 $300
 $1,000
 $2,500
 $2,500
Weighted average
interest rate
0.97% 0.97% 0.97% 0.97% 0.97% 0.97% 0.97%  1.67% 1.67% 1.67% 1.67% 1.67% 1.67% 1.67%  
Fixed rate
unsecured debt*
$1,281
 $2,685
 $2,859
 $130,158
 $250,000
 $1,575,000
 $1,961,983
 $2,043,520
Fixed rate
unsecured debt
$2,030
 $2,858
 $1,498
 $250,000
 $600,000
 $1,275,000
 $2,131,386
 $2,129,390
Weighted average
interest rate
6.26% 6.26% 6.26% 6.74% 3.91% 3.96% 4.15%  6.26% 6.26% 6.26% 3.91% 4.20% 3.72% 3.88%  
Variable rate unsecured
line of credit*
$
 $
 $
 $
 $
 $75,000
 $75,000
 $75,000
Rate at March 31, 2018N/A
 N/A
 N/A
 N/A
 N/A
 2.75% 2.75%  
* In July 2017, we redeemed $128.7 millionThe Partnership’s unsecured line of 6.75% senior unsecured notes due March 2020.credit is reflected in the table above as maturing in January 2023, based on the ability to exercise the two six-month extension options from its stated maturity date of January 2022 (see Note 6).
As the above table incorporates only those exposures that existed at June 30, 2017,March 31, 2018, it does not consider those exposures or positions that could arise after that date. As a result, the ultimate impact of interest rate fluctuations will depend on future exposures that arise and our hedging strategies at that time, to the extent we are party to interest rate derivatives, and interest rates.time. Interest expense on our unsecured line of credit, to the extent we have outstanding borrowings, will be affected by fluctuations in the LIBOR indices as well as changes in our credit rating. The interest rate at such point in the future as we may renew, extend or replace our unsecured line of credit will be heavily dependent upon the state of the credit environment.




Item 4.    Controls and Procedures
Controls and Procedures (General Partner)
(a) Evaluation of Disclosure Controls and Procedures
We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms. These disclosure controls and procedures are further designed to ensure that such information is accumulated and communicated to management, including the Chief Executive Officer and the Chief Financial Officer, to allow timely decisions regarding required disclosure.
We carried out an evaluation, under the supervision and with the participation of management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures pursuant to Exchange Act Rules 13a-15 and 15d-15. Based upon the foregoing, the Chief Executive Officer and the Chief Financial Officer concluded that, as of the end of the period covered by this Report, our disclosure controls and procedures were effective.



(b) Changes in Internal Control over Financial Reporting
There have been no changes in our internal control over financial reporting during the period covered by this Report that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.


Controls and Procedures (Partnership)


(a) Evaluation of Disclosure Controls and Procedures
We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms. These disclosure controls and procedures are further designed to ensure that such information is accumulated and communicated to management, including the General Partner's Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding required disclosure.
We carried out an evaluation, under the supervision and with the participation of management, including the General Partner's Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures pursuant to Exchange Act Rules 13a-15 and 15d-15. Based upon the foregoing, the General Partner's Chief Executive Officer and Chief Financial Officer concluded that, as of the end of the period covered by this Report, our disclosure controls and procedures were effective.
(b) Changes in Internal Control over Financial Reporting
There have been no changes in our internal control over financial reporting during the period covered by this Report that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.


Part II - Other Information
 
Item 1. Legal Proceedings
From time to time, we are parties to a variety of legal proceedings and claims arising in the ordinary course of our businesses. While these matters generally are covered by insurance, there is no assurance that our insurance will cover any particular proceeding or claim. We are not subject to any material pending legal proceedings other than routine litigation arising in the ordinary course of business. We presently believe that all of the proceedings to which we were subject as of June 30, 2017,March 31, 2018, taken as a whole, will not have a material adverse effect on our liquidity, business, financial condition or results of operations.
Item 1A. Risk Factors
In addition to the information set forth in this Report, you also should carefully review and consider the information contained in our other reports and periodic filings that we make with the SEC, including, without limitation the information contained under the caption "Item 1A. Risk Factors" in our 20162017 Annual Report. The risks and uncertainties described in our 20162017 Annual Report are not the only risks that we face. Additional risks and uncertainties not currently known to us, or that we presently deem to be immaterial, also may materially adversely affect our business, financial condition and results of operations. There have not been any material changes to the risk factors that we face since our 20162017 Annual Report.
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
(a) Unregistered Sales of Equity Securities
None
(b) Use of Proceeds
None
(c) Issuer Purchases of Equity Securities
From time to time, we repurchase our securities under a repurchase program that initially was approved by the General Partner's board of directors and publicly announced in October 2001 (the "Repurchase Program").
On January 25, 2017,31, 2018, the General Partner's board of directors adopted a resolution that amended and restated the Repurchase Program and delegated authority to management to repurchase a maximum of $100.0 million of the General Partner's common shares, $500.0 million of the Partnership's debt securities and $500.0 million of the General Partner's preferred shares, subject to the prior notification of the Chairman of the Finance Committee of the board of directors of planned repurchases within these limits. We did not repurchase any equity securities through the Repurchase Program during the three months ended June 30, 2017.March 31, 2018.
Item 3. Defaults upon Senior Securities


During the period covered by this Report, we did not default under the terms of any of our material indebtedness.


Item 4. Mine Safety Disclosures


Not applicable.
Item 5. Other Information


During the period covered by this Report, there was no information required to be disclosed by us in a Current Report on Form 8-K that was not so reported, nor were there any material changes to the procedures by which our security holders may recommend nominees to the General Partner's board of directors.


Item 6. Exhibits

(a) Exhibits
   
3.1

 
   
3.2

 

   
3.3

 
   
3.4 (i)

 
   
3.4 (ii)

 
   
3.4 (iii)

 
   
3.4 (iv)

 
   
3.4 (v)

 
10.1
10.1 (i)
First Amendment to Agreement of Purchase and Sale (Pool I) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.1 (ii)
Second Amendment to Agreement of Purchase and Sale (Pool I) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.2
Agreement of Purchase and Sale (Pool II) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.3
Agreement of Purchase and Sale (Pool III) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.4
Agreement of Purchase and Sale (Pool IV) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.5
Agreement of Purchase and Sale (Pool V) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.6
Agreement of Purchase and Sale (Pool VI) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.7
Agreement of Purchase and Sale (Pool VII) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.8
Agreement of Purchase and Sale (Pool VIII) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.9
Agreement of Purchase and Sale (Pool IX) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*

10.10
Agreement of Purchase and Sale (Pool X) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.11
Agreement of Purchase and Sale (Pool XI) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.12
Agreement of Purchase and Sale (Pool XII) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.13
Agreement of Purchase and Sale (Pool XIII) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.13 (i)
First Amendment to Agreement of Purchase and Sale (Pool XIII) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.14
Agreement of Purchase and Sale (Pool XIV) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.15
Agreement of Purchase and Sale (Pool XV) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
10.16
Agreement of Purchase and Sale (Pool XVI) among the Partnership, the other entities affiliated or controlled by the Partnership and HTA Acquisition Sub, LLC dated April 29, 2017.*
   
11.1

 Statement Regarding Computation of Earnings.***
   
12.1

 
   
12.2

 
   
31.1

 
   
31.2

 
   
31.3

 
   
31.4

 
   
32.1

 
   
32.2

 
   
32.3

 
   
32.4

 
   
101101.Def

 The following materials fromDefinition Linkbase Document
101.Pre
Presentation Linkbase Document
101.Lab
Labels Linkbase Document
101.Cal
Calculation Linkbase Document
101.Sch
Schema Document
101.Ins
Instance Document - the General Partner's andinstance document does not appear in the Partnership's Quarterly Report on Form 10-Q forInteractive Data File because its XBRL tags are embedded within the quarter ended June 30, 2017 formatted inInline XBRL (eXtensible Business Reporting Language): (i) the Consolidated Balance Sheets, (ii) the Consolidated Statements of Operations and Comprehensive Income, (iii) the Consolidated Statements of Cash Flows, (iv) the Consolidated Statements of Changes in Equity, and (v) the Notes to Consolidated Financial Statements.document

#Represents management contract or compensatory plan or arrangement
  
*Filed herewith.
**The certifications attached as Exhibits 32.1, 32.2, 32.3 and 32.4 accompany this Quarterly Report on Form 10-Q and are "furnished" to the Securities and Exchange Commission pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not be deemed "filed" by the General Partner or the Partnership, respectively, for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.
***Data required by Financial Accounting Standards Board Auditing Standards Codification No. 260 is provided in Note 8 to the Consolidated Financial Statements included in this Report.




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.
 
   
  DUKE REALTY CORPORATION
  
  /s/ James B. Connor
  James B. Connor
  President,Chairman and Chief Executive Officer and Director
  
  /s/ Mark A. Denien
  Mark A. Denien
  Executive Vice President and Chief Financial Officer
  


   
  DUKE REALTY LIMITED PARTNERSHIP
  By: DUKE REALTY CORPORATION, its general partner
  
  /s/ James B. Connor
  James B. Connor
  President,Chairman and Chief Executive Officer and Director of the General Partner
  
  /s/ Mark A. Denien
  Mark A. Denien
  Executive Vice President and Chief Financial Officer of the General Partner
  
   
Date:August 2, 2017May 4, 2018 
   




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