Document and Entity Information
Document and Entity Information - $ / shares | 6 Months Ended | ||
Jun. 30, 2023 | Jul. 20, 2023 | Dec. 31, 2022 | |
Entity Information [Line Items] | |||
Document Type | 10-Q | ||
Document Quarterly Report | true | ||
Document Period End Date | Jun. 30, 2023 | ||
Document Transition Report | false | ||
Entity File Number | 001-13221 | ||
Entity Registrant Name | Cullen/Frost Bankers, Inc. | ||
Entity Incorporation, State or Country Code | TX | ||
Entity Tax Identification Number | 74-1751768 | ||
Entity Address, Address Line One | 111 W. Houston Street, | ||
Entity Address, City or Town | San Antonio, | ||
Entity Address, State or Province | TX | ||
Entity Address, Postal Zip Code | 78205 | ||
City Area Code | (210) | ||
Local Phone Number | 220-4011 | ||
Entity Current Reporting Status | Yes | ||
Entity Interactive Data Current | Yes | ||
Entity Filer Category | Large Accelerated Filer | ||
Entity Small Business | false | ||
Entity Emerging Growth Company | false | ||
Entity Shell Company | false | ||
Entity Common Stock, Shares Outstanding | 64,123,111 | ||
Common stock, par value | $ 0.01 | $ 0.01 | |
Amendment Flag | false | ||
Document Fiscal Year Focus | 2023 | ||
Document Fiscal Period Focus | Q2 | ||
Entity Central Index Key | 0000039263 | ||
Current Fiscal Year End Date | --12-31 | ||
Common Stock [Member] | NEW YORK STOCK EXCHANGE, INC. [Member] | |||
Entity Information [Line Items] | |||
Title of 12(b) Security | Common Stock, $.01 Par Value | ||
Trading Symbol | CFR | ||
Security Exchange Name | NYSE | ||
Series B Preferred Stock [Member] | NEW YORK STOCK EXCHANGE, INC. [Member] | |||
Entity Information [Line Items] | |||
Title of 12(b) Security | Depositary Shares, each representing a 1/40th interest in a share of 4.450% Non-Cumulative Perpetual Preferred Stock, Series B | ||
Trading Symbol | CFR.PrB | ||
Security Exchange Name | NYSE |
Consolidated Balance Sheets
Consolidated Balance Sheets - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Assets: | ||
Cash and due from banks | $ 680,843 | $ 691,553 |
Interest-bearing deposits | 6,329,268 | 11,128,902 |
Federal funds sold | 12,575 | 120,527 |
Resell agreements | 84,650 | 87,150 |
Total cash and cash equivalents | 7,107,336 | 12,028,132 |
Securities held to maturity, net of allowance for credit losses of $267 at June 30, 2023 and $158 at December 31, 2022 | 3,691,220 | 2,639,083 |
Securities available for sale, at estimated fair value | 17,249,257 | 18,243,605 |
Trading account securities | 32,517 | 28,045 |
Loans, net of unearned discounts | 17,746,311 | 17,154,969 |
Less: Allowance for credit losses on loans | (233,619) | (227,621) |
Net loans | 17,512,692 | 16,927,348 |
Premises and equipment, net | 1,154,235 | 1,102,695 |
Goodwill | 654,952 | 654,952 |
Other intangible assets, net | 208 | 386 |
Cash surrender value of life insurance policies | 190,575 | 190,188 |
Accrued interest receivable and other assets | 1,004,208 | 1,077,942 |
Total assets | 48,597,200 | 52,892,376 |
Liabilities: | ||
Non-interest-bearing demand deposits | 14,904,614 | 17,598,234 |
Interest-bearing deposits | 25,796,216 | 26,355,962 |
Total deposits | 40,700,830 | 43,954,196 |
Federal funds purchased | 13,525 | 51,650 |
Repurchase agreements | 3,569,870 | 4,660,641 |
Junior subordinated deferrable interest debentures, net of unamortized issuance costs | 123,098 | 123,069 |
Subordinated notes, net of unamortized issuance costs | 99,413 | 99,335 |
Accrued interest payable and other liabilities | 703,722 | 866,257 |
Total liabilities | 45,210,458 | 49,755,148 |
Shareholders’ Equity: | ||
Preferred stock, par value $0.01 per share; 10,000,000 shares authorized; 150,000 Series B shares ($1,000 liquidation preference) issued at June 30, 2023 and December 31, 2022 | 145,452 | 145,452 |
Common stock, par value $0.01 per share; 210,000,000 shares authorized; 64,404,582 shares issued at June 30, 2023 and 64,354,695 at December 31, 2022 | 644 | 643 |
Additional paid-in capital | 1,040,754 | 1,029,756 |
Retained earnings | 3,532,542 | 3,309,671 |
Accumulated other comprehensive income (loss), net of tax | (1,305,027) | (1,348,294) |
Treasury stock, at cost; 284,206 shares at June 30, 2023 | (27,623) | 0 |
Total shareholders’ equity | 3,386,742 | 3,137,228 |
Total liabilities and shareholders’ equity | $ 48,597,200 | $ 52,892,376 |
Consolidated Balance Sheets (Pa
Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Securities, held-to-maturity, allowance for credit loss | $ 267 | $ 158 |
Common stock, par value | $ 0.01 | $ 0.01 |
Common stock, shares authorized | 210,000,000 | 210,000,000 |
Common stock, shares issued | 64,404,582 | 64,354,695 |
Treasury stock, shares | 284,206 | |
Series B Preferred Stock [Member] | ||
Preferred stock, par value | $ 0.01 | $ 0.01 |
Preferred stock, shares authorized | 10,000,000 | 10,000,000 |
Preferred stock, shares issued | 150,000 | 150,000 |
Preferred stock, liquidation preference value | $ 1,000 | $ 1,000 |
Consolidated Statements of Inco
Consolidated Statements of Income - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Interest income: | ||||
Loans, including fees | $ 290,552 | $ 166,679 | $ 560,267 | $ 316,656 |
Securities: | ||||
Taxable | 101,960 | 56,365 | 199,735 | 99,423 |
Tax-exempt | 60,637 | 57,078 | 127,271 | 113,944 |
Interest-bearing deposits | 87,748 | 26,371 | 186,993 | 32,714 |
Federal funds sold | 305 | 99 | 1,063 | 112 |
Resell agreements | 1,126 | 10 | 2,194 | 14 |
Total interest income | 542,328 | 306,602 | 1,077,523 | 562,863 |
Interest expense: | ||||
Deposits | 120,266 | 14,593 | 218,255 | 19,505 |
Federal funds purchased | 412 | 75 | 995 | 87 |
Repurchase agreements | 33,114 | 1,790 | 66,765 | 2,308 |
Junior subordinated deferrable interest debentures | 2,106 | 772 | 4,094 | 1,356 |
Subordinated notes | 1,164 | 1,164 | 2,328 | 2,328 |
Total interest expense | 157,062 | 18,394 | 292,437 | 25,584 |
Net interest income | 385,266 | 288,208 | 785,086 | 537,279 |
Credit loss expense | 9,901 | 0 | 19,005 | 0 |
Net interest income after credit loss expense | 375,365 | 288,208 | 766,081 | 537,279 |
Non-interest income: | ||||
Trust and investment management fees | 39,392 | 37,776 | 75,536 | 76,432 |
Service charges on deposit accounts | 23,487 | 23,870 | 45,366 | 46,610 |
Insurance commissions and fees | 12,940 | 11,776 | 31,892 | 28,384 |
Interchange and card transaction fees | 5,250 | 4,911 | 10,139 | 9,137 |
Other charges, commissions and fees | 12,090 | 9,887 | 23,794 | 19,514 |
Net gain (loss) on securities transactions | 33 | 0 | 54 | 0 |
Other | 10,336 | 9,707 | 22,012 | 19,240 |
Total non-interest income | 103,528 | 97,927 | 208,793 | 199,317 |
Non-interest expense: | ||||
Salaries and wages | 133,195 | 116,881 | 263,540 | 228,210 |
Employee benefits | 26,792 | 20,733 | 60,714 | 44,953 |
Net occupancy | 31,714 | 28,379 | 62,063 | 55,790 |
Technology, furniture and equipment | 33,043 | 29,921 | 65,524 | 59,078 |
Deposit insurance | 6,202 | 3,724 | 12,447 | 7,357 |
Intangible amortization | 82 | 131 | 178 | 277 |
Other | 54,014 | 46,578 | 105,718 | 89,414 |
Total non-interest expense | 285,042 | 246,347 | 570,184 | 485,079 |
Income before income taxes | 193,851 | 139,788 | 404,690 | 251,517 |
Income taxes | 31,733 | 20,674 | 64,919 | 33,301 |
Net income | 162,118 | 119,114 | 339,771 | 218,216 |
Preferred stock dividends | 1,669 | 1,669 | 3,338 | 3,338 |
Net income available to common shareholders | $ 160,449 | $ 117,445 | $ 336,433 | $ 214,878 |
Earnings per common share: | ||||
Basic | $ 2.47 | $ 1.82 | $ 5.18 | $ 3.32 |
Diluted | $ 2.47 | $ 1.81 | $ 5.17 | $ 3.31 |
Consolidated Statements of Comp
Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Net income | $ 162,118 | $ 119,114 | $ 339,771 | $ 218,216 |
Other comprehensive income (loss), before tax: | ||||
Change in net unrealized gain/loss on securities available for sale during the period | (206,863) | (636,523) | 53,406 | (1,547,318) |
Change in net unrealized gain on securities transferred to held to maturity | (162) | (189) | (322) | (398) |
Reclassification adjustment for net (gains) losses included in net income | (33) | 0 | (54) | 0 |
Total securities available for sale and transferred securities, before tax amount | (207,058) | (636,712) | 53,030 | (1,547,716) |
Defined-benefit post-retirement benefit plans: | ||||
Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit) | 870 | 741 | 1,740 | 1,482 |
Total defined-benefit post-retirement benefit plans | 870 | 741 | 1,740 | 1,482 |
Other comprehensive income (loss), before tax | (206,188) | (635,971) | 54,770 | (1,546,234) |
Deferred tax expense (benefit) | (43,299) | (133,555) | 11,503 | (324,710) |
Other comprehensive income (loss), net of tax | (162,889) | (502,416) | 43,267 | (1,221,524) |
Comprehensive income (loss) | $ (771) | $ (383,302) | $ 383,038 | $ (1,003,308) |
Consolidated Statements of Chan
Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands | Total | Preferred Stock [Member] | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | AOCI Attributable to Parent [Member] | Treasury Stock, Common |
Total shareholders’ equity at beginning of period at Dec. 31, 2021 | $ 4,439,555 | $ 145,452 | $ 642 | $ 1,009,921 | $ 2,956,966 | $ 347,318 | $ (20,744) |
Net income | 218,216 | 218,216 | |||||
Other comprehensive income (loss) | (1,221,524) | (1,221,524) | |||||
Stock option exercises/stock unit conversions (13,626 shares QTD and 64,013 shares YTD in 2023 and 28,832 shares QTD and 144,262 shares YTD in 2022) | 6,490 | (4,777) | 11,267 | ||||
Stock compensation expense recognized in earnings | 5,530 | 5,530 | |||||
Purchase of treasury stock (289,149 shares QTD and 298,332 shares YTD in 2023 and 7,459 shares YTD in 2022) | (996) | (996) | |||||
Cash dividends – preferred stock (approximately $11.13 per share which is equivalent to approximately $0.28 per depository share QTD in 2023 and 2022, respectively and approximately $22.25 per share which is equivalent to approximately $0.56 per depository share YTD in 2023 and 2022, respectively ) | (3,338) | (3,338) | |||||
Cash dividends – common stock ($0.87 per share QTD and $1.74 per share YTD in 2023 and $0.75 per share QTD and $1.50 per share YTD in 2022) | (96,958) | (96,958) | |||||
Total shareholders’ equity at end of period at Jun. 30, 2022 | 3,346,975 | 145,452 | 642 | 1,015,451 | 3,070,109 | (874,206) | (10,473) |
Total shareholders’ equity at beginning of period at Mar. 31, 2022 | 3,776,292 | 145,452 | 642 | 1,012,033 | 3,002,642 | (371,790) | (12,687) |
Net income | 119,114 | 119,114 | |||||
Other comprehensive income (loss) | (502,416) | (502,416) | |||||
Stock option exercises/stock unit conversions (13,626 shares QTD and 64,013 shares YTD in 2023 and 28,832 shares QTD and 144,262 shares YTD in 2022) | 751 | (1,463) | 2,214 | ||||
Stock compensation expense recognized in earnings | 3,418 | 3,418 | |||||
Cash dividends – preferred stock (approximately $11.13 per share which is equivalent to approximately $0.28 per depository share QTD in 2023 and 2022, respectively and approximately $22.25 per share which is equivalent to approximately $0.56 per depository share YTD in 2023 and 2022, respectively ) | (1,669) | (1,669) | |||||
Cash dividends – common stock ($0.87 per share QTD and $1.74 per share YTD in 2023 and $0.75 per share QTD and $1.50 per share YTD in 2022) | (48,515) | (48,515) | |||||
Total shareholders’ equity at end of period at Jun. 30, 2022 | 3,346,975 | 145,452 | 642 | 1,015,451 | 3,070,109 | (874,206) | (10,473) |
Total shareholders’ equity at beginning of period at Dec. 31, 2022 | 3,137,228 | 145,452 | 643 | 1,029,756 | 3,309,671 | (1,348,294) | 0 |
Net income | 339,771 | 339,771 | |||||
Other comprehensive income (loss) | 43,267 | 43,267 | |||||
Stock option exercises/stock unit conversions (13,626 shares QTD and 64,013 shares YTD in 2023 and 28,832 shares QTD and 144,262 shares YTD in 2022) | 2,446 | 1 | 1,463 | (519) | 1,501 | ||
Stock compensation expense recognized in earnings | 9,535 | 9,535 | |||||
Purchase of treasury stock (289,149 shares QTD and 298,332 shares YTD in 2023 and 7,459 shares YTD in 2022) | (29,124) | (29,124) | |||||
Cash dividends – preferred stock (approximately $11.13 per share which is equivalent to approximately $0.28 per depository share QTD in 2023 and 2022, respectively and approximately $22.25 per share which is equivalent to approximately $0.56 per depository share YTD in 2023 and 2022, respectively ) | (3,338) | (3,338) | |||||
Cash dividends – common stock ($0.87 per share QTD and $1.74 per share YTD in 2023 and $0.75 per share QTD and $1.50 per share YTD in 2022) | (113,043) | (113,043) | |||||
Total shareholders’ equity at end of period at Jun. 30, 2023 | 3,386,742 | 145,452 | 644 | 1,040,754 | 3,532,542 | (1,305,027) | (27,623) |
Total shareholders’ equity at beginning of period at Mar. 31, 2023 | 3,467,801 | 145,452 | 644 | 1,035,961 | 3,428,991 | (1,142,138) | (1,109) |
Net income | 162,118 | 162,118 | |||||
Other comprehensive income (loss) | (162,889) | (162,889) | |||||
Stock option exercises/stock unit conversions (13,626 shares QTD and 64,013 shares YTD in 2023 and 28,832 shares QTD and 144,262 shares YTD in 2022) | 946 | (491) | 1,437 | ||||
Stock compensation expense recognized in earnings | 4,793 | 4,793 | |||||
Purchase of treasury stock (289,149 shares QTD and 298,332 shares YTD in 2023 and 7,459 shares YTD in 2022) | (27,951) | (27,951) | |||||
Cash dividends – preferred stock (approximately $11.13 per share which is equivalent to approximately $0.28 per depository share QTD in 2023 and 2022, respectively and approximately $22.25 per share which is equivalent to approximately $0.56 per depository share YTD in 2023 and 2022, respectively ) | (1,669) | (1,669) | |||||
Cash dividends – common stock ($0.87 per share QTD and $1.74 per share YTD in 2023 and $0.75 per share QTD and $1.50 per share YTD in 2022) | (56,407) | (56,407) | |||||
Total shareholders’ equity at end of period at Jun. 30, 2023 | $ 3,386,742 | $ 145,452 | $ 644 | $ 1,040,754 | $ 3,532,542 | $ (1,305,027) | $ (27,623) |
Consolidated Statements of Ch_2
Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Statement of Stockholders' Equity [Abstract] | ||||
Stock option exercise/stock unit conversions (13,626 shares QTD and 64,013 shares YTD in 2023 and 28,832 shares QTD and 144,262 shares YTD during 2022) | 13,626 | 28,832 | 64,013 | 144,262 |
Purchase of treasury stock (289,149 shares QTD and 298,332 shares YTD in 2023 and 7,459 shares YTD in 2022) | 289,149 | 298,332 | 7,459 | |
Cash dividend - preferred stock (Approximately $11.13 per share QTD and $22.25 per share YTD in 2023 and 2022, respectively) | $ 11.13 | $ 11.13 | $ 22.25 | $ 22.25 |
Cash dividend - Preferred Stock Dividends equivalent Per depositary Share Declared ($0.28 QTD and $0.56 YTD during 2023 and 2022) | 0.28 | 0.28 | 0.56 | 0.56 |
Cash dividends - common stock ($0.87 per share QTD and $1.74 per share YTD in 2023 and $0.75 per share QTD and $1.50 per share YTD in 2022) | $ 0.87 | $ 0.75 | $ 1.74 | $ 1.50 |
Consolidated Statements of Cash
Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 6 Months Ended | |
Jun. 30, 2023 | Jun. 30, 2022 | |
Operating Activities: | ||
Net income | $ 339,771 | $ 218,216 |
Adjustments to reconcile net income to net cash from operating activities: | ||
Credit loss expense | 19,005 | 0 |
Deferred tax expense (benefit) | (2,489) | (2,404) |
Accretion of loan discounts | (9,265) | (6,581) |
Securities premium amortization (discount accretion), net | 36,919 | 53,225 |
Net (gain) loss on securities transactions | (54) | 0 |
Depreciation and amortization | 37,076 | 35,406 |
Net (gain) loss on sale/write-down of assets/foreclosed assets | (283) | 103 |
Stock-based compensation | 9,535 | 5,530 |
Net tax benefit from stock-based compensation | 469 | 1,645 |
Earnings on life insurance policies | (1,387) | (1,016) |
Net change in: | ||
Trading account securities | 335 | 482 |
Lease right-of-use assets | 11,193 | 12,042 |
Accrued interest receivable and other assets | 59,051 | (135,239) |
Accrued interest payable and other liabilities | (176,718) | 113,645 |
Net cash from operating activities | 323,158 | 295,054 |
Investing Activities: | ||
Securities held-to-maturity - Purchases | (1,141,443) | (411,527) |
Securities held to maturity: Maturities, calls and principal repayments | 92,547 | 263,226 |
Securities available for sale: | ||
Purchases | (7,607,014) | (4,778,475) |
Sales | 1,543,355 | 0 |
Maturities, calls and principal repayments | 7,077,003 | 382,152 |
Proceeds from sale of loans | 2,215 | 2,365 |
Net change in loans | (602,902) | (404,515) |
Benefits received on life insurance policies | 1,000 | 1,332 |
Proceeds from sales of premises and equipment | 1,179 | 18 |
Purchases of premises and equipment | (85,156) | (28,016) |
Proceeds from sales of repossessed properties | 583 | 1,543 |
Net cash from investing activities | (718,633) | (4,971,897) |
Financing Activities: | ||
Net change in deposits | (3,253,366) | 2,906,069 |
Net change in short-term borrowings | (1,128,896) | (1,058,839) |
Proceeds from stock option exercises | 2,446 | 6,490 |
Purchase of treasury stock | (29,124) | (996) |
Cash dividends paid on preferred stock | (3,338) | (3,338) |
Cash dividends paid on common stock | (113,043) | (96,958) |
Net cash from financing activities | (4,525,321) | 1,752,428 |
Net change in cash and cash equivalents | (4,920,796) | (2,924,415) |
Cash and cash equivalents at beginning of period | 12,028,132 | 16,583,000 |
Cash and cash equivalents at end of period | $ 7,107,336 | $ 13,658,585 |
Significant Accounting Policies
Significant Accounting Policies | 6 Months Ended |
Jun. 30, 2023 | |
Accounting Policies [Abstract] | |
Significant Accounting Policies | Significant Accounting Policies Nature of Operations. Cullen/Frost Bankers, Inc. (“Cullen/Frost”) is a financial holding company and a bank holding company headquartered in San Antonio, Texas that provides, through its subsidiaries, a broad array of products and services throughout numerous Texas markets. The terms “Cullen/Frost,” “the Corporation,” “we,” “us” and “our” mean Cullen/Frost Bankers, Inc. and its subsidiaries, when appropriate. In addition to general commercial and consumer banking, other products and services offered include trust and investment management, insurance, brokerage, mutual funds, leasing, treasury management, capital markets advisory and item processing. Basis of Presentation. The consolidated financial statements in this Quarterly Report on Form 10-Q include the accounts of Cullen/Frost and all other entities in which Cullen/Frost has a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation. The accounting and financial reporting policies we follow conform, in all material respects, to accounting principles generally accepted in the United States and to general practices within the financial services industry. The consolidated financial statements in this Quarterly Report on Form 10-Q have not been audited by an independent registered public accounting firm, but in the opinion of management, reflect all adjustments necessary for a fair presentation of our financial position and results of operations. All such adjustments were of a normal and recurring nature. The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q adopted by the Securities and Exchange Commission (“SEC”). Accordingly, the financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements and should be read in conjunction with our consolidated financial statements, and notes thereto, for the year ended December 31, 2022, included in our Annual Report on Form 10-K filed with the SEC on February 3, 2023 (the “ 2022 Form 10-K ”). Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period. Use of Estimates . The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. The allowance for loan losses and the fair values of financial instruments and the status of contingencies are particularly subject to change. Cash Flow Reporting . Additional cash flow information was as follows: Six Months Ended 2023 2022 Cash paid for interest $ 270,358 $ 22,551 Cash paid for income taxes 66,500 45,500 Significant non-cash transactions: Unsettled securities transactions 10,988 110,623 Right-of-use lease assets obtained in exchange for lessee operating lease liabilities 8,914 8,857 |
Securities
Securities | 6 Months Ended |
Jun. 30, 2023 | |
Investments, Debt and Equity Securities [Abstract] | |
Securities | Securities Securities - Held to Maturity. A summary of the amortized cost, fair value and allowance for credit losses related to securities held to maturity as of June 30, 2023 and December 31, 2022 is presented below. Amortized Gross Gross Estimated Allowance Net June 30, 2023 Residential mortgage-backed securities $ 1,265,818 $ — $ 72,286 $ 1,193,532 $ — $ 1,265,818 States and political subdivisions 2,424,169 24,288 99,491 2,348,966 (267) 2,423,902 Other 1,500 — 69 1,431 — 1,500 Total $ 3,691,487 $ 24,288 $ 171,846 $ 3,543,929 $ (267) $ 3,691,220 December 31, 2022 Residential mortgage-backed securities $ 526,122 $ — $ 65,322 $ 460,800 $ — $ 526,122 States and political subdivisions 2,111,619 13,048 119,033 2,005,634 (158) 2,111,461 Other 1,500 — 69 1,431 — 1,500 Total $ 2,639,241 $ 13,048 $ 184,424 $ 2,467,865 $ (158) $ 2,639,083 All mortgage-backed securities included in the above table were issued by U.S. government agencies and corporations. The carrying value of held-to-maturity securities pledged to secure public funds, trust deposits, repurchase agreements and for other purposes, as required or permitted by law was $943.9 million and $256.3 million at June 30, 2023 and December 31, 2022, respectively. Accrued interest receivable on held-to-maturity securities totaled $39.4 million and $30.2 million at June 30, 2023 and December 31, 2022, respectively and is included in accrued interest receivable and other assets in the accompanying consolidated balance sheets. From time to time, we have reclassified certain securities from available for sale to held to maturity. The net unamortized, unrealized gain remaining on transferred securities included in accumulated other comprehensive income in the accompanying balance sheet totaled $1.5 million ($1.2 million, net of tax) at June 30, 2023 and $1.8 million ($1.4 million, net of tax) at December 31, 2022. This amount will be amortized out of accumulated other comprehensive income over the remaining life of the underlying securities as an adjustment of the yield on those securities. The following table summarizes Moody's and/or Standard & Poor's bond ratings for our portfolio of held-to-maturity securities issued by States and political subdivisions and other securities as of June 30, 2023 and December 31, 2022: States and Political Subdivisions Not Guaranteed or Pre-Refunded Guaranteed by the Texas PSF Guaranteed by Third Party Pre-Refunded Total Other June 30, 2023 Aaa/AAA $ 301,922 $ 1,544,702 $ 13,656 $ 52,860 $ 1,913,140 $ — Aa/AA 504,928 — 6,101 — 511,029 — Not rated — — — — — 1,500 Total $ 806,850 $ 1,544,702 $ 19,757 $ 52,860 $ 2,424,169 $ 1,500 December 31, 2022 Aaa/AAA $ 273,201 $ 1,422,442 $ — $ 121,961 $ 1,817,604 $ — Aa/AA 294,015 — — — 294,015 — Not rated — — — — — 1,500 Total $ 567,216 $ 1,422,442 $ — $ 121,961 $ 2,111,619 $ 1,500 The following table details activity in the allowance for credit losses on held-to-maturity securities during the three and six months ended June 30, 2023 and 2022. Three Months Ended Six Months Ended 2023 2022 2023 2022 Beginning balance $ 262 $ 158 $ 158 $ 158 Credit loss expense (benefit) 5 — 109 — Ending balance $ 267 $ 158 $ 267 $ 158 Securities - Available for Sale. A summary of the amortized cost, fair value and allowance for credit losses related to securities available for sale as of June 30, 2023 and December 31, 2022 is presented below. Amortized Gross Gross Allowance Estimated June 30, 2023 U.S. Treasury $ 5,456,656 $ — $ 383,768 $ — $ 5,072,888 Residential mortgage-backed securities 7,725,403 5,105 937,733 — 6,792,775 States and political subdivisions 5,636,095 1,098 296,177 — 5,341,016 Other 42,578 — — — 42,578 Total $ 18,860,732 $ 6,203 $ 1,617,678 $ — $ 17,249,257 December 31, 2022 U.S. Treasury $ 5,450,546 $ — $ 398,959 $ — $ 5,051,587 Residential mortgage-backed securities 7,316,824 8,050 948,638 — 6,376,236 States and political subdivisions 7,098,635 9,108 334,388 — 6,773,355 Other 42,427 — — — 42,427 Total $ 19,908,432 $ 17,158 $ 1,681,985 $ — $ 18,243,605 All mortgage-backed securities included in the above table were issued by U.S. government agencies and corporations. At June 30, 2023, all of the securities in our available for sale municipal bond portfolio were issued by the State of Texas or political subdivisions or agencies within the State of Texas, of which approximately 74.3% are either guaranteed by the Texas Permanent School Fund (“PSF”) or have been pre-refunded. Securities with limited marketability, such as stock in the Federal Reserve Bank and the Federal Home Loan Bank, are carried at cost and are reported as other available for sale securities in the table above. The carrying value of available-for-sale securities pledged to secure public funds, trust deposits, repurchase agreements and for other purposes, as required or permitted by law was $5.2 billion and $8.0 billion at June 30, 2023 and December 31, 2022, respectively. Accrued interest receivable on available-for-sale securities totaled $121.8 million and $140.6 million at June 30, 2023 and December 31, 2022, respectively, and is included in accrued interest receivable and other assets in the accompanying consolidated balance sheets. The table below summarizes, as of June 30, 2023, securities available for sale in an unrealized loss position for which an allowance for credit losses has not been recorded, aggregated by type of security and length of time in a continuous unrealized loss position. Less than 12 Months More than 12 Months Total Estimated Unrealized Estimated Unrealized Estimated Unrealized U.S. Treasury $ 1,487,790 $ 58,237 $ 3,585,097 $ 325,531 $ 5,072,887 $ 383,768 Residential mortgage-backed securities 2,176,299 65,646 4,239,828 872,087 6,416,127 937,733 States and political subdivisions 3,391,385 45,640 1,543,520 250,537 4,934,905 296,177 Total $ 7,055,474 $ 169,523 $ 9,368,445 $ 1,448,155 $ 16,423,919 $ 1,617,678 As of June 30, 2023, no allowance for credit losses has been recognized on available for sale securities in an unrealized loss position as management does not believe any of the securities are impaired due to reasons of credit quality. This is based upon our analysis of the underlying risk characteristics, including credit ratings, and other qualitative factors related to our available for sale securities and in consideration of our historical credit loss experience and internal forecasts. The issuers of these securities continue to make timely principal and interest payments under the contractual terms of the securities. Furthermore, management does not have the intent to sell any of the securities classified as available for sale in the table above and believes that it is more likely than not that we will not have to sell any such securities before a recovery of cost. The unrealized losses are due to increases in market interest rates over the yields available at the time the underlying securities were purchased. The fair value is expected to recover as the securities approach their maturity date or repricing date or if market yields for such investments decline. Contractual Maturities. The following table summarizes the maturity distribution schedule of securities held to maturity and securities available for sale as of June 30, 2023. Mortgage-backed securities are included in maturity categories based on their stated maturity date. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations. Other securities classified as available for sale include stock in the Federal Reserve Bank and the Federal Home Loan Bank, which have no maturity date. These securities have been included in the total column only. Within 1 Year 1 - 5 Years 5 - 10 Years After 10 Years Total Held To Maturity Amortized Cost Residential mortgage-backed securities $ — $ — $ 513,530 $ 752,288 $ 1,265,818 States and political subdivisions 59,282 14,024 37,558 2,313,305 2,424,169 Other — 1,500 — — 1,500 Total $ 59,282 $ 15,524 $ 551,088 $ 3,065,593 $ 3,691,487 Estimated Fair Value Residential mortgage-backed securities $ — $ — $ 450,850 $ 742,682 $ 1,193,532 States and political subdivisions 59,242 13,949 36,609 2,239,166 2,348,966 Other — 1,431 — — 1,431 Total $ 59,242 $ 15,380 $ 487,459 $ 2,981,848 $ 3,543,929 Available For Sale Amortized Cost U. S. Treasury $ 1,286,197 $ 2,542,538 $ 1,435,692 $ 192,229 $ 5,456,656 Residential mortgage-backed securities 310 4,985 15,986 7,704,122 7,725,403 States and political subdivisions 439,111 317,371 831,502 4,048,111 5,636,095 Other — — — — 42,578 Total $ 1,725,618 $ 2,864,894 $ 2,283,180 $ 11,944,462 $ 18,860,732 Estimated Fair Value U. S. Treasury $ 1,257,329 $ 2,420,131 $ 1,250,420 $ 145,008 $ 5,072,888 Residential mortgage-backed securities 305 4,865 15,898 6,771,707 6,792,775 States and political subdivisions 438,969 315,373 811,631 3,775,043 5,341,016 Other — — — — 42,578 Total $ 1,696,603 $ 2,740,369 $ 2,077,949 $ 10,691,758 $ 17,249,257 Sales of Securities. Sales of available for sale securities were as follows: Three Months Ended Six Months Ended 2023 2022 2023 2022 Proceeds from sales $ 659,082 $ — $ 1,543,355 $ — Gross realized gains 561 — 5,417 — Gross realized losses (528) — (5,363) — Tax (expense) benefit of securities gains/losses (7) — (11) — Premiums and Discounts . Premium amortization and discount accretion included in interest income on securities was as follows: Three Months Ended Six Months Ended 2023 2022 2023 2022 Premium amortization $ (21,242) $ (28,053) $ (47,167) $ (57,113) Discount accretion 4,843 2,482 10,248 3,888 Net (premium amortization) discount accretion $ (16,399) $ (25,571) $ (36,919) $ (53,225) Trading Account Securities. Trading account securities, at estimated fair value, were as follows: June 30, December 31, U.S. Treasury $ 27,546 $ 25,879 States and political subdivisions 4,971 2,166 Total $ 32,517 $ 28,045 Net gains and losses on trading account securities were as follows: Three Months Ended Six Months Ended 2023 2022 2023 2022 Net gain on sales transactions $ 903 $ 1,012 $ 1,871 $ 1,352 Net mark-to-market gains (losses) (10) (76) (27) (244) Net gain (loss) on trading account securities $ 893 $ 936 $ 1,844 $ 1,108 |
Loans
Loans | 6 Months Ended |
Jun. 30, 2023 | |
Receivables [Abstract] | |
Loans | Loans Loans were as follows: June 30, December 31, Commercial and industrial $ 5,726,804 $ 5,674,798 Energy: Production 718,829 696,570 Service 138,816 133,542 Other 128,926 95,617 Total energy 986,571 925,729 Paycheck Protection Program 22,333 34,852 Commercial real estate: Commercial mortgages 6,389,649 6,168,910 Construction 1,468,071 1,477,247 Land 535,247 537,168 Total commercial real estate 8,392,967 8,183,325 Consumer real estate: Home equity lines of credit 730,557 691,841 Home equity loans 575,284 449,507 Home improvement loans 680,811 577,377 Other 171,264 124,814 Total consumer real estate 2,157,916 1,843,539 Total real estate 10,550,883 10,026,864 Consumer and other 459,720 492,726 Total loans $ 17,746,311 $ 17,154,969 Concentrations of Credit. Most of our lending activity occurs within the State of Texas, including the four largest metropolitan areas of Austin, Dallas/Ft. Worth, Houston and San Antonio, as well as other markets. The majority of our loan portfolio consists of commercial and industrial and commercial real estate loans. As of June 30, 2023, there were no concentrations of loans related to any single industry in excess of 10% of total loans. At that date, the largest industry concentrations were related to the automobile dealerships industry, which totaled 6.0% of total loans and the energy industry, which totaled 5.6% of total loans. Unfunded commitments to extend credit and standby letters of credit issued to customers in the automobile dealership industry totaled $454.9 million and $20.1 million, respectively, as of June 30, 2023, while unfunded commitments to extend credit and standby letters of credit issued to customers in the energy industry totaled $1.0 billion and $84.1 million, respectively, as of June 30, 2023. Foreign Loans. We have U.S. dollar denominated loans and commitments to borrowers in Mexico. The outstanding balance of these loans and the unfunded amounts available under these commitments were not significant at June 30, 2023 or December 31, 2022. Related Party Loans . In the ordinary course of business, we have granted loans to certain directors, executive officers and their affiliates (collectively referred to as “related parties”). Such loans totaled $389.2 million at June 30, 2023 and $391.3 million at December 31, 2022. Accrued Interest Receivable. Accrued interest receivable on loans totaled $73.9 million and $68.7 million at June 30, 2023 and December 31, 2022, respectively, and is included in accrued interest receivable and other assets in the accompanying consolidated balance sheets. Non-Accrual and Past Due Loans. Loans are considered past due if the required principal and interest payments have not been received as of the date such payments were due. Loans are placed on non-accrual status when, in management’s opinion, the borrower may be unable to meet payment obligations as they become due, as well as when required by regulatory provisions. Non-accrual loans, segregated by class of loans, were as follows: June 30, 2023 December 31, 2022 Total Non-Accrual Non-Accrual with No Credit Loss Allowance Total Non-Accrual Non-Accrual with No Credit Loss Allowance Commercial and industrial $ 22,217 $ 3,817 $ 18,130 $ 8,514 Energy 16,712 11,880 15,224 7,139 Commercial real estate: Buildings, land and other 25,682 6,617 3,552 1,991 Construction — — — — Consumer real estate 3,170 3,170 927 927 Consumer and other — — — — Total $ 67,781 $ 25,484 $ 37,833 $ 18,571 The following table presents non-accrual loans as of June 30, 2023 by class and year of origination. 2023 2022 2021 2020 2019 Prior Revolving Loans Revolving Loans Converted to Term Total Commercial and industrial $ — $ — $ 221 $ 754 $ 2,957 $ 1,172 $ 16,746 $ 367 $ 22,217 Energy 10,324 — — 59 1,349 2 4,832 146 16,712 Commercial real estate: Buildings, land and other 1,924 8 296 18,328 1,483 3,643 — — 25,682 Construction — — — — — — — — — Consumer real estate — — — 39 2,470 95 — 566 3,170 Consumer and other — — — — — — — — — Total $ 12,248 $ 8 $ 517 $ 19,180 $ 8,259 $ 4,912 $ 21,578 $ 1,079 $ 67,781 In the table above, energy and commercial real estate loans reported as 2023 originations as of June 30, 2023 were first originated in years prior to 2023 but were renewed in the current year. Had non-accrual loans performed in accordance with their original contract terms, we would have recognized additional interest income, net of tax, of approximately $835 thousand and $1.4 million for the three and six months ended June 30, 2023, respectively, and approximately $436 thousand and $843 thousand for the three and six months ended June 30, 2022, respectively. An age analysis of past due loans (including both accruing and non-accruing loans), segregated by class of loans, as of June 30, 2023 was as follows: Loans Loans Total Current Total Accruing Commercial and industrial $ 29,280 $ 5,224 $ 34,504 $ 5,692,300 $ 5,726,804 $ 3,025 Energy 2,224 6,386 8,610 977,961 986,571 — Paycheck Protection Program 80 2,725 2,805 19,528 22,333 2,725 Commercial real estate: Buildings, land and other 28,554 20,022 48,576 6,876,320 6,924,896 568 Construction 669 118 787 1,467,284 1,468,071 118 Consumer real estate 8,843 8,114 16,957 2,140,959 2,157,916 5,039 Consumer and other 5,153 336 5,489 454,231 459,720 336 Total $ 74,803 $ 42,925 $ 117,728 $ 17,628,583 $ 17,746,311 $ 11,811 Modifications to Borrowers Experiencing Financial Difficulty. From time to time, we may modify certain loans to borrowers who are experiencing financial difficulty. In some cases, these modifications may result in new loans. Loan modifications to borrowers experiencing financial difficulty may be in the form of a principal forgiveness, an interest rate reduction, an other-than-insignificant payment delay, or a term extension or a combination thereof, among other things. The period-end balance of loan modifications, segregated by type of modification, to borrowers experiencing financial difficulty during the six months ended June 30, 2023 and June 30, 2022 are set forth in the table below, regardless of whether such modifications resulted in a new loan. There were no commitments to lend additional funds to these borrowers at June 30, 2023. Payment Percent of Combination: Payment Delay and Term Extension Percent of June 30, 2023 Commercial and industrial $ — — % $ 16,020 0.3 % Commercial real estate: Buildings, land and other — — 20,466 0.3 $ — — $ 36,486 0.2 June 30, 2022 Commercial real estate: Buildings, land and other $ 1,116 — — — $ 1,116 — $ — — The financial effects of the loan modifications made to borrowers experiencing financial difficulty were not significant during the six months ended June 30, 2023. The loan modifications reported in the table above did not significantly impact our determination of the allowance for credit losses on loans during the six months ended June 30, 2023. Information as of or for the six months ended June 30, 2023 and June 30, 2022 related to loans modified (by type of modification) in the preceding twelve months, respectively, whereby the borrower was experiencing financial difficulty at the time of modification is set forth in the following table. June 30, 2023 June 30, 2022 Term Payment Combination: Payment Delay and Term Extension Term Payment Combination: Payment Delay and Term Extension Past due in excess of 90 days or on non-accrual status at period-end: Commercial and industrial $ — $ — $ 16,020 $ — $ — $ — Commercial real estate: Buildings, land and other — — 20,466 — 1,116 — $ — $ — $ 36,486 $ — $ 1,116 $ — Charge-offs during the period: Commercial real estate: Buildings, land and other $ — $ — $ — $ — $ 371 $ 352 Proceeds from sales: Commercial real estate: Buildings, land and other $ — $ — $ — $ — $ — $ 1,070 Credit Quality Indicators. As part of the on-going monitoring of the credit quality of our loan portfolio, management tracks certain credit quality indicators including trends related to (i) the weighted-average risk grade of commercial loans, (ii) the level of classified commercial loans, (iii) the delinquency status of consumer loans, (iv) non-performing loans (see details above) and (v) the general economic conditions in the State of Texas. We utilize a risk grading matrix to assign a risk grade to each of our commercial loans. Loans are graded on a scale of 1 to 14. A description of the general characteristics of the 14 risk grades is set forth in our 2022 Form 10-K. We monitor portfolio credit quality by the weighted-average risk grade of each class of commercial loan. Individual relationship managers, under the oversight of credit administration, review updated financial information for all pass grade loans to reassess the risk grade on at least an annual basis. When a loan has a risk grade of 9, it is still considered a pass grade loan; however, it is considered to be on management’s “watch list,” where a significant risk-modifying action is anticipated in the near term. When a loan has a risk grade of 10 or higher, a special assets officer monitors the loan on an on-going basis. The following table presents weighted-average risk grades for all commercial loans, by class and year of origination/renewal, as of June 30, 2023. Paycheck Protection Program (“PPP”) loans are excluded as such loans are fully guaranteed by the Small Business Administration (“SBA”). 2023 2022 2021 2020 2019 Prior Revolving Loans Revolving Loans Converted to Term Total W/A Risk Grade Commercial and industrial Risk grades 1-8 $ 1,113,216 $ 919,731 $ 524,735 $ 406,763 $ 186,103 $ 243,703 $ 2,026,310 $ 48,004 $ 5,468,565 6.29 Risk grade 9 17,610 17,339 32,116 3,745 2,307 10,869 40,715 5,203 129,904 9.00 Risk grade 10 9,988 510 622 396 4,165 744 19,268 564 36,257 10.00 Risk grade 11 4,491 4,164 4,001 8,747 16,121 1,523 19,749 11,065 69,861 11.00 Risk grade 12 — — 221 702 2,687 1,172 14,607 367 19,756 12.00 Risk grade 13 — — — 52 270 — 2,139 — 2,461 13.00 $ 1,145,305 $ 941,744 $ 561,695 $ 420,405 $ 211,653 $ 258,011 $ 2,122,788 $ 65,203 $ 5,726,804 6.46 W/A risk grade 6.31 6.76 7.10 5.93 6.57 6.17 6.31 7.66 6.46 2023 2022 2021 2020 2019 Prior Revolving Loans Revolving Loans Converted to Term Total W/A Risk Grade Energy Risk grades 1-8 $ 301,108 $ 65,831 $ 83,174 $ 4,240 $ 2,393 $ 5,297 $ 457,225 $ 33,858 $ 953,126 5.79 Risk grade 9 311 4,456 139 — 445 589 3,603 1,972 11,515 9.00 Risk grade 10 — — — — 355 189 — — 544 10.00 Risk grade 11 — — 106 170 3,101 12 1,285 — 4,674 11.00 Risk grade 12 10,324 — — 59 1,349 2 2,132 146 14,012 12.00 Risk grade 13 — — — — — — 2,700 — 2,700 13.00 $ 311,743 $ 70,287 $ 83,419 $ 4,469 $ 7,643 $ 6,089 $ 466,945 $ 35,976 $ 986,571 5.96 W/A risk grade 6.32 6.60 5.78 7.68 9.83 7.14 5.58 5.69 5.96 Commercial real estate: Buildings, land, other Risk grades 1-8 $ 699,039 $ 1,735,438 $ 1,421,130 $ 851,503 $ 570,561 $ 1,009,089 $ 150,060 $ 103,188 $ 6,540,008 6.97 Risk grade 9 9,069 15,323 10,729 40,843 70,271 27,324 1,980 1,214 176,753 9.00 Risk grade 10 491 29,583 7,991 4,086 1,754 3,796 — 2,646 50,347 10.00 Risk grade 11 7,653 6,163 48,496 8,477 — 57,948 2,993 376 132,106 11.00 Risk grade 12 1,924 8 296 17,178 1,483 3,493 — — 24,382 12.00 Risk grade 13 — — — 1,150 — 150 — — 1,300 13.00 $ 718,176 $ 1,786,515 $ 1,488,642 $ 923,237 $ 644,069 $ 1,101,800 $ 155,033 $ 107,424 $ 6,924,896 7.14 W/A risk grade 7.10 7.05 7.28 7.22 7.02 7.17 7.13 6.50 7.14 Construction Risk grades 1-8 $ 271,025 $ 523,461 $ 342,339 $ 49,547 $ 945 $ 1,666 $ 179,127 $ — $ 1,368,110 7.19 Risk grade 9 9,975 14,668 3,067 2,100 — — 3,291 — 33,101 9.00 Risk grade 10 18,297 — 7,347 — — — 9,126 — 34,770 10.00 Risk grade 11 — 31,972 118 — — — — — 32,090 11.00 Risk grade 12 — — — — — — — — — 12.00 Risk grade 13 — — — — — — — — — 13.00 $ 299,297 $ 570,101 $ 352,871 $ 51,647 $ 945 $ 1,666 $ 191,544 $ — $ 1,468,071 7.38 W/A risk grade 7.68 7.39 7.39 4.63 7.07 6.77 7.65 — 7.38 Total commercial real estate $ 1,017,473 $ 2,356,616 $ 1,841,513 $ 974,884 $ 645,014 $ 1,103,466 $ 346,577 $ 107,424 $ 8,392,967 7.18 W/A risk grade 7.27 7.13 7.30 7.09 7.02 7.17 7.41 6.50 7.18 In the table above, certain loans are reported as 2023 originations and have risk grades of 11 or higher. These loans were, for the most part, first originated in various years prior to 2023 but were renewed in the current year. The following tables present weighted average risk grades for all commercial loans by class as of December 31, 2022. Refer to our 2022 Form 10-K for details of these loans by year of origination/renewal. Commercial and Industrial Energy Commercial Real Estate - Buildings, Land and Other Commercial Real Estate - Construction Total Commercial Real Estate W/A Risk Grade Loans W/A Risk Grade Loans W/A Risk Grade Loans W/A Risk Grade Loans W/A Risk Grade Loans Risk grades 1-8 6.24 $ 5,435,917 5.44 $ 887,182 6.94 $ 6,340,028 7.04 $ 1,430,012 6.96 $ 7,770,040 Risk grade 9 9.00 146,192 9.00 11,112 9.00 189,928 9.00 34,952 9.00 224,880 Risk grade 10 10.00 37,596 10.00 642 10.00 91,020 10.00 931 10.00 91,951 Risk grade 11 11.00 36,963 11.00 11,569 11.00 81,550 11.00 11,352 11.00 92,902 Risk grade 12 12.00 12,521 12.00 10,840 12.00 2,957 12.00 — 12.00 2,957 Risk grade 13 13.00 5,609 13.00 4,384 13.00 595 13.00 — 13.00 595 Total 6.39 $ 5,674,798 5.67 $ 925,729 7.09 $ 6,706,078 7.12 $ 1,477,247 7.10 $ 8,183,325 Information about the payment status of consumer loans, segregated by portfolio segment and year of origination, as of June 30, 2023 was as follows: 2023 2022 2021 2020 2019 Prior Revolving Loans Revolving Loans Converted to Term Total Consumer real estate: Past due 30-89 days $ 297 $ 1,126 $ 1,075 $ 236 $ 480 $ 1,534 $ 3,861 $ 234 $ 8,843 Past due 90 or more days — 95 172 63 2,539 1,081 523 3,641 8,114 Total past due 297 1,221 1,247 299 3,019 2,615 4,384 3,875 16,957 Current loans 284,398 438,609 300,363 182,845 62,030 150,136 713,920 8,658 2,140,959 Total $ 284,695 $ 439,830 $ 301,610 $ 183,144 $ 65,049 $ 152,751 $ 718,304 $ 12,533 $ 2,157,916 Consumer and other: Past due 30-89 days $ 2,202 $ 316 $ 158 $ 12 $ 42 $ 49 $ 2,226 $ 148 $ 5,153 Past due 90 or more days 84 34 1 — — — 212 5 336 Total past due 2,286 350 159 12 42 49 2,438 153 5,489 Current loans 49,542 39,133 13,771 4,820 1,985 1,900 320,720 22,360 454,231 Total $ 51,828 $ 39,483 $ 13,930 $ 4,832 $ 2,027 $ 1,949 $ 323,158 $ 22,513 $ 459,720 Revolving loans that converted to term during the three and six months ended June 30, 2023 and 2022 were as follows: Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Commercial and industrial $ 3,835 $ 16,518 $ 14,606 $ 21,973 Energy — 247 2,567 247 Commercial real estate: Buildings, land and other 5,944 10,681 5,944 10,726 Construction — 13 — 4,248 Consumer real estate 1,064 888 1,743 1,684 Consumer and other 1,669 1,792 3,671 5,868 Total $ 12,512 $ 30,139 $ 28,531 $ 44,746 In assessing the general economic conditions in the State of Texas, management monitors and tracks the Texas Leading Index (“TLI”), which is produced by the Federal Reserve Bank of Dallas. The TLI, the components of which are more fully described in our 2022 Form 10-K, totaled 127.7 at June 30, 2023 and 130.3 at December 31, 2022. A lower TLI value implies less favorable economic conditions. Allowance For Credit Losses - Loans. The allowance for credit losses on loans is a contra-asset valuation account, calculated in accordance with ASC 326, that is deducted from the amortized cost basis of loans to present the net amount expected to be collected. The amount of the allowance represents management's best estimate of current expected credit losses on loans considering available information, from internal and external sources, relevant to assessing collectibility over the loans' contractual terms, adjusted for expected prepayments when appropriate. Credit loss expense related to loans reflects the totality of actions taken on all loans for a particular period including any necessary increases or decreases in the allowance related to changes in credit loss expectations associated with specific loans or pools of loans. Portions of the allowance may be allocated for specific credits; however, the entire allowance is available for any credit that, in management’s judgment, should be charged off. While management utilizes its best judgment and information available, the ultimate appropriateness of the allowance is dependent upon a variety of factors beyond our control, including the performance of our loan portfolio, the economy, changes in interest rates and the view of the regulatory authorities toward loan classifications. Our allowance methodology is more fully described in our 2022 Form 10-K. During the first quarter of 2023, we recalibrated and updated all of our commercial loan models, with the exception of the models related to commercial real estate - non-owner occupied loans, as well as our consumer real estate loan models. While the fundamental modeling methodologies remain unchanged, the updates included (i) separating the energy loan pool from the commercial and industrial pool as a result of differences in loss characteristics observed in recent history and (ii) changing the modeling approach related to loan renewals whereby each renewal is treated as a separate loan which impacted loan life assumptions. For modeling purposes, our loan pools now include (i) commercial and industrial non-revolving, (ii) commercial and industrial revolving, (iii) energy, (iv) commercial real estate - owner occupied, (v) commercial real estate - non-owner occupied, (vi) commercial real estate - construction/land development, (vii) consumer real estate and (viii) consumer and other. The overall approximate impact of the model updates during the first quarter was a $45.0 million decrease in modeled expected credit losses on loans though the impact of this decrease was largely offset with qualitative adjustments. The decrease in modeled expected credit losses on loans was largely driven by lower measurements for probability of default (“PD”) and loss given default (“LGD”) based on the historical data series (2008 through 2018) used for the recalibration. This period was one of relatively low losses and included higher levels of government stimulus. The lower PD and LGD measurements were also impacted by shorter loan life assumptions due to the aforementioned change in the modeling approach related to loan renewals. The following table presents details of the allowance for credit losses on loans segregated by loan portfolio segment as of June 30, 2023 and December 31, 2022. No allowance for credit losses has been recognized for PPP loans as such loans are fully guaranteed by the SBA. June 30, 2023 Commercial Energy Commercial Consumer Consumer Total Modeled expected credit losses $ 46,435 $ 5,733 $ 15,496 $ 12,594 $ 5,511 $ 85,769 Q-Factor and other qualitative adjustments 26,270 6,496 104,130 441 4,052 141,389 Specific allocations 2,461 2,700 1,300 — — 6,461 Total $ 75,166 $ 14,929 $ 120,926 $ 13,035 $ 9,563 $ 233,619 December 31, 2022 Modeled expected credit losses $ 61,918 $ 8,531 $ 27,013 $ 7,847 $ 4,983 $ 110,292 Q-Factor and other qualitative adjustments 36,237 5,148 61,572 157 2,034 105,148 Specific allocations 6,082 4,383 1,716 — — 12,181 Total $ 104,237 $ 18,062 $ 90,301 $ 8,004 $ 7,017 $ 227,621 The following table details activity in the allowance for credit losses on loans by portfolio segment for the three and six months ended June 30, 2023 and 2022. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories. No allowance for credit losses has been recognized for PPP loans as such loans are fully guaranteed by the SBA. Commercial Energy Commercial Consumer Consumer Total Three months ended: June 30, 2023 Beginning balance $ 78,465 $ 19,191 $ 115,693 $ 9,708 $ 8,457 $ 231,514 Credit loss expense (benefit) 2,404 (4,433) 5,133 3,822 5,007 11,933 Charge-offs (7,136) (518) — (1,080) (7,016) (15,750) Recoveries 1,433 689 100 585 3,115 5,922 Net (charge-offs) recoveries (5,703) 171 100 (495) (3,901) (9,828) Ending balance $ 75,166 $ 14,929 $ 120,926 $ 13,035 $ 9,563 $ 233,619 June 30, 2022 Beginning balance $ 87,026 $ 15,422 $ 128,954 $ 6,359 $ 9,074 $ 246,835 Credit loss expense (benefit) 942 427 (12,232) 583 5,884 (4,396) Charge-offs (1,891) — — (131) (5,322) (7,344) Recoveries 1,193 418 384 43 2,499 4,537 Net (charge-offs) recoveries (698) 418 384 (88) (2,823) (2,807) Ending balance $ 87,270 $ 16,267 $ 117,106 $ 6,854 $ 12,135 $ 239,632 Commercial Energy Commercial Consumer Consumer Total Six months ended: June 30, 2023 Beginning balance $ 104,237 $ 18,062 $ 90,301 $ 8,004 $ 7,017 $ 227,621 Credit loss expense (benefit) (18,280) (3,467) 30,494 5,105 10,756 24,608 Charge-offs (13,316) (518) — (1,330) (13,958) (29,122) Recoveries 2,525 852 131 1,256 5,748 10,512 Net (charge-offs) recoveries (10,791) 334 131 (74) (8,210) (18,610) Ending balance $ 75,166 $ 14,929 $ 120,926 $ 13,035 $ 9,563 $ 233,619 June 30, 2022 Beginning balance $ 72,091 $ 17,217 $ 144,936 $ 6,585 $ 7,837 $ 248,666 Credit loss expense (benefit) 18,503 (1,617) (27,841) 557 10,466 68 Charge-offs (5,346) (371) (702) (362) (11,093) (17,874) Recoveries 2,022 1,038 713 74 4,925 8,772 Net (charge-offs) recoveries (3,324) 667 11 (288) (6,168) (9,102) Ending balance $ 87,270 $ 16,267 $ 117,106 $ 6,854 $ 12,135 $ 239,632 The following table presents year-to-date gross charge-offs by year of origination as of June 30, 2023. 2023 2022 2021 2020 2019 Prior Revolving Loans Revolving Loans Converted to Term Total Commercial and industrial $ 124 $ 208 $ 178 $ 55 $ 25 $ 29 $ 7,427 $ 5,270 $ 13,316 Energy — — — — — — — 518 518 Commercial real estate: Buildings, land and other — — — — — — — — — Construction — — — — — — — — — Consumer real estate — — 280 — — 89 961 — 1,330 Consumer and other 8,143 4,354 57 12 — 23 1,051 318 13,958 Total $ 8,267 $ 4,562 $ 515 $ 67 $ 25 $ 141 $ 9,439 $ 6,106 $ 29,122 In the table above, $8.1 million of the consumer and other loan charge-offs reported as 2023 originations and $4.2 million of the total reported as 2022 originations were related to deposit overdrafts. The following table presents loans that were evaluated for expected credit losses on an individual basis and the related specific allocations, by loan portfolio segment, as of June 30, 2023 and December 31, 2022. June 30, 2023 December 31, 2022 Loan Specific Allocations Loan Specific Allocations Commercial and industrial $ 20,862 $ 2,461 $ 18,980 $ 6,082 Energy 16,445 2,700 15,058 4,383 Paycheck Protection Program — — — — Commercial real estate: Buildings, land and other 24,954 1,300 17,711 1,716 Construction — — — — Consumer real estate 3,030 — 827 — Consumer and other — — — — Total $ 65,291 $ 6,461 $ 52,576 $ 12,181 |
Goodwill and Other Intangible A
Goodwill and Other Intangible Assets | 6 Months Ended |
Jun. 30, 2023 | |
Goodwill and Intangible Assets Disclosure [Abstract] | |
Goodwill and Other Intangible Assets | Goodwill and Other Intangible Assets Goodwill and other intangible assets are presented in the table below. June 30, December 31, Goodwill $ 654,952 $ 654,952 Other intangible assets: Core deposits $ 155 $ 310 Customer relationships 53 76 $ 208 $ 386 The estimated aggregate future amortization expense for intangible assets remaining as of June 30, 2023 is as follows: Remainder of 2023 $ 105 2024 87 2025 11 2026 5 $ 208 |
Deposits
Deposits | 6 Months Ended |
Jun. 30, 2023 | |
Disclosure Text Block [Abstract] | |
Deposits | Deposits Deposits were as follows: June 30, December 31, Non-interest-bearing demand deposits $ 14,904,614 $ 17,598,234 Interest-bearing deposits: Savings and interest checking 10,540,458 12,333,675 Money market accounts 11,026,368 12,227,247 Time accounts 4,229,390 1,795,040 Total interest-bearing deposits 25,796,216 26,355,962 Total deposits $ 40,700,830 $ 43,954,196 The table below presents additional information about our deposits. Public funds in excess of deposit insurance limits are included in the totals for deposits not covered by insurance; however, such deposits are generally fully collateralized by securities. June 30, December 31, Deposits from foreign sources (primarily Mexico) $ 1,036,777 $ 1,048,943 Non-interest-bearing public funds deposits 447,194 788,040 Interest-bearing public funds deposits 696,521 758,761 Total deposits not covered by deposit insurance 20,630,167 23,839,797 Time deposits not covered by deposit insurance 1,670,388 430,128 |
Commitments and Contingencies
Commitments and Contingencies | 6 Months Ended |
Jun. 30, 2023 | |
Commitments and Contingencies Disclosure [Abstract] | |
Commitments Contingencies and Guarantees | Off-Balance-Sheet Arrangements, Commitments, Guarantees and Contingencies Financial Instruments with Off-Balance-Sheet Risk . In the normal course of business, we enter into various transactions, which, in accordance with generally accepted accounting principles are not included in our consolidated balance sheets. We enter into these transactions to meet the financing needs of our customers. As more fully discussed in our 2022 Form 10-K, these transactions include commitments to extend credit and standby letters of credit, which involve, to varying degrees, elements of credit risk and interest rate risk in excess of the amounts recognized in the consolidated balance sheets. We minimize our exposure to loss under these commitments by subjecting them to credit approval and monitoring procedures. Financial instruments with off-balance-sheet risk were as follows: June 30, December 31, Commitments to extend credit $ 12,208,032 $ 12,137,957 Standby letters of credit 405,900 383,851 Deferred standby letter of credit fees 2,176 2,236 Allowance For Credit Losses - Off-Balance-Sheet Credit Exposures. The allowance for credit losses on off-balance-sheet credit exposures is a liability account, calculated in accordance with ASC 326, representing expected credit losses over the contractual period for which we are exposed to credit risk resulting from a contractual obligation to extend credit. No allowance is recognized if we have the unconditional right to cancel the obligation. Off-balance-sheet credit exposures primarily consist of amounts available under outstanding lines of credit and letters of credit detailed in the table above. The amount of the allowance represents management's best estimate of expected credit losses on commitments expected to be funded over the contractual life of the commitment. Our allowance methodology is more fully described in our 2022 Form 10-K. This methodology was also impacted by the model updates during the first quarter of 2023 as described in Note 3 - Loans. The overall approximate impact of the model updates was a $19.0 million decrease in modeled expected credit losses for off-balance-sheet credit exposures, though the impact of this decrease was largely offset with qualitative adjustments. The following table details activity in the allowance for credit losses on off-balance-sheet credit exposures. Three Months Ended Six Months Ended 2023 2022 2023 2022 Beginning balance $ 54,918 $ 45,850 $ 58,593 $ 50,314 Credit loss expense (benefit) (2,037) 4,396 (5,712) (68) Ending balance $ 52,881 $ 50,246 $ 52,881 $ 50,246 Lease Commitments . We lease certain office facilities and office equipment under operating leases. The components of total lease expense were as follows: Three Months Ended Six Months Ended 2023 2022 2023 2022 Amortization of lease right-of-use assets $ 8,747 $ 8,209 $ 17,512 $ 16,314 Short-term lease expense 493 490 902 1,103 Non-lease components (including taxes, insurance, common maintenance, etc.) 3,662 2,748 7,043 5,768 Total $ 12,902 $ 11,447 $ 25,457 $ 23,185 Right-of-use lease assets totaled $286.5 million at June 30, 2023 and $288.8 million at December 31, 2022 and are reported as a component of premises and equipment on our accompanying consolidated balance sheets. The related lease liabilities totaled $320.6 million at June 30, 2023 and $321.9 million at December 31, 2022 and are reported as a component of accrued interest payable and other liabilities in the accompanying consolidated balance sheets. Lease payments under operating leases that were applied to our operating lease liability totaled $8.2 million and $16.6 million during the three and six months ended June 30, 2023, respectively, and $8.4 million and $16.4 million during the three and six months ended June 30, 2022, respectively. There has been no significant change in our expected future minimum lease payments since December 31, 2022. See the 2022 Form 10-K for information regarding these commitments. |
Capital and Regulatory Matters
Capital and Regulatory Matters | 6 Months Ended |
Jun. 30, 2023 | |
Banking Regulation, Common Equity Tier 1 Risk-Based Capital [Abstract] | |
Capital and Regulatory Matters | Capital and Regulatory MattersBanks and bank holding companies are subject to various regulatory capital requirements administered by state and federal banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations, involve quantitative measures of assets, liabilities, and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators about components, risk weighting and other factors. Cullen/Frost’s and Frost Bank’s Common Equity Tier 1 capital (“CET1”) includes common stock and related paid-in capital, net of treasury stock, and retained earnings. In connection with the adoption of the Basel III Capital Rules, we elected to opt-out of the requirement to include most components of accumulated other comprehensive income in CET1. We also elected to exclude the effects of credit loss accounting under CECL from CET1 for a five-year transitional period, as further discussed in our 2022 Form 10-K. This CECL transitional adjustment totaled $30.8 million and $46.2 million at June 30, 2023 and December 31, 2022, respectively. CET1 is reduced by goodwill and other intangible assets, net of associated deferred tax liabilities. Frost Bank's CET1 is also reduced by its equity investment in its financial subsidiary, Frost Insurance Agency (“FIA”). Tier 1 capital includes CET1 and additional Tier 1 capital. For Cullen/Frost, additional Tier 1 capital included $145.5 million of 4.450% non-cumulative perpetual preferred stock at June 30, 2023 and December 31, 2022, the details of which are further discussed below. Frost Bank did not have any additional Tier 1 capital beyond Common Equity Tier 1 at June 30, 2023 or December 31, 2022. Total capital includes Tier 1 capital and Tier 2 capital. Tier 2 capital for both Cullen/Frost and Frost Bank includes a permissible portion of the allowances for credit losses on securities, loans and off-balance-sheet credit exposures. Tier 2 capital for Cullen/Frost also includes the permissible portion of qualified subordinated debt (which decreases 20.0% per year during the final five The following table presents actual and required capital ratios as of June 30, 2023 and December 31, 2022 for Cullen/Frost and Frost Bank under the Basel III Capital Rules. Capital levels required to be considered well-capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules. See the 2022 Form 10-K for a more detailed discussion of the Basel III Capital Rules. Actual Minimum Capital Required Plus Capital Conservation Buffer Required to be Considered Well- Capitalized (1) Capital Ratio Capital Ratio Capital Ratio June 30, 2023 Common Equity Tier 1 to Risk-Weighted Assets Cullen/Frost $ 3,943,110 13.42 % $ 2,056,052 7.00 % N/A N/A Frost Bank 3,973,809 13.55 2,053,467 7.00 $ 1,906,791 6.50 % Tier 1 Capital to Risk-Weighted Assets Cullen/Frost 4,088,562 13.92 2,496,634 8.50 1,762,330 6.00 Frost Bank 3,973,809 13.55 2,493,496 8.50 2,346,820 8.00 Total Capital to Risk-Weighted Assets Cullen/Frost 4,520,634 15.39 3,084,077 10.50 2,937,217 10.00 Frost Bank 4,225,881 14.41 3,080,201 10.50 2,933,525 10.00 Leverage Ratio Cullen/Frost 4,088,562 8.11 2,016,414 4.00 N/A N/A Frost Bank 3,973,809 7.88 2,015,896 4.00 2,519,870 5.00 December 31, 2022 Common Equity Tier 1 to Risk-Weighted Assets Cullen/Frost $ 3,751,200 12.85 % $ 2,042,876 7.00 % N/A N/A Frost Bank 3,789,056 13.00 2,040,388 7.00 $ 1,894,646 6.50 % Tier 1 Capital to Risk-Weighted Assets Cullen/Frost 3,896,652 13.35 2,480,635 8.50 1,751,036 6.00 Frost Bank 3,789,056 13.00 2,477,614 8.50 2,331,872 8.00 Total Capital to Risk-Weighted Assets Cullen/Frost 4,330,982 14.84 3,064,313 10.50 2,918,394 10.00 Frost Bank 4,023,386 13.80 3,060,583 10.50 2,914,841 10.00 Leverage Ratio Cullen/Frost 3,896,652 7.29 2,136,680 4.00 N/A N/A Frost Bank 3,789,056 7.09 2,136,316 4.00 2,670,395 5.00 ____________________ (1) “Well-capitalized” minimum Common Equity Tier 1 to Risk-Weighted Assets and Leverage Ratio are not formally defined under applicable banking regulations for bank holding companies. As of June 30, 2023, capital levels at Cullen/Frost and Frost Bank exceed all capital adequacy requirements under the Basel III Capital Rules. Based on the ratios presented above, capital levels as of June 30, 2023 at Cullen/Frost and Frost Bank exceed the minimum levels necessary to be considered “well-capitalized.” Cullen/Frost and Frost Bank are subject to the regulatory capital requirements administered by the Federal Reserve Board and, for Frost Bank, the Federal Deposit Insurance Corporation (“FDIC”). Regulatory authorities can initiate certain mandatory actions if Cullen/Frost or Frost Bank fail to meet the minimum capital requirements, which could have a direct material effect on our financial statements. Management believes, as of June 30, 2023, that Cullen/Frost and Frost Bank meet all capital adequacy requirements to which they are subject. Preferred Stock. Outstanding preferred stock includes 150,000 shares, or $150.0 million in aggregate liquidation preference, of our 4.450% Non-Cumulative Perpetual Preferred Stock, Series B, par value $0.01 and liquidation preference $1,000 per share (“Series B Preferred Stock”). Each share of Series B Preferred Stock issued and outstanding is represented by 40 depositary shares, each representing a 1/40th ownership interest in a share of the Series B Preferred Stock (equivalent to a liquidation preference of $25 per share). The Series B Preferred Stock qualifies as Tier 1 capital for the purposes of the regulatory capital calculations. The net proceeds from the issuance and sale of the Series B Preferred Stock, after deducting $4.5 million of issuance costs including the underwriting discount and professional service fees, among other things, were approximately $145.5 million. Refer to our 2022 Form 10-K for additional details related to our Series B Preferred Stock. Stock Repurchase Plans. From time to time, our board of directors has authorized stock repurchase plans. In general, stock repurchase plans allow us to proactively manage our capital position and return excess capital to shareholders. Shares purchased under such plans also provide us with shares of common stock necessary to satisfy obligations related to stock compensation awards. On January 25, 2023, our board of directors authorized a $100.0 million stock repurchase program, allowing us to repurchase shares of our common stock over a one Dividend Restrictions . In the ordinary course of business, Cullen/Frost is dependent upon dividends from Frost Bank to provide funds for the payment of dividends to shareholders and to provide for other cash requirements, including to repurchase its common stock. Banking regulations may limit the amount of dividends that may be paid. Approval by regulatory authorities is required if the effect of dividends declared would cause the regulatory capital of Frost Bank to fall below specified minimum levels. Approval is also required if dividends declared exceed the net profits for that year combined with the retained net profits for the preceding two years. Under the foregoing dividend restrictions and while maintaining its “well-capitalized” status, at June 30, 2023, Frost Bank could pay aggregate dividends of up to $967.6 million to Cullen/Frost without prior regulatory approval. Under the terms of the junior subordinated deferrable interest debentures that Cullen/Frost has issued to Cullen/Frost Capital Trust II, Cullen/Frost has the right at any time during the term of the debentures to defer the payment of interest at any time or from time to time for an extension period not exceeding 20 consecutive quarterly periods with respect to each extension period. In the event that we have elected to defer interest on the debentures, we may not, with certain exceptions, declare or pay any dividends or distributions on our capital stock or purchase or acquire any of our capital stock. Under the terms of the Series B Preferred Stock, in the event that we do not declare and pay dividends on the Series B Preferred Stock for the most recent dividend period, we may not, with certain exceptions, declare or pay dividends on, or purchase, redeem or otherwise acquire, shares of our common stock or any of our securities that rank junior to the Series B Preferred Stock. |
Derivative Financial Instrument
Derivative Financial Instruments | 6 Months Ended |
Jun. 30, 2023 | |
Derivative Instruments and Hedging Activities Disclosure [Abstract] | |
Derivative Financial Instruments | Derivative Financial Instruments The fair value of derivative positions outstanding is included in accrued interest receivable and other assets and accrued interest payable and other liabilities in the accompanying consolidated balance sheets and in the net change in each of these financial statement line items in the accompanying consolidated statements of cash flows. Interest Rate Derivatives. We utilize various interest rate swaps, caps and floors, among other things, to mitigate exposure to interest rate risk and to facilitate the needs of our customers. Our objectives for utilizing these derivative instruments are described in our 2022 Form 10-K. The notional amounts and estimated fair values of interest rate derivative contracts are presented in the following table. The fair values of interest rate derivative contracts are estimated utilizing internal valuation methods with observable market data inputs, or as determined by the Chicago Mercantile Exchange (“CME”) for centrally cleared derivative contracts. CME rules legally characterize variation margin payments for centrally cleared derivatives as settlements of the derivatives' exposure rather than collateral. As a result, the variation margin payment and the related derivative instruments are considered a single unit of account for accounting and financial reporting purposes. Variation margin, as determined by the CME, is settled daily. As a result, derivative contracts that clear through the CME have an estimated fair value of zero as of June 30, 2023 and December 31, 2022. June 30, 2023 December 31, 2022 Notional Estimated Notional Estimated Derivatives designated as hedges of fair value: Financial institution counterparties: Loan/lease interest rate swaps – assets $ — $ — $ 1,614 $ 19 Non-hedging interest rate derivatives: Financial institution counterparties: Loan/lease interest rate swaps – assets 1,162,694 78,404 1,165,812 70,416 Loan/lease interest rate swaps – liabilities 72,833 (1,332) 78,798 (1,102) Loan/lease interest rate caps – assets 229,804 14,557 246,442 15,256 Customer counterparties: Loan/lease interest rate swaps – assets 78,789 1,401 53,570 1,102 Loan/lease interest rate swaps – liabilities 1,156,738 (78,402) 1,175,563 (79,175) Loan/lease interest rate caps – liabilities 229,804 (14,557) 246,442 (15,256) The weighted-average rates paid and received for interest rate swaps outstanding at June 30, 2023 were as follows: Weighted-Average Interest Interest Interest rate swaps: Non-hedging interest rate swaps – financial institution counterparties 3.96 % 5.62 % Non-hedging interest rate swaps – customer counterparties 5.62 3.96 The weighted-average strike rate for outstanding interest rate caps was 3.32% at June 30, 2023. Commodity Derivatives. We enter into commodity swaps and option contracts that are not designated as hedging instruments primarily to accommodate the business needs of our customers. Upon the origination of a commodity swap or option contract with a customer, we simultaneously enter into an offsetting contract with a third-party financial institution to mitigate the exposure to fluctuations in commodity prices. The notional amounts and estimated fair values of non-hedging commodity swap and option derivative positions outstanding are presented in the following table. We obtain dealer quotations and use internal valuation methods with observable market data inputs to value our commodity derivative positions. June 30, 2023 December 31, 2022 Notional Notional Estimated Notional Estimated Financial institution counterparties: Oil – assets Barrels 4,134 $ 30,701 4,024 $ 27,082 Oil – liabilities Barrels 5,345 (21,229) 6,068 (53,579) Natural gas – assets MMBTUs 16,694 6,668 16,539 6,220 Natural gas – liabilities MMBTUs 9,871 (6,841) 15,682 (19,138) Customer counterparties: Oil – assets Barrels 5,391 21,580 6,068 54,219 Oil – liabilities Barrels 4,088 (30,255) 4,024 (26,551) Natural gas – assets MMBTUs 9,871 6,865 15,682 19,164 Natural gas – liabilities MMBTUs 16,694 (6,477) 16,539 (6,124) Foreign Currency Derivatives . We enter into foreign currency forward and option contracts that are not designated as hedging instruments primarily to accommodate the business needs of our customers. Upon the origination of a foreign currency denominated transaction with a customer, we simultaneously enter into an offsetting contract with a third-party financial institution to negate the exposure to fluctuations in foreign currency exchange rates. We also utilize foreign currency forward contracts and options that are not designated as hedging instruments to mitigate the economic effect of fluctuations in foreign currency exchange rates on foreign currency holdings and certain short-term, non-U.S. dollar denominated loans. The notional amounts and fair values of open foreign currency forward and option contracts are presented in the following table. June 30, 2023 December 31, 2022 Notional Notional Estimated Notional Estimated Financial institution counterparties: Forward and option contracts – assets EUR — $ — 875 $ 1 Forward and option contracts – liabilities EUR — — 875 (10) Customer counterparties: Forward and option contracts – assets EUR — — 875 10 Forward and option contracts – liabilities EUR — — 875 (1) Gains, Losses and Derivative Cash Flows . For fair value hedges, the changes in the fair value of both the derivative hedging instrument and the hedged item are included in other non-interest income or other non-interest expense. The extent that such changes in fair value do not offset represents hedge ineffectiveness. Net cash flows from interest rate swaps on commercial loans/leases designated as hedging instruments in effective hedges of fair value are included in interest income on loans. For non-hedging derivative instruments, gains and losses due to changes in fair value and all cash flows are included in other non-interest income and other non-interest expense. Amounts included in the consolidated statements of income related to interest rate derivatives designated as hedges of fair value were as follows: Three Months Ended Six Months Ended 2023 2022 2023 2022 Commercial loan/lease interest rate swaps: Amount of gain (loss) included in interest income on loans $ 4 $ (5) $ 16 $ (18) Amount of (gain) loss included in other non-interest expense 4 3 4 5 As stated above, we enter into non-hedge related derivative positions primarily to accommodate the business needs of our customers. Upon the origination of a derivative contract with a customer, we simultaneously enter into an offsetting derivative contract with a third party financial institution. We recognize immediate income based upon the difference in the bid/ask spread of the underlying transactions with our customers and the third party. Because we act only as an intermediary for our customer, subsequent changes in the fair value of the underlying derivative contracts for the most part offset each other and do not significantly impact our results of operations. Amounts included in the consolidated statements of income related to non-hedge related derivative instruments are presented in the table below. Three Months Ended Six Months Ended 2023 2022 2023 2022 Non-hedging interest rate derivatives: Other non-interest income $ 1,002 $ 515 $ 1,712 $ 1,031 Other non-interest expense 1 — — — Non-hedging commodity derivatives: Other non-interest income 503 649 925 1,578 Non-hedging foreign currency derivatives: Other non-interest income — 45 25 63 Counterparty Credit Risk. Our credit exposure relating to interest rate, commodity and foreign currency derivative contracts with bank customers was approximately $6.8 million at June 30, 2023. This credit exposure is partly mitigated as transactions with customers are generally secured by the collateral, if any, securing the underlying transaction being hedged. Our credit exposure, net of collateral pledged, relating to interest rate, commodity and foreign currency derivative contracts with upstream financial institution counterparties was approximately $341 thousand at June 30, 2023. This amount was primarily related to a shortfall of collateral. Collateral positions are generally cleared on the next business day. Collateral levels for upstream financial institution counterparties are monitored and adjusted as necessary. See Note 9 – Balance Sheet Offsetting and |
Balance Sheet Offsetting
Balance Sheet Offsetting | 6 Months Ended |
Jun. 30, 2023 | |
Derivative Instruments and Hedging Activities Disclosure [Abstract] | |
Balance Sheet Offsetting | Balance Sheet Offsetting and Repurchase Agreements Balance Sheet Offsetting. Certain financial instruments, including resell and repurchase agreements and derivatives, may be eligible for offset in the consolidated balance sheet and/or subject to master netting arrangements or similar agreements. Our derivative transactions with upstream financial institution counterparties are generally executed under International Swaps and Derivative Association (“ISDA”) master agreements which include “right of set-off” provisions. In such cases there is generally a legally enforceable right to offset recognized amounts and there may be an intention to settle such amounts on a net basis. Nonetheless, we do not generally offset such financial instruments for financial reporting purposes. Information about financial instruments that are eligible for offset in the consolidated balance sheet as of June 30, 2023 is presented in the following tables. Gross Amount Gross Amount Net Amount June 30, 2023 Financial assets: Derivatives: Interest rate contracts $ 92,961 $ — $ 92,961 Commodity contracts 37,369 — 37,369 Total derivatives 130,330 — 130,330 Resell agreements 84,650 — 84,650 Total $ 214,980 $ — $ 214,980 Financial liabilities: Derivatives: Interest rate contracts $ 1,332 $ — $ 1,332 Commodity contracts 28,070 — 28,070 Total derivatives 29,402 — 29,402 Repurchase agreements 3,569,870 — 3,569,870 Total $ 3,599,272 $ — $ 3,599,272 Gross Amounts Not Offset Net Amount Financial Collateral Net June 30, 2023 Financial assets: Derivatives: Counterparty B $ 32,143 $ (9,548) $ (22,595) $ — Counterparty E 16,312 (896) (15,240) 176 Counterparty F 18,387 (8,839) (9,463) 85 Counterparty G 10,484 — (10,430) 54 Other counterparties 53,004 (10,119) (42,861) 24 Total derivatives 130,330 (29,402) (100,589) 339 Resell agreements 84,650 — (84,650) — Total $ 214,980 $ (29,402) $ (185,239) $ 339 Financial liabilities: Derivatives: Counterparty B $ 9,548 $ (9,548) $ — $ — Counterparty E 896 (896) — — Counterparty F 8,839 (8,839) — — Other counterparties 10,119 (10,119) — — Total derivatives 29,402 (29,402) — — Repurchase agreements 3,569,870 — (3,569,870) — Total $ 3,599,272 $ (29,402) $ (3,569,870) $ — Information about financial instruments that are eligible for offset in the consolidated balance sheet as of December 31, 2022 is presented in the following tables. Gross Amount Gross Amount Net Amount December 31, 2022 Financial assets: Derivatives: Interest rate contracts $ 85,691 $ — $ 85,691 Commodity contracts 33,302 — 33,302 Foreign currency contracts 1 — 1 Total derivatives 118,994 — 118,994 Resell agreements 87,150 — 87,150 Total $ 206,144 $ — $ 206,144 Financial liabilities: Derivatives: Interest rate contracts $ 1,102 $ — $ 1,102 Commodity contracts 72,717 — 72,717 Foreign currency contracts 10 — 10 Total derivatives 73,829 — 73,829 Repurchase agreements 4,660,641 — 4,660,641 Total $ 4,734,470 $ — $ 4,734,470 Gross Amounts Not Offset Net Amount Financial Collateral Net December 31, 2022 Financial assets: Derivatives: Counterparty B $ 39,370 $ (24,500) $ (14,870) $ — Counterparty E 14,430 (47) (14,131) 252 Counterparty F 17,297 (17,297) — — Counterparty G 10,660 — (10,660) — Other counterparties 37,237 (20,684) (16,307) 246 Total derivatives 118,994 (62,528) (55,968) 498 Resell agreements 87,150 — (87,150) — Total $ 206,144 $ (62,528) $ (143,118) $ 498 Financial liabilities: Derivatives: Counterparty B $ 24,500 $ (24,500) $ — $ — Counterparty E 47 (47) — — Counterparty F 27,747 (17,297) (8,479) 1,971 Counterparty G — — — — Other counterparties 21,535 (20,684) (851) — Total derivatives 73,829 (62,528) (9,330) 1,971 Repurchase agreements 4,660,641 — (4,660,641) — Total $ 4,734,470 $ (62,528) $ (4,669,971) $ 1,971 Repurchase Agreements. We utilize securities sold under agreements to repurchase to facilitate the needs of our customers and to facilitate secured short-term funding needs. Securities sold under agreements to repurchase are stated at the amount of cash received in connection with the transaction. We monitor collateral levels on a continuous basis. We may be required to provide additional collateral based on the fair value of the underlying securities. Securities pledged as collateral under repurchase agreements are maintained with our safekeeping agents. The remaining contractual maturity of repurchase agreements in the consolidated balance sheets as of June 30, 2023 and December 31, 2022 is presented in the following tables. Remaining Contractual Maturity of the Agreements Overnight and Continuous Up to 30 Days 30-90 Days Greater than 90 Days Total June 30, 2023 Repurchase agreements: U.S. Treasury $ 2,716,439 $ — $ — $ — $ 2,716,439 Residential mortgage-backed securities 853,431 — — — 853,431 Total borrowings $ 3,569,870 $ — $ — $ — $ 3,569,870 Gross amount of recognized liabilities for repurchase agreements $ 3,569,870 Amounts related to agreements not included in offsetting disclosures above $ — December 31, 2022 Repurchase agreements: U.S. Treasury $ 3,735,061 $ — $ — $ — $ 3,735,061 Residential mortgage-backed securities 925,580 — — — 925,580 Total borrowings $ 4,660,641 $ — $ — $ — $ 4,660,641 Gross amount of recognized liabilities for repurchase agreements $ 4,660,641 Amounts related to agreements not included in offsetting disclosures above $ — |
Stock-Based Compensation
Stock-Based Compensation | 6 Months Ended |
Jun. 30, 2023 | |
Share-Based Payment Arrangement [Abstract] | |
Stock-Based Compensation | Stock-Based Compensation A combined summary of activity in our active stock plans is presented in the table below. Performance stock units outstanding are presented assuming attainment of the maximum payout rate as set forth by the performance criteria. As of June 30, 2023, there were 514,028 shares remaining available for grant for future stock-based compensation awards. Deferred Non-Vested Performance Stock Options Number Weighted- Number Weighted- Number Weighted- Number Weighted- Balance, January 1, 2023 45,661 $ 87.15 465,319 $ 105.36 213,749 $ 96.20 616,227 $ 71.27 Granted 8,503 103.47 2,594 128.42 — — — — Exercised/vested — — (1,957) 91.96 (28,151) 85.74 (33,905) 72.13 Forfeited/expired — — (1,415) 116.02 (18,254) 85.74 — — Balance, June 30, 2023 54,164 89.71 464,541 105.52 167,344 99.10 582,322 71.22 Shares issued in connection with stock compensation awards are issued from available treasury shares. If no treasury shares are available, new shares are issued from available authorized shares. Shares issued in connection with stock compensation awards along with other related information were as follows: Three Months Ended Six Months Ended 2023 2022 2023 2022 New shares issued from available authorized shares — — 49,887 — Shares issued from available treasury stock 13,626 28,832 14,126 144,262 Proceeds from stock option exercises $ 946 $ 751 $ 2,446 $ 6,490 Stock-based compensation expense is recognized ratably over the requisite service period for all awards. For most stock option awards, the service period generally matches the vesting period. For stock options granted to certain executive officers and for non-vested stock units granted to all participants, the service period does not extend past the date the participant reaches 65 years of age. Deferred stock units granted to non-employee directors generally have immediate vesting and the related expense is fully recognized on the date of grant. For performance stock units, the service period generally matches the three-year performance period specified by the award, however, the service period does not extend past the date the participant reaches 65 years of age. Expense recognized each period is dependent upon our estimate of the number of shares that will ultimately be issued. Stock-based compensation expense or benefit and the related income tax benefit is presented in the following table. The service period for performance stock units granted each year begins on January 1 of the following year. Three Months Ended Six Months Ended 2023 2022 2023 2022 Non-vested stock units $ 2,864 $ 2,291 $ 6,171 $ 4,649 Deferred stock units 880 720 880 720 Performance stock units 1,049 407 2,484 161 Total $ 4,793 $ 3,418 $ 9,535 $ 5,530 Income tax benefit $ 800 $ 612 $ 1,868 $ 1,320 Unrecognized stock-based compensation expense at June 30, 2023 is presented in the table below. Unrecognized stock-based compensation expense related to performance stock units is presented assuming attainment of the maximum payout rate as set forth by the performance criteria. Non-vested stock units $ 15,768 Performance stock units 7,029 Total $ 22,797 |
Earnings Per Common Share
Earnings Per Common Share | 6 Months Ended |
Jun. 30, 2023 | |
Earnings Per Share [Abstract] | |
Earnings Per Common Share | Earnings Per Common Share Earnings per common share is computed using the two-class method as more fully described in our 2022 Form 10-K. The following table presents a reconciliation of net income available to common shareholders, net earnings allocated to common stock and the number of shares used in the calculation of basic and diluted earnings per common share. Three Months Ended Six Months Ended 2023 2022 2023 2022 Net income $ 162,118 $ 119,114 $ 339,771 $ 218,216 Less: Preferred stock dividends 1,669 1,669 3,338 3,338 Net income available to common shareholders 160,449 117,445 336,433 214,878 Less: Earnings allocated to participating securities 1,645 1,036 3,468 1,888 Net earnings allocated to common stock $ 158,804 $ 116,409 $ 332,965 $ 212,990 Distributed earnings allocated to common stock $ 55,783 $ 48,092 $ 111,789 $ 96,143 Undistributed earnings allocated to common stock 103,021 68,317 221,176 116,847 Net earnings allocated to common stock $ 158,804 $ 116,409 $ 332,965 $ 212,990 Weighted-average shares outstanding for basic earnings per common share 64,240,789 64,112,828 64,306,809 64,082,185 Dilutive effect of stock compensation 187,172 354,401 225,267 382,395 Weighted-average shares outstanding for diluted earnings per common share 64,427,961 64,467,229 64,532,076 64,464,580 |
Defined Benefit Plans
Defined Benefit Plans | 6 Months Ended |
Jun. 30, 2023 | |
Retirement Benefits [Abstract] | |
Defined Benefit Plans | Defined Benefit Plans The components of the combined net periodic expense (benefit) for our defined benefit pension plans are presented in the table below. Three Months Ended Six Months Ended 2023 2022 2023 2022 Expected return on plan assets, net of expenses $ (2,740) $ (3,492) $ (5,480) $ (6,983) Interest cost on projected benefit obligation 1,746 1,004 3,492 2,008 Net amortization and deferral 870 741 1,740 1,482 Net periodic expense (benefit) $ (124) $ (1,747) $ (248) $ (3,493) Our non-qualified defined benefit pension plan is not funded. No contributions to the qualified defined benefit pension plan were made during the six months ended June 30, 2023. We do not expect to make any contributions to the qualified defined benefit plan during the remainder of 2023. |
Income Taxes
Income Taxes | 6 Months Ended |
Jun. 30, 2023 | |
Income Tax Disclosure [Abstract] | |
Income Taxes | Income Taxes Income tax expense was as follows: Three Months Ended Six Months Ended 2023 2022 2023 2022 Current income tax expense $ 32,413 $ 22,646 $ 67,408 $ 35,705 Deferred income tax expense (benefit) (680) (1,972) (2,489) (2,404) Income tax expense, as reported $ 31,733 $ 20,674 $ 64,919 $ 33,301 Effective tax rate 16.4 % 14.8 % 16.0 % 13.2 % We had a net deferred tax asset totaling $365.4 million at June 30, 2023 and $374.4 million at December 31, 2022. No valuation allowance for deferred tax assets was recorded at June 30, 2023 as management believes it is more likely than not that all of the deferred tax assets will be realized against deferred tax liabilities and projected future taxable income. The effective income tax rates differed from the U.S. statutory federal income tax rates of 21% during the comparable periods primarily due to the effect of tax-exempt income from securities, loans and life insurance policies and the income tax effects associated with stock-based compensation, among other things. There were no unrecognized tax benefits during any of the reported periods. Interest and/or penalties related to income taxes are reported as a component of income tax expense. Such amounts were not significant during the reported periods. We file income tax returns in the U.S. federal jurisdiction. We are no longer subject to U.S. federal income tax examinations by tax authorities for years before 2019. |
Other Comprehensive Income (Los
Other Comprehensive Income (Loss) | 6 Months Ended |
Jun. 30, 2023 | |
Equity [Abstract] | |
Comprehensive Income (Loss) Note | Other Comprehensive Income (Loss) The before and after tax amounts allocated to each component of other comprehensive income (loss) are presented in the following table. Reclassification adjustments related to securities available for sale are included in net gain (loss) on securities transactions in the accompanying consolidated statements of income. Reclassification adjustments related to defined-benefit post-retirement benefit plans are included in the computation of net periodic pension expense (see Note 12 – Defined Benefit Plans). Three Months Ended Three Months Ended Before Tax Tax Expense, Net of Tax Before Tax Tax Expense, Net of Tax Securities available for sale and transferred securities: Change in net unrealized gain/loss during the period $ (206,863) $ (43,441) $ (163,422) $ (636,523) $ (133,670) $ (502,853) Change in net unrealized gain on securities transferred to held to maturity (162) (34) (128) (189) (40) (149) Reclassification adjustment for net (gains) losses included in net income (33) (7) (26) — — — Total securities available for sale and transferred securities (207,058) (43,482) (163,576) (636,712) (133,710) (503,002) Defined-benefit post-retirement benefit plans: Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit) 870 183 687 741 155 586 Total defined-benefit post-retirement benefit plans 870 183 687 741 155 586 Total other comprehensive income (loss) $ (206,188) $ (43,299) $ (162,889) $ (635,971) $ (133,555) $ (502,416) Six Months Ended Six Months Ended Before Tax Tax Expense, Net of Tax Before Tax Tax Expense, Net of Tax Securities available for sale and transferred securities: Change in net unrealized gain/loss during the period $ 53,406 $ 11,215 $ 42,191 $ (1,547,318) $ (324,937) $ (1,222,381) Change in net unrealized gain on securities transferred to held to maturity (322) (67) (255) (398) (84) (314) Reclassification adjustment for net (gains) losses included in net income (54) (11) (43) — — — Total securities available for sale and transferred securities 53,030 11,137 41,893 (1,547,716) (325,021) (1,222,695) Defined-benefit post-retirement benefit plans: Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic expense (benefit) 1,740 366 1,374 1,482 311 1,171 Total defined-benefit post-retirement benefit plans 1,740 366 1,374 1,482 311 1,171 Total other comprehensive income (loss) $ 54,770 $ 11,503 $ 43,267 $ (1,546,234) $ (324,710) $ (1,221,524) Activity in accumulated other comprehensive income (loss), net of tax, was as follows: Securities Defined Accumulated Balance at January 1, 2023 $ (1,313,791) $ (34,503) $ (1,348,294) Other comprehensive income (loss) before reclassifications 41,936 — 41,936 Reclassification of amounts included in net income (43) 1,374 1,331 Net other comprehensive income (loss) during period 41,893 1,374 43,267 Balance at June 30, 2023 $ (1,271,898) $ (33,129) $ (1,305,027) Balance at January 1, 2022 $ 380,209 $ (32,891) $ 347,318 Other comprehensive income (loss) before reclassifications (1,222,695) — (1,222,695) Reclassification of amounts included in net income — 1,171 1,171 Net other comprehensive income (loss) during period (1,222,695) 1,171 (1,221,524) Balance at June 30, 2022 $ (842,486) $ (31,720) $ (874,206) |
Operating Segments
Operating Segments | 6 Months Ended |
Jun. 30, 2023 | |
Segment Reporting [Abstract] | |
Operating Segments | Operating Segments We are managed under a matrix organizational structure whereby our two primary operating segments, Banking and Frost Wealth Advisors, overlap a regional reporting structure. See our 2022 Form 10-K for additional information regarding our operating segments. Summarized operating results by segment were as follows: Banking Frost Wealth Non-Banks Consolidated Three months ended: June 30, 2023 Net interest income (expense) $ 385,720 $ 2,090 $ (2,544) $ 385,266 Credit loss expense 9,901 — — 9,901 Non-interest income 57,808 46,147 (427) 103,528 Non-interest expense 246,927 35,558 2,557 285,042 Income (loss) before income taxes 186,700 12,679 (5,528) 193,851 Income tax expense (benefit) 30,636 2,663 (1,566) 31,733 Net income (loss) 156,064 10,016 (3,962) 162,118 Preferred stock dividends — — 1,669 1,669 Net income (loss) available to common shareholders $ 156,064 $ 10,016 $ (5,631) $ 160,449 Revenues from (expenses to) external customers $ 443,528 $ 48,237 $ (2,971) $ 488,794 June 30, 2022 Net interest income (expense) $ 289,186 $ 958 $ (1,936) $ 288,208 Credit loss expense (benefit) 1 (1) — — Non-interest income 55,397 43,054 (524) 97,927 Non-interest expense 211,044 33,158 2,145 246,347 Income (loss) before income taxes 133,538 10,855 (4,605) 139,788 Income tax expense (benefit) 19,821 2,279 (1,426) 20,674 Net income (loss) 113,717 8,576 (3,179) 119,114 Preferred stock dividends — — 1,669 1,669 Net income (loss) available to common shareholders $ 113,717 $ 8,576 $ (4,848) $ 117,445 Revenues from (expenses to) external customers $ 344,583 $ 44,012 $ (2,460) $ 386,135 Banking Frost Wealth Non-Banks Consolidated Six months ended: June 30, 2023 Net interest income (expense) $ 785,857 $ 3,744 $ (4,515) $ 785,086 Credit loss expense (benefit) 19,003 2 — 19,005 Non-interest income 121,451 88,185 (843) 208,793 Non-interest expense 496,794 69,505 3,885 570,184 Income (loss) before income taxes 391,511 22,422 (9,243) 404,690 Income tax expense (benefit) 62,754 4,709 (2,544) 64,919 Net income (loss) 328,757 17,713 (6,699) 339,771 Preferred stock dividends — — 3,338 3,338 Net income (loss) available to common shareholders $ 328,757 $ 17,713 $ (10,037) $ 336,433 Revenues from (expenses to) external customers $ 907,308 $ 91,929 $ (5,358) $ 993,879 June 30, 2022 Net interest income (expense) $ 539,305 $ 1,658 $ (3,684) $ 537,279 Credit loss expense — — — — Non-interest income 114,103 86,283 (1,069) 199,317 Non-interest expense 417,582 64,068 3,429 485,079 Income (loss) before income taxes 235,826 23,873 (8,182) 251,517 Income tax expense (benefit) 30,835 5,013 (2,547) 33,301 Net income (loss) 204,991 18,860 (5,635) 218,216 Preferred stock dividends — — 3,338 3,338 Net income (loss) available to common shareholders $ 204,991 $ 18,860 $ (8,973) $ 214,878 Revenues from (expenses to) external customers $ 653,408 $ 87,941 $ (4,753) $ 736,596 |
Fair Value Measurements
Fair Value Measurements | 6 Months Ended |
Jun. 30, 2023 | |
Fair Value Disclosures [Abstract] | |
Fair Value Measurements | Fair Value Measurements The fair value of an asset or liability is the price that would be received to sell that asset or paid to transfer that liability in an orderly transaction occurring in the principal market (or most advantageous market in the absence of a principal market) for such asset or liability. In estimating fair value, we utilize valuation techniques that are consistent with the market approach, the income approach and/or the cost approach. Such valuation techniques are consistently applied. Inputs to valuation techniques include the assumptions that market participants would use in pricing an asset or liability. ASC Topic 820 establishes a three-level fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. See our 2022 Form 10-K for additional information regarding the fair value hierarchy and a description of our valuation techniques. Financial Assets and Financial Liabilities. The tables below summarize financial assets and financial liabilities measured at fair value on a recurring basis as of June 30, 2023 and December 31, 2022, segregated by the level of the valuation inputs within the fair value hierarchy of ASC Topic 820 utilized to measure fair value. Level 1 Inputs Level 2 Inputs Level 3 Inputs Total Fair Value June 30, 2023 Securities available for sale: U.S. Treasury $ 5,072,888 $ — $ — $ 5,072,888 Residential mortgage-backed securities — 6,792,775 — 6,792,775 States and political subdivisions — 5,341,016 — 5,341,016 Other — 42,578 — 42,578 Trading account securities: U.S. Treasury 27,546 — — 27,546 States and political subdivisions — 4,971 — 4,971 Derivative assets: Interest rate swaps, caps and floors — 94,362 — 94,362 Commodity swaps and options — 65,814 — 65,814 Derivative liabilities: Interest rate swaps, caps and floors — 94,291 — 94,291 Commodity swaps and options — 64,802 — 64,802 December 31, 2022 Securities available for sale: U.S. Treasury $ 5,051,587 $ — $ — $ 5,051,587 Residential mortgage-backed securities — 6,376,236 — 6,376,236 States and political subdivisions — 6,773,355 — 6,773,355 Other — 42,427 — 42,427 Trading account securities: U.S. Treasury 25,879 — — 25,879 States and political subdivisions — 2,166 — 2,166 Derivative assets: Interest rate swaps, caps and floors — 86,793 — 86,793 Commodity swaps and options — 106,685 — 106,685 Foreign currency forward contracts 11 — — 11 Derivative liabilities: Interest rate swaps, caps and floors — 95,533 — 95,533 Commodity swaps and options — 105,392 — 105,392 Foreign currency forward contracts 11 — — 11 Certain financial assets and financial liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances. Financial assets measured at fair value on a non-recurring basis during the reported periods include certain collateral dependent loans reported at the fair value of the underlying collateral if repayment is expected solely from the collateral. The following table presents collateral dependent loans that were remeasured and reported at fair value through a specific allocation of the allowance for credit losses on loans based upon the fair value of the underlying collateral during the reported periods. Six Months Ended Six Months Ended Level 2 Level 3 Level 2 Level 3 Carrying value before allocations $ 19,064 $ 20,171 $ 5,454 $ 3,614 Specific (allocations) reversals of prior allocations (1,300) (2,100) (1,327) 6,877 Fair value $ 17,764 $ 18,071 $ 4,127 $ 10,491 Non-Financial Assets and Non-Financial Liabilities. We do not have any non-financial assets or non-financial liabilities measured at fair value on a recurring basis. From time to time, non-financial assets measured at fair value on a non-recurring basis may include certain foreclosed assets which, upon initial recognition, were remeasured and reported at fair value through a charge-off to the allowance for loan losses and certain foreclosed assets which, subsequent to their initial recognition, were remeasured at fair value through a write-down included in other non-interest expense. There were no such fair value measurements during the reported periods. Financial Instruments Reported at Amortized Cost. The estimated fair values of financial instruments that are reported at amortized cost in our consolidated balance sheets, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value, were as follows: June 30, 2023 December 31, 2022 Carrying Estimated Carrying Estimated Financial assets: Level 2 inputs: Cash and cash equivalents $ 7,107,336 $ 7,107,336 $ 12,028,132 $ 12,028,132 Securities held to maturity 3,691,220 3,543,929 2,639,083 2,467,865 Cash surrender value of life insurance policies 190,575 190,575 190,188 190,188 Accrued interest receivable 236,967 236,967 243,682 243,682 Level 3 inputs: Loans, net 17,512,692 16,933,702 16,927,348 16,343,417 Financial liabilities: Level 2 inputs: Deposits 40,700,830 40,683,556 43,954,196 43,920,741 Federal funds purchased 13,525 13,525 51,650 51,650 Repurchase agreements 3,569,870 3,569,870 4,660,641 4,660,641 Junior subordinated deferrable interest debentures 123,098 123,712 123,069 123,712 Subordinated notes 99,413 94,571 99,335 97,014 Accrued interest payable 40,523 40,523 18,444 18,444 Under ASC Topic 825, entities may choose to measure eligible financial instruments at fair value at specified election dates. The fair value measurement option (i) may be applied instrument by instrument, with certain exceptions, (ii) is generally irrevocable and (iii) is applied only to entire instruments and not to portions of instruments. Unrealized gains and losses on items for which the fair value measurement option has been elected must be reported in earnings at each subsequent reporting date. During the reported periods, we had no financial instruments measured at fair value under the fair value measurement option. |
Accounting Standards Updates
Accounting Standards Updates | 6 Months Ended |
Jun. 30, 2023 | |
Accounting Changes and Error Corrections [Abstract] | |
Accounting Standards Updates | Accounting Standards Updates Information about certain recently issued accounting standards updates is presented below. Also refer to Note 20 - Accounting Standards Updates in our 2022 Form 10-K for additional information related to previously issued accounting standards updates. ASU 2022-02, “Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures.” ASU 2022-02 eliminates the accounting guidance for troubled debt restructurings in Accounting Standards Codification (“ASC”) Subtopic 310-40, Receivables - Troubled Debt Restructurings by Creditors, while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty. Additionally, ASU 2022-02 requires entities to disclose current-period gross write-offs by year of origination for financing receivables and net investments in leases within the scope of ASC Subtopic 3126-20, Financial Instruments - Credit Losses - Measured at Amortized Cost. ASU 2022-02 became effective for us on January 1, 2023. See Note 3 - Loans for the new financial statement disclosures applicable under this update. ASU 2023-01, “Leases (Topic 842): Common Control Arrangements.” ASU 2023-01 requires entities to amortize leasehold improvements associated with common control leases over the useful life to the common control group. ASU 2023-01 also provides certain practical expedients applicable to private companies and not-for-profit organizations. ASU 2023-01 will be effective for us on January 1, 2024, though early adoption is permitted, and its adoption is not expected to have a significant effect on our financial statements. ASU No. 2023-02, “Investments—Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method.” ASU 2023-02 is intended to improve the accounting and disclosures for investments in tax credit structures. ASU 2023-02 allows entities to elect to account for qualifying tax equity investments using the proportional amortization method, regardless of the program giving rise to the related income tax credits. Previously, this method was only available for qualifying tax equity investments in low-income housing tax credit structures. ASU 2023-02 will be effective for us on January 1, 2024, though early adoption is permitted, and its adoption is not expected to have a significant effect on our financial statements. ASU No. 2023-03, “Presentation of Financial Statements (Topic 205), Income Statement—Reporting Comprehensive Income (Topic 220), Distinguishing Liabilities from Equity (Topic 480), Equity (Topic 505), and Compensation—Stock Compensation (Topic 718): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 120, SEC Staff Announcement at the March 24, 2022 EITF Meeting, and Staff Accounting Bulletin Topic 6.B, Accounting Series Release 280—General Revision of Regulation S-X: Income or Loss Applicable to Common Stock.” ASU 2023-03 amends the ASC for SEC updates pursuant to SEC Staff Accounting Bulletin No. 120; SEC Staff Announcement at the March 24, 2022 Emerging Issues Task Force (“EITF”) Meeting; and Staff Accounting Bulletin Topic 6.B, Accounting Series Release 280 - General Revision of Regulation S-X: Income or Loss Applicable to Common Stock. These updates were immediately effective and did not have a significant impact on our financial statements. |
Significant Accounting Polici_2
Significant Accounting Policies (Policies) | 6 Months Ended |
Jun. 30, 2023 | |
Accounting Policies [Abstract] | |
Nature of Operations | Nature of Operations. Cullen/Frost Bankers, Inc. (“Cullen/Frost”) is a financial holding company and a bank holding company headquartered in San Antonio, Texas that provides, through its subsidiaries, a broad array of products and services throughout numerous Texas markets. The terms “Cullen/Frost,” “the Corporation,” “we,” “us” and “our” mean Cullen/Frost Bankers, Inc. and its subsidiaries, when appropriate. In addition to general commercial and consumer banking, other products and services offered include trust and investment management, insurance, brokerage, mutual funds, leasing, treasury management, capital markets advisory and item processing. |
Basis of Presentation | Basis of Presentation. The consolidated financial statements in this Quarterly Report on Form 10-Q include the accounts of Cullen/Frost and all other entities in which Cullen/Frost has a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation. The accounting and financial reporting policies we follow conform, in all material respects, to accounting principles generally accepted in the United States and to general practices within the financial services industry. The consolidated financial statements in this Quarterly Report on Form 10-Q have not been audited by an independent registered public accounting firm, but in the opinion of management, reflect all adjustments necessary for a fair presentation of our financial position and results of operations. All such adjustments were of a normal and recurring nature. The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q adopted by the Securities and Exchange Commission (“SEC”). Accordingly, the financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements and should be read in conjunction with our consolidated financial statements, and notes thereto, for the year ended December 31, 2022, included in our Annual Report on Form 10-K filed with the SEC on February 3, 2023 (the “ 2022 Form 10-K ”). Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period. |
Use of Estimates | Use of Estimates . The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. The allowance for loan losses and the fair values of financial instruments and the status of contingencies are particularly subject to change. |
Reclassification, Policy [Policy Text Block] | Certain items in prior financial statements have been reclassified to conform to the current presentation. |
Loans Loans - Allowance For Cre
Loans Loans - Allowance For Credit Losses (Policies) | 6 Months Ended |
Jun. 30, 2023 | |
Accounting Policies [Abstract] | |
Financing Receivable, Allowance for Credit Losses, Policy for Uncollectible Amounts | Allowance For Credit Losses - Loans. The allowance for credit losses on loans is a contra-asset valuation account, calculated in accordance with ASC 326, that is deducted from the amortized cost basis of loans to present the net amount expected to be collected. The amount of the allowance represents management's best estimate of current expected credit losses on loans considering available information, from internal and external sources, relevant to assessing collectibility over the loans' contractual terms, adjusted for expected prepayments when appropriate. Credit loss expense related to loans reflects the totality of actions taken on all loans for a particular period including any necessary increases or decreases in the allowance related to changes in credit loss expectations associated with specific loans or pools of loans. Portions of the allowance may be allocated for specific credits; however, the entire allowance is available for any credit that, in management’s judgment, should be charged off. While management utilizes its best judgment and information available, the ultimate appropriateness of the allowance is dependent upon a variety of factors beyond our control, including the performance of our loan portfolio, the economy, changes in interest rates and the view of the regulatory authorities toward loan classifications. Our allowance methodology is more fully described in our 2022 Form 10-K. During the first quarter of 2023, we recalibrated and updated all of our commercial loan models, with the exception of the models related to commercial real estate - non-owner occupied loans, as well as our consumer real estate loan models. While the fundamental modeling methodologies remain unchanged, the updates included (i) separating the energy loan pool from the commercial and industrial pool as a result of differences in loss characteristics observed in recent history and (ii) changing the modeling approach related to loan renewals whereby each renewal is treated as a separate loan which impacted loan life assumptions. For modeling purposes, our loan pools now include (i) commercial and industrial non-revolving, (ii) commercial and industrial revolving, (iii) energy, (iv) commercial real estate - owner occupied, (v) commercial real estate - non-owner occupied, (vi) commercial real estate - construction/land development, (vii) consumer real estate and (viii) consumer and other. The overall approximate impact of the model updates during the first quarter was a $45.0 million decrease in modeled expected |
Significant Accounting Polici_3
Significant Accounting Policies (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Accounting Policies [Abstract] | |
Additional Cash Flow Information | Additional cash flow information was as follows: Six Months Ended 2023 2022 Cash paid for interest $ 270,358 $ 22,551 Cash paid for income taxes 66,500 45,500 Significant non-cash transactions: Unsettled securities transactions 10,988 110,623 Right-of-use lease assets obtained in exchange for lessee operating lease liabilities 8,914 8,857 |
Securities (Tables)
Securities (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Investments, Debt and Equity Securities [Abstract] | |
Debt Securities, Held-to-maturity [Table Text Block] | A summary of the amortized cost, fair value and allowance for credit losses related to securities held to maturity as of June 30, 2023 and December 31, 2022 is presented below. Amortized Gross Gross Estimated Allowance Net June 30, 2023 Residential mortgage-backed securities $ 1,265,818 $ — $ 72,286 $ 1,193,532 $ — $ 1,265,818 States and political subdivisions 2,424,169 24,288 99,491 2,348,966 (267) 2,423,902 Other 1,500 — 69 1,431 — 1,500 Total $ 3,691,487 $ 24,288 $ 171,846 $ 3,543,929 $ (267) $ 3,691,220 December 31, 2022 Residential mortgage-backed securities $ 526,122 $ — $ 65,322 $ 460,800 $ — $ 526,122 States and political subdivisions 2,111,619 13,048 119,033 2,005,634 (158) 2,111,461 Other 1,500 — 69 1,431 — 1,500 Total $ 2,639,241 $ 13,048 $ 184,424 $ 2,467,865 $ (158) $ 2,639,083 |
Moody's and Standard & Poor's Bond Ratings [Table Text Block] | The following table summarizes Moody's and/or Standard & Poor's bond ratings for our portfolio of held-to-maturity securities issued by States and political subdivisions and other securities as of June 30, 2023 and December 31, 2022: States and Political Subdivisions Not Guaranteed or Pre-Refunded Guaranteed by the Texas PSF Guaranteed by Third Party Pre-Refunded Total Other June 30, 2023 Aaa/AAA $ 301,922 $ 1,544,702 $ 13,656 $ 52,860 $ 1,913,140 $ — Aa/AA 504,928 — 6,101 — 511,029 — Not rated — — — — — 1,500 Total $ 806,850 $ 1,544,702 $ 19,757 $ 52,860 $ 2,424,169 $ 1,500 December 31, 2022 Aaa/AAA $ 273,201 $ 1,422,442 $ — $ 121,961 $ 1,817,604 $ — Aa/AA 294,015 — — — 294,015 — Not rated — — — — — 1,500 Total $ 567,216 $ 1,422,442 $ — $ 121,961 $ 2,111,619 $ 1,500 |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Table Text Block] | The following table details activity in the allowance for credit losses on held-to-maturity securities during the three and six months ended June 30, 2023 and 2022. Three Months Ended Six Months Ended 2023 2022 2023 2022 Beginning balance $ 262 $ 158 $ 158 $ 158 Credit loss expense (benefit) 5 — 109 — Ending balance $ 267 $ 158 $ 267 $ 158 |
Amortized Cost, Estimated Fair Value and Allowance for Credit Losses of Securities Available for Sale | A summary of the amortized cost, fair value and allowance for credit losses related to securities available for sale as of June 30, 2023 and December 31, 2022 is presented below. Amortized Gross Gross Allowance Estimated June 30, 2023 U.S. Treasury $ 5,456,656 $ — $ 383,768 $ — $ 5,072,888 Residential mortgage-backed securities 7,725,403 5,105 937,733 — 6,792,775 States and political subdivisions 5,636,095 1,098 296,177 — 5,341,016 Other 42,578 — — — 42,578 Total $ 18,860,732 $ 6,203 $ 1,617,678 $ — $ 17,249,257 December 31, 2022 U.S. Treasury $ 5,450,546 $ — $ 398,959 $ — $ 5,051,587 Residential mortgage-backed securities 7,316,824 8,050 948,638 — 6,376,236 States and political subdivisions 7,098,635 9,108 334,388 — 6,773,355 Other 42,427 — — — 42,427 Total $ 19,908,432 $ 17,158 $ 1,681,985 $ — $ 18,243,605 |
Securities, with Unrealized Losses Segregated by Length of Impairment | The table below summarizes, as of June 30, 2023, securities available for sale in an unrealized loss position for which an allowance for credit losses has not been recorded, aggregated by type of security and length of time in a continuous unrealized loss position. Less than 12 Months More than 12 Months Total Estimated Unrealized Estimated Unrealized Estimated Unrealized U.S. Treasury $ 1,487,790 $ 58,237 $ 3,585,097 $ 325,531 $ 5,072,887 $ 383,768 Residential mortgage-backed securities 2,176,299 65,646 4,239,828 872,087 6,416,127 937,733 States and political subdivisions 3,391,385 45,640 1,543,520 250,537 4,934,905 296,177 Total $ 7,055,474 $ 169,523 $ 9,368,445 $ 1,448,155 $ 16,423,919 $ 1,617,678 |
Amortized Cost and Estimated Fair Value of Securities, Excluding Trading Securities, Presented by Contractual Maturity | The following table summarizes the maturity distribution schedule of securities held to maturity and securities available for sale as of June 30, 2023. Mortgage-backed securities are included in maturity categories based on their stated maturity date. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations. Other securities classified as available for sale include stock in the Federal Reserve Bank and the Federal Home Loan Bank, which have no maturity date. These securities have been included in the total column only. Within 1 Year 1 - 5 Years 5 - 10 Years After 10 Years Total Held To Maturity Amortized Cost Residential mortgage-backed securities $ — $ — $ 513,530 $ 752,288 $ 1,265,818 States and political subdivisions 59,282 14,024 37,558 2,313,305 2,424,169 Other — 1,500 — — 1,500 Total $ 59,282 $ 15,524 $ 551,088 $ 3,065,593 $ 3,691,487 Estimated Fair Value Residential mortgage-backed securities $ — $ — $ 450,850 $ 742,682 $ 1,193,532 States and political subdivisions 59,242 13,949 36,609 2,239,166 2,348,966 Other — 1,431 — — 1,431 Total $ 59,242 $ 15,380 $ 487,459 $ 2,981,848 $ 3,543,929 Available For Sale Amortized Cost U. S. Treasury $ 1,286,197 $ 2,542,538 $ 1,435,692 $ 192,229 $ 5,456,656 Residential mortgage-backed securities 310 4,985 15,986 7,704,122 7,725,403 States and political subdivisions 439,111 317,371 831,502 4,048,111 5,636,095 Other — — — — 42,578 Total $ 1,725,618 $ 2,864,894 $ 2,283,180 $ 11,944,462 $ 18,860,732 Estimated Fair Value U. S. Treasury $ 1,257,329 $ 2,420,131 $ 1,250,420 $ 145,008 $ 5,072,888 Residential mortgage-backed securities 305 4,865 15,898 6,771,707 6,792,775 States and political subdivisions 438,969 315,373 811,631 3,775,043 5,341,016 Other — — — — 42,578 Total $ 1,696,603 $ 2,740,369 $ 2,077,949 $ 10,691,758 $ 17,249,257 |
Schedule of Realized Gain (Loss) | Sales of available for sale securities were as follows: Three Months Ended Six Months Ended 2023 2022 2023 2022 Proceeds from sales $ 659,082 $ — $ 1,543,355 $ — Gross realized gains 561 — 5,417 — Gross realized losses (528) — (5,363) — Tax (expense) benefit of securities gains/losses (7) — (11) — |
Investment Income | Premium amortization and discount accretion included in interest income on securities was as follows: Three Months Ended Six Months Ended 2023 2022 2023 2022 Premium amortization $ (21,242) $ (28,053) $ (47,167) $ (57,113) Discount accretion 4,843 2,482 10,248 3,888 Net (premium amortization) discount accretion $ (16,399) $ (25,571) $ (36,919) $ (53,225) |
Trading Account Securities, at Estimated Fair Value | Trading account securities, at estimated fair value, were as follows: June 30, December 31, U.S. Treasury $ 27,546 $ 25,879 States and political subdivisions 4,971 2,166 Total $ 32,517 $ 28,045 |
Net Gains and Losses on Trading Account Securities | Net gains and losses on trading account securities were as follows: Three Months Ended Six Months Ended 2023 2022 2023 2022 Net gain on sales transactions $ 903 $ 1,012 $ 1,871 $ 1,352 Net mark-to-market gains (losses) (10) (76) (27) (244) Net gain (loss) on trading account securities $ 893 $ 936 $ 1,844 $ 1,108 |
Loans (Tables)
Loans (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Receivables [Abstract] | |
Loans | Loans were as follows: June 30, December 31, Commercial and industrial $ 5,726,804 $ 5,674,798 Energy: Production 718,829 696,570 Service 138,816 133,542 Other 128,926 95,617 Total energy 986,571 925,729 Paycheck Protection Program 22,333 34,852 Commercial real estate: Commercial mortgages 6,389,649 6,168,910 Construction 1,468,071 1,477,247 Land 535,247 537,168 Total commercial real estate 8,392,967 8,183,325 Consumer real estate: Home equity lines of credit 730,557 691,841 Home equity loans 575,284 449,507 Home improvement loans 680,811 577,377 Other 171,264 124,814 Total consumer real estate 2,157,916 1,843,539 Total real estate 10,550,883 10,026,864 Consumer and other 459,720 492,726 Total loans $ 17,746,311 $ 17,154,969 |
Non-Accrual Loans, Segregated by Class of Loans | Non-accrual loans, segregated by class of loans, were as follows: June 30, 2023 December 31, 2022 Total Non-Accrual Non-Accrual with No Credit Loss Allowance Total Non-Accrual Non-Accrual with No Credit Loss Allowance Commercial and industrial $ 22,217 $ 3,817 $ 18,130 $ 8,514 Energy 16,712 11,880 15,224 7,139 Commercial real estate: Buildings, land and other 25,682 6,617 3,552 1,991 Construction — — — — Consumer real estate 3,170 3,170 927 927 Consumer and other — — — — Total $ 67,781 $ 25,484 $ 37,833 $ 18,571 |
Financing Receivable, Non-Accrual Loans, Segregated by Class of Loan and Year of Origination | The following table presents non-accrual loans as of June 30, 2023 by class and year of origination. 2023 2022 2021 2020 2019 Prior Revolving Loans Revolving Loans Converted to Term Total Commercial and industrial $ — $ — $ 221 $ 754 $ 2,957 $ 1,172 $ 16,746 $ 367 $ 22,217 Energy 10,324 — — 59 1,349 2 4,832 146 16,712 Commercial real estate: Buildings, land and other 1,924 8 296 18,328 1,483 3,643 — — 25,682 Construction — — — — — — — — — Consumer real estate — — — 39 2,470 95 — 566 3,170 Consumer and other — — — — — — — — — Total $ 12,248 $ 8 $ 517 $ 19,180 $ 8,259 $ 4,912 $ 21,578 $ 1,079 $ 67,781 |
Age Analysis of Past Due Loans, Segregated by Class of Loans | An age analysis of past due loans (including both accruing and non-accruing loans), segregated by class of loans, as of June 30, 2023 was as follows: Loans Loans Total Current Total Accruing Commercial and industrial $ 29,280 $ 5,224 $ 34,504 $ 5,692,300 $ 5,726,804 $ 3,025 Energy 2,224 6,386 8,610 977,961 986,571 — Paycheck Protection Program 80 2,725 2,805 19,528 22,333 2,725 Commercial real estate: Buildings, land and other 28,554 20,022 48,576 6,876,320 6,924,896 568 Construction 669 118 787 1,467,284 1,468,071 118 Consumer real estate 8,843 8,114 16,957 2,140,959 2,157,916 5,039 Consumer and other 5,153 336 5,489 454,231 459,720 336 Total $ 74,803 $ 42,925 $ 117,728 $ 17,628,583 $ 17,746,311 $ 11,811 |
Troubled debt restructurings | The period-end balance of loan modifications, segregated by type of modification, to borrowers experiencing financial difficulty during the six months ended June 30, 2023 and June 30, 2022 are set forth in the table below, regardless of whether such modifications resulted in a new loan. There were no commitments to lend additional funds to these borrowers at June 30, 2023. Payment Percent of Combination: Payment Delay and Term Extension Percent of June 30, 2023 Commercial and industrial $ — — % $ 16,020 0.3 % Commercial real estate: Buildings, land and other — — 20,466 0.3 $ — — $ 36,486 0.2 June 30, 2022 Commercial real estate: Buildings, land and other $ 1,116 — — — $ 1,116 — $ — — |
Financing Receivables, Modified Loans Past Due in Excess of 90 Days or on Non-Accrual Status, Charge-offs and Proceeds From Sales at Period-End | Information as of or for the six months ended June 30, 2023 and June 30, 2022 related to loans modified (by type of modification) in the preceding twelve months, respectively, whereby the borrower was experiencing financial difficulty at the time of modification is set forth in the following table. June 30, 2023 June 30, 2022 Term Payment Combination: Payment Delay and Term Extension Term Payment Combination: Payment Delay and Term Extension Past due in excess of 90 days or on non-accrual status at period-end: Commercial and industrial $ — $ — $ 16,020 $ — $ — $ — Commercial real estate: Buildings, land and other — — 20,466 — 1,116 — $ — $ — $ 36,486 $ — $ 1,116 $ — Charge-offs during the period: Commercial real estate: Buildings, land and other $ — $ — $ — $ — $ 371 $ 352 Proceeds from sales: Commercial real estate: Buildings, land and other $ — $ — $ — $ — $ — $ 1,070 |
Weighted Average Risk Grades for All Commercial Loans by Class and Year of Origination | The following table presents weighted-average risk grades for all commercial loans, by class and year of origination/renewal, as of June 30, 2023. Paycheck Protection Program (“PPP”) loans are excluded as such loans are fully guaranteed by the Small Business Administration (“SBA”). 2023 2022 2021 2020 2019 Prior Revolving Loans Revolving Loans Converted to Term Total W/A Risk Grade Commercial and industrial Risk grades 1-8 $ 1,113,216 $ 919,731 $ 524,735 $ 406,763 $ 186,103 $ 243,703 $ 2,026,310 $ 48,004 $ 5,468,565 6.29 Risk grade 9 17,610 17,339 32,116 3,745 2,307 10,869 40,715 5,203 129,904 9.00 Risk grade 10 9,988 510 622 396 4,165 744 19,268 564 36,257 10.00 Risk grade 11 4,491 4,164 4,001 8,747 16,121 1,523 19,749 11,065 69,861 11.00 Risk grade 12 — — 221 702 2,687 1,172 14,607 367 19,756 12.00 Risk grade 13 — — — 52 270 — 2,139 — 2,461 13.00 $ 1,145,305 $ 941,744 $ 561,695 $ 420,405 $ 211,653 $ 258,011 $ 2,122,788 $ 65,203 $ 5,726,804 6.46 W/A risk grade 6.31 6.76 7.10 5.93 6.57 6.17 6.31 7.66 6.46 2023 2022 2021 2020 2019 Prior Revolving Loans Revolving Loans Converted to Term Total W/A Risk Grade Energy Risk grades 1-8 $ 301,108 $ 65,831 $ 83,174 $ 4,240 $ 2,393 $ 5,297 $ 457,225 $ 33,858 $ 953,126 5.79 Risk grade 9 311 4,456 139 — 445 589 3,603 1,972 11,515 9.00 Risk grade 10 — — — — 355 189 — — 544 10.00 Risk grade 11 — — 106 170 3,101 12 1,285 — 4,674 11.00 Risk grade 12 10,324 — — 59 1,349 2 2,132 146 14,012 12.00 Risk grade 13 — — — — — — 2,700 — 2,700 13.00 $ 311,743 $ 70,287 $ 83,419 $ 4,469 $ 7,643 $ 6,089 $ 466,945 $ 35,976 $ 986,571 5.96 W/A risk grade 6.32 6.60 5.78 7.68 9.83 7.14 5.58 5.69 5.96 Commercial real estate: Buildings, land, other Risk grades 1-8 $ 699,039 $ 1,735,438 $ 1,421,130 $ 851,503 $ 570,561 $ 1,009,089 $ 150,060 $ 103,188 $ 6,540,008 6.97 Risk grade 9 9,069 15,323 10,729 40,843 70,271 27,324 1,980 1,214 176,753 9.00 Risk grade 10 491 29,583 7,991 4,086 1,754 3,796 — 2,646 50,347 10.00 Risk grade 11 7,653 6,163 48,496 8,477 — 57,948 2,993 376 132,106 11.00 Risk grade 12 1,924 8 296 17,178 1,483 3,493 — — 24,382 12.00 Risk grade 13 — — — 1,150 — 150 — — 1,300 13.00 $ 718,176 $ 1,786,515 $ 1,488,642 $ 923,237 $ 644,069 $ 1,101,800 $ 155,033 $ 107,424 $ 6,924,896 7.14 W/A risk grade 7.10 7.05 7.28 7.22 7.02 7.17 7.13 6.50 7.14 Construction Risk grades 1-8 $ 271,025 $ 523,461 $ 342,339 $ 49,547 $ 945 $ 1,666 $ 179,127 $ — $ 1,368,110 7.19 Risk grade 9 9,975 14,668 3,067 2,100 — — 3,291 — 33,101 9.00 Risk grade 10 18,297 — 7,347 — — — 9,126 — 34,770 10.00 Risk grade 11 — 31,972 118 — — — — — 32,090 11.00 Risk grade 12 — — — — — — — — — 12.00 Risk grade 13 — — — — — — — — — 13.00 $ 299,297 $ 570,101 $ 352,871 $ 51,647 $ 945 $ 1,666 $ 191,544 $ — $ 1,468,071 7.38 W/A risk grade 7.68 7.39 7.39 4.63 7.07 6.77 7.65 — 7.38 Total commercial real estate $ 1,017,473 $ 2,356,616 $ 1,841,513 $ 974,884 $ 645,014 $ 1,103,466 $ 346,577 $ 107,424 $ 8,392,967 7.18 W/A risk grade 7.27 7.13 7.30 7.09 7.02 7.17 7.41 6.50 7.18 |
Weighted Average Risk Grades for All Commercial Loans by Class | The following tables present weighted average risk grades for all commercial loans by class as of December 31, 2022. Refer to our 2022 Form 10-K for details of these loans by year of origination/renewal. Commercial and Industrial Energy Commercial Real Estate - Buildings, Land and Other Commercial Real Estate - Construction Total Commercial Real Estate W/A Risk Grade Loans W/A Risk Grade Loans W/A Risk Grade Loans W/A Risk Grade Loans W/A Risk Grade Loans Risk grades 1-8 6.24 $ 5,435,917 5.44 $ 887,182 6.94 $ 6,340,028 7.04 $ 1,430,012 6.96 $ 7,770,040 Risk grade 9 9.00 146,192 9.00 11,112 9.00 189,928 9.00 34,952 9.00 224,880 Risk grade 10 10.00 37,596 10.00 642 10.00 91,020 10.00 931 10.00 91,951 Risk grade 11 11.00 36,963 11.00 11,569 11.00 81,550 11.00 11,352 11.00 92,902 Risk grade 12 12.00 12,521 12.00 10,840 12.00 2,957 12.00 — 12.00 2,957 Risk grade 13 13.00 5,609 13.00 4,384 13.00 595 13.00 — 13.00 595 Total 6.39 $ 5,674,798 5.67 $ 925,729 7.09 $ 6,706,078 7.12 $ 1,477,247 7.10 $ 8,183,325 |
Age analysis of Past Due Consumer Loans by Class and Year of Origination | Information about the payment status of consumer loans, segregated by portfolio segment and year of origination, as of June 30, 2023 was as follows: 2023 2022 2021 2020 2019 Prior Revolving Loans Revolving Loans Converted to Term Total Consumer real estate: Past due 30-89 days $ 297 $ 1,126 $ 1,075 $ 236 $ 480 $ 1,534 $ 3,861 $ 234 $ 8,843 Past due 90 or more days — 95 172 63 2,539 1,081 523 3,641 8,114 Total past due 297 1,221 1,247 299 3,019 2,615 4,384 3,875 16,957 Current loans 284,398 438,609 300,363 182,845 62,030 150,136 713,920 8,658 2,140,959 Total $ 284,695 $ 439,830 $ 301,610 $ 183,144 $ 65,049 $ 152,751 $ 718,304 $ 12,533 $ 2,157,916 Consumer and other: Past due 30-89 days $ 2,202 $ 316 $ 158 $ 12 $ 42 $ 49 $ 2,226 $ 148 $ 5,153 Past due 90 or more days 84 34 1 — — — 212 5 336 Total past due 2,286 350 159 12 42 49 2,438 153 5,489 Current loans 49,542 39,133 13,771 4,820 1,985 1,900 320,720 22,360 454,231 Total $ 51,828 $ 39,483 $ 13,930 $ 4,832 $ 2,027 $ 1,949 $ 323,158 $ 22,513 $ 459,720 |
Revolving Loans Converted to Term [Table Text Block] | Revolving loans that converted to term during the three and six months ended June 30, 2023 and 2022 were as follows: Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Commercial and industrial $ 3,835 $ 16,518 $ 14,606 $ 21,973 Energy — 247 2,567 247 Commercial real estate: Buildings, land and other 5,944 10,681 5,944 10,726 Construction — 13 — 4,248 Consumer real estate 1,064 888 1,743 1,684 Consumer and other 1,669 1,792 3,671 5,868 Total $ 12,512 $ 30,139 $ 28,531 $ 44,746 |
Financing Receivable, Allowance for Credit Loss By Loan Class Calculated in Accordance With CECL Methodology | The following table presents details of the allowance for credit losses on loans segregated by loan portfolio segment as of June 30, 2023 and December 31, 2022. No allowance for credit losses has been recognized for PPP loans as such loans are fully guaranteed by the SBA. June 30, 2023 Commercial Energy Commercial Consumer Consumer Total Modeled expected credit losses $ 46,435 $ 5,733 $ 15,496 $ 12,594 $ 5,511 $ 85,769 Q-Factor and other qualitative adjustments 26,270 6,496 104,130 441 4,052 141,389 Specific allocations 2,461 2,700 1,300 — — 6,461 Total $ 75,166 $ 14,929 $ 120,926 $ 13,035 $ 9,563 $ 233,619 December 31, 2022 Modeled expected credit losses $ 61,918 $ 8,531 $ 27,013 $ 7,847 $ 4,983 $ 110,292 Q-Factor and other qualitative adjustments 36,237 5,148 61,572 157 2,034 105,148 Specific allocations 6,082 4,383 1,716 — — 12,181 Total $ 104,237 $ 18,062 $ 90,301 $ 8,004 $ 7,017 $ 227,621 |
Activity in Allowance for Loan Losses by Portfolio Segment | The following table details activity in the allowance for credit losses on loans by portfolio segment for the three and six months ended June 30, 2023 and 2022. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories. No allowance for credit losses has been recognized for PPP loans as such loans are fully guaranteed by the SBA. Commercial Energy Commercial Consumer Consumer Total Three months ended: June 30, 2023 Beginning balance $ 78,465 $ 19,191 $ 115,693 $ 9,708 $ 8,457 $ 231,514 Credit loss expense (benefit) 2,404 (4,433) 5,133 3,822 5,007 11,933 Charge-offs (7,136) (518) — (1,080) (7,016) (15,750) Recoveries 1,433 689 100 585 3,115 5,922 Net (charge-offs) recoveries (5,703) 171 100 (495) (3,901) (9,828) Ending balance $ 75,166 $ 14,929 $ 120,926 $ 13,035 $ 9,563 $ 233,619 June 30, 2022 Beginning balance $ 87,026 $ 15,422 $ 128,954 $ 6,359 $ 9,074 $ 246,835 Credit loss expense (benefit) 942 427 (12,232) 583 5,884 (4,396) Charge-offs (1,891) — — (131) (5,322) (7,344) Recoveries 1,193 418 384 43 2,499 4,537 Net (charge-offs) recoveries (698) 418 384 (88) (2,823) (2,807) Ending balance $ 87,270 $ 16,267 $ 117,106 $ 6,854 $ 12,135 $ 239,632 Commercial Energy Commercial Consumer Consumer Total Six months ended: June 30, 2023 Beginning balance $ 104,237 $ 18,062 $ 90,301 $ 8,004 $ 7,017 $ 227,621 Credit loss expense (benefit) (18,280) (3,467) 30,494 5,105 10,756 24,608 Charge-offs (13,316) (518) — (1,330) (13,958) (29,122) Recoveries 2,525 852 131 1,256 5,748 10,512 Net (charge-offs) recoveries (10,791) 334 131 (74) (8,210) (18,610) Ending balance $ 75,166 $ 14,929 $ 120,926 $ 13,035 $ 9,563 $ 233,619 June 30, 2022 Beginning balance $ 72,091 $ 17,217 $ 144,936 $ 6,585 $ 7,837 $ 248,666 Credit loss expense (benefit) 18,503 (1,617) (27,841) 557 10,466 68 Charge-offs (5,346) (371) (702) (362) (11,093) (17,874) Recoveries 2,022 1,038 713 74 4,925 8,772 Net (charge-offs) recoveries (3,324) 667 11 (288) (6,168) (9,102) Ending balance $ 87,270 $ 16,267 $ 117,106 $ 6,854 $ 12,135 $ 239,632 |
Financing Receivable, Gross Charge-Offs By Year of Origination | The following table presents year-to-date gross charge-offs by year of origination as of June 30, 2023. 2023 2022 2021 2020 2019 Prior Revolving Loans Revolving Loans Converted to Term Total Commercial and industrial $ 124 $ 208 $ 178 $ 55 $ 25 $ 29 $ 7,427 $ 5,270 $ 13,316 Energy — — — — — — — 518 518 Commercial real estate: Buildings, land and other — — — — — — — — — Construction — — — — — — — — — Consumer real estate — — 280 — — 89 961 — 1,330 Consumer and other 8,143 4,354 57 12 — 23 1,051 318 13,958 Total $ 8,267 $ 4,562 $ 515 $ 67 $ 25 $ 141 $ 9,439 $ 6,106 $ 29,122 |
Investment in Loans Related to Allowance for Loan Losses by Portfolio Segment Disaggregated Based on Impairment Methodology | The following table presents loans that were evaluated for expected credit losses on an individual basis and the related specific allocations, by loan portfolio segment, as of June 30, 2023 and December 31, 2022. June 30, 2023 December 31, 2022 Loan Specific Allocations Loan Specific Allocations Commercial and industrial $ 20,862 $ 2,461 $ 18,980 $ 6,082 Energy 16,445 2,700 15,058 4,383 Paycheck Protection Program — — — — Commercial real estate: Buildings, land and other 24,954 1,300 17,711 1,716 Construction — — — — Consumer real estate 3,030 — 827 — Consumer and other — — — — Total $ 65,291 $ 6,461 $ 52,576 $ 12,181 |
Goodwill and Other Intangible_2
Goodwill and Other Intangible Assets (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Goodwill and Intangible Assets Disclosure [Abstract] | |
Schedule of Intangible Assets and Goodwill | Goodwill and other intangible assets are presented in the table below. June 30, December 31, Goodwill $ 654,952 $ 654,952 Other intangible assets: Core deposits $ 155 $ 310 Customer relationships 53 76 $ 208 $ 386 |
Estimated Aggregate Future Amortization Expense for Intangible Assets | The estimated aggregate future amortization expense for intangible assets remaining as of June 30, 2023 is as follows: Remainder of 2023 $ 105 2024 87 2025 11 2026 5 $ 208 |
Deposits (Tables)
Deposits (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Disclosure Text Block [Abstract] | |
Deposit Liabilities, Type | Deposits were as follows: June 30, December 31, Non-interest-bearing demand deposits $ 14,904,614 $ 17,598,234 Interest-bearing deposits: Savings and interest checking 10,540,458 12,333,675 Money market accounts 11,026,368 12,227,247 Time accounts 4,229,390 1,795,040 Total interest-bearing deposits 25,796,216 26,355,962 Total deposits $ 40,700,830 $ 43,954,196 |
Additional Information About Corporation's Deposits | The table below presents additional information about our deposits. Public funds in excess of deposit insurance limits are included in the totals for deposits not covered by insurance; however, such deposits are generally fully collateralized by securities. June 30, December 31, Deposits from foreign sources (primarily Mexico) $ 1,036,777 $ 1,048,943 Non-interest-bearing public funds deposits 447,194 788,040 Interest-bearing public funds deposits 696,521 758,761 Total deposits not covered by deposit insurance 20,630,167 23,839,797 Time deposits not covered by deposit insurance 1,670,388 430,128 |
Commitments and Contingencies (
Commitments and Contingencies (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Commitments and Contingencies Disclosure [Abstract] | |
Financial Instruments with Off-Balance-Sheet Risk | Financial instruments with off-balance-sheet risk were as follows: June 30, December 31, Commitments to extend credit $ 12,208,032 $ 12,137,957 Standby letters of credit 405,900 383,851 Deferred standby letter of credit fees 2,176 2,236 |
Commitments, Off-Balance-Sheet, Allowance for Credit Losses [Table Text Block] | The following table details activity in the allowance for credit losses on off-balance-sheet credit exposures. Three Months Ended Six Months Ended 2023 2022 2023 2022 Beginning balance $ 54,918 $ 45,850 $ 58,593 $ 50,314 Credit loss expense (benefit) (2,037) 4,396 (5,712) (68) Ending balance $ 52,881 $ 50,246 $ 52,881 $ 50,246 |
Lease Commitments, Components of Lease Expense [Table Text Block] | We lease certain office facilities and office equipment under operating leases. The components of total lease expense were as follows: Three Months Ended Six Months Ended 2023 2022 2023 2022 Amortization of lease right-of-use assets $ 8,747 $ 8,209 $ 17,512 $ 16,314 Short-term lease expense 493 490 902 1,103 Non-lease components (including taxes, insurance, common maintenance, etc.) 3,662 2,748 7,043 5,768 Total $ 12,902 $ 11,447 $ 25,457 $ 23,185 |
Capital and Regulatory Matters
Capital and Regulatory Matters (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Banking Regulation, Common Equity Tier 1 Risk-Based Capital [Abstract] | |
Actual and Required Capital Ratios | The following table presents actual and required capital ratios as of June 30, 2023 and December 31, 2022 for Cullen/Frost and Frost Bank under the Basel III Capital Rules. Capital levels required to be considered well-capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules. See the 2022 Form 10-K for a more detailed discussion of the Basel III Capital Rules. Actual Minimum Capital Required Plus Capital Conservation Buffer Required to be Considered Well- Capitalized (1) Capital Ratio Capital Ratio Capital Ratio June 30, 2023 Common Equity Tier 1 to Risk-Weighted Assets Cullen/Frost $ 3,943,110 13.42 % $ 2,056,052 7.00 % N/A N/A Frost Bank 3,973,809 13.55 2,053,467 7.00 $ 1,906,791 6.50 % Tier 1 Capital to Risk-Weighted Assets Cullen/Frost 4,088,562 13.92 2,496,634 8.50 1,762,330 6.00 Frost Bank 3,973,809 13.55 2,493,496 8.50 2,346,820 8.00 Total Capital to Risk-Weighted Assets Cullen/Frost 4,520,634 15.39 3,084,077 10.50 2,937,217 10.00 Frost Bank 4,225,881 14.41 3,080,201 10.50 2,933,525 10.00 Leverage Ratio Cullen/Frost 4,088,562 8.11 2,016,414 4.00 N/A N/A Frost Bank 3,973,809 7.88 2,015,896 4.00 2,519,870 5.00 December 31, 2022 Common Equity Tier 1 to Risk-Weighted Assets Cullen/Frost $ 3,751,200 12.85 % $ 2,042,876 7.00 % N/A N/A Frost Bank 3,789,056 13.00 2,040,388 7.00 $ 1,894,646 6.50 % Tier 1 Capital to Risk-Weighted Assets Cullen/Frost 3,896,652 13.35 2,480,635 8.50 1,751,036 6.00 Frost Bank 3,789,056 13.00 2,477,614 8.50 2,331,872 8.00 Total Capital to Risk-Weighted Assets Cullen/Frost 4,330,982 14.84 3,064,313 10.50 2,918,394 10.00 Frost Bank 4,023,386 13.80 3,060,583 10.50 2,914,841 10.00 Leverage Ratio Cullen/Frost 3,896,652 7.29 2,136,680 4.00 N/A N/A Frost Bank 3,789,056 7.09 2,136,316 4.00 2,670,395 5.00 ____________________ (1) “Well-capitalized” minimum Common Equity Tier 1 to Risk-Weighted Assets and Leverage Ratio are not formally defined under applicable banking regulations for bank holding companies. |
Derivative Financial Instrume_2
Derivative Financial Instruments (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Derivative Instruments and Hedging Activities Disclosure [Abstract] | |
Schedule of Notional Amounts and Estimated Fair Values of Interest Rate Derivative Contracts Outstanding | The notional amounts and estimated fair values of interest rate derivative contracts are presented in the following table. The fair values of interest rate derivative contracts are estimated utilizing internal valuation methods with observable market data inputs, or as determined by the Chicago Mercantile Exchange (“CME”) for centrally cleared derivative contracts. CME rules legally characterize variation margin payments for centrally cleared derivatives as settlements of the derivatives' exposure rather than collateral. As a result, the variation margin payment and the related derivative instruments are considered a single unit of account for accounting and financial reporting purposes. Variation margin, as determined by the CME, is settled daily. As a result, derivative contracts that clear through the CME have an estimated fair value of zero as of June 30, 2023 and December 31, 2022. June 30, 2023 December 31, 2022 Notional Estimated Notional Estimated Derivatives designated as hedges of fair value: Financial institution counterparties: Loan/lease interest rate swaps – assets $ — $ — $ 1,614 $ 19 Non-hedging interest rate derivatives: Financial institution counterparties: Loan/lease interest rate swaps – assets 1,162,694 78,404 1,165,812 70,416 Loan/lease interest rate swaps – liabilities 72,833 (1,332) 78,798 (1,102) Loan/lease interest rate caps – assets 229,804 14,557 246,442 15,256 Customer counterparties: Loan/lease interest rate swaps – assets 78,789 1,401 53,570 1,102 Loan/lease interest rate swaps – liabilities 1,156,738 (78,402) 1,175,563 (79,175) Loan/lease interest rate caps – liabilities 229,804 (14,557) 246,442 (15,256) |
Schedule of Weighted-Average Rates Paid and Received for Interest Rate Swaps Outstanding | The weighted-average rates paid and received for interest rate swaps outstanding at June 30, 2023 were as follows: Weighted-Average Interest Interest Interest rate swaps: Non-hedging interest rate swaps – financial institution counterparties 3.96 % 5.62 % Non-hedging interest rate swaps – customer counterparties 5.62 3.96 |
Schedule of Notional Amounts and Estimated Fair Values of Commodity Derivative Positions | The notional amounts and estimated fair values of non-hedging commodity swap and option derivative positions outstanding are presented in the following table. We obtain dealer quotations and use internal valuation methods with observable market data inputs to value our commodity derivative positions. June 30, 2023 December 31, 2022 Notional Notional Estimated Notional Estimated Financial institution counterparties: Oil – assets Barrels 4,134 $ 30,701 4,024 $ 27,082 Oil – liabilities Barrels 5,345 (21,229) 6,068 (53,579) Natural gas – assets MMBTUs 16,694 6,668 16,539 6,220 Natural gas – liabilities MMBTUs 9,871 (6,841) 15,682 (19,138) Customer counterparties: Oil – assets Barrels 5,391 21,580 6,068 54,219 Oil – liabilities Barrels 4,088 (30,255) 4,024 (26,551) Natural gas – assets MMBTUs 9,871 6,865 15,682 19,164 Natural gas – liabilities MMBTUs 16,694 (6,477) 16,539 (6,124) |
Schedule of Foreign Exchange Contracts, Statement of Financial Position | The notional amounts and fair values of open foreign currency forward and option contracts are presented in the following table. June 30, 2023 December 31, 2022 Notional Notional Estimated Notional Estimated Financial institution counterparties: Forward and option contracts – assets EUR — $ — 875 $ 1 Forward and option contracts – liabilities EUR — — 875 (10) Customer counterparties: Forward and option contracts – assets EUR — — 875 10 Forward and option contracts – liabilities EUR — — 875 (1) |
Schedule of Amounts Related to Interest Rate Derivatives Designated as Hedges of Fair Value | Amounts included in the consolidated statements of income related to interest rate derivatives designated as hedges of fair value were as follows: Three Months Ended Six Months Ended 2023 2022 2023 2022 Commercial loan/lease interest rate swaps: Amount of gain (loss) included in interest income on loans $ 4 $ (5) $ 16 $ (18) Amount of (gain) loss included in other non-interest expense 4 3 4 5 |
Schedule of Amounts Related to Non-Hedging Interest Rate and Commodity Derivatives | Amounts included in the consolidated statements of income related to non-hedge related derivative instruments are presented in the table below. Three Months Ended Six Months Ended 2023 2022 2023 2022 Non-hedging interest rate derivatives: Other non-interest income $ 1,002 $ 515 $ 1,712 $ 1,031 Other non-interest expense 1 — — — Non-hedging commodity derivatives: Other non-interest income 503 649 925 1,578 Non-hedging foreign currency derivatives: Other non-interest income — 45 25 63 |
Balance Sheet Offsetting (Table
Balance Sheet Offsetting (Tables) | 6 Months Ended | 12 Months Ended |
Jun. 30, 2023 | Dec. 31, 2022 | |
Derivative Instruments and Hedging Activities Disclosure [Abstract] | ||
Financial Instruments Eligible for Offset Consolidated Balance Sheet | Information about financial instruments that are eligible for offset in the consolidated balance sheet as of June 30, 2023 is presented in the following tables. Gross Amount Gross Amount Net Amount June 30, 2023 Financial assets: Derivatives: Interest rate contracts $ 92,961 $ — $ 92,961 Commodity contracts 37,369 — 37,369 Total derivatives 130,330 — 130,330 Resell agreements 84,650 — 84,650 Total $ 214,980 $ — $ 214,980 Financial liabilities: Derivatives: Interest rate contracts $ 1,332 $ — $ 1,332 Commodity contracts 28,070 — 28,070 Total derivatives 29,402 — 29,402 Repurchase agreements 3,569,870 — 3,569,870 Total $ 3,599,272 $ — $ 3,599,272 | Information about financial instruments that are eligible for offset in the consolidated balance sheet as of December 31, 2022 is presented in the following tables. Gross Amount Gross Amount Net Amount December 31, 2022 Financial assets: Derivatives: Interest rate contracts $ 85,691 $ — $ 85,691 Commodity contracts 33,302 — 33,302 Foreign currency contracts 1 — 1 Total derivatives 118,994 — 118,994 Resell agreements 87,150 — 87,150 Total $ 206,144 $ — $ 206,144 Financial liabilities: Derivatives: Interest rate contracts $ 1,102 $ — $ 1,102 Commodity contracts 72,717 — 72,717 Foreign currency contracts 10 — 10 Total derivatives 73,829 — 73,829 Repurchase agreements 4,660,641 — 4,660,641 Total $ 4,734,470 $ — $ 4,734,470 |
Financial Instruments Derivative Assets Liabilities and Resell Agreements Net of Amount Not Offset | Gross Amounts Not Offset Net Amount Financial Collateral Net June 30, 2023 Financial assets: Derivatives: Counterparty B $ 32,143 $ (9,548) $ (22,595) $ — Counterparty E 16,312 (896) (15,240) 176 Counterparty F 18,387 (8,839) (9,463) 85 Counterparty G 10,484 — (10,430) 54 Other counterparties 53,004 (10,119) (42,861) 24 Total derivatives 130,330 (29,402) (100,589) 339 Resell agreements 84,650 — (84,650) — Total $ 214,980 $ (29,402) $ (185,239) $ 339 Financial liabilities: Derivatives: Counterparty B $ 9,548 $ (9,548) $ — $ — Counterparty E 896 (896) — — Counterparty F 8,839 (8,839) — — Other counterparties 10,119 (10,119) — — Total derivatives 29,402 (29,402) — — Repurchase agreements 3,569,870 — (3,569,870) — Total $ 3,599,272 $ (29,402) $ (3,569,870) $ — | Gross Amounts Not Offset Net Amount Financial Collateral Net December 31, 2022 Financial assets: Derivatives: Counterparty B $ 39,370 $ (24,500) $ (14,870) $ — Counterparty E 14,430 (47) (14,131) 252 Counterparty F 17,297 (17,297) — — Counterparty G 10,660 — (10,660) — Other counterparties 37,237 (20,684) (16,307) 246 Total derivatives 118,994 (62,528) (55,968) 498 Resell agreements 87,150 — (87,150) — Total $ 206,144 $ (62,528) $ (143,118) $ 498 Financial liabilities: Derivatives: Counterparty B $ 24,500 $ (24,500) $ — $ — Counterparty E 47 (47) — — Counterparty F 27,747 (17,297) (8,479) 1,971 Counterparty G — — — — Other counterparties 21,535 (20,684) (851) — Total derivatives 73,829 (62,528) (9,330) 1,971 Repurchase agreements 4,660,641 — (4,660,641) — Total $ 4,734,470 $ (62,528) $ (4,669,971) $ 1,971 |
Remaining Contractual Maturity of the Securities Sold Under Agreement [Table Text Block] | The remaining contractual maturity of repurchase agreements in the consolidated balance sheets as of June 30, 2023 and December 31, 2022 is presented in the following tables. Remaining Contractual Maturity of the Agreements Overnight and Continuous Up to 30 Days 30-90 Days Greater than 90 Days Total June 30, 2023 Repurchase agreements: U.S. Treasury $ 2,716,439 $ — $ — $ — $ 2,716,439 Residential mortgage-backed securities 853,431 — — — 853,431 Total borrowings $ 3,569,870 $ — $ — $ — $ 3,569,870 Gross amount of recognized liabilities for repurchase agreements $ 3,569,870 Amounts related to agreements not included in offsetting disclosures above $ — December 31, 2022 Repurchase agreements: U.S. Treasury $ 3,735,061 $ — $ — $ — $ 3,735,061 Residential mortgage-backed securities 925,580 — — — 925,580 Total borrowings $ 4,660,641 $ — $ — $ — $ 4,660,641 Gross amount of recognized liabilities for repurchase agreements $ 4,660,641 Amounts related to agreements not included in offsetting disclosures above $ — |
Stock-Based Compensation (Table
Stock-Based Compensation (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Share-Based Payment Arrangement [Abstract] | |
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award | A combined summary of activity in our active stock plans is presented in the table below. Performance stock units outstanding are presented assuming attainment of the maximum payout rate as set forth by the performance criteria. As of June 30, 2023, there were 514,028 shares remaining available for grant for future stock-based compensation awards. Deferred Non-Vested Performance Stock Options Number Weighted- Number Weighted- Number Weighted- Number Weighted- Balance, January 1, 2023 45,661 $ 87.15 465,319 $ 105.36 213,749 $ 96.20 616,227 $ 71.27 Granted 8,503 103.47 2,594 128.42 — — — — Exercised/vested — — (1,957) 91.96 (28,151) 85.74 (33,905) 72.13 Forfeited/expired — — (1,415) 116.02 (18,254) 85.74 — — Balance, June 30, 2023 54,164 89.71 464,541 105.52 167,344 99.10 582,322 71.22 |
Shares Issued in Connection with Stock Compensation Awards | Shares issued in connection with stock compensation awards along with other related information were as follows: Three Months Ended Six Months Ended 2023 2022 2023 2022 New shares issued from available authorized shares — — 49,887 — Shares issued from available treasury stock 13,626 28,832 14,126 144,262 Proceeds from stock option exercises $ 946 $ 751 $ 2,446 $ 6,490 |
Share-based Payment Arrangement, Cost by Plan | Stock-based compensation expense or benefit and the related income tax benefit is presented in the following table. The service period for performance stock units granted each year begins on January 1 of the following year. Three Months Ended Six Months Ended 2023 2022 2023 2022 Non-vested stock units $ 2,864 $ 2,291 $ 6,171 $ 4,649 Deferred stock units 880 720 880 720 Performance stock units 1,049 407 2,484 161 Total $ 4,793 $ 3,418 $ 9,535 $ 5,530 Income tax benefit $ 800 $ 612 $ 1,868 $ 1,320 |
Unrecognized Stock-Based Compensation Expense | Unrecognized stock-based compensation expense at June 30, 2023 is presented in the table below. Unrecognized stock-based compensation expense related to performance stock units is presented assuming attainment of the maximum payout rate as set forth by the performance criteria. Non-vested stock units $ 15,768 Performance stock units 7,029 Total $ 22,797 |
Earnings Per Common Share (Tabl
Earnings Per Common Share (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Earnings Per Share [Abstract] | |
Basic and Diluted Earnings Per Common Share | The following table presents a reconciliation of net income available to common shareholders, net earnings allocated to common stock and the number of shares used in the calculation of basic and diluted earnings per common share. Three Months Ended Six Months Ended 2023 2022 2023 2022 Net income $ 162,118 $ 119,114 $ 339,771 $ 218,216 Less: Preferred stock dividends 1,669 1,669 3,338 3,338 Net income available to common shareholders 160,449 117,445 336,433 214,878 Less: Earnings allocated to participating securities 1,645 1,036 3,468 1,888 Net earnings allocated to common stock $ 158,804 $ 116,409 $ 332,965 $ 212,990 Distributed earnings allocated to common stock $ 55,783 $ 48,092 $ 111,789 $ 96,143 Undistributed earnings allocated to common stock 103,021 68,317 221,176 116,847 Net earnings allocated to common stock $ 158,804 $ 116,409 $ 332,965 $ 212,990 Weighted-average shares outstanding for basic earnings per common share 64,240,789 64,112,828 64,306,809 64,082,185 Dilutive effect of stock compensation 187,172 354,401 225,267 382,395 Weighted-average shares outstanding for diluted earnings per common share 64,427,961 64,467,229 64,532,076 64,464,580 |
Defined Benefit Plans (Tables)
Defined Benefit Plans (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Retirement Benefits [Abstract] | |
Net Periodic Cost (Benefit) | The components of the combined net periodic expense (benefit) for our defined benefit pension plans are presented in the table below. Three Months Ended Six Months Ended 2023 2022 2023 2022 Expected return on plan assets, net of expenses $ (2,740) $ (3,492) $ (5,480) $ (6,983) Interest cost on projected benefit obligation 1,746 1,004 3,492 2,008 Net amortization and deferral 870 741 1,740 1,482 Net periodic expense (benefit) $ (124) $ (1,747) $ (248) $ (3,493) |
Income Taxes (Tables)
Income Taxes (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Income Tax Disclosure [Abstract] | |
Income Tax Expense | Income tax expense was as follows: Three Months Ended Six Months Ended 2023 2022 2023 2022 Current income tax expense $ 32,413 $ 22,646 $ 67,408 $ 35,705 Deferred income tax expense (benefit) (680) (1,972) (2,489) (2,404) Income tax expense, as reported $ 31,733 $ 20,674 $ 64,919 $ 33,301 Effective tax rate 16.4 % 14.8 % 16.0 % 13.2 % |
Other Comprehensive Income (L_2
Other Comprehensive Income (Loss) (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Equity [Abstract] | |
Comprehensive Income (Loss) | The before and after tax amounts allocated to each component of other comprehensive income (loss) are presented in the following table. Reclassification adjustments related to securities available for sale are included in net gain (loss) on securities transactions in the accompanying consolidated statements of income. Reclassification adjustments related to defined-benefit post-retirement benefit plans are included in the computation of net periodic pension expense (see Note 12 – Defined Benefit Plans). Three Months Ended Three Months Ended Before Tax Tax Expense, Net of Tax Before Tax Tax Expense, Net of Tax Securities available for sale and transferred securities: Change in net unrealized gain/loss during the period $ (206,863) $ (43,441) $ (163,422) $ (636,523) $ (133,670) $ (502,853) Change in net unrealized gain on securities transferred to held to maturity (162) (34) (128) (189) (40) (149) Reclassification adjustment for net (gains) losses included in net income (33) (7) (26) — — — Total securities available for sale and transferred securities (207,058) (43,482) (163,576) (636,712) (133,710) (503,002) Defined-benefit post-retirement benefit plans: Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit) 870 183 687 741 155 586 Total defined-benefit post-retirement benefit plans 870 183 687 741 155 586 Total other comprehensive income (loss) $ (206,188) $ (43,299) $ (162,889) $ (635,971) $ (133,555) $ (502,416) Six Months Ended Six Months Ended Before Tax Tax Expense, Net of Tax Before Tax Tax Expense, Net of Tax Securities available for sale and transferred securities: Change in net unrealized gain/loss during the period $ 53,406 $ 11,215 $ 42,191 $ (1,547,318) $ (324,937) $ (1,222,381) Change in net unrealized gain on securities transferred to held to maturity (322) (67) (255) (398) (84) (314) Reclassification adjustment for net (gains) losses included in net income (54) (11) (43) — — — Total securities available for sale and transferred securities 53,030 11,137 41,893 (1,547,716) (325,021) (1,222,695) Defined-benefit post-retirement benefit plans: Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic expense (benefit) 1,740 366 1,374 1,482 311 1,171 Total defined-benefit post-retirement benefit plans 1,740 366 1,374 1,482 311 1,171 Total other comprehensive income (loss) $ 54,770 $ 11,503 $ 43,267 $ (1,546,234) $ (324,710) $ (1,221,524) |
Schedule of Accumulated Other Comprehensive Income (Loss) | Activity in accumulated other comprehensive income (loss), net of tax, was as follows: Securities Defined Accumulated Balance at January 1, 2023 $ (1,313,791) $ (34,503) $ (1,348,294) Other comprehensive income (loss) before reclassifications 41,936 — 41,936 Reclassification of amounts included in net income (43) 1,374 1,331 Net other comprehensive income (loss) during period 41,893 1,374 43,267 Balance at June 30, 2023 $ (1,271,898) $ (33,129) $ (1,305,027) Balance at January 1, 2022 $ 380,209 $ (32,891) $ 347,318 Other comprehensive income (loss) before reclassifications (1,222,695) — (1,222,695) Reclassification of amounts included in net income — 1,171 1,171 Net other comprehensive income (loss) during period (1,222,695) 1,171 (1,221,524) Balance at June 30, 2022 $ (842,486) $ (31,720) $ (874,206) |
Operating Segments (Tables)
Operating Segments (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Segment Reporting [Abstract] | |
Summary of Operating Results by Segment | Summarized operating results by segment were as follows: Banking Frost Wealth Non-Banks Consolidated Three months ended: June 30, 2023 Net interest income (expense) $ 385,720 $ 2,090 $ (2,544) $ 385,266 Credit loss expense 9,901 — — 9,901 Non-interest income 57,808 46,147 (427) 103,528 Non-interest expense 246,927 35,558 2,557 285,042 Income (loss) before income taxes 186,700 12,679 (5,528) 193,851 Income tax expense (benefit) 30,636 2,663 (1,566) 31,733 Net income (loss) 156,064 10,016 (3,962) 162,118 Preferred stock dividends — — 1,669 1,669 Net income (loss) available to common shareholders $ 156,064 $ 10,016 $ (5,631) $ 160,449 Revenues from (expenses to) external customers $ 443,528 $ 48,237 $ (2,971) $ 488,794 June 30, 2022 Net interest income (expense) $ 289,186 $ 958 $ (1,936) $ 288,208 Credit loss expense (benefit) 1 (1) — — Non-interest income 55,397 43,054 (524) 97,927 Non-interest expense 211,044 33,158 2,145 246,347 Income (loss) before income taxes 133,538 10,855 (4,605) 139,788 Income tax expense (benefit) 19,821 2,279 (1,426) 20,674 Net income (loss) 113,717 8,576 (3,179) 119,114 Preferred stock dividends — — 1,669 1,669 Net income (loss) available to common shareholders $ 113,717 $ 8,576 $ (4,848) $ 117,445 Revenues from (expenses to) external customers $ 344,583 $ 44,012 $ (2,460) $ 386,135 Banking Frost Wealth Non-Banks Consolidated Six months ended: June 30, 2023 Net interest income (expense) $ 785,857 $ 3,744 $ (4,515) $ 785,086 Credit loss expense (benefit) 19,003 2 — 19,005 Non-interest income 121,451 88,185 (843) 208,793 Non-interest expense 496,794 69,505 3,885 570,184 Income (loss) before income taxes 391,511 22,422 (9,243) 404,690 Income tax expense (benefit) 62,754 4,709 (2,544) 64,919 Net income (loss) 328,757 17,713 (6,699) 339,771 Preferred stock dividends — — 3,338 3,338 Net income (loss) available to common shareholders $ 328,757 $ 17,713 $ (10,037) $ 336,433 Revenues from (expenses to) external customers $ 907,308 $ 91,929 $ (5,358) $ 993,879 June 30, 2022 Net interest income (expense) $ 539,305 $ 1,658 $ (3,684) $ 537,279 Credit loss expense — — — — Non-interest income 114,103 86,283 (1,069) 199,317 Non-interest expense 417,582 64,068 3,429 485,079 Income (loss) before income taxes 235,826 23,873 (8,182) 251,517 Income tax expense (benefit) 30,835 5,013 (2,547) 33,301 Net income (loss) 204,991 18,860 (5,635) 218,216 Preferred stock dividends — — 3,338 3,338 Net income (loss) available to common shareholders $ 204,991 $ 18,860 $ (8,973) $ 214,878 Revenues from (expenses to) external customers $ 653,408 $ 87,941 $ (4,753) $ 736,596 |
Fair Value Measurements (Tables
Fair Value Measurements (Tables) | 6 Months Ended |
Jun. 30, 2023 | |
Fair Value Disclosures [Abstract] | |
Financial Assets and Financial Liabilities Measured at Fair Value on Recurring Basis | The tables below summarize financial assets and financial liabilities measured at fair value on a recurring basis as of June 30, 2023 and December 31, 2022, segregated by the level of the valuation inputs within the fair value hierarchy of ASC Topic 820 utilized to measure fair value. Level 1 Inputs Level 2 Inputs Level 3 Inputs Total Fair Value June 30, 2023 Securities available for sale: U.S. Treasury $ 5,072,888 $ — $ — $ 5,072,888 Residential mortgage-backed securities — 6,792,775 — 6,792,775 States and political subdivisions — 5,341,016 — 5,341,016 Other — 42,578 — 42,578 Trading account securities: U.S. Treasury 27,546 — — 27,546 States and political subdivisions — 4,971 — 4,971 Derivative assets: Interest rate swaps, caps and floors — 94,362 — 94,362 Commodity swaps and options — 65,814 — 65,814 Derivative liabilities: Interest rate swaps, caps and floors — 94,291 — 94,291 Commodity swaps and options — 64,802 — 64,802 December 31, 2022 Securities available for sale: U.S. Treasury $ 5,051,587 $ — $ — $ 5,051,587 Residential mortgage-backed securities — 6,376,236 — 6,376,236 States and political subdivisions — 6,773,355 — 6,773,355 Other — 42,427 — 42,427 Trading account securities: U.S. Treasury 25,879 — — 25,879 States and political subdivisions — 2,166 — 2,166 Derivative assets: Interest rate swaps, caps and floors — 86,793 — 86,793 Commodity swaps and options — 106,685 — 106,685 Foreign currency forward contracts 11 — — 11 Derivative liabilities: Interest rate swaps, caps and floors — 95,533 — 95,533 Commodity swaps and options — 105,392 — 105,392 Foreign currency forward contracts 11 — — 11 |
Impaired Loans Remeasured And Reported At Fair Value Specific Valuation Allowance Allocation Method Of Underlying Collateral [Table Text Block] | The following table presents collateral dependent loans that were remeasured and reported at fair value through a specific allocation of the allowance for credit losses on loans based upon the fair value of the underlying collateral during the reported periods. Six Months Ended Six Months Ended Level 2 Level 3 Level 2 Level 3 Carrying value before allocations $ 19,064 $ 20,171 $ 5,454 $ 3,614 Specific (allocations) reversals of prior allocations (1,300) (2,100) (1,327) 6,877 Fair value $ 17,764 $ 18,071 $ 4,127 $ 10,491 |
Estimated Fair Values of Financial Instruments | The estimated fair values of financial instruments that are reported at amortized cost in our consolidated balance sheets, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value, were as follows: June 30, 2023 December 31, 2022 Carrying Estimated Carrying Estimated Financial assets: Level 2 inputs: Cash and cash equivalents $ 7,107,336 $ 7,107,336 $ 12,028,132 $ 12,028,132 Securities held to maturity 3,691,220 3,543,929 2,639,083 2,467,865 Cash surrender value of life insurance policies 190,575 190,575 190,188 190,188 Accrued interest receivable 236,967 236,967 243,682 243,682 Level 3 inputs: Loans, net 17,512,692 16,933,702 16,927,348 16,343,417 Financial liabilities: Level 2 inputs: Deposits 40,700,830 40,683,556 43,954,196 43,920,741 Federal funds purchased 13,525 13,525 51,650 51,650 Repurchase agreements 3,569,870 3,569,870 4,660,641 4,660,641 Junior subordinated deferrable interest debentures 123,098 123,712 123,069 123,712 Subordinated notes 99,413 94,571 99,335 97,014 Accrued interest payable 40,523 40,523 18,444 18,444 |
Significant Accounting Polici_4
Significant Accounting Policies - Additional Cash Flow Information (Detail) - USD ($) $ in Thousands | 6 Months Ended | |
Jun. 30, 2023 | Jun. 30, 2022 | |
Accounting Policies [Abstract] | ||
Cash paid for interest | $ 270,358 | $ 22,551 |
Cash paid for income taxes | 66,500 | 45,500 |
Unsettled securities transactions | 10,988 | 110,623 |
Right-of-use lease assets obtained in exchange for lessee operating lease liabilities | $ 8,914 | $ 8,857 |
Securities - Additional Informa
Securities - Additional Information (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Schedule Of Marketable Securities [Line Items] | ||
AOCI, Debt Securities, Available-for-sale, Adjustment, Pre Tax | $ 1,500 | $ 1,800 |
Net unamortized unrealized gain on transferred securities included in accumulated other comprehensive income, net of tax | $ 1,200 | 1,400 |
Percent Municipal Bond Portfolio Issued By Political Subdivision Or Agencies Within State Of Texas Guaranteed By Texas Permanent School Fund Or Have Been Pre-Refunded | 74.30% | |
Debt Securities, Available-for-sale, Allowance for Credit Loss | $ 0 | 0 |
Held-to-maturity Securities [Member] | ||
Schedule Of Marketable Securities [Line Items] | ||
Carry Value of Securities Pledged | 943,900 | 256,300 |
Accrued interest receivable | 39,400 | 30,200 |
Available-for-sale Securities [Member] | ||
Schedule Of Marketable Securities [Line Items] | ||
Carry Value of Securities Pledged | 5,200,000 | 8,000,000 |
Accrued interest receivable | $ 121,800 | $ 140,600 |
Securities Securities - Amortiz
Securities Securities - Amortized Cost, Allowance for Credit Losses and Estimated Fair Value of Securities Held to Maturity (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Schedule of Investments [Line Items] | ||
Held to Maturity, Amortized Cost | $ 3,691,487 | $ 2,639,241 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain | 24,288 | 13,048 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | 171,846 | 184,424 |
Debt Securities, Held-to-maturity, Fair Value | 3,543,929 | 2,467,865 |
Securities, held-to-maturity, allowance for credit loss | (267) | (158) |
Securities held to maturity, net of allowance for credit losses of $267 at June 30, 2023 and $158 at December 31, 2022 | 3,691,220 | 2,639,083 |
Residential Mortgage Backed Securities [Member] | ||
Schedule of Investments [Line Items] | ||
Held to Maturity, Amortized Cost | 1,265,818 | 526,122 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain | 0 | 0 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | 72,286 | 65,322 |
Debt Securities, Held-to-maturity, Fair Value | 1,193,532 | 460,800 |
Securities, held-to-maturity, allowance for credit loss | 0 | 0 |
Securities held to maturity, net of allowance for credit losses of $267 at June 30, 2023 and $158 at December 31, 2022 | 1,265,818 | 526,122 |
US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Investments [Line Items] | ||
Held to Maturity, Amortized Cost | 2,424,169 | 2,111,619 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain | 24,288 | 13,048 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | 99,491 | 119,033 |
Debt Securities, Held-to-maturity, Fair Value | 2,348,966 | 2,005,634 |
Securities, held-to-maturity, allowance for credit loss | (267) | (158) |
Securities held to maturity, net of allowance for credit losses of $267 at June 30, 2023 and $158 at December 31, 2022 | 2,423,902 | 2,111,461 |
Other Investments [Member] | ||
Schedule of Investments [Line Items] | ||
Held to Maturity, Amortized Cost | 1,500 | 1,500 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain | 0 | 0 |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | 69 | 69 |
Debt Securities, Held-to-maturity, Fair Value | 1,431 | 1,431 |
Securities, held-to-maturity, allowance for credit loss | 0 | 0 |
Securities held to maturity, net of allowance for credit losses of $267 at June 30, 2023 and $158 at December 31, 2022 | $ 1,500 | $ 1,500 |
Securities Securities - Moody's
Securities Securities - Moody's and/or Standard & Poor's Bond Rating (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | $ 3,691,487 | $ 2,639,241 |
US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 2,424,169 | 2,111,619 |
Other Investments [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 1,500 | 1,500 |
Moody's, Aaa Rating | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 1,913,140 | 1,817,604 |
Moody's, Aaa Rating | Other Investments [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 0 | 0 |
Moody's, Aa1 Rating | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 511,029 | 294,015 |
Moody's, Aa1 Rating | Other Investments [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 0 | 0 |
Not rated [Member] | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 0 | 0 |
Not rated [Member] | Other Investments [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 1,500 | 1,500 |
Not Guaranteed or Pre-Refunded [Member] | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 806,850 | 567,216 |
Not Guaranteed or Pre-Refunded [Member] | Moody's, Aaa Rating | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 301,922 | 273,201 |
Not Guaranteed or Pre-Refunded [Member] | Moody's, Aa1 Rating | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 504,928 | 294,015 |
Not Guaranteed or Pre-Refunded [Member] | Not rated [Member] | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 0 | 0 |
Guaranteed by the Texas PSF [Member] | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 1,544,702 | 1,422,442 |
Guaranteed by the Texas PSF [Member] | Moody's, Aaa Rating | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 1,544,702 | 1,422,442 |
Guaranteed by the Texas PSF [Member] | Moody's, Aa1 Rating | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 0 | 0 |
Guaranteed by the Texas PSF [Member] | Not rated [Member] | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 0 | 0 |
Guaranteed by Third Party | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 19,757 | 0 |
Guaranteed by Third Party | Moody's, Aaa Rating | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 13,656 | 0 |
Guaranteed by Third Party | Moody's, Aa1 Rating | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 6,101 | 0 |
Guaranteed by Third Party | Not rated [Member] | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 0 | 0 |
Pre-Refunded [Member] | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 52,860 | 121,961 |
Pre-Refunded [Member] | Moody's, Aaa Rating | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 52,860 | 121,961 |
Pre-Refunded [Member] | Moody's, Aa1 Rating | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | 0 | 0 |
Pre-Refunded [Member] | Not rated [Member] | US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities, Held-to-maturity | $ 0 | $ 0 |
Securities Securities - Allowan
Securities Securities - Allowance for Credit Losses on Held to Maturity Securities (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||||||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Mar. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | |
Schedule of Held-to-maturity Securities [Line Items] | ||||||||
Securities, held-to-maturity, allowance for credit loss | $ 267 | $ 267 | $ 158 | |||||
Debt Securities [Member] | ||||||||
Schedule of Held-to-maturity Securities [Line Items] | ||||||||
Securities, held-to-maturity, allowance for credit loss | 267 | $ 158 | 267 | $ 158 | $ 262 | $ 158 | $ 158 | $ 158 |
Credit loss expense (benefit) | $ 5 | $ 0 | $ 109 | $ 0 |
Securities Securities - Amort_2
Securities Securities - Amortized Cost, Allowance for Credit Losses and Estimated Fair Value of Securities Available for Sale (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Schedule of Investments [Line Items] | ||
Debt Securities, Available-for-sale, Amortized Cost | $ 18,860,732 | $ 19,908,432 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 6,203 | 17,158 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 1,617,678 | 1,681,985 |
Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
Securities available for sale, at estimated fair value | 17,249,257 | 18,243,605 |
US Treasury Securities [Member] | ||
Schedule of Investments [Line Items] | ||
Debt Securities, Available-for-sale, Amortized Cost | 5,456,656 | 5,450,546 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 0 | 0 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 383,768 | 398,959 |
Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
Securities available for sale, at estimated fair value | 5,072,888 | 5,051,587 |
Residential Mortgage Backed Securities [Member] | ||
Schedule of Investments [Line Items] | ||
Debt Securities, Available-for-sale, Amortized Cost | 7,725,403 | 7,316,824 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 5,105 | 8,050 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 937,733 | 948,638 |
Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
Securities available for sale, at estimated fair value | 6,792,775 | 6,376,236 |
US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Investments [Line Items] | ||
Debt Securities, Available-for-sale, Amortized Cost | 5,636,095 | 7,098,635 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 1,098 | 9,108 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 296,177 | 334,388 |
Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
Securities available for sale, at estimated fair value | 5,341,016 | 6,773,355 |
Other Investments [Member] | ||
Schedule of Investments [Line Items] | ||
Debt Securities, Available-for-sale, Amortized Cost | 42,578 | 42,427 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 0 | 0 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 0 | 0 |
Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0 |
Securities available for sale, at estimated fair value | $ 42,578 | $ 42,427 |
Securities - Securities Availab
Securities - Securities Available for Sale, with Unrealized Losses Segregated by Length of Impairment (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Schedule of Available-for-Sale Securities [Line Items] | ||
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 7,055,474 | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 169,523 | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 9,368,445 | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 1,448,155 | |
Debt Securities, Available-for-sale, Unrealized Loss Position | 16,423,919 | |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 1,617,678 | $ 1,681,985 |
U.S. Treasury [Member] | ||
Schedule of Available-for-Sale Securities [Line Items] | ||
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 1,487,790 | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 58,237 | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 3,585,097 | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 325,531 | |
Debt Securities, Available-for-sale, Unrealized Loss Position | 5,072,887 | |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 383,768 | 398,959 |
Residential Mortgage Backed Securities [Member] | ||
Schedule of Available-for-Sale Securities [Line Items] | ||
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 2,176,299 | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 65,646 | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 4,239,828 | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 872,087 | |
Debt Securities, Available-for-sale, Unrealized Loss Position | 6,416,127 | |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 937,733 | 948,638 |
States and political subdivisions [Member] | ||
Schedule of Available-for-Sale Securities [Line Items] | ||
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 3,391,385 | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 45,640 | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 1,543,520 | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 250,537 | |
Debt Securities, Available-for-sale, Unrealized Loss Position | 4,934,905 | |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | $ 296,177 | $ 334,388 |
Securities - Amortized Cost and
Securities - Amortized Cost and Estimated Fair Value of Securities, Excluding Trading Securities, Presented by Contractual Maturity (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Schedule of Investments [Line Items] | ||
Held to Maturity, Due in one year or less, Amortized Cost | $ 59,282 | |
Held to Maturity, Due after one year through five years, Amortized Cost | 15,524 | |
Held to Maturity, Due after five years through ten years, Amortized Cost | 551,088 | |
Held to Maturity, Due after ten years, Amortized Cost | 3,065,593 | |
Held to Maturity, Amortized Cost | 3,691,487 | $ 2,639,241 |
Held to Maturity, Due in one year or less, Estimated Fair Value | 59,242 | |
Held to Maturity, Due after one year through five years, Estimated Fair Value | 15,380 | |
Held to Maturity, Due after five years through ten years, Estimated Fair Value | 487,459 | |
Held to Maturity, Due after ten years, Estimated Fair Value | 2,981,848 | |
Held to Maturity, Estimated Fair Value | 3,543,929 | 2,467,865 |
Available-for-sale Securities, Due in one year or less, Amortized Cost | 1,725,618 | |
Available for Sale, Due after one year through five years, Amortized Cost | 2,864,894 | |
Available for Sale, Due after five years through ten years, Amortized Cost | 2,283,180 | |
Available for Sale, Due after ten years, Amortized Cost | 11,944,462 | |
Debt Securities, Available-for-sale, Amortized Cost | 18,860,732 | 19,908,432 |
Available for Sale, Due in one year or less, Estimated Fair Value | 1,696,603 | |
Available for Sale, Due after one year through five years, Estimated Fair Value | 2,740,369 | |
Available for Sale, Due after five years through ten years, Estimated Fair Value | 2,077,949 | |
Available for Sale, Due after ten years, Estimated Fair Value | 10,691,758 | |
Securities available for sale, at estimated fair value | 17,249,257 | 18,243,605 |
US Treasury Securities [Member] | ||
Schedule of Investments [Line Items] | ||
Available-for-sale Securities, Due in one year or less, Amortized Cost | 1,286,197 | |
Available for Sale, Due after one year through five years, Amortized Cost | 2,542,538 | |
Available for Sale, Due after five years through ten years, Amortized Cost | 1,435,692 | |
Available for Sale, Due after ten years, Amortized Cost | 192,229 | |
Debt Securities, Available-for-sale, Amortized Cost | 5,456,656 | 5,450,546 |
Available for Sale, Due in one year or less, Estimated Fair Value | 1,257,329 | |
Available for Sale, Due after one year through five years, Estimated Fair Value | 2,420,131 | |
Available for Sale, Due after five years through ten years, Estimated Fair Value | 1,250,420 | |
Available for Sale, Due after ten years, Estimated Fair Value | 145,008 | |
Securities available for sale, at estimated fair value | 5,072,888 | 5,051,587 |
Residential Mortgage Backed Securities [Member] | ||
Schedule of Investments [Line Items] | ||
Held to Maturity, Due in one year or less, Amortized Cost | 0 | |
Held to Maturity, Due after one year through five years, Amortized Cost | 0 | |
Held to Maturity, Due after five years through ten years, Amortized Cost | 513,530 | |
Held to Maturity, Due after ten years, Amortized Cost | 752,288 | |
Held to Maturity, Amortized Cost | 1,265,818 | 526,122 |
Held to Maturity, Due in one year or less, Estimated Fair Value | 0 | |
Held to Maturity, Due after one year through five years, Estimated Fair Value | 0 | |
Held to Maturity, Due after five years through ten years, Estimated Fair Value | 450,850 | |
Held to Maturity, Due after ten years, Estimated Fair Value | 742,682 | |
Held to Maturity, Estimated Fair Value | 1,193,532 | 460,800 |
Available-for-sale Securities, Due in one year or less, Amortized Cost | 310 | |
Available for Sale, Due after one year through five years, Amortized Cost | 4,985 | |
Available for Sale, Due after five years through ten years, Amortized Cost | 15,986 | |
Available for Sale, Due after ten years, Amortized Cost | 7,704,122 | |
Debt Securities, Available-for-sale, Amortized Cost | 7,725,403 | 7,316,824 |
Available for Sale, Due in one year or less, Estimated Fair Value | 305 | |
Available for Sale, Due after one year through five years, Estimated Fair Value | 4,865 | |
Available for Sale, Due after five years through ten years, Estimated Fair Value | 15,898 | |
Available for Sale, Due after ten years, Estimated Fair Value | 6,771,707 | |
Securities available for sale, at estimated fair value | 6,792,775 | 6,376,236 |
US States and Political Subdivisions Debt Securities [Member] | ||
Schedule of Investments [Line Items] | ||
Held to Maturity, Due in one year or less, Amortized Cost | 59,282 | |
Held to Maturity, Due after one year through five years, Amortized Cost | 14,024 | |
Held to Maturity, Due after five years through ten years, Amortized Cost | 37,558 | |
Held to Maturity, Due after ten years, Amortized Cost | 2,313,305 | |
Held to Maturity, Amortized Cost | 2,424,169 | 2,111,619 |
Held to Maturity, Due in one year or less, Estimated Fair Value | 59,242 | |
Held to Maturity, Due after one year through five years, Estimated Fair Value | 13,949 | |
Held to Maturity, Due after five years through ten years, Estimated Fair Value | 36,609 | |
Held to Maturity, Due after ten years, Estimated Fair Value | 2,239,166 | |
Held to Maturity, Estimated Fair Value | 2,348,966 | 2,005,634 |
Available-for-sale Securities, Due in one year or less, Amortized Cost | 439,111 | |
Available for Sale, Due after one year through five years, Amortized Cost | 317,371 | |
Available for Sale, Due after five years through ten years, Amortized Cost | 831,502 | |
Available for Sale, Due after ten years, Amortized Cost | 4,048,111 | |
Debt Securities, Available-for-sale, Amortized Cost | 5,636,095 | 7,098,635 |
Available for Sale, Due in one year or less, Estimated Fair Value | 438,969 | |
Available for Sale, Due after one year through five years, Estimated Fair Value | 315,373 | |
Available for Sale, Due after five years through ten years, Estimated Fair Value | 811,631 | |
Available for Sale, Due after ten years, Estimated Fair Value | 3,775,043 | |
Securities available for sale, at estimated fair value | 5,341,016 | 6,773,355 |
Other Investments [Member] | ||
Schedule of Investments [Line Items] | ||
Held to Maturity, Due in one year or less, Amortized Cost | 0 | |
Held to Maturity, Due after one year through five years, Amortized Cost | 1,500 | |
Held to Maturity, Due after five years through ten years, Amortized Cost | 0 | |
Held to Maturity, Due after ten years, Amortized Cost | 0 | |
Held to Maturity, Amortized Cost | 1,500 | 1,500 |
Held to Maturity, Due in one year or less, Estimated Fair Value | 0 | |
Held to Maturity, Due after one year through five years, Estimated Fair Value | 1,431 | |
Held to Maturity, Due after five years through ten years, Estimated Fair Value | 0 | |
Held to Maturity, Due after ten years, Estimated Fair Value | 0 | |
Held to Maturity, Estimated Fair Value | 1,431 | 1,431 |
Available-for-sale Securities, Due in one year or less, Amortized Cost | 0 | |
Available for Sale, Due after one year through five years, Amortized Cost | 0 | |
Available for Sale, Due after five years through ten years, Amortized Cost | 0 | |
Available for Sale, Due after ten years, Amortized Cost | 0 | |
Debt Securities, Available-for-sale, Amortized Cost | 42,578 | 42,427 |
Available for Sale, Due in one year or less, Estimated Fair Value | 0 | |
Available for Sale, Due after one year through five years, Estimated Fair Value | 0 | |
Available for Sale, Due after five years through ten years, Estimated Fair Value | 0 | |
Available for Sale, Due after ten years, Estimated Fair Value | 0 | |
Securities available for sale, at estimated fair value | $ 42,578 | $ 42,427 |
Securities - Sales of Available
Securities - Sales of Available for Sale Securities (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Investments, Debt and Equity Securities [Abstract] | ||||
Proceeds from sales | $ 659,082 | $ 0 | $ 1,543,355 | $ 0 |
Gross realized gains | 561 | 0 | 5,417 | 0 |
Gross realized losses | (528) | 0 | (5,363) | 0 |
Tax (expense) benefit of securities gains/losses | $ (7) | $ 0 | $ (11) | $ 0 |
Securities Securities - Premium
Securities Securities - Premium Amortization and Discount Accretion Included in Income on Securities (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Investments, Debt and Equity Securities [Abstract] | ||||
Premium amortization | $ (21,242) | $ (28,053) | $ (47,167) | $ (57,113) |
Discount accretion | 4,843 | 2,482 | 10,248 | 3,888 |
Net (premium amortization) discount accretion | $ (16,399) | $ (25,571) | $ (36,919) | $ (53,225) |
Securities - Trading Account Se
Securities - Trading Account Securities, at Estimated Fair Value (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Debt and Equity Securities, FV-NI [Line Items] | ||
Trading account securities | $ 32,517 | $ 28,045 |
U.S. Treasury [Member] | ||
Debt and Equity Securities, FV-NI [Line Items] | ||
Trading account securities | 27,546 | 25,879 |
States and political subdivisions [Member] | ||
Debt and Equity Securities, FV-NI [Line Items] | ||
Trading account securities | $ 4,971 | $ 2,166 |
Securities - Net Gains and Loss
Securities - Net Gains and Losses on Trading Account Securities (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Investments, Debt and Equity Securities [Abstract] | ||||
Net gain on sales transactions | $ 903 | $ 1,012 | $ 1,871 | $ 1,352 |
Net mark-to-market gains (losses) | (10) | (76) | (27) | (244) |
Net gain (loss) on trading account securities | $ 893 | $ 936 | $ 1,844 | $ 1,108 |
Loans - Additional Information
Loans - Additional Information (Detail) $ in Thousands | 3 Months Ended | 6 Months Ended | ||||||
Jun. 30, 2023 USD ($) | Jun. 30, 2022 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2022 USD ($) | Mar. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Concentration of loans in a single industry in excess of ten percent | 0% | 0% | ||||||
Maximum percentage loan related to single industry | 10% | 10% | ||||||
U.S. dollar denominated loans and commitments to borrowers in Mexico | $ 0 | $ 0 | $ 0 | |||||
Loans and Leases Receivable, Related Parties | $ 389,200 | $ 389,200 | $ 391,300 | |||||
Texas Leading Index economic condition indicator | 127.7 | 127.7 | 130.3 | |||||
Financing Receivable, Change in Method, Credit Loss Expense (Reversal) | $ (45,000) | |||||||
Financing Receivable, Allowance for Credit Loss | $ 233,619 | 233,619 | $ 227,621 | |||||
Loans, net of unearned discounts | 17,746,311 | 17,746,311 | 17,154,969 | |||||
Nonperforming Financial Instruments [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 12,248 | 12,248 | ||||||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 8 | 8 | ||||||
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 8,267 | 8,267 | ||||||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 4,562 | 4,562 | ||||||
Payment Deferral | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Loans, net of unearned discounts | 0 | $ 1,116 | 0 | $ 1,116 | ||||
Additional Funding Agreement Terms | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Loans, net of unearned discounts | $ 0 | $ 0 | ||||||
Commercial and Industrial Total Energy Loans [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Percentage of total energy loans to total loans | 5.60% | 5.60% | ||||||
Financing Receivable, Allowance for Credit Loss | $ 14,929 | 16,267 | $ 14,929 | 16,267 | $ 19,191 | 18,062 | $ 15,422 | $ 17,217 |
Financing Receivable, Allowance for Credit Loss, Writeoff | 518 | 0 | 518 | 371 | ||||
Loans, net of unearned discounts | 986,571 | 986,571 | 925,729 | |||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 311,743 | 311,743 | ||||||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 70,287 | 70,287 | ||||||
Commercial and Industrial Total Energy Loans [Member] | Nonperforming Financial Instruments [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 10,324 | 10,324 | ||||||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||||||
Commercial and Industrial Total Energy Loans [Member] | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 | ||||||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||||||
Paycheck Protection Program [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Allowance for Credit Loss | 0 | 0 | 0 | 0 | 0 | |||
Loans, net of unearned discounts | 22,333 | 22,333 | 34,852 | |||||
Non Accrual Loans [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Additional interest that would have been recognized on non-accrual loans, net of tax | 835 | 436 | 1,400 | 843 | ||||
Total consumer real estate loans [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Allowance for Credit Loss | 13,035 | 6,854 | 13,035 | 6,854 | 9,708 | 8,004 | 6,359 | 6,585 |
Financing Receivable, Allowance for Credit Loss, Writeoff | 1,080 | 131 | 1,330 | 362 | ||||
Loans, net of unearned discounts | 2,157,916 | 2,157,916 | 1,843,539 | |||||
Total consumer real estate loans [Member] | Nonperforming Financial Instruments [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 | ||||||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||||||
Total consumer real estate loans [Member] | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 | ||||||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||||||
Commercial Portfolio Segment [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Allowance for Credit Loss | 75,166 | 87,270 | 75,166 | 87,270 | 78,465 | 104,237 | 87,026 | 72,091 |
Financing Receivable, Allowance for Credit Loss, Writeoff | 7,136 | 1,891 | 13,316 | 5,346 | ||||
Loans, net of unearned discounts | 5,726,804 | 5,726,804 | 5,674,798 | |||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 1,145,305 | 1,145,305 | ||||||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 941,744 | 941,744 | ||||||
Commercial Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 | ||||||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||||||
Commercial Portfolio Segment [Member] | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 124 | 124 | ||||||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 208 | 208 | ||||||
Commercial Portfolio Segment [Member] | Payment Deferral | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Loans, net of unearned discounts | 0 | 0 | ||||||
Consumer Loan [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Allowance for Credit Loss | 9,563 | 12,135 | 9,563 | 12,135 | $ 8,457 | 7,017 | $ 9,074 | $ 7,837 |
Financing Receivable, Allowance for Credit Loss, Writeoff | 7,016 | $ 5,322 | 13,958 | $ 11,093 | ||||
Loans, net of unearned discounts | 459,720 | 459,720 | 492,726 | |||||
Consumer Loan [Member] | Nonperforming Financial Instruments [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 | ||||||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||||||
Consumer Loan [Member] | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 8,143 | 8,143 | ||||||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 4,354 | 4,354 | ||||||
Bank Overdrafts | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 8,100 | 8,100 | ||||||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 4,200 | 4,200 | ||||||
Commitments to Extend Credit [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financial instruments with off- balance-sheet risk | 12,208,032 | 12,208,032 | 12,137,957 | |||||
Commitments to Extend Credit [Member] | Automobile Loan | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Unfunded balances | 454,900 | 454,900 | ||||||
Commitments to Extend Credit [Member] | Commercial and Industrial Total Energy Loans [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Unfunded balances | 1,000,000 | 1,000,000 | ||||||
Standby Letters of Credit [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Financial instruments with off- balance-sheet risk | 405,900 | 405,900 | 383,851 | |||||
Standby Letters of Credit [Member] | Commercial and Industrial Total Energy Loans [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Unfunded balances | 84,100 | 84,100 | ||||||
Standby Letters of Credit [Member] | Automobiles | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Unfunded balances | 20,100 | 20,100 | ||||||
Loans Receivable [Member] | ||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
Interest Receivable | $ 73,900 | $ 73,900 | $ 68,700 |
Loans - Loans (Detail)
Loans - Loans (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | $ 17,746,311 | $ 17,154,969 |
Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 5,726,804 | 5,674,798 |
Energy Production [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 718,829 | 696,570 |
Energy Service [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 138,816 | 133,542 |
Energy Other [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 128,926 | 95,617 |
Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 986,571 | 925,729 |
Paycheck Protection Program [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 22,333 | 34,852 |
Commercial mortgage [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 6,389,649 | 6,168,910 |
Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 1,468,071 | 1,477,247 |
Commercial land loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 535,247 | 537,168 |
Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 8,392,967 | 8,183,325 |
Home Equity Line of Credit [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 730,557 | 691,841 |
Home Equity Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 575,284 | 449,507 |
Home Improvement Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 680,811 | 577,377 |
Other consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 171,264 | 124,814 |
Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 2,157,916 | 1,843,539 |
Real Estate Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | 10,550,883 | 10,026,864 |
Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans, net of unearned discounts | $ 459,720 | $ 492,726 |
Loans - Non-Accrual Loans, Segr
Loans - Non-Accrual Loans, Segregated by Class of Loans (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Non Accrual Loans Segregated By Class Of Loans [Line Items] | ||
Non-accrual loans | $ 67,781 | $ 37,833 |
Non-accrual with no credit loss allowance | 25,484 | 18,571 |
Commercial Portfolio Segment [Member] | ||
Non Accrual Loans Segregated By Class Of Loans [Line Items] | ||
Non-accrual loans | 22,217 | 18,130 |
Non-accrual with no credit loss allowance | 3,817 | 8,514 |
Commercial and Industrial Total Energy Loans [Member] | ||
Non Accrual Loans Segregated By Class Of Loans [Line Items] | ||
Non-accrual loans | 16,712 | 15,224 |
Non-accrual with no credit loss allowance | 11,880 | 7,139 |
Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Non Accrual Loans Segregated By Class Of Loans [Line Items] | ||
Non-accrual loans | 25,682 | 3,552 |
Non-accrual with no credit loss allowance | 6,617 | 1,991 |
Construction Loans [Member] | ||
Non Accrual Loans Segregated By Class Of Loans [Line Items] | ||
Non-accrual loans | 0 | 0 |
Non-accrual with no credit loss allowance | 0 | 0 |
Total consumer real estate loans [Member] | ||
Non Accrual Loans Segregated By Class Of Loans [Line Items] | ||
Non-accrual loans | 3,170 | 927 |
Non-accrual with no credit loss allowance | 3,170 | 927 |
Consumer Loan [Member] | ||
Non Accrual Loans Segregated By Class Of Loans [Line Items] | ||
Non-accrual loans | 0 | 0 |
Non-accrual with no credit loss allowance | $ 0 | $ 0 |
Loans Loans - Non-Accrual Loans
Loans Loans - Non-Accrual Loans, Segregated by Class of Loans and Year of Origination (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Loans and Leases Receivable Disclosure [Line Items] | ||
Non-accrual loans | $ 67,781 | $ 37,833 |
Nonperforming Financial Instruments [Member] | ||
Loans and Leases Receivable Disclosure [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | 12,248 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 8 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 517 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 19,180 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 8,259 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 4,912 | |
Financing Receivable, Revolving | 21,578 | |
Financing Receivable, Revolving, Converted to Term Loan | 1,079 | |
Commercial Portfolio Segment [Member] | ||
Loans and Leases Receivable Disclosure [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | 1,145,305 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 941,744 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 561,695 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 420,405 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 211,653 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 258,011 | |
Financing Receivable, Revolving | 2,122,788 | |
Non-accrual loans | 22,217 | 18,130 |
Commercial Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] | ||
Loans and Leases Receivable Disclosure [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 221 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 754 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 2,957 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,172 | |
Financing Receivable, Revolving | 16,746 | |
Financing Receivable, Revolving, Converted to Term Loan | 367 | |
Commercial and Industrial Total Energy Loans [Member] | ||
Loans and Leases Receivable Disclosure [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | 311,743 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 70,287 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 83,419 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 4,469 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 7,643 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 6,089 | |
Financing Receivable, Revolving | 466,945 | |
Non-accrual loans | 16,712 | 15,224 |
Commercial and Industrial Total Energy Loans [Member] | Nonperforming Financial Instruments [Member] | ||
Loans and Leases Receivable Disclosure [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | 10,324 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 59 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,349 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 2 | |
Financing Receivable, Revolving | 4,832 | |
Financing Receivable, Revolving, Converted to Term Loan | 146 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Loans and Leases Receivable Disclosure [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | 718,176 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,786,515 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,488,642 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 923,237 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 644,069 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,101,800 | |
Financing Receivable, Revolving | 155,033 | |
Non-accrual loans | 25,682 | 3,552 |
Commercial Real Estate Buildings Land And Other Loans [Member] | Nonperforming Financial Instruments [Member] | ||
Loans and Leases Receivable Disclosure [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | 1,924 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 8 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 296 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 18,328 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,483 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 3,643 | |
Financing Receivable, Revolving | 0 | |
Financing Receivable, Revolving, Converted to Term Loan | 0 | |
Construction Loans [Member] | ||
Loans and Leases Receivable Disclosure [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | 299,297 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 570,101 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 352,871 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 51,647 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 945 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,666 | |
Financing Receivable, Revolving | 191,544 | |
Non-accrual loans | 0 | 0 |
Construction Loans [Member] | Nonperforming Financial Instruments [Member] | ||
Loans and Leases Receivable Disclosure [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | |
Financing Receivable, Revolving | 0 | |
Financing Receivable, Revolving, Converted to Term Loan | 0 | |
Total consumer real estate loans [Member] | ||
Loans and Leases Receivable Disclosure [Line Items] | ||
Non-accrual loans | 3,170 | 927 |
Total consumer real estate loans [Member] | Nonperforming Financial Instruments [Member] | ||
Loans and Leases Receivable Disclosure [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 39 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 2,470 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 95 | |
Financing Receivable, Revolving | 0 | |
Financing Receivable, Revolving, Converted to Term Loan | 566 | |
Consumer Loan [Member] | ||
Loans and Leases Receivable Disclosure [Line Items] | ||
Non-accrual loans | 0 | $ 0 |
Consumer Loan [Member] | Nonperforming Financial Instruments [Member] | ||
Loans and Leases Receivable Disclosure [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | |
Financing Receivable, Revolving | 0 | |
Financing Receivable, Revolving, Converted to Term Loan | $ 0 |
Loans - Age Analysis of Past Du
Loans - Age Analysis of Past Due Loans, Segregated by Class of Loans (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Financing Receivable, Past Due [Line Items] | ||
Total loans | $ 17,746,311 | $ 17,154,969 |
Accruing Loans 90 or More Days Past Due | 11,811 | |
Commercial Portfolio Segment [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Total loans | 5,726,804 | 5,674,798 |
Accruing Loans 90 or More Days Past Due | 3,025 | |
Commercial and Industrial Total Energy Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Total loans | 986,571 | 925,729 |
Accruing Loans 90 or More Days Past Due | 0 | |
Paycheck Protection Program [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Total loans | 22,333 | 34,852 |
Accruing Loans 90 or More Days Past Due | 2,725 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Total loans | 6,924,896 | 6,706,078 |
Accruing Loans 90 or More Days Past Due | 568 | |
Construction Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Total loans | 1,468,071 | 1,477,247 |
Accruing Loans 90 or More Days Past Due | 118 | |
Total consumer real estate loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Total loans | 2,157,916 | 1,843,539 |
Accruing Loans 90 or More Days Past Due | 5,039 | |
Consumer Loan [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Total loans | 459,720 | $ 492,726 |
Accruing Loans 90 or More Days Past Due | 336 | |
Financing Receivables, 30 to 89 Days Past Due [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 74,803 | |
Financing Receivables, 30 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 29,280 | |
Financing Receivables, 30 to 89 Days Past Due [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 2,224 | |
Financing Receivables, 30 to 89 Days Past Due [Member] | Paycheck Protection Program [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 80 | |
Financing Receivables, 30 to 89 Days Past Due [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 28,554 | |
Financing Receivables, 30 to 89 Days Past Due [Member] | Construction Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 669 | |
Financing Receivables, 30 to 89 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 8,843 | |
Financing Receivables, 30 to 89 Days Past Due [Member] | Consumer Loan [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 5,153 | |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 42,925 | |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 5,224 | |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 6,386 | |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Paycheck Protection Program [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 2,725 | |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 20,022 | |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 118 | |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 8,114 | |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Loan [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 336 | |
Financial Asset, Past Due | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 117,728 | |
Financial Asset, Past Due | Commercial Portfolio Segment [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 34,504 | |
Financial Asset, Past Due | Commercial and Industrial Total Energy Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 8,610 | |
Financial Asset, Past Due | Paycheck Protection Program [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 2,805 | |
Financial Asset, Past Due | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 48,576 | |
Financial Asset, Past Due | Construction Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 787 | |
Financial Asset, Past Due | Total consumer real estate loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 16,957 | |
Financial Asset, Past Due | Consumer Loan [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 5,489 | |
Financial Asset, Not Past Due | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 17,628,583 | |
Financial Asset, Not Past Due | Commercial Portfolio Segment [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 5,692,300 | |
Financial Asset, Not Past Due | Commercial and Industrial Total Energy Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 977,961 | |
Financial Asset, Not Past Due | Paycheck Protection Program [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 19,528 | |
Financial Asset, Not Past Due | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 6,876,320 | |
Financial Asset, Not Past Due | Construction Loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 1,467,284 | |
Financial Asset, Not Past Due | Total consumer real estate loans [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 2,140,959 | |
Financial Asset, Not Past Due | Consumer Loan [Member] | ||
Financing Receivable, Past Due [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | $ 454,231 |
Loans - Loan Modification (Deta
Loans - Loan Modification (Details) - USD ($) $ in Thousands | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022 | |
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | $ 17,746,311 | $ 17,154,969 | |
Payment Deferral | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | $ 0 | $ 1,116 | |
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 0% | 0% | |
Combination: Payment Delay and Term Extention | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | $ 36,486 | $ 0 | |
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 0.20% | 0% | |
Commercial Portfolio Segment [Member] | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | $ 5,726,804 | 5,674,798 | |
Commercial Portfolio Segment [Member] | Payment Deferral | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | $ 0 | ||
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 0% | ||
Commercial Portfolio Segment [Member] | Combination: Payment Delay and Term Extention | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | $ 16,020 | ||
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 0.30% | ||
Commercial Real Estate Buildings Land And Other Loans [Member] | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | $ 6,924,896 | $ 6,706,078 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | Payment Deferral | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | $ 0 | $ 1,116 | |
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 0% | 0% | |
Commercial Real Estate Buildings Land And Other Loans [Member] | Combination: Payment Delay and Term Extention | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | $ 20,466 | $ 0 | |
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 0.30% | 0% |
Loans - Financing Receivables,
Loans - Financing Receivables, Modified Loans Past Due in Excess of 90 Days or on Non-Accrual Status at Period-End (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 | Jun. 30, 2022 |
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | $ 17,746,311 | $ 17,154,969 | |
Payment Deferral | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 0 | $ 1,116 | |
Payment Deferral | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 0 | 1,116 | |
Combination: Payment Delay and Term Extention | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 36,486 | 0 | |
Combination: Payment Delay and Term Extention | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 36,486 | 0 | |
Extended Maturity | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 0 | 0 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 6,924,896 | 6,706,078 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | Payment Deferral | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 0 | 1,116 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | Payment Deferral | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 0 | 1,116 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | Payment Deferral | Charge-offs | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 0 | 371 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | Payment Deferral | Proceeds from sales | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 0 | 0 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | Combination: Payment Delay and Term Extention | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 20,466 | 0 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | Combination: Payment Delay and Term Extention | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 20,466 | 0 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | Combination: Payment Delay and Term Extention | Charge-offs | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 0 | 352 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | Combination: Payment Delay and Term Extention | Proceeds from sales | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 0 | 1,070 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | Extended Maturity | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 0 | 0 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | Extended Maturity | Charge-offs | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 0 | 0 | |
Commercial Real Estate Buildings Land And Other Loans [Member] | Extended Maturity | Proceeds from sales | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 0 | 0 | |
Commercial and Industrial Total Energy Loans [Member] | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 986,571 | 925,729 | |
Commercial Portfolio Segment [Member] | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 5,726,804 | $ 5,674,798 | |
Commercial Portfolio Segment [Member] | Payment Deferral | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 0 | ||
Commercial Portfolio Segment [Member] | Payment Deferral | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 0 | 0 | |
Commercial Portfolio Segment [Member] | Combination: Payment Delay and Term Extention | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 16,020 | ||
Commercial Portfolio Segment [Member] | Combination: Payment Delay and Term Extention | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | 16,020 | 0 | |
Commercial Portfolio Segment [Member] | Extended Maturity | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | |||
Financing Receivable, Troubled Debt Restructuring [Line Items] | |||
Loans, net of unearned discounts | $ 0 | $ 0 |
Loans Loans - Weighted Average
Loans Loans - Weighted Average Risk Grade for All Commercial Loans by Class and Year of Origination (Details) $ in Thousands | Jun. 30, 2023 USD ($) Grade | Dec. 31, 2022 USD ($) Grade |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | $ 17,746,311 | $ 17,154,969 |
Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | 1,145,305 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 941,744 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 561,695 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 420,405 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 211,653 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 258,011 | |
Financing Receivable, Revolving | 2,122,788 | |
Loans and Leases Receivable, Net of Deferred Income | $ 5,726,804 | $ 5,674,798 |
Weighted Average Risk Grade For Loans | Grade | 6.46 | 6.39 |
Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 311,743 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 70,287 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 83,419 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 4,469 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 7,643 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 6,089 | |
Financing Receivable, Revolving | 466,945 | |
Loans and Leases Receivable, Net of Deferred Income | $ 986,571 | $ 925,729 |
Weighted Average Risk Grade For Loans | Grade | 5.96 | 5.67 |
Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 718,176 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,786,515 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,488,642 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 923,237 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 644,069 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,101,800 | |
Financing Receivable, Revolving | 155,033 | |
Loans and Leases Receivable, Net of Deferred Income | $ 6,924,896 | $ 6,706,078 |
Weighted Average Risk Grade For Loans | Grade | 7.14 | 7.09 |
Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 299,297 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 570,101 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 352,871 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 51,647 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 945 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,666 | |
Financing Receivable, Revolving | 191,544 | |
Loans and Leases Receivable, Net of Deferred Income | $ 1,468,071 | $ 1,477,247 |
Weighted Average Risk Grade For Loans | Grade | 7.38 | 7.12 |
Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 1,017,473 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 2,356,616 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,841,513 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 974,884 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 645,014 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,103,466 | |
Financing Receivable, Revolving | 346,577 | |
Loans and Leases Receivable, Net of Deferred Income | $ 8,392,967 | $ 8,183,325 |
Weighted Average Risk Grade For Loans | Grade | 7.18 | 7.10 |
Risk Grade One To Eight [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 1,113,216 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 919,731 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 524,735 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 406,763 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 186,103 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 243,703 | |
Financing Receivable, Revolving | 2,026,310 | |
Loans and Leases Receivable, Net of Deferred Income | $ 5,468,565 | $ 5,435,917 |
Weighted Average Risk Grade For Loans | Grade | 6.29 | 6.24 |
Risk Grade One To Eight [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 301,108 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 65,831 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 83,174 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 4,240 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 2,393 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 5,297 | |
Financing Receivable, Revolving | 457,225 | |
Loans and Leases Receivable, Net of Deferred Income | $ 953,126 | $ 887,182 |
Weighted Average Risk Grade For Loans | Grade | 5.79 | 5.44 |
Risk Grade One To Eight [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 699,039 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,735,438 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,421,130 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 851,503 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 570,561 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,009,089 | |
Financing Receivable, Revolving | 150,060 | |
Loans and Leases Receivable, Net of Deferred Income | $ 6,540,008 | $ 6,340,028 |
Weighted Average Risk Grade For Loans | Grade | 6.97 | 6.94 |
Risk Grade One To Eight [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 271,025 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 523,461 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 342,339 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 49,547 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 945 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,666 | |
Financing Receivable, Revolving | 179,127 | |
Loans and Leases Receivable, Net of Deferred Income | $ 1,368,110 | $ 1,430,012 |
Weighted Average Risk Grade For Loans | Grade | 7.19 | 7.04 |
Risk Grade One To Eight [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | $ 7,770,040 | |
Weighted Average Risk Grade For Loans | Grade | 6.96 | |
Risk Grade Nine [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 17,610 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 17,339 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 32,116 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 3,745 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 2,307 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 10,869 | |
Financing Receivable, Revolving | 40,715 | |
Loans and Leases Receivable, Net of Deferred Income | $ 129,904 | $ 146,192 |
Weighted Average Risk Grade For Loans | Grade | 9 | 9 |
Risk Grade Nine [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 311 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 4,456 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 139 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 445 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 589 | |
Financing Receivable, Revolving | 3,603 | |
Loans and Leases Receivable, Net of Deferred Income | $ 11,515 | $ 11,112 |
Weighted Average Risk Grade For Loans | Grade | 9 | 9 |
Risk Grade Nine [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 9,069 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 15,323 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 10,729 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 40,843 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 70,271 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 27,324 | |
Financing Receivable, Revolving | 1,980 | |
Loans and Leases Receivable, Net of Deferred Income | $ 176,753 | $ 189,928 |
Weighted Average Risk Grade For Loans | Grade | 9 | 9 |
Risk Grade Nine [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 9,975 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 14,668 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 3,067 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 2,100 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | |
Financing Receivable, Revolving | 3,291 | |
Loans and Leases Receivable, Net of Deferred Income | $ 33,101 | $ 34,952 |
Weighted Average Risk Grade For Loans | Grade | 9 | 9 |
Risk Grade Nine [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | $ 224,880 | |
Weighted Average Risk Grade For Loans | Grade | 9 | |
Risk Grade Ten [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 9,988 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 510 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 622 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 396 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 4,165 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 744 | |
Financing Receivable, Revolving | 19,268 | |
Loans and Leases Receivable, Net of Deferred Income | $ 36,257 | $ 37,596 |
Weighted Average Risk Grade For Loans | Grade | 10 | 10 |
Risk Grade Ten [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 355 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 189 | |
Financing Receivable, Revolving | 0 | |
Loans and Leases Receivable, Net of Deferred Income | $ 544 | $ 642 |
Weighted Average Risk Grade For Loans | Grade | 10 | 10 |
Risk Grade Ten [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 491 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 29,583 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 7,991 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 4,086 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,754 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 3,796 | |
Financing Receivable, Revolving | 0 | |
Loans and Leases Receivable, Net of Deferred Income | $ 50,347 | $ 91,020 |
Weighted Average Risk Grade For Loans | Grade | 10 | 10 |
Risk Grade Ten [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 18,297 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 7,347 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | |
Financing Receivable, Revolving | 9,126 | |
Loans and Leases Receivable, Net of Deferred Income | $ 34,770 | $ 931 |
Weighted Average Risk Grade For Loans | Grade | 10 | 10 |
Risk Grade Ten [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | $ 91,951 | |
Weighted Average Risk Grade For Loans | Grade | 10 | |
Risk Grade Eleven [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 4,491 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 4,164 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 4,001 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 8,747 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 16,121 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,523 | |
Financing Receivable, Revolving | 19,749 | |
Loans and Leases Receivable, Net of Deferred Income | $ 69,861 | $ 36,963 |
Weighted Average Risk Grade For Loans | Grade | 11 | 11 |
Risk Grade Eleven [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 106 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 170 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 3,101 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 12 | |
Financing Receivable, Revolving | 1,285 | |
Loans and Leases Receivable, Net of Deferred Income | $ 4,674 | $ 11,569 |
Weighted Average Risk Grade For Loans | Grade | 11 | 11 |
Risk Grade Eleven [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 7,653 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 6,163 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 48,496 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 8,477 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 57,948 | |
Financing Receivable, Revolving | 2,993 | |
Loans and Leases Receivable, Net of Deferred Income | $ 132,106 | $ 81,550 |
Weighted Average Risk Grade For Loans | Grade | 11 | 11 |
Risk Grade Eleven [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 31,972 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 118 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | |
Financing Receivable, Revolving | 0 | |
Loans and Leases Receivable, Net of Deferred Income | $ 32,090 | $ 11,352 |
Weighted Average Risk Grade For Loans | Grade | 11 | 11 |
Risk Grade Eleven [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | $ 92,902 | |
Weighted Average Risk Grade For Loans | Grade | 11 | |
Risk Grade Twelve [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 221 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 702 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 2,687 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,172 | |
Financing Receivable, Revolving | 14,607 | |
Loans and Leases Receivable, Net of Deferred Income | $ 19,756 | $ 12,521 |
Weighted Average Risk Grade For Loans | Grade | 12 | 12 |
Risk Grade Twelve [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 10,324 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 59 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,349 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 2 | |
Financing Receivable, Revolving | 2,132 | |
Loans and Leases Receivable, Net of Deferred Income | $ 14,012 | $ 10,840 |
Weighted Average Risk Grade For Loans | Grade | 12 | 12 |
Risk Grade Twelve [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 1,924 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 8 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 296 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 17,178 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,483 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 3,493 | |
Financing Receivable, Revolving | 0 | |
Loans and Leases Receivable, Net of Deferred Income | $ 24,382 | $ 2,957 |
Weighted Average Risk Grade For Loans | Grade | 12 | 12 |
Risk Grade Twelve [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | |
Financing Receivable, Revolving | 0 | |
Loans and Leases Receivable, Net of Deferred Income | $ 0 | $ 0 |
Weighted Average Risk Grade For Loans | Grade | 12 | 12 |
Risk Grade Twelve [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | $ 2,957 | |
Weighted Average Risk Grade For Loans | Grade | 12 | |
Risk Grade Thirteen [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 52 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 270 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | |
Financing Receivable, Revolving | 2,139 | |
Loans and Leases Receivable, Net of Deferred Income | $ 2,461 | $ 5,609 |
Weighted Average Risk Grade For Loans | Grade | 13 | 13 |
Risk Grade Thirteen [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | |
Financing Receivable, Revolving | 2,700 | |
Loans and Leases Receivable, Net of Deferred Income | $ 2,700 | $ 4,384 |
Weighted Average Risk Grade For Loans | Grade | 13 | 13 |
Risk Grade Thirteen [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 1,150 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 150 | |
Financing Receivable, Revolving | 0 | |
Loans and Leases Receivable, Net of Deferred Income | $ 1,300 | $ 595 |
Weighted Average Risk Grade For Loans | Grade | 13 | 13 |
Risk Grade Thirteen [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 | |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | |
Financing Receivable, Revolving | 0 | |
Loans and Leases Receivable, Net of Deferred Income | $ 0 | $ 0 |
Weighted Average Risk Grade For Loans | Grade | 13 | 13 |
Risk Grade Thirteen [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | $ 595 | |
Weighted Average Risk Grade For Loans | Grade | 13 | |
Revolving Credit Facility [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 6.31 | |
Revolving Credit Facility [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 5.58 | |
Revolving Credit Facility [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.13 | |
Revolving Credit Facility [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.65 | |
Revolving Credit Facility [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.41 | |
Revolving Loans Converted to Term [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | $ 65,203 | |
Weighted Average Risk Grade For Loans | Grade | 7.66 | |
Revolving Loans Converted to Term [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | $ 35,976 | |
Weighted Average Risk Grade For Loans | Grade | 5.69 | |
Revolving Loans Converted to Term [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | $ 107,424 | |
Weighted Average Risk Grade For Loans | Grade | 6.50 | |
Revolving Loans Converted to Term [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | $ 0 | |
Weighted Average Risk Grade For Loans | Grade | 0 | |
Revolving Loans Converted to Term [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | $ 107,424 | |
Weighted Average Risk Grade For Loans | Grade | 6.50 | |
Revolving Loans Converted to Term [Member] | Risk Grade One To Eight [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | $ 48,004 | |
Revolving Loans Converted to Term [Member] | Risk Grade One To Eight [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 33,858 | |
Revolving Loans Converted to Term [Member] | Risk Grade One To Eight [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 103,188 | |
Revolving Loans Converted to Term [Member] | Risk Grade One To Eight [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | |
Revolving Loans Converted to Term [Member] | Risk Grade Nine [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 5,203 | |
Revolving Loans Converted to Term [Member] | Risk Grade Nine [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 1,972 | |
Revolving Loans Converted to Term [Member] | Risk Grade Nine [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 1,214 | |
Revolving Loans Converted to Term [Member] | Risk Grade Nine [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | |
Revolving Loans Converted to Term [Member] | Risk Grade Ten [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 564 | |
Revolving Loans Converted to Term [Member] | Risk Grade Ten [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | |
Revolving Loans Converted to Term [Member] | Risk Grade Ten [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 2,646 | |
Revolving Loans Converted to Term [Member] | Risk Grade Ten [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | |
Revolving Loans Converted to Term [Member] | Risk Grade Eleven [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 11,065 | |
Revolving Loans Converted to Term [Member] | Risk Grade Eleven [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | |
Revolving Loans Converted to Term [Member] | Risk Grade Eleven [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 376 | |
Revolving Loans Converted to Term [Member] | Risk Grade Eleven [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | |
Revolving Loans Converted to Term [Member] | Risk Grade Twelve [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 367 | |
Revolving Loans Converted to Term [Member] | Risk Grade Twelve [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 146 | |
Revolving Loans Converted to Term [Member] | Risk Grade Twelve [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | |
Revolving Loans Converted to Term [Member] | Risk Grade Twelve [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | |
Revolving Loans Converted to Term [Member] | Risk Grade Thirteen [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | |
Revolving Loans Converted to Term [Member] | Risk Grade Thirteen [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | |
Revolving Loans Converted to Term [Member] | Risk Grade Thirteen [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | |
Revolving Loans Converted to Term [Member] | Risk Grade Thirteen [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, Revolving, Converted to Term Loan | $ 0 | |
2023 [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 6.31 | |
2023 [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 6.32 | |
2023 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.10 | |
2023 [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.68 | |
2023 [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.27 | |
2022 [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 6.76 | |
2022 [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 6.60 | |
2022 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.05 | |
2022 [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.39 | |
2022 [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.13 | |
2021 [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.10 | |
2021 [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 5.78 | |
2021 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.28 | |
2021 [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.39 | |
2021 [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.30 | |
2020 [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 5.93 | |
2020 [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.68 | |
2020 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.22 | |
2020 [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 4.63 | |
2020 [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.09 | |
2019 [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 6.57 | |
2019 [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 9.83 | |
2019 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.02 | |
2019 [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.07 | |
2019 [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.02 | |
Prior Years [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 6.17 | |
Prior Years [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.14 | |
Prior Years [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.17 | |
Prior Years [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 6.77 | |
Prior Years [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade For Loans | Grade | 7.17 |
Loans - Weighted Average Risk G
Loans - Weighted Average Risk Grades for All Commercial Loans by Class (Detail) $ in Thousands | Jun. 30, 2023 USD ($) Grade | Dec. 31, 2022 USD ($) Grade |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | $ 17,746,311 | $ 17,154,969 |
Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 6.46 | 6.39 |
Loans and Leases Receivable, Net of Deferred Income | $ 5,726,804 | $ 5,674,798 |
Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 5.96 | 5.67 |
Loans and Leases Receivable, Net of Deferred Income | $ 986,571 | $ 925,729 |
Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 7.14 | 7.09 |
Loans and Leases Receivable, Net of Deferred Income | $ 6,924,896 | $ 6,706,078 |
Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 7.38 | 7.12 |
Loans and Leases Receivable, Net of Deferred Income | $ 1,468,071 | $ 1,477,247 |
Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 7.18 | 7.10 |
Loans and Leases Receivable, Net of Deferred Income | $ 8,392,967 | $ 8,183,325 |
Risk Grade One To Eight [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 6.29 | 6.24 |
Loans and Leases Receivable, Net of Deferred Income | $ 5,468,565 | $ 5,435,917 |
Risk Grade One To Eight [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 5.79 | 5.44 |
Loans and Leases Receivable, Net of Deferred Income | $ 953,126 | $ 887,182 |
Risk Grade One To Eight [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 6.97 | 6.94 |
Loans and Leases Receivable, Net of Deferred Income | $ 6,540,008 | $ 6,340,028 |
Risk Grade One To Eight [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 7.19 | 7.04 |
Loans and Leases Receivable, Net of Deferred Income | $ 1,368,110 | $ 1,430,012 |
Risk Grade One To Eight [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 6.96 | |
Loans and Leases Receivable, Net of Deferred Income | $ 7,770,040 | |
Risk Grade Nine [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 9 | 9 |
Loans and Leases Receivable, Net of Deferred Income | $ 129,904 | $ 146,192 |
Risk Grade Nine [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 9 | 9 |
Loans and Leases Receivable, Net of Deferred Income | $ 11,515 | $ 11,112 |
Risk Grade Nine [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 9 | 9 |
Loans and Leases Receivable, Net of Deferred Income | $ 176,753 | $ 189,928 |
Risk Grade Nine [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 9 | 9 |
Loans and Leases Receivable, Net of Deferred Income | $ 33,101 | $ 34,952 |
Risk Grade Nine [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 9 | |
Loans and Leases Receivable, Net of Deferred Income | $ 224,880 | |
Risk Grade Ten [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 10 | 10 |
Loans and Leases Receivable, Net of Deferred Income | $ 36,257 | $ 37,596 |
Risk Grade Ten [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 10 | 10 |
Loans and Leases Receivable, Net of Deferred Income | $ 544 | $ 642 |
Risk Grade Ten [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 10 | 10 |
Loans and Leases Receivable, Net of Deferred Income | $ 50,347 | $ 91,020 |
Risk Grade Ten [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 10 | 10 |
Loans and Leases Receivable, Net of Deferred Income | $ 34,770 | $ 931 |
Risk Grade Ten [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 10 | |
Loans and Leases Receivable, Net of Deferred Income | $ 91,951 | |
Risk Grade Eleven [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 11 | 11 |
Loans and Leases Receivable, Net of Deferred Income | $ 69,861 | $ 36,963 |
Risk Grade Eleven [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 11 | 11 |
Loans and Leases Receivable, Net of Deferred Income | $ 4,674 | $ 11,569 |
Risk Grade Eleven [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 11 | 11 |
Loans and Leases Receivable, Net of Deferred Income | $ 132,106 | $ 81,550 |
Risk Grade Eleven [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 11 | 11 |
Loans and Leases Receivable, Net of Deferred Income | $ 32,090 | $ 11,352 |
Risk Grade Eleven [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 11 | |
Loans and Leases Receivable, Net of Deferred Income | $ 92,902 | |
Risk Grade Twelve [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 12 | 12 |
Loans and Leases Receivable, Net of Deferred Income | $ 19,756 | $ 12,521 |
Risk Grade Twelve [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 12 | 12 |
Loans and Leases Receivable, Net of Deferred Income | $ 14,012 | $ 10,840 |
Risk Grade Twelve [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 12 | 12 |
Loans and Leases Receivable, Net of Deferred Income | $ 24,382 | $ 2,957 |
Risk Grade Twelve [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 12 | 12 |
Loans and Leases Receivable, Net of Deferred Income | $ 0 | $ 0 |
Risk Grade Twelve [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 12 | |
Loans and Leases Receivable, Net of Deferred Income | $ 2,957 | |
Risk Grade Thirteen [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 13 | 13 |
Loans and Leases Receivable, Net of Deferred Income | $ 2,461 | $ 5,609 |
Risk Grade Thirteen [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 13 | 13 |
Loans and Leases Receivable, Net of Deferred Income | $ 2,700 | $ 4,384 |
Risk Grade Thirteen [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 13 | 13 |
Loans and Leases Receivable, Net of Deferred Income | $ 1,300 | $ 595 |
Risk Grade Thirteen [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 13 | 13 |
Loans and Leases Receivable, Net of Deferred Income | $ 0 | $ 0 |
Risk Grade Thirteen [Member] | Commercial Real Estate Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Weighted Average Risk Grade | Grade | 13 | |
Loans and Leases Receivable, Net of Deferred Income | $ 595 |
Loans Loans - Age Analysis of P
Loans Loans - Age Analysis of Past Due Consumer Loans,Segregated by Class and Year of Origination (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | $ 17,746,311 | $ 17,154,969 |
Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 2,157,916 | 1,843,539 |
Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 459,720 | $ 492,726 |
Financing Receivables, 30 to 89 Days Past Due [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 74,803 | |
Financing Receivables, 30 to 89 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 8,843 | |
Financing Receivables, 30 to 89 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 5,153 | |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 42,925 | |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 8,114 | |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 336 | |
Financial Asset, Past Due | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 117,728 | |
Financial Asset, Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 16,957 | |
Financial Asset, Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 5,489 | |
Financial Asset, Not Past Due | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 17,628,583 | |
Financial Asset, Not Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 2,140,959 | |
Financial Asset, Not Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 454,231 | |
Revolving Credit Facility [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 718,304 | |
Revolving Credit Facility [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 323,158 | |
Revolving Credit Facility [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 3,861 | |
Revolving Credit Facility [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 2,226 | |
Revolving Credit Facility [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 523 | |
Revolving Credit Facility [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 212 | |
Revolving Credit Facility [Member] | Financial Asset, Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 4,384 | |
Revolving Credit Facility [Member] | Financial Asset, Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 2,438 | |
Revolving Credit Facility [Member] | Financial Asset, Not Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 713,920 | |
Revolving Credit Facility [Member] | Financial Asset, Not Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 320,720 | |
Revolving Loans Converted to Term [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 12,533 | |
Revolving Loans Converted to Term [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 22,513 | |
Revolving Loans Converted to Term [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 234 | |
Revolving Loans Converted to Term [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 148 | |
Revolving Loans Converted to Term [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 3,641 | |
Revolving Loans Converted to Term [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 5 | |
Revolving Loans Converted to Term [Member] | Financial Asset, Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 3,875 | |
Revolving Loans Converted to Term [Member] | Financial Asset, Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 153 | |
Revolving Loans Converted to Term [Member] | Financial Asset, Not Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 8,658 | |
Revolving Loans Converted to Term [Member] | Financial Asset, Not Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 22,360 | |
2023 [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 284,695 | |
2023 [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 51,828 | |
2023 [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 297 | |
2023 [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 2,202 | |
2023 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 0 | |
2023 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 84 | |
2023 [Member] | Financial Asset, Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 297 | |
2023 [Member] | Financial Asset, Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 2,286 | |
2023 [Member] | Financial Asset, Not Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 284,398 | |
2023 [Member] | Financial Asset, Not Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 49,542 | |
2022 [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 439,830 | |
2022 [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 39,483 | |
2022 [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 1,126 | |
2022 [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 316 | |
2022 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 95 | |
2022 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 34 | |
2022 [Member] | Financial Asset, Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 1,221 | |
2022 [Member] | Financial Asset, Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 350 | |
2022 [Member] | Financial Asset, Not Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 438,609 | |
2022 [Member] | Financial Asset, Not Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 39,133 | |
2021 [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 301,610 | |
2021 [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 13,930 | |
2021 [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 1,075 | |
2021 [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 158 | |
2021 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 172 | |
2021 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 1 | |
2021 [Member] | Financial Asset, Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 1,247 | |
2021 [Member] | Financial Asset, Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 159 | |
2021 [Member] | Financial Asset, Not Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 300,363 | |
2021 [Member] | Financial Asset, Not Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 13,771 | |
2020 [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 183,144 | |
2020 [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 4,832 | |
2020 [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 236 | |
2020 [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 12 | |
2020 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 63 | |
2020 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 0 | |
2020 [Member] | Financial Asset, Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 299 | |
2020 [Member] | Financial Asset, Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 12 | |
2020 [Member] | Financial Asset, Not Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 182,845 | |
2020 [Member] | Financial Asset, Not Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 4,820 | |
2019 [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 65,049 | |
2019 [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 2,027 | |
2019 [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 480 | |
2019 [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 42 | |
2019 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 2,539 | |
2019 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 0 | |
2019 [Member] | Financial Asset, Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 3,019 | |
2019 [Member] | Financial Asset, Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 42 | |
2019 [Member] | Financial Asset, Not Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 62,030 | |
2019 [Member] | Financial Asset, Not Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 1,985 | |
Prior Years [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 152,751 | |
Prior Years [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 1,949 | |
Prior Years [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 1,534 | |
Prior Years [Member] | Financing Receivables, 30 to 89 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 49 | |
Prior Years [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 1,081 | |
Prior Years [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 0 | |
Prior Years [Member] | Financial Asset, Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 2,615 | |
Prior Years [Member] | Financial Asset, Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 49 | |
Prior Years [Member] | Financial Asset, Not Past Due | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | 150,136 | |
Prior Years [Member] | Financial Asset, Not Past Due | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Financing Receivable, before Allowance for Credit Loss | $ 1,900 |
Loans Loans - Revolving Loans C
Loans Loans - Revolving Loans Converted to Term (Details) - Revolving Loans Converted to Term [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Remaining Revolving Loans Converted to Term During Period | $ 12,512 | $ 30,139 | $ 28,531 | $ 44,746 |
Commercial Portfolio Segment [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Remaining Revolving Loans Converted to Term During Period | 3,835 | 16,518 | 14,606 | 21,973 |
Commercial and Industrial Total Energy Loans [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Remaining Revolving Loans Converted to Term During Period | 0 | 247 | 2,567 | 247 |
Commercial Real Estate Buildings Land And Other Loans [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Remaining Revolving Loans Converted to Term During Period | 5,944 | 10,681 | 5,944 | 10,726 |
Construction Loans [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Remaining Revolving Loans Converted to Term During Period | 0 | 13 | 0 | 4,248 |
Total consumer real estate loans [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Remaining Revolving Loans Converted to Term During Period | 1,064 | 888 | 1,743 | 1,684 |
Consumer Loan [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Remaining Revolving Loans Converted to Term During Period | $ 1,669 | $ 1,792 | $ 3,671 | $ 5,868 |
Loans Loans - Allowance for C_2
Loans Loans - Allowance for Credit Loss By Loan Class Calculated in Accordance With CECL Methodology (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 |
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | $ 233,619 | $ 227,621 | ||||
Commercial Portfolio Segment [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 75,166 | $ 78,465 | 104,237 | $ 87,270 | $ 87,026 | $ 72,091 |
Commercial and Industrial Total Energy Loans [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 14,929 | 19,191 | 18,062 | 16,267 | 15,422 | 17,217 |
Commercial Real Estate Portfolio Segment [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 120,926 | 115,693 | 90,301 | 117,106 | 128,954 | 144,936 |
Total consumer real estate loans [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 13,035 | 9,708 | 8,004 | 6,854 | 6,359 | 6,585 |
Consumer Loan [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 9,563 | 8,457 | 7,017 | 12,135 | 9,074 | 7,837 |
Loans Receivable [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 233,619 | $ 231,514 | 227,621 | $ 239,632 | $ 246,835 | $ 248,666 |
Modeled Expected Credit Losses [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 85,769 | 110,292 | ||||
Modeled Expected Credit Losses [Member] | Commercial Portfolio Segment [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 46,435 | 61,918 | ||||
Modeled Expected Credit Losses [Member] | Commercial and Industrial Total Energy Loans [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 5,733 | 8,531 | ||||
Modeled Expected Credit Losses [Member] | Commercial Real Estate Portfolio Segment [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 15,496 | 27,013 | ||||
Modeled Expected Credit Losses [Member] | Total consumer real estate loans [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 12,594 | 7,847 | ||||
Modeled Expected Credit Losses [Member] | Consumer Loan [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 5,511 | 4,983 | ||||
Q-factor adjustments [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 141,389 | 105,148 | ||||
Q-factor adjustments [Member] | Commercial Portfolio Segment [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 26,270 | 36,237 | ||||
Q-factor adjustments [Member] | Commercial and Industrial Total Energy Loans [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 6,496 | 5,148 | ||||
Q-factor adjustments [Member] | Commercial Real Estate Portfolio Segment [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 104,130 | 61,572 | ||||
Q-factor adjustments [Member] | Total consumer real estate loans [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 441 | 157 | ||||
Q-factor adjustments [Member] | Consumer Loan [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 4,052 | 2,034 | ||||
Specific Valuation Allowances [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 6,461 | 12,181 | ||||
Specific Valuation Allowances [Member] | Commercial Portfolio Segment [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 2,461 | 6,082 | ||||
Specific Valuation Allowances [Member] | Commercial and Industrial Total Energy Loans [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 2,700 | 4,383 | ||||
Specific Valuation Allowances [Member] | Commercial Real Estate Portfolio Segment [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 1,300 | 1,716 | ||||
Specific Valuation Allowances [Member] | Total consumer real estate loans [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | 0 | 0 | ||||
Specific Valuation Allowances [Member] | Consumer Loan [Member] | ||||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||||
Financing Receivable, Allowance for Credit Loss | $ 0 | $ 0 |
Loans - Activity in the Allowan
Loans - Activity in the Allowance for Credit Losses on Loans by Portfolio Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Beginning balance | $ 227,621 | |||
Ending balance | $ 233,619 | 233,619 | ||
Commercial Portfolio Segment [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Beginning balance | 78,465 | $ 87,026 | 104,237 | $ 72,091 |
Credit loss, expense (reversal) | 2,404 | 942 | (18,280) | 18,503 |
Charge-offs | (7,136) | (1,891) | (13,316) | (5,346) |
Recoveries | 1,433 | 1,193 | 2,525 | 2,022 |
Net charge-offs | (5,703) | (698) | (10,791) | (3,324) |
Ending balance | 75,166 | 87,270 | 75,166 | 87,270 |
Commercial and Industrial Total Energy Loans [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Beginning balance | 19,191 | 15,422 | 18,062 | 17,217 |
Credit loss, expense (reversal) | (4,433) | 427 | (3,467) | (1,617) |
Charge-offs | (518) | 0 | (518) | (371) |
Recoveries | 689 | 418 | 852 | 1,038 |
Net charge-offs | 171 | 418 | 334 | 667 |
Ending balance | 14,929 | 16,267 | 14,929 | 16,267 |
Commercial Real Estate Portfolio Segment [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Beginning balance | 115,693 | 128,954 | 90,301 | 144,936 |
Credit loss, expense (reversal) | 5,133 | (12,232) | 30,494 | (27,841) |
Charge-offs | 0 | 0 | 0 | (702) |
Recoveries | 100 | 384 | 131 | 713 |
Net charge-offs | 100 | 384 | 131 | 11 |
Ending balance | 120,926 | 117,106 | 120,926 | 117,106 |
Total consumer real estate loans [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Beginning balance | 9,708 | 6,359 | 8,004 | 6,585 |
Credit loss, expense (reversal) | 3,822 | 583 | 5,105 | 557 |
Charge-offs | (1,080) | (131) | (1,330) | (362) |
Recoveries | 585 | 43 | 1,256 | 74 |
Net charge-offs | (495) | (88) | (74) | (288) |
Ending balance | 13,035 | 6,854 | 13,035 | 6,854 |
Consumer Loan [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Beginning balance | 8,457 | 9,074 | 7,017 | 7,837 |
Credit loss, expense (reversal) | 5,007 | 5,884 | 10,756 | 10,466 |
Charge-offs | (7,016) | (5,322) | (13,958) | (11,093) |
Recoveries | 3,115 | 2,499 | 5,748 | 4,925 |
Net charge-offs | (3,901) | (2,823) | (8,210) | (6,168) |
Ending balance | 9,563 | 12,135 | 9,563 | 12,135 |
Loans Receivable [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Beginning balance | 231,514 | 246,835 | 227,621 | 248,666 |
Credit loss, expense (reversal) | 11,933 | (4,396) | 24,608 | 68 |
Charge-offs | (15,750) | (7,344) | (29,122) | (17,874) |
Recoveries | 5,922 | 4,537 | 10,512 | 8,772 |
Net charge-offs | (9,828) | (2,807) | (18,610) | (9,102) |
Ending balance | $ 233,619 | $ 239,632 | $ 233,619 | $ 239,632 |
Loans - Financing Receivable, G
Loans - Financing Receivable, Gross Charge-Offs By Year of Origination (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Commercial Portfolio Segment [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 1,145,305 | $ 1,145,305 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 941,744 | 941,744 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 561,695 | 561,695 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 420,405 | 420,405 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 211,653 | 211,653 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 258,011 | 258,011 | ||
Financing Receivable, Revolving | 2,122,788 | 2,122,788 | ||
Financing Receivable, Allowance for Credit Loss, Writeoff | 7,136 | $ 1,891 | 13,316 | $ 5,346 |
Commercial and Industrial Total Energy Loans [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 311,743 | 311,743 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 70,287 | 70,287 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 83,419 | 83,419 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 4,469 | 4,469 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 7,643 | 7,643 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 6,089 | 6,089 | ||
Financing Receivable, Revolving | 466,945 | 466,945 | ||
Financing Receivable, Allowance for Credit Loss, Writeoff | 518 | 0 | 518 | 371 |
Commercial Real Estate Buildings Land And Other Loans [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 718,176 | 718,176 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,786,515 | 1,786,515 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,488,642 | 1,488,642 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 923,237 | 923,237 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 644,069 | 644,069 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,101,800 | 1,101,800 | ||
Financing Receivable, Revolving | 155,033 | 155,033 | ||
Financing Receivable, Allowance for Credit Loss, Writeoff | 0 | |||
Construction Loans [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 299,297 | 299,297 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 570,101 | 570,101 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 352,871 | 352,871 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 51,647 | 51,647 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 945 | 945 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,666 | 1,666 | ||
Financing Receivable, Revolving | 191,544 | 191,544 | ||
Financing Receivable, Allowance for Credit Loss, Writeoff | 0 | |||
Total consumer real estate loans [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Allowance for Credit Loss, Writeoff | 1,080 | 131 | 1,330 | 362 |
Consumer Loan [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Allowance for Credit Loss, Writeoff | 7,016 | 5,322 | 13,958 | 11,093 |
Loans Receivable [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Allowance for Credit Loss, Writeoff | 15,750 | $ 7,344 | 29,122 | $ 17,874 |
Nonperforming Financial Instruments [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 12,248 | 12,248 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 8 | 8 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 517 | 517 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 19,180 | 19,180 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 8,259 | 8,259 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 4,912 | 4,912 | ||
Financing Receivable, Revolving | 21,578 | 21,578 | ||
Financing Receivable, Revolving, Converted to Term Loan | 1,079 | 1,079 | ||
Nonperforming Financial Instruments [Member] | Commercial Portfolio Segment [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 221 | 221 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 754 | 754 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 2,957 | 2,957 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,172 | 1,172 | ||
Financing Receivable, Revolving | 16,746 | 16,746 | ||
Financing Receivable, Revolving, Converted to Term Loan | 367 | 367 | ||
Nonperforming Financial Instruments [Member] | Commercial and Industrial Total Energy Loans [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 10,324 | 10,324 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 59 | 59 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,349 | 1,349 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 2 | 2 | ||
Financing Receivable, Revolving | 4,832 | 4,832 | ||
Financing Receivable, Revolving, Converted to Term Loan | 146 | 146 | ||
Nonperforming Financial Instruments [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 1,924 | 1,924 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 8 | 8 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 296 | 296 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 18,328 | 18,328 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,483 | 1,483 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 3,643 | 3,643 | ||
Financing Receivable, Revolving | 0 | 0 | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0 | ||
Nonperforming Financial Instruments [Member] | Construction Loans [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Revolving | 0 | 0 | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0 | ||
Nonperforming Financial Instruments [Member] | Total consumer real estate loans [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 39 | 39 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 2,470 | 2,470 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 95 | 95 | ||
Financing Receivable, Revolving | 0 | 0 | ||
Financing Receivable, Revolving, Converted to Term Loan | 566 | 566 | ||
Nonperforming Financial Instruments [Member] | Consumer Loan [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Revolving | 0 | 0 | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0 | ||
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 8,267 | 8,267 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 4,562 | 4,562 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 515 | 515 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 67 | 67 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 25 | 25 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 141 | 141 | ||
Financing Receivable, Revolving | 9,439 | 9,439 | ||
Financing Receivable, Revolving, Converted to Term Loan | 6,106 | 6,106 | ||
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | Commercial Portfolio Segment [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 124 | 124 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 208 | 208 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 178 | 178 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 55 | 55 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 25 | 25 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 29 | 29 | ||
Financing Receivable, Revolving | 7,427 | 7,427 | ||
Financing Receivable, Revolving, Converted to Term Loan | 5,270 | 5,270 | ||
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | Commercial and Industrial Total Energy Loans [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Revolving | 0 | 0 | ||
Financing Receivable, Revolving, Converted to Term Loan | 518 | 518 | ||
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Revolving | 0 | 0 | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0 | ||
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | Construction Loans [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Revolving | 0 | 0 | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0 | ||
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | Total consumer real estate loans [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 280 | 280 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 89 | 89 | ||
Financing Receivable, Revolving | 961 | 961 | ||
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0 | ||
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | Consumer Loan [Member] | ||||
Financing Receivable, Allowance for Credit Loss [Line Items] | ||||
Financing Receivable, Year One, Originated, Current Fiscal Year | 8,143 | 8,143 | ||
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 4,354 | 4,354 | ||
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 57 | 57 | ||
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 12 | 12 | ||
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 | ||
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 23 | 23 | ||
Financing Receivable, Revolving | 1,051 | 1,051 | ||
Financing Receivable, Revolving, Converted to Term Loan | $ 318 | $ 318 |
Loans - Investment in Loans Rel
Loans - Investment in Loans Related to Allowance for Loan Losses by Portfolio Segment Disaggregated Based on Impairment Methodology (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | $ 17,746,311 | $ 17,154,969 |
Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 5,726,804 | 5,674,798 |
Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 986,571 | 925,729 |
Paycheck Protection Program [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 22,333 | 34,852 |
Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 6,924,896 | 6,706,078 |
Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 1,468,071 | 1,477,247 |
Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 2,157,916 | 1,843,539 |
Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 459,720 | 492,726 |
Specific Valuation Allowances [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Specific Allocations | 6,461 | 12,181 |
Specific Valuation Allowances [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Specific Allocations | 2,461 | 6,082 |
Specific Valuation Allowances [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Specific Allocations | 2,700 | 4,383 |
Specific Valuation Allowances [Member] | Paycheck Protection Program [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Specific Allocations | 0 | 0 |
Specific Valuation Allowances [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Specific Allocations | 1,300 | 1,716 |
Specific Valuation Allowances [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Specific Allocations | 0 | 0 |
Specific Valuation Allowances [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Specific Allocations | 0 | 0 |
Specific Valuation Allowances [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Specific Allocations | 0 | 0 |
Loans Individually Evaluated for Impairment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 65,291 | 52,576 |
Loans Individually Evaluated for Impairment [Member] | Commercial Portfolio Segment [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 20,862 | 18,980 |
Loans Individually Evaluated for Impairment [Member] | Commercial and Industrial Total Energy Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 16,445 | 15,058 |
Loans Individually Evaluated for Impairment [Member] | Paycheck Protection Program [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 0 | 0 |
Loans Individually Evaluated for Impairment [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 24,954 | 17,711 |
Loans Individually Evaluated for Impairment [Member] | Construction Loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 0 | 0 |
Loans Individually Evaluated for Impairment [Member] | Total consumer real estate loans [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | 3,030 | 827 |
Loans Individually Evaluated for Impairment [Member] | Consumer Loan [Member] | ||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
Loans and Leases Receivable, Net of Deferred Income | $ 0 | $ 0 |
Goodwill and Other Intangible_3
Goodwill and Other Intangible Assets - Schedule of Goodwill (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Goodwill and Intangible Assets Disclosure [Abstract] | ||
Goodwill | $ 654,952 | $ 654,952 |
Goodwill and Other Intangible_4
Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Finite-Lived Intangible Assets [Line Items] | ||
Other intangible assets, net | $ 208 | $ 386 |
Core deposits [Member] | ||
Finite-Lived Intangible Assets [Line Items] | ||
Other intangible assets, net | 155 | 310 |
Customer relationships [Member] | ||
Finite-Lived Intangible Assets [Line Items] | ||
Other intangible assets, net | $ 53 | $ 76 |
Goodwill and Other Intangible_5
Goodwill and Other Intangible Assets - Estimated Aggregate Future Amortization Expense for Intangible Assets (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Goodwill and Intangible Assets Disclosure [Abstract] | ||
Remainder of 2023 | $ 105 | |
2024 | 87 | |
2025 | 11 | |
2026 | 5 | |
Future Amortization Expense, Total | $ 208 | $ 386 |
Deposits - Schedule of Deposits
Deposits - Schedule of Deposits (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Deposit [Line Items] | ||
Non-interest-bearing demand deposits | $ 14,904,614 | $ 17,598,234 |
Interest-bearing Domestic Deposit, Savings | 10,540,458 | 12,333,675 |
Interest-bearing Domestic Deposit, Money Market | 11,026,368 | 12,227,247 |
Interest-bearing Domestic Deposit, Time Deposits | 4,229,390 | 1,795,040 |
Total interest-bearing deposit | 25,796,216 | 26,355,962 |
Total deposits | $ 40,700,830 | $ 43,954,196 |
Deposits - Additional Informati
Deposits - Additional Information About Corporation's Deposits (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Deposit Liability [Line Items] | ||
Deposits from foreign sources (primarily Mexico) | $ 1,036,777 | $ 1,048,943 |
Non-interest-bearing public funds deposits | 14,904,614 | 17,598,234 |
Interest-bearing public funds deposits | 25,796,216 | 26,355,962 |
Total deposits not covered by deposit insurance | 20,630,167 | 23,839,797 |
Time deposits not covered by deposit insurance | 1,670,388 | 430,128 |
Public Funds [Member] | ||
Deposit Liability [Line Items] | ||
Non-interest-bearing public funds deposits | 447,194 | 788,040 |
Interest-bearing public funds deposits | $ 696,521 | $ 758,761 |
Commitments and Contingencies -
Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | |||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022 | |
Off-Balance-Sheet, Credit Loss, Liability, Change in Method, Credit Loss Expense (Reversal) | $ (19,000) | ||||
Lessee, Operating Lease, Liability, Payments, Due | $ 8,200 | $ 8,400 | 16,600 | $ 16,400 | |
Significant change in expected future minimum lease payments since year end | 0 | ||||
Premises and Equipment | |||||
Operating Lease, Right-of-Use Asset | 286,500 | 286,500 | $ 288,800 | ||
Other Liabilities [Member] | |||||
Operating Lease, Liability | $ 320,600 | $ 320,600 | $ 321,900 |
Commitments and Contingencies_2
Commitments and Contingencies - Financial Instruments with Off-Balance-Sheet Risk (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Standby Letters of Credit [Member] | ||
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
Financial instruments with off- balance-sheet risk | $ 405,900 | $ 383,851 |
Deferred Standby Letter Of Credit Fees [Member] | ||
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
Financial instruments with off- balance-sheet risk | 2,176 | 2,236 |
Commitments to Extend Credit [Member] | ||
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
Financial instruments with off- balance-sheet risk | $ 12,208,032 | $ 12,137,957 |
Commitments and Contingencies C
Commitments and Contingencies Commitments and Contingencies - Credit Losses on Off-Balance-Sheet Commitments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Commitments and Contingencies Disclosure [Abstract] | ||||
Off-Balance Sheet, Credit Loss, Liability | $ 54,918 | $ 45,850 | $ 58,593 | $ 50,314 |
Credit loss expense (benefit) | (2,037) | 4,396 | (5,712) | (68) |
Off-Balance Sheet, Credit Loss, Liability | $ 52,881 | $ 50,246 | $ 52,881 | $ 50,246 |
Commitments and Contingencies_3
Commitments and Contingencies Commitments and Contingencies - Components of Lease Commitments Expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Commitments and Contingencies Disclosure [Abstract] | ||||
Operating Lease, Right-of-Use Asset, Amortization Expense | $ 8,747 | $ 8,209 | $ 17,512 | $ 16,314 |
Short-term lease expense | 493 | 490 | 902 | 1,103 |
Non-lease components (including taxes, insurance, common maintenance, etc.) | 3,662 | 2,748 | 7,043 | 5,768 |
Total operating lease expense, excluding rent | $ 12,902 | $ 11,447 | $ 25,457 | $ 23,185 |
Capital and Regulatory Matter_2
Capital and Regulatory Matters - Additional Information (Detail) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended | |||
Jan. 25, 2023 USD ($) | Nov. 19, 2020 USD ($) | Jun. 30, 2023 USD ($) $ / shares shares | Jun. 30, 2023 USD ($) quarter $ / shares shares | Jun. 30, 2022 USD ($) shares | Dec. 31, 2022 USD ($) $ / shares shares | |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||||||
CECL Transition Amount | $ 30,800 | $ 30,800 | $ 46,200 | |||
Treasury Stock, Shares, Acquired | shares | 289,149 | 298,332 | 7,459 | |||
Purchase of treasury stock (289,149 shares QTD and 298,332 shares YTD in 2023 and 7,459 shares YTD in 2022) | $ 27,951 | $ 29,124 | $ 996 | |||
Maximum dividends available without prior regulatory approval | $ 967,600 | $ 967,600 | ||||
Maximum number of quarterly periods by which the corporation has the right to defer interest payments on junior subordinated deferrable interest debentures | quarter | 20 | |||||
Series B Preferred Stock [Member] | ||||||
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||||||
Preferred stock, shares issued | shares | 150,000 | 150,000 | 150,000 | |||
Preferred Stock, Aggregate Liquidation Preference, Value | $ 150,000 | $ 150,000 | ||||
Preferred stock, par value | $ / shares | $ 0.01 | $ 0.01 | $ 0.01 | |||
Preferred Stock, Liquidation Preference Per Share | $ / shares | $ 1,000 | $ 1,000 | $ 1,000 | |||
Number of Preferred Stock equivalent depositary shares | shares | 40 | 40 | ||||
Payments of Stock Issuance Costs | $ 4,500 | |||||
Proceeds from Issuance of Preferred Stock and Preference Stock | $ 145,500 | |||||
Series B Preferred Stock Equivalent Depositary Shares Member | ||||||
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||||||
Preferred Stock, Liquidation Preference Per Share | $ / shares | $ 25 | $ 25 | ||||
Cullen/Frost [Member] | ||||||
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||||||
Additional Tier 1 Capital beyond Common Equity Tier 1 | $ 145,500 | $ 145,500 | $ 145,500 | |||
Preferred stock dividend rate percentage | 4.45% | 4.45% | ||||
Cullen/Frost [Member] | Trust Preferred Securities Tier Two Capital Allowable Portion [Member] | ||||||
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||||||
Trust preferred securities | $ 120,000 | $ 120,000 | ||||
Frost Bank [Member] | ||||||
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||||||
Additional Tier 1 Capital beyond Common Equity Tier 1 | 0 | $ 0 | $ 0 | |||
stock repurchase 2023 plan | ||||||
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||||||
Stock Repurchase Program, Authorized Amount | $ 100,000 | |||||
Stock Repurchase Program, Period in Force | 1 year | |||||
stock repurchase 2023 plan | Treasury Stock, Common | ||||||
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||||||
Treasury Stock, Shares, Acquired | shares | 288,912 | |||||
Purchase of treasury stock (289,149 shares QTD and 298,332 shares YTD in 2023 and 7,459 shares YTD in 2022) | $ 28,000 | |||||
prior stock repurchase plans | Treasury Stock, Common | ||||||
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||||||
Treasury Stock, Shares, Acquired | shares | 0 | |||||
Subordinated Debt [Member] | ||||||
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||||||
Permissible Percentage Decreased Each Of Final Five Years Of Term Of Notes | 20% | 20% | ||||
Final years of the term of the notes | 5 years | 5 years | ||||
Subordinated Debt [Member] | Cullen/Frost [Member] | ||||||
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||||||
Permissible portion of subordinated note included in capital | $ 60,000 | $ 60,000 | $ 80,000 |
Capital and Regulatory Matter_3
Capital and Regulatory Matters - Actual and Required Capital Ratios (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Cullen/Frost [Member] | ||
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||
Common Equity Tier 1 to Risk-Weighted Assets, Actual, Capital Amount | $ 3,943,110 | $ 3,751,200 |
Common Equity Tier 1 to Risk-Weighted Assets, Actual , Ratio | 13.42% | 12.85% |
Common Equity Tier 1 to Risk-Weighted Assets, Minimum Capital Required Plus Capital Conservation Buffer, Capital Amount | $ 2,056,052 | $ 2,042,876 |
Common Equity Tier 1 to Risk-Weighted Assets, Minimum Capital Required Plus Capital Conservation Buffer, Ratio | 7% | 7% |
Tier 1 Capital to Risk-Weighted Assets, Actual, Capital Amount | $ 4,088,562 | $ 3,896,652 |
Tier 1 Capital to Risk-Weighted Assets, Actual, Ratio | 13.92% | 13.35% |
Tier 1 Capital to Risk-Weighted Assets, Minimum Capital Required Plus Capital Conservation Buffer, Capital Amount | $ 2,496,634 | $ 2,480,635 |
Tier 1 Capital to Risk-Weighted Assets, Minimum Capital Required Plus Capital Conservation Buffer, Ratio | 8.50% | 8.50% |
Tier 1 Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized, Capital Amount | $ 1,762,330 | $ 1,751,036 |
Tier 1 Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized, Ratio | 6% | 6% |
Total Capital to Risk-Weighted Assets, Actual, Capital Amount | $ 4,520,634 | $ 4,330,982 |
Total Capital to Risk-Weighted Assets, Actual, Ratio | 15.39% | 14.84% |
Total Capital to Risk-Weighted Assets, Minimum Capital Required Plus Capital Conservation Buffer, Capital Amount | $ 3,084,077 | $ 3,064,313 |
Total Capital to Risk-Weighted Assets, Minimum Capital Required Plus Capital Conservation Buffer, Ratio | 10.50% | 10.50% |
Total Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized, Capital Amount | $ 2,937,217 | $ 2,918,394 |
Total Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized, Ratio | 10% | 10% |
Leverage Ratio, Actual, Capital Amount | $ 4,088,562 | $ 3,896,652 |
Leverage Ratio, Actual, Ratio | 8.11% | 7.29% |
Leverage Ratio, Minimum Capital Required Plus Capital Conservation Buffer, Capital Amount | $ 2,016,414 | $ 2,136,680 |
Leverage Ratio, Minimum Capital Required Plus Capital Conservation Buffer, Ratio | 4% | 4% |
Frost Bank [Member] | ||
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||
Common Equity Tier 1 to Risk-Weighted Assets, Actual, Capital Amount | $ 3,973,809 | $ 3,789,056 |
Common Equity Tier 1 to Risk-Weighted Assets, Actual , Ratio | 13.55% | 13% |
Common Equity Tier 1 to Risk-Weighted Assets, Minimum Capital Required Plus Capital Conservation Buffer, Capital Amount | $ 2,053,467 | $ 2,040,388 |
Common Equity Tier 1 to Risk-Weighted Assets, Minimum Capital Required Plus Capital Conservation Buffer, Ratio | 7% | 7% |
Common Equity Tier 1 to Risk-Weighted Assets, Required To Be Considered Well Capitalized, Capital Amount | $ 1,906,791 | $ 1,894,646 |
Common Equity Tier 1 to Risk-Weighted Assets, Required To Be Considered Well Capitalized, Ratio | 6.50% | 6.50% |
Tier 1 Capital to Risk-Weighted Assets, Actual, Capital Amount | $ 3,973,809 | $ 3,789,056 |
Tier 1 Capital to Risk-Weighted Assets, Actual, Ratio | 13.55% | 13% |
Tier 1 Capital to Risk-Weighted Assets, Minimum Capital Required Plus Capital Conservation Buffer, Capital Amount | $ 2,493,496 | $ 2,477,614 |
Tier 1 Capital to Risk-Weighted Assets, Minimum Capital Required Plus Capital Conservation Buffer, Ratio | 8.50% | 8.50% |
Tier 1 Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized, Capital Amount | $ 2,346,820 | $ 2,331,872 |
Tier 1 Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized, Ratio | 8% | 8% |
Total Capital to Risk-Weighted Assets, Actual, Capital Amount | $ 4,225,881 | $ 4,023,386 |
Total Capital to Risk-Weighted Assets, Actual, Ratio | 14.41% | 13.80% |
Total Capital to Risk-Weighted Assets, Minimum Capital Required Plus Capital Conservation Buffer, Capital Amount | $ 3,080,201 | $ 3,060,583 |
Total Capital to Risk-Weighted Assets, Minimum Capital Required Plus Capital Conservation Buffer, Ratio | 10.50% | 10.50% |
Total Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized, Capital Amount | $ 2,933,525 | $ 2,914,841 |
Total Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized, Ratio | 10% | 10% |
Leverage Ratio, Actual, Capital Amount | $ 3,973,809 | $ 3,789,056 |
Leverage Ratio, Actual, Ratio | 7.88% | 7.09% |
Leverage Ratio, Minimum Capital Required Plus Capital Conservation Buffer, Capital Amount | $ 2,015,896 | $ 2,136,316 |
Leverage Ratio, Minimum Capital Required Plus Capital Conservation Buffer, Ratio | 4% | 4% |
Leverage Ratio, Required to be Considered Well Capitalized, Capital Amount | $ 2,519,870 | $ 2,670,395 |
Leverage Ratio, Required to be Considered Well Capitalized, Ratio | 5% | 5% |
Derivative Financial Instrume_3
Derivative Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Derivative [Line Items] | ||
Weighted-average strike rate for outstanding interest rate caps | 3.32% | |
Approximate credit exposure related to swaps with bank customers | $ 6,800 | |
Interest rate swaps with upstream financial institution counterparties [Member] | ||
Derivative [Line Items] | ||
Approximate credit exposure related to swaps with bank customers | 341 | |
Not Designated as Hedging Instrument [Member] | Financial Institution Counterparties Loan Lease Interest Rate Swaps Liabilities [Member] | ||
Derivative [Line Items] | ||
Estimated fair value of derivative contracts cleared through Chicago Mercantile Exchange | $ 0 | $ 0 |
Derivative Financial Instrume_4
Derivative Financial Instruments - Schedule of Notional Amounts and Estimated Fair Values of Interest Rate Derivative Contracts Outstanding (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Designated as Hedging Instrument [Member] | Financial institution counterparties Loan/lease interest rate swaps assets [Member] | ||
Derivatives, Fair Value [Line Items] | ||
Forward Contracts – Assets Notional Amount | $ 0 | $ 1,614 |
Estimated Fair Value | 0 | 19 |
Non Designated as Hedging Instrument [Member] | Financial institution counterparties Loan/lease interest rate swaps assets [Member] | ||
Derivatives, Fair Value [Line Items] | ||
Forward Contracts – Assets Notional Amount | 1,162,694 | 1,165,812 |
Estimated Fair Value | 78,404 | 70,416 |
Non Designated as Hedging Instrument [Member] | Financial institution counterparties Loan/lease interest rate swaps liabilities [Member] | ||
Derivatives, Fair Value [Line Items] | ||
Forward Contracts – Liability Notional Amount | 72,833 | 78,798 |
Estimated Fair Value | (1,332) | (1,102) |
Non Designated as Hedging Instrument [Member] | Financial institution counterparties Loan/lease interest-rate caps assets [Member] | ||
Derivatives, Fair Value [Line Items] | ||
Forward Contracts – Assets Notional Amount | 229,804 | 246,442 |
Estimated Fair Value | 14,557 | 15,256 |
Non Designated as Hedging Instrument [Member] | Customer counterparties Loan/lease interest rate swaps assets [Member] | ||
Derivatives, Fair Value [Line Items] | ||
Forward Contracts – Assets Notional Amount | 78,789 | 53,570 |
Estimated Fair Value | 1,401 | 1,102 |
Non Designated as Hedging Instrument [Member] | Customer counterparties Loan/lease interest rate swaps liabilities [Member] | ||
Derivatives, Fair Value [Line Items] | ||
Forward Contracts – Liability Notional Amount | 1,156,738 | 1,175,563 |
Estimated Fair Value | (78,402) | (79,175) |
Non Designated as Hedging Instrument [Member] | Customer counterparties Loan/lease interest rate caps liabilities [Member] | ||
Derivatives, Fair Value [Line Items] | ||
Forward Contracts – Liability Notional Amount | 229,804 | 246,442 |
Estimated Fair Value | $ (14,557) | $ (15,256) |
Derivative Financial Instrume_5
Derivative Financial Instruments - Schedule of Weighted-Average Rates Paid and Received for Interest Rate Swaps Outstanding (Detail) | Jun. 30, 2023 |
Financial Institution Counterparties [Member] | Weighted Average Interest Rate Paid [Member] | |
Short-duration insurance contracts, discounted liabilities [Line Items] | |
Non-hedging interest rate swaps – financial institution counterparties | 3.96% |
Financial Institution Counterparties [Member] | Weighted-Average Interest Rate Received [Member] | |
Short-duration insurance contracts, discounted liabilities [Line Items] | |
Non-hedging interest rate swaps – financial institution counterparties | 5.62% |
Customer Counterparties [Member] | Weighted Average Interest Rate Paid [Member] | |
Short-duration insurance contracts, discounted liabilities [Line Items] | |
Non-hedging interest rate swaps – customer counterparties | 5.62% |
Customer Counterparties [Member] | Weighted-Average Interest Rate Received [Member] | |
Short-duration insurance contracts, discounted liabilities [Line Items] | |
Non-hedging interest rate swaps – customer counterparties | 3.96% |
Derivative Financial Instrume_6
Derivative Financial Instruments - Schedule of Notional Amounts and Estimated Fair Values of Commodity Derivative Positions (Detail) bbl in Thousands, MMBTU in Thousands, $ in Thousands | Jun. 30, 2023 USD ($) bbl MMBTU | Dec. 31, 2022 USD ($) bbl MMBTU |
Financial Institution Counterparties [Member] | Oil Commodity Derivative [Member] | ||
Derivative Instruments [Line Items] | ||
Oil/Natural Gas Derivative Assets, Notional Amount | bbl | 4,134 | 4,024 |
Oil/Natural Gas Derivative Liabilities, Notional Amount | bbl | 5,345 | 6,068 |
Oil/Natural Gas Derivative Assets, Estimated Fair Value | $ 30,701 | $ 27,082 |
Oil/Natural Gas Derivative Liabilities, Estimated Fair Value | $ (21,229) | $ (53,579) |
Financial Institution Counterparties [Member] | Natural Gas Commodity Derivative [Member] | ||
Derivative Instruments [Line Items] | ||
Oil/Natural Gas Derivative Assets, Notional Amount | MMBTU | 16,694 | 16,539 |
Oil/Natural Gas Derivative Liabilities, Notional Amount | MMBTU | 9,871 | 15,682 |
Oil/Natural Gas Derivative Assets, Estimated Fair Value | $ 6,668 | $ 6,220 |
Oil/Natural Gas Derivative Liabilities, Estimated Fair Value | $ (6,841) | $ (19,138) |
Customer Counterparties [Member] | Oil Commodity Derivative [Member] | ||
Derivative Instruments [Line Items] | ||
Oil/Natural Gas Derivative Assets, Notional Amount | bbl | 5,391 | 6,068 |
Oil/Natural Gas Derivative Liabilities, Notional Amount | bbl | 4,088 | 4,024 |
Oil/Natural Gas Derivative Assets, Estimated Fair Value | $ 21,580 | $ 54,219 |
Oil/Natural Gas Derivative Liabilities, Estimated Fair Value | $ (30,255) | $ (26,551) |
Customer Counterparties [Member] | Natural Gas Commodity Derivative [Member] | ||
Derivative Instruments [Line Items] | ||
Oil/Natural Gas Derivative Assets, Notional Amount | MMBTU | 9,871 | 15,682 |
Oil/Natural Gas Derivative Liabilities, Notional Amount | MMBTU | 16,694 | 16,539 |
Oil/Natural Gas Derivative Assets, Estimated Fair Value | $ 6,865 | $ 19,164 |
Oil/Natural Gas Derivative Liabilities, Estimated Fair Value | $ (6,477) | $ (6,124) |
Derivative Financial Instrume_7
Derivative Financial Instruments - Schedule of Notional Amounts and Fair Values of Open Foreign Currency Forward Contracts (Details) € in Thousands, $ in Thousands | Jun. 30, 2023 USD ($) | Jun. 30, 2023 EUR (€) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 EUR (€) |
Financial Institution Counterparties [Member] | GBP Foreign Exchange Forward | ||||
Derivative Instruments [Line Items] | ||||
Forward Contracts – Assets Estimated Fair Value | $ | $ 0 | $ 1 | ||
Forward Contracts - Liability Estimated Fair Value | $ | 0 | (10) | ||
Financial Institution Counterparties [Member] | Other Assets [Member] | Non Designated as Hedging Instrument [Member] | ||||
Derivative Instruments [Line Items] | ||||
Forward Contracts – Assets Notional Amount | € | € 0 | € 875 | ||
Financial Institution Counterparties [Member] | Other Liabilities [Member] | Non Designated as Hedging Instrument [Member] | ||||
Derivative Instruments [Line Items] | ||||
Forward Contracts – Liability Notional Amount | € | 0 | 875 | ||
Customer Counterparties [Member] | GBP Foreign Exchange Forward | ||||
Derivative Instruments [Line Items] | ||||
Forward Contracts – Assets Estimated Fair Value | $ | 0 | 10 | ||
Forward Contracts - Liability Estimated Fair Value | $ | $ 0 | $ (1) | ||
Customer Counterparties [Member] | Other Assets [Member] | Non Designated as Hedging Instrument [Member] | ||||
Derivative Instruments [Line Items] | ||||
Forward Contracts – Assets Notional Amount | € | 0 | 875 | ||
Customer Counterparties [Member] | Other Liabilities [Member] | Non Designated as Hedging Instrument [Member] | ||||
Derivative Instruments [Line Items] | ||||
Forward Contracts – Liability Notional Amount | € | € 0 | € 875 |
Derivative Financial Instrume_8
Derivative Financial Instruments - Schedule of Amounts Related to Interest Rate Derivatives Designated as Hedges of Fair Value (Detail) - Designated as Hedging Instrument [Member] - Commercial Loan/Lease Interest Rate Swaps [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Interest Income on Loans [Member] | ||||
Derivative Instruments, Gain (Loss) [Line Items] | ||||
Amount of gain (loss) included in income | $ 4 | $ (5) | $ 16 | $ (18) |
Other Non-Interest Expense [Member] | ||||
Derivative Instruments, Gain (Loss) [Line Items] | ||||
Amount of gain (loss) included in income | $ 4 | $ 3 | $ 4 | $ 5 |
Derivative Financial Instrume_9
Derivative Financial Instruments - Schedule of Amounts Related to Non-Hedging Interest Rate and Commodity Derivatives (Detail) - Non Designated as Hedging Instrument [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Interest Rate Contract [Member] | Other Non-Interest Income [Member] | ||||
Other Non Interest Income Non Hedging Interest Rate Derivatives [Line Items] | ||||
Amount of gain (loss) included in income (expense) | $ 1,002 | $ 515 | $ 1,712 | $ 1,031 |
Interest Rate Contract [Member] | Other Non-Interest Expense [Member] | ||||
Other Non Interest Income Non Hedging Interest Rate Derivatives [Line Items] | ||||
Amount of gain (loss) included in income (expense) | 1 | 0 | 0 | 0 |
Commodity Contract [Member] | Other Non-Interest Income [Member] | ||||
Other Non Interest Income Non Hedging Interest Rate Derivatives [Line Items] | ||||
Amount of gain (loss) included in income (expense) | 503 | 649 | 925 | 1,578 |
Foreign Currency Derivative Contracts [Member] | Other Non-Interest Income [Member] | ||||
Other Non Interest Income Non Hedging Interest Rate Derivatives [Line Items] | ||||
Amount of gain (loss) included in income (expense) | $ 0 | $ 45 | $ 25 | $ 63 |
Balance Sheet Offsetting - Fina
Balance Sheet Offsetting - Financial Instruments Eligible for Offset Consolidated Balance Sheet (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
Gross Amount Recognized, Derivatives, Financial Assets | $ 130,330 | $ 118,994 |
Gross Amount Offset, Derivatives, Financial assets | 0 | 0 |
Net Amount Recognized, Derivatives, Financial assets | 130,330 | 118,994 |
Gross Amount Recognized, Resell agreements, Financial assets | 84,650 | 87,150 |
Gross Amount Offset, Resell agreements, Financial assets | 0 | 0 |
Net Amount Recognized, Resell agreements, Financial assets | 84,650 | 87,150 |
Gross Amount Recognized, Financial assets | 214,980 | 206,144 |
Gross Amount Offset, Financial assets | 0 | 0 |
Net Amount Recognized, Financial assets | 214,980 | 206,144 |
Gross Amount Recognized, Derivatives, Financial Liabilities | 29,402 | 73,829 |
Gross Amount Offset, Derivatives, Financial liabilities | 0 | 0 |
Net Amount Recognized, Derivatives, Financial liabilities | 29,402 | 73,829 |
Gross Amount Recognized, Repurchase agreements, Financial liabilities | 3,569,870 | 4,660,641 |
Gross Amount Offset, Repurchase agreements, Financial liabilities | 0 | 0 |
Net Amount Recognized, Repurchase agreements, Financial liabilities | 3,569,870 | 4,660,641 |
Gross Amount Recognized, Financial liabilities | 3,599,272 | 4,734,470 |
Gross Amount Offset, Financial liabilities | 0 | 0 |
Net Amount Recognized, Financial Liabilities | 3,599,272 | 4,734,470 |
Loan/lease interest rate swaps and caps [Member] | ||
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
Gross Amount Recognized, Derivatives, Financial Assets | 92,961 | 85,691 |
Gross Amount Offset, Derivatives, Financial assets | 0 | 0 |
Net Amount Recognized, Derivatives, Financial assets | 92,961 | 85,691 |
Gross Amount Recognized, Derivatives, Financial Liabilities | 1,332 | 1,102 |
Gross Amount Offset, Derivatives, Financial liabilities | 0 | 0 |
Net Amount Recognized, Derivatives, Financial liabilities | 1,332 | 1,102 |
Commodity swaps and options [Member] | ||
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
Gross Amount Recognized, Derivatives, Financial Assets | 37,369 | 33,302 |
Gross Amount Offset, Derivatives, Financial assets | 0 | 0 |
Net Amount Recognized, Derivatives, Financial assets | 37,369 | 33,302 |
Gross Amount Recognized, Derivatives, Financial Liabilities | 28,070 | 72,717 |
Gross Amount Offset, Derivatives, Financial liabilities | 0 | 0 |
Net Amount Recognized, Derivatives, Financial liabilities | $ 28,070 | 72,717 |
Foreign currency forward contracts [Member] | ||
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
Gross Amount Recognized, Derivatives, Financial Assets | 1 | |
Gross Amount Offset, Derivatives, Financial assets | 0 | |
Net Amount Recognized, Derivatives, Financial assets | 1 | |
Gross Amount Recognized, Derivatives, Financial Liabilities | 10 | |
Gross Amount Offset, Derivatives, Financial liabilities | 0 | |
Net Amount Recognized, Derivatives, Financial liabilities | $ 10 |
Balance Sheet Offsetting - Fi_2
Balance Sheet Offsetting - Financial Instruments Derivative Assets Liabilities and Resell Agreements Net of Amount Not Offset (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
Net Amount Recognized, Derivatives, Financial Assets | $ 130,330 | $ 118,994 |
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Assets | (29,402) | (62,528) |
Gross Amount Not Offset Collateral, Derivatives, Financial Assets | (100,589) | (55,968) |
Net Amount, Derivatives, Financial Assets | 339 | 498 |
Net Amount Recognized, Resell agreements, Financial Assets | 84,650 | 87,150 |
Gross Amounts Not Offset Financial Instruments, Resell Agreements | 0 | 0 |
Gross Amounts Not Offset Collateral, Resell Agreements, Financial Assets | (84,650) | (87,150) |
Net Amount, Financial Assets, Resell Agreements | 0 | 0 |
Net Amount Recognized, Total Financial Assets | 214,980 | 206,144 |
Gross Amounts Not Offset Collateral, Financial Assets | (185,239) | (143,118) |
Net Amount, Financial Assets | 339 | 498 |
Net Amount Recognized, Derivatives, Financial Liabilities | 29,402 | 73,829 |
Gross Amounts Not Offset Financial Instruments, Total Derivatives, Financial Liabilities | (29,402) | (62,528) |
Gross Amounts Not Offset Collateral, Derivatives, Financial Liabilities | 0 | (9,330) |
Net Amount, Derivatives, Financial Liabilities | 0 | 1,971 |
Net Amount Recognized, Repurchase Agreements, Financial Liabilities | 3,569,870 | 4,660,641 |
Gross Amounts Not Offset Financial Instruments, Repurchase Agreements, Financial Liabilities | 0 | 0 |
Gross Amounts Not Offset Collateral, Repurchase Agreements, Financial Liabilities | (3,569,870) | (4,660,641) |
Net Amount, Repurchase Agreements, Financial Liabilities | 0 | 0 |
Net Amount Recognized, Total Financial Liabilities | 3,599,272 | 4,734,470 |
Gross Amounts Not Offset Collateral, Financial Liabilities | (3,569,870) | (4,669,971) |
Net Amount, Financial Liabilities | 0 | 1,971 |
Counterparty B | ||
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
Net Amount Recognized, Derivatives, Financial Assets | 32,143 | 39,370 |
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Assets | (9,548) | (24,500) |
Gross Amount Not Offset Collateral, Derivatives, Financial Assets | (22,595) | (14,870) |
Net Amount, Derivatives, Financial Assets | 0 | 0 |
Net Amount Recognized, Derivatives, Financial Liabilities | 9,548 | 24,500 |
Gross Amounts Not Offset Financial Instruments, Total Derivatives, Financial Liabilities | (9,548) | (24,500) |
Gross Amounts Not Offset Collateral, Derivatives, Financial Liabilities | 0 | 0 |
Net Amount, Derivatives, Financial Liabilities | 0 | 0 |
Counterparty E | ||
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
Net Amount Recognized, Derivatives, Financial Assets | 16,312 | 14,430 |
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Assets | (896) | (47) |
Gross Amount Not Offset Collateral, Derivatives, Financial Assets | (15,240) | (14,131) |
Net Amount, Derivatives, Financial Assets | 176 | 252 |
Net Amount Recognized, Derivatives, Financial Liabilities | 896 | 47 |
Gross Amounts Not Offset Financial Instruments, Total Derivatives, Financial Liabilities | (896) | (47) |
Gross Amounts Not Offset Collateral, Derivatives, Financial Liabilities | 0 | 0 |
Net Amount, Derivatives, Financial Liabilities | 0 | 0 |
Counterparty F | ||
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
Net Amount Recognized, Derivatives, Financial Assets | 18,387 | 17,297 |
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Assets | (8,839) | (17,297) |
Gross Amount Not Offset Collateral, Derivatives, Financial Assets | (9,463) | 0 |
Net Amount, Derivatives, Financial Assets | 85 | 0 |
Net Amount Recognized, Derivatives, Financial Liabilities | 8,839 | 27,747 |
Gross Amounts Not Offset Financial Instruments, Total Derivatives, Financial Liabilities | (8,839) | (17,297) |
Gross Amounts Not Offset Collateral, Derivatives, Financial Liabilities | 0 | (8,479) |
Net Amount, Derivatives, Financial Liabilities | 0 | 1,971 |
Counterparty G | ||
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
Net Amount Recognized, Derivatives, Financial Assets | 10,484 | 10,660 |
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Assets | 0 | 0 |
Gross Amount Not Offset Collateral, Derivatives, Financial Assets | (10,430) | (10,660) |
Net Amount, Derivatives, Financial Assets | 54 | 0 |
Net Amount Recognized, Derivatives, Financial Liabilities | 0 | |
Gross Amounts Not Offset Financial Instruments, Total Derivatives, Financial Liabilities | 0 | |
Gross Amounts Not Offset Collateral, Derivatives, Financial Liabilities | 0 | |
Net Amount, Derivatives, Financial Liabilities | 0 | |
Other counterparties | ||
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
Net Amount Recognized, Derivatives, Financial Assets | 53,004 | 37,237 |
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Assets | (10,119) | (20,684) |
Gross Amount Not Offset Collateral, Derivatives, Financial Assets | (42,861) | (16,307) |
Net Amount, Derivatives, Financial Assets | 24 | 246 |
Net Amount Recognized, Derivatives, Financial Liabilities | 10,119 | 21,535 |
Gross Amounts Not Offset Financial Instruments, Total Derivatives, Financial Liabilities | (10,119) | (20,684) |
Gross Amounts Not Offset Collateral, Derivatives, Financial Liabilities | 0 | (851) |
Net Amount, Derivatives, Financial Liabilities | $ 0 | $ 0 |
Balance Sheet Offsetting Balanc
Balance Sheet Offsetting Balance Sheet Offsetting - Remaining Contractual Maturity of the Securities Sold Under Agreement to Repurchase (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Remaining Contractual Maturity of the Securities Sold Under Agreement to Repurchase [Line Items] | ||
Remaining contractual maturity of the agreements overnight and continuous | $ 3,569,870 | $ 4,660,641 |
Remaining contractual maturity of the agreements up to 30 Days | 0 | 0 |
Remaining contractual maturity of the agreements 30 to 90 Days | 0 | 0 |
Remaining contractual maturity of the agreements greater than 90 Days | 0 | 0 |
Remaining contractual maturity of the agreements total | 3,569,870 | 4,660,641 |
Securities Sold under Agreements to Repurchase, Gross | 3,569,870 | 4,660,641 |
Securities Sold under Agreements to Repurchase, Collateral, Right to Reclaim Securities | 0 | 0 |
US Treasury Securities [Member] | ||
Remaining Contractual Maturity of the Securities Sold Under Agreement to Repurchase [Line Items] | ||
Remaining contractual maturity of the agreements overnight and continuous | 2,716,439 | 3,735,061 |
Remaining contractual maturity of the agreements up to 30 Days | 0 | 0 |
Remaining contractual maturity of the agreements 30 to 90 Days | 0 | 0 |
Remaining contractual maturity of the agreements greater than 90 Days | 0 | 0 |
Remaining contractual maturity of the agreements total | 2,716,439 | 3,735,061 |
Residential Mortgage Backed Securities [Member] | ||
Remaining Contractual Maturity of the Securities Sold Under Agreement to Repurchase [Line Items] | ||
Remaining contractual maturity of the agreements overnight and continuous | 853,431 | 925,580 |
Remaining contractual maturity of the agreements up to 30 Days | 0 | 0 |
Remaining contractual maturity of the agreements 30 to 90 Days | 0 | 0 |
Remaining contractual maturity of the agreements greater than 90 Days | 0 | 0 |
Remaining contractual maturity of the agreements total | $ 853,431 | $ 925,580 |
Stock-Based Compensation Stock-
Stock-Based Compensation Stock-Based Compensation - Narrative (Details) | Jun. 30, 2023 shares |
Performance Shares [Member] | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | 514,028 |
Stock-Based Compensation - Summ
Stock-Based Compensation - Summary of Activity in Corporation's Active Stock Plans (Detail) - $ / shares | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Stock options exercised, Number of Shares | (13,626) | (28,832) | (64,013) | (144,262) |
Director deferred stock units outstanding [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Beginning Balance, Number of Shares/Units | 45,661 | |||
Granted, Number of Units | 8,503 | |||
Ending Balance, Number of Shares/Units | 54,164 | 54,164 | ||
Beginning Balance, Weighted-Average Grant-Date Fair Value | $ 87.15 | |||
Granted Weighted-Average Grant-Date Fair Value | 103.47 | |||
Ending Balance, Weighted-Average Grant-Date Fair Value | $ 89.71 | $ 89.71 | ||
Non-Vested Stock Awards/Stock Units Outstanding [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Beginning Balance, Number of Shares/Units | 465,319 | |||
Granted, Number of Units | 2,594 | |||
Stock Awards exercised/vested, Number of Shares | (1,957) | |||
Forfeited/expired, Number of Shares/Units | (1,415) | |||
Ending Balance, Number of Shares/Units | 464,541 | 464,541 | ||
Beginning Balance, Weighted-Average Grant-Date Fair Value | $ 105.36 | |||
Granted Weighted-Average Grant-Date Fair Value | 128.42 | |||
Stock Award Exercised/Vested, Weighted Average Grant Date Fair Value | 91.96 | |||
Forfeited/Expired, Weighted-Average Price | 116.02 | |||
Ending Balance, Weighted-Average Grant-Date Fair Value | $ 105.52 | $ 105.52 | ||
Stock Options Outstanding [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Beginning Balance, Number of Shares | 616,227 | |||
Stock options exercised, Number of Shares | (33,905) | |||
Ending Balance, Number of Shares | 582,322 | 582,322 | ||
Beginning Balance, Weighted-Average Exercise Price | $ 71.27 | |||
Stock options exercised, Weighted-Average Exercise Price | 72.13 | |||
Ending Balance, Weighted-Average Exercise Price | $ 71.22 | $ 71.22 | ||
Maximum [Member] | Performance Shares [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Beginning Balance, Number of Shares/Units | 213,749 | |||
Stock Awards exercised/vested, Number of Shares | (28,151) | |||
Forfeited/expired, Number of Shares/Units | (18,254) | |||
Ending Balance, Number of Shares/Units | 167,344 | 167,344 | ||
Beginning Balance, Weighted-Average Grant-Date Fair Value | $ 96.20 | |||
Stock Award Exercised/Vested, Weighted Average Grant Date Fair Value | 85.74 | |||
Forfeited/Expired, Weighted-Average Price | 85.74 | |||
Ending Balance, Weighted-Average Grant-Date Fair Value | $ 99.10 | $ 99.10 |
Stock-Based Compensation - Shar
Stock-Based Compensation - Shares Issued in Connection with Stock Compensation Awards (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Share-Based Payment Arrangement [Abstract] | ||||
New shares issued from available authorized shares | 0 | 0 | 49,887 | 0 |
Shares issued from available treasury stock | 13,626 | 28,832 | 14,126 | 144,262 |
Proceeds from stock option exercises | $ 946 | $ 751 | $ 2,446 | $ 6,490 |
Stock-Based Compensation - Stoc
Stock-Based Compensation - Stock-Based Compensation Expense (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Share-based Payment Arrangement, Expense | $ 4,793 | $ 3,418 | $ 9,535 | $ 5,530 |
Income tax benefit | 800 | 612 | 1,868 | 1,320 |
Non-Vested Stock Awards/Stock Units [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Restricted Stock or Unit Expense | 2,864 | 2,291 | 6,171 | 4,649 |
Director deferred stock units outstanding [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Restricted Stock or Unit Expense | 880 | 720 | 880 | 720 |
Performance Shares [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Restricted Stock or Unit Expense | $ 1,049 | $ 407 | $ 2,484 | $ 161 |
Stock-Based Compensation - Unre
Stock-Based Compensation - Unrecognized Stock-Based Compensation Expense (Detail) $ in Thousands | Jun. 30, 2023 USD ($) |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
Non-vested stock units | $ 15,768 |
Performance stock units | 7,029 |
Total | $ 22,797 |
Earnings Per Common Share - Bas
Earnings Per Common Share - Basic and Diluted Earnings Per Common Share (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Earnings Per Share [Abstract] | ||||
Net income | $ 162,118 | $ 119,114 | $ 339,771 | $ 218,216 |
Less: Preferred stock dividends | 1,669 | 1,669 | 3,338 | 3,338 |
Net income available to common shareholders | 160,449 | 117,445 | 336,433 | 214,878 |
Less: Earnings allocated to participating securities | 1,645 | 1,036 | 3,468 | 1,888 |
Distributed earnings allocated to common stock | 55,783 | 48,092 | 111,789 | 96,143 |
Undistributed earnings allocated to common stock | 103,021 | 68,317 | 221,176 | 116,847 |
Net earnings allocated to common stock | $ 158,804 | $ 116,409 | $ 332,965 | $ 212,990 |
Weighted-average shares outstanding for basic earnings per common share | 64,240,789 | 64,112,828 | 64,306,809 | 64,082,185 |
Dilutive effect of stock compensation | 187,172 | 354,401 | 225,267 | 382,395 |
Weighted-average shares outstanding for diluted earnings per common share | 64,427,961 | 64,467,229 | 64,532,076 | 64,464,580 |
Defined Benefit Plans Additiona
Defined Benefit Plans Additional Information (Details) $ in Thousands | 6 Months Ended |
Jun. 30, 2023 USD ($) | |
Retirement Benefits [Abstract] | |
Defined Benefit Plan, Plan Assets, Contributions by Employer | $ 0 |
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year | $ 0 |
Defined Benefit Plans - Net Per
Defined Benefit Plans - Net Periodic Cost (Benefit) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Retirement Benefits [Abstract] | ||||
Expected return on plan assets, net of expenses | $ (2,740) | $ (3,492) | $ (5,480) | $ (6,983) |
Interest cost on projected benefit obligation | 1,746 | 1,004 | 3,492 | 2,008 |
Net amortization and deferral | 870 | 741 | 1,740 | 1,482 |
Net periodic expense (benefit) | $ (124) | $ (1,747) | $ (248) | $ (3,493) |
Income Taxes - Additional Infor
Income Taxes - Additional Information (Detail) - USD ($) $ in Millions | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022 | |
Income Tax Disclosure [Abstract] | |||
Deferred Tax Assets, Net | $ 365.4 | $ 374.4 | |
Valuation allowance | $ 0 | ||
U.S. federal statutory income tax rate, percent | 21% | 21% | |
Unrecognized tax benefits | $ 0 | $ 0 |
Income Taxes - Income Tax Expen
Income Taxes - Income Tax Expense (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Income Tax Disclosure [Abstract] | ||||
Current income tax expense | $ 32,413 | $ 22,646 | $ 67,408 | $ 35,705 |
Deferred income tax expense (benefit) | (680) | (1,972) | (2,489) | (2,404) |
Income tax expense, as reported | $ 31,733 | $ 20,674 | $ 64,919 | $ 33,301 |
Effective tax rate | 16.40% | 14.80% | 16% | 13.20% |
Other Comprehensive Income (L_3
Other Comprehensive Income (Loss) - Component of Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Equity [Abstract] | ||||
Securities available for sale and transferred securities, Change in net unrealized gain/loss during the period, Before Tax Amount | $ (206,863) | $ (636,523) | $ 53,406 | $ (1,547,318) |
Securities available for sale and transferred securities, Change in net unrealized gain on securities transferred to held to maturity, Before Tax Amount | (162) | (189) | (322) | (398) |
Securities available for sale and transferred securities, Reclassification adjustment for net (gains) losses included in net income, Before Tax Amount | (33) | 0 | (54) | 0 |
Total securities available for sale and transferred securities, before tax amount | (207,058) | (636,712) | 53,030 | (1,547,716) |
Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit), before tax amount | 870 | 741 | 1,740 | 1,482 |
Total defined-benefit post-retirement benefit plans | 870 | 741 | 1,740 | 1,482 |
Total other comprehensive income (loss), before tax | (206,188) | (635,971) | 54,770 | (1,546,234) |
Securities available for sale and transferred securities, Change in net unrealized gain/loss during the period, Tax Expense (Benefit) | (43,441) | (133,670) | 11,215 | (324,937) |
Securities available for sale and transferred securities, Change in net unrealized gain on securities transferred to held to maturity, Tax Expense (Benefit) | (34) | (40) | (67) | (84) |
Securities available for sale and transferred securities, Reclassification adjustment for net (gains) losses included in net income, Tax Expense (Benefit) | (7) | 0 | (11) | 0 |
Total securities available for sale and transferred securities, Tax Expense (Benefit) | (43,482) | (133,710) | 11,137 | (325,021) |
Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit), Tax Expense (Benefit) | 183 | 155 | 366 | 311 |
Total defined-benefit post-retirement benefit plans, Tax Expense (Benefit) | 183 | 155 | 366 | 311 |
Total other comprehensive income (loss), Tax Expense (Benefit) | (43,299) | (133,555) | 11,503 | (324,710) |
Securities available for sale and transferred securities, Change in net unrealized gain/loss during the period, Net of Tax | (163,422) | (502,853) | 42,191 | (1,222,381) |
Securities available for sale and transferred securities, Change in net unrealized gain on securities transferred to held to maturity, Net of Tax | (128) | (149) | (255) | (314) |
Securities available for sale and transferred securities, Reclassification adjustment for net (gains) losses included in net income, Net of Tax | (26) | 0 | (43) | 0 |
Total securities available for sale and transferred securities, Net of Tax | (163,576) | (503,002) | 41,893 | (1,222,695) |
Reclassification adjustment for net amortization of actuarial gain/lloss included in net income as a component of net periodic cost (benefit), Net of Tax | 687 | 586 | 1,374 | 1,171 |
Total defined-benefit post-retirement benefit plans, Net of Tax Amount | 687 | 586 | 1,374 | 1,171 |
Other comprehensive income (loss), net of tax | $ (162,889) | $ (502,416) | $ 43,267 | $ (1,221,524) |
Other Comprehensive Income - Sc
Other Comprehensive Income - Schedule of Accumulated Other Comprehensive Income, Net of Tax (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] | ||||
Beginning Balance | $ (1,348,294) | |||
Other comprehensive income (loss), net of tax | $ (162,889) | $ (502,416) | 43,267 | $ (1,221,524) |
Ending Balance | (1,305,027) | (1,305,027) | ||
Securities Available For Sale [Member] | ||||
Accumulated Other Comprehensive Income (Loss) [Roll Forward] | ||||
Beginning Balance | (1,313,791) | 380,209 | ||
Other comprehensive income (loss) before reclassifications | 41,936 | (1,222,695) | ||
Reclassification of amounts included in net income | (43) | 0 | ||
Other comprehensive income (loss), net of tax | 41,893 | (1,222,695) | ||
Ending Balance | (1,271,898) | (842,486) | (1,271,898) | (842,486) |
Defined Benefit Plans [Member] | ||||
Accumulated Other Comprehensive Income (Loss) [Roll Forward] | ||||
Beginning Balance | (34,503) | (32,891) | ||
Other comprehensive income (loss) before reclassifications | 0 | 0 | ||
Reclassification of amounts included in net income | 1,374 | 1,171 | ||
Other comprehensive income (loss), net of tax | 1,374 | 1,171 | ||
Ending Balance | (33,129) | (31,720) | (33,129) | (31,720) |
AOCI Attributable to Parent [Member] | ||||
Accumulated Other Comprehensive Income (Loss) [Roll Forward] | ||||
Beginning Balance | (1,348,294) | 347,318 | ||
Other comprehensive income (loss) before reclassifications | 41,936 | (1,222,695) | ||
Reclassification of amounts included in net income | 1,331 | 1,171 | ||
Other comprehensive income (loss), net of tax | 43,267 | (1,221,524) | ||
Ending Balance | $ (1,305,027) | $ (874,206) | $ (1,305,027) | $ (874,206) |
Operating Segments - Additional
Operating Segments - Additional Information (Detail) - Segment | 6 Months Ended | |
Jun. 30, 2023 | Jun. 30, 2022 | |
Segment Reporting [Abstract] | ||
Number of primary operating segments | 2 | 2 |
Operating Segments - Summary of
Operating Segments - Summary of Operating Results by Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | |
Segment Reporting Information [Line Items] | ||||
Interest Income (Expense), Net | $ 385,266 | $ 288,208 | $ 785,086 | $ 537,279 |
Credit loss expense | 9,901 | 0 | 19,005 | 0 |
Total non-interest income | 103,528 | 97,927 | 208,793 | 199,317 |
Total non-interest expense | 285,042 | 246,347 | 570,184 | 485,079 |
Income (loss) before income taxes | 193,851 | 139,788 | 404,690 | 251,517 |
Income tax expense (benefit) | 31,733 | 20,674 | 64,919 | 33,301 |
Net income (loss) | 162,118 | 119,114 | 339,771 | 218,216 |
Preferred stock dividends | 1,669 | 1,669 | 3,338 | 3,338 |
Net income (loss) available to common shareholders | 160,449 | 117,445 | 336,433 | 214,878 |
Revenues from (expenses to) external customers | 488,794 | 386,135 | 993,879 | 736,596 |
Bank | ||||
Segment Reporting Information [Line Items] | ||||
Interest Income (Expense), Net | 385,720 | 289,186 | 785,857 | 539,305 |
Credit loss expense | 9,901 | 1 | 19,003 | 0 |
Total non-interest income | 57,808 | 55,397 | 121,451 | 114,103 |
Total non-interest expense | 246,927 | 211,044 | 496,794 | 417,582 |
Income (loss) before income taxes | 186,700 | 133,538 | 391,511 | 235,826 |
Income tax expense (benefit) | 30,636 | 19,821 | 62,754 | 30,835 |
Net income (loss) | 156,064 | 113,717 | 328,757 | 204,991 |
Preferred stock dividends | 0 | 0 | 0 | 0 |
Net income (loss) available to common shareholders | 156,064 | 113,717 | 328,757 | 204,991 |
Revenues from (expenses to) external customers | 443,528 | 344,583 | 907,308 | 653,408 |
Frost Wealth Advisors [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest Income (Expense), Net | 2,090 | 958 | 3,744 | 1,658 |
Credit loss expense | 0 | (1) | 2 | 0 |
Total non-interest income | 46,147 | 43,054 | 88,185 | 86,283 |
Total non-interest expense | 35,558 | 33,158 | 69,505 | 64,068 |
Income (loss) before income taxes | 12,679 | 10,855 | 22,422 | 23,873 |
Income tax expense (benefit) | 2,663 | 2,279 | 4,709 | 5,013 |
Net income (loss) | 10,016 | 8,576 | 17,713 | 18,860 |
Preferred stock dividends | 0 | 0 | 0 | 0 |
Net income (loss) available to common shareholders | 10,016 | 8,576 | 17,713 | 18,860 |
Revenues from (expenses to) external customers | 48,237 | 44,012 | 91,929 | 87,941 |
Non-Banks [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest Income (Expense), Net | (2,544) | (1,936) | (4,515) | (3,684) |
Credit loss expense | 0 | 0 | 0 | 0 |
Total non-interest income | (427) | (524) | (843) | (1,069) |
Total non-interest expense | 2,557 | 2,145 | 3,885 | 3,429 |
Income (loss) before income taxes | (5,528) | (4,605) | (9,243) | (8,182) |
Income tax expense (benefit) | (1,566) | (1,426) | (2,544) | (2,547) |
Net income (loss) | (3,962) | (3,179) | (6,699) | (5,635) |
Preferred stock dividends | 1,669 | 1,669 | 3,338 | 3,338 |
Net income (loss) available to common shareholders | (5,631) | (4,848) | (10,037) | (8,973) |
Revenues from (expenses to) external customers | $ (2,971) | $ (2,460) | $ (5,358) | $ (4,753) |
Fair Value Measurements - Addit
Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | |||
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022 | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||||
Non-financial assets or non-financial liabilities | $ 0 | $ 0 | $ 0 | $ 0 | |
Remeasured and reported at fair value | 0 | $ 0 | 0 | $ 0 | |
Financial instruments using fair value measurement option | $ 0 | $ 0 | $ 0 |
Fair Value Measurements - Finan
Fair Value Measurements - Financial Assets and Financial Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale, at estimated fair value | $ 17,249,257 | $ 18,243,605 |
Trading account securities | 32,517 | 28,045 |
Derivative assets | 130,330 | 118,994 |
Derivative liabilities | 29,402 | 73,829 |
Interest rate swaps, caps and floors [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative assets | 94,362 | 86,793 |
Derivative liabilities | 94,291 | 95,533 |
Commodity swaps and options [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative assets | 65,814 | 106,685 |
Derivative liabilities | 64,802 | 105,392 |
Foreign Exchange Forward [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative assets | 11 | |
Derivative liabilities | 11 | |
U.S. Treasury [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale, at estimated fair value | 5,072,888 | 5,051,587 |
Trading account securities | 27,546 | 25,879 |
Residential Mortgage Backed Securities [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale, at estimated fair value | 6,792,775 | 6,376,236 |
States and political subdivisions [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale, at estimated fair value | 5,341,016 | 6,773,355 |
Trading account securities | 4,971 | 2,166 |
Other [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale, at estimated fair value | 42,578 | 42,427 |
Level 1 [Member] | Foreign Exchange Forward [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative assets | 11 | |
Derivative liabilities | 11 | |
Level 1 [Member] | U.S. Treasury [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale, at estimated fair value | 5,072,888 | 5,051,587 |
Trading account securities | 27,546 | 25,879 |
Level 2 [Member] | Interest rate swaps, caps and floors [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative assets | 94,362 | 86,793 |
Derivative liabilities | 94,291 | 95,533 |
Level 2 [Member] | Commodity swaps and options [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative assets | 65,814 | 106,685 |
Derivative liabilities | 64,802 | 105,392 |
Level 2 [Member] | Residential Mortgage Backed Securities [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale, at estimated fair value | 6,792,775 | 6,376,236 |
Level 2 [Member] | States and political subdivisions [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale, at estimated fair value | 5,341,016 | 6,773,355 |
Trading account securities | 4,971 | 2,166 |
Level 2 [Member] | Other [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale, at estimated fair value | $ 42,578 | $ 42,427 |
Fair Value Measurements - Impai
Fair Value Measurements - Impaired Loans Remeasured and Reported at Fair Value of Underlying Collateral (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Jun. 30, 2022 |
Level 2 [Member] | ||
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
Carrying value of impaired loans before allocations | $ 19,064 | $ 5,454 |
Impaired Financing Receivable, Related Allowance | (1,300) | (1,327) |
Loans receivable, fair value disclosure | 17,764 | 4,127 |
Level 3 [Member] | ||
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
Carrying value of impaired loans before allocations | 20,171 | 3,614 |
Impaired Financing Receivable, Related Allowance | (2,100) | |
Impaired Financing Receivable, Reversal of Specific Valuation Allowance Allocations | 6,877 | |
Loans receivable, fair value disclosure | $ 18,071 | $ 10,491 |
Fair Value Measurements - Estim
Fair Value Measurements - Estimated Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 | Jun. 30, 2022 | Dec. 31, 2021 |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
Cash and cash equivalents | $ 7,107,336 | $ 12,028,132 | $ 13,658,585 | $ 16,583,000 |
Securities held to maturity, net of allowance for credit losses of $267 at June 30, 2023 and $158 at December 31, 2022 | 3,691,220 | 2,639,083 | ||
Loans, net | 17,512,692 | 16,927,348 | ||
Deposits | 40,700,830 | 43,954,196 | ||
Federal funds purchased | 13,525 | 51,650 | ||
Repurchase agreements | 3,569,870 | 4,660,641 | ||
Junior subordinated deferrable interest debentures | 123,098 | 123,069 | ||
Subordinated notes | 99,413 | 99,335 | ||
Carrying Amount [Member] | Level 2 [Member] | ||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
Cash and cash equivalents | 7,107,336 | 12,028,132 | ||
Securities held to maturity, net of allowance for credit losses of $267 at June 30, 2023 and $158 at December 31, 2022 | 3,691,220 | 2,639,083 | ||
Cash surrender value of life insurance policies | 190,575 | 190,188 | ||
Accrued interest receivable | 236,967 | 243,682 | ||
Deposits | 40,700,830 | 43,954,196 | ||
Federal funds purchased | 13,525 | 51,650 | ||
Repurchase agreements | 3,569,870 | 4,660,641 | ||
Junior subordinated deferrable interest debentures | 123,098 | 123,069 | ||
Subordinated notes | 99,413 | 99,335 | ||
Accrued interest payable | 40,523 | 18,444 | ||
Carrying Amount [Member] | Level 3 [Member] | ||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
Loans, net | 17,512,692 | 16,927,348 | ||
Estimated Fair Value [Member] | Level 2 [Member] | ||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
Cash and cash equivalents | 7,107,336 | 12,028,132 | ||
Securities held to maturity, net of allowance for credit losses of $267 at June 30, 2023 and $158 at December 31, 2022 | 3,543,929 | 2,467,865 | ||
Cash surrender value of life insurance policies | 190,575 | 190,188 | ||
Accrued interest receivable | 236,967 | 243,682 | ||
Deposits | 40,683,556 | 43,920,741 | ||
Federal funds purchased | 13,525 | 51,650 | ||
Repurchase agreements | 3,569,870 | 4,660,641 | ||
Junior subordinated deferrable interest debentures | 123,712 | 123,712 | ||
Subordinated notes | 94,571 | 97,014 | ||
Accrued interest payable | 40,523 | 18,444 | ||
Estimated Fair Value [Member] | Level 3 [Member] | ||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
Loans, net | $ 16,933,702 | $ 16,343,417 |