Document And Entity Information
Document And Entity Information | 6 Months Ended |
Jun. 30, 2018USD ($)shares | |
Document and Entity Information [Abstract] | |
Entity Registrant Name | BOK FINANCIAL CORP ET AL |
Entity Central Index Key | 875,357 |
Current Fiscal Year End Date | --12-31 |
Entity Well-known Seasoned Issuer | Yes |
Entity Voluntary Filers | No |
Entity Current Reporting Status | Yes |
Entity Filer Category | Large Accelerated Filer |
Entity Public Float | $ | $ 2,441,480,672 |
Entity Common Stock, Shares Outstanding | shares | 65,439,090 |
Document Fiscal Year Focus | 2,018 |
Document Fiscal Period Focus | Q2 |
Document Type | 10-Q |
Amendment Flag | false |
Document Period End Date | Jun. 30, 2018 |
Consolidated Statements of Earn
Consolidated Statements of Earnings (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | |
Interest revenue [Abstract] | ||||
Loans | $ 210,694 | $ 168,952 | $ 398,785 | $ 329,847 |
Residential mortgage loans held for sale | 2,333 | 2,386 | 4,177 | 4,222 |
Trading securities | 12,988 | 3,339 | 20,726 | 8,522 |
Investment securities | 3,663 | 4,005 | 7,520 | 8,176 |
Available for sale securities | 47,427 | 43,363 | 93,386 | 86,735 |
Fair value option securities | 3,927 | 3,539 | 8,746 | 5,919 |
Restricted equity securities | 5,408 | 4,399 | 10,525 | 8,708 |
Interest-bearing cash and cash equivalents | 7,740 | 5,198 | 15,722 | 9,442 |
Total interest revenue | 294,180 | 235,181 | 559,587 | 461,571 |
Interest expense [Abstract] | ||||
Deposits | 20,963 | 12,622 | 39,182 | 23,976 |
Borrowed funds | 32,607 | 15,352 | 58,056 | 27,181 |
Subordinated debentures | 2,048 | 2,003 | 4,051 | 4,028 |
Total interest expense | 55,618 | 29,977 | 101,289 | 55,185 |
Net interest revenue | 238,562 | 205,204 | 458,298 | 406,386 |
Provision for credit losses | 0 | 0 | (5,000) | 0 |
Net interest revenue after provision for credit losses | 238,562 | 205,204 | 463,298 | 406,386 |
Other operating revenue [Abstract] | ||||
Brokerage and trading revenue | 26,488 | 31,764 | 57,136 | 65,387 |
Transaction card revenue | 20,975 | 30,228 | 41,965 | 57,608 |
Fiduciary and asset management revenue | 41,699 | 41,808 | 83,531 | 80,439 |
Deposit service charges and fees | 27,827 | 28,422 | 54,988 | 56,199 |
Mortgage banking revenue | 26,346 | 30,276 | 52,371 | 55,467 |
Other revenue | 14,518 | 14,984 | 26,848 | 26,736 |
Total fees and commissions | 157,853 | 177,482 | 316,839 | 341,836 |
Other gains, net | 3,983 | 6,108 | 3,319 | 9,735 |
Gain (loss) on derivatives, net | (3,057) | 3,241 | (8,742) | 2,791 |
Gain (loss) on fair value option securities, net | (3,341) | 1,984 | (20,905) | 844 |
Change in fair value of mortgage servicing rights | 1,723 | (6,943) | 22,929 | (5,087) |
Gain (loss) on available for sale securities, net | (762) | 380 | (1,052) | 2,429 |
Total other operating revenue | 156,399 | 182,252 | 312,388 | 352,548 |
Other operating expense [Abstract] | ||||
Personnel | 138,947 | 143,744 | 278,894 | 280,169 |
Business promotion | 7,686 | 7,738 | 13,696 | 14,455 |
Professional fees and services | 14,978 | 12,419 | 25,178 | 23,836 |
Net occupancy and equipment | 22,761 | 21,125 | 46,807 | 42,749 |
Insurance | 6,245 | 689 | 12,838 | 7,093 |
Data processing and communications | 27,739 | 36,330 | 55,556 | 71,232 |
Printing, postage and supplies | 4,011 | 4,140 | 8,100 | 7,991 |
Net losses and operating expenses of repossessed assets | 2,722 | 2,267 | 10,427 | 3,276 |
Amortization of intangible assets | 1,386 | 1,803 | 2,686 | 3,605 |
Mortgage banking costs | 12,890 | 12,072 | 23,039 | 25,075 |
Other expense | 7,111 | 8,558 | 13,685 | 16,115 |
Total other operating expense | 246,476 | 250,885 | 490,906 | 495,596 |
Net income before taxes | 148,485 | 136,571 | 284,780 | 263,338 |
Federal and state income taxes | 33,330 | 47,705 | 64,278 | 85,808 |
Net income | 115,155 | 88,866 | 220,502 | 177,530 |
Net income attributable to non-controlling interests | 783 | 719 | 568 | 1,027 |
Net income attributable to BOK Financial Corporation shareholders | $ 114,372 | $ 88,147 | $ 219,934 | $ 176,503 |
Earnings per share: [Abstract] | ||||
Basic | $ 1.75 | $ 1.35 | $ 3.36 | $ 2.70 |
Diluted | $ 1.75 | $ 1.35 | $ 3.36 | $ 2.69 |
Average shares used in computation: [Abstract] | ||||
Basic | 64,901,975 | 64,729,752 | 64,874,567 | 64,722,744 |
Diluted | 64,937,226 | 64,793,134 | 64,912,552 | 64,788,322 |
Dividends declared per share | $ 0.45 | $ 0.44 | $ 0.90 | $ 0.88 |
Consolidated Statements of Comp
Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||||
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | |||
Statement of Comprehensive Income [Abstract] | ||||||
Net income | $ 115,155 | $ 88,866 | $ 220,502 | $ 177,530 | ||
Other comprehensive income (loss) before income taxes: | ||||||
Net change in unrealized gain (loss) | (33,117) | 21,958 | (130,523) | 33,369 | ||
Reclassification adjustments included in earnings: | ||||||
Loss (gain) on available for sale securities, net | 762 | (380) | 1,052 | (2,429) | ||
Other comprehensive income (loss) before income taxes | (32,355) | 21,578 | (129,471) | 30,940 | ||
Federal and state income taxes | (8,241) | 8,393 | (33,049) | [1] | 12,009 | [2] |
Other comprehensive income (loss), net of income taxes | (24,114) | 13,185 | (96,422) | 18,931 | ||
Comprehensive income | 91,041 | 102,051 | 124,080 | 196,461 | ||
Comprehensive income attributable to non-controlling interests | 783 | 719 | 568 | 1,027 | ||
Comprehensive income attributable to BOK Financial Corp. shareholders | $ 90,258 | $ 101,332 | $ 123,512 | $ 195,434 | ||
[1] | Calculated using a 25 percent blended federal and state statutory tax rate. | |||||
[2] | Calculated using a 39 percent blended federal and state statutory tax rate. |
Consolidated Balance Sheets (Un
Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017 | Jun. 30, 2017 |
Assets [Abstract] | |||
Cash and due from banks | $ 585,801 | $ 602,510 | $ 561,587 |
Interest-bearing cash and cash equivalents | 872,999 | 1,714,544 | 2,078,831 |
Trading securities | 1,909,615 | 462,676 | 441,414 |
Investment securities | 392,013 | 461,793 | 490,426 |
Available for sale securities | 8,162,866 | 8,321,578 | 8,341,041 |
Fair value option securities | 482,227 | 755,054 | 445,169 |
Restricted equity securities | 347,721 | 320,189 | 311,033 |
Residential mortgage loans held for sale | 223,301 | 221,378 | 287,259 |
Loans | 18,003,696 | 17,153,424 | 17,183,645 |
Allowance for loan losses | (215,142) | (230,682) | (250,061) |
Loans, net of allowance | 17,788,554 | 16,922,742 | 16,933,584 |
Premises and equipment, net | 320,810 | 317,335 | 321,038 |
Receivables | 212,893 | 178,800 | 170,094 |
Goodwill | 453,093 | 447,430 | 446,697 |
Intangible assets, net | 28,273 | 28,658 | 40,755 |
Mortgage servicing rights | 278,719 | 252,867 | 245,239 |
Real estate and other repossessed assets, net of allowance | 27,891 | 28,437 | 39,436 |
Derivative contracts, net | 373,373 | 220,502 | 280,289 |
Cash surrender value of bank-owned life insurance | 321,024 | 316,498 | 312,774 |
Receivable on unsettled securities sales | 604,552 | 340,077 | 158,125 |
Other assets | 447,382 | 359,092 | 358,741 |
Total assets | 33,833,107 | 32,272,160 | 32,263,532 |
Deposits [Abstract] | |||
Noninterest-bearing demand deposits | 9,373,959 | 9,243,338 | 9,568,895 |
Interest-bearing deposits: [Abstract] | |||
Transaction | 10,164,099 | 10,250,393 | 10,087,139 |
Savings | 503,474 | 469,158 | 464,318 |
Time | 2,127,732 | 2,098,416 | 2,196,122 |
Total deposits | 22,169,264 | 22,061,305 | 22,316,474 |
Funds purchased and repurchase agreements | 880,027 | 574,964 | 464,323 |
Other borrowings | 5,929,445 | 5,134,897 | 5,232,343 |
Subordinated debentures | 144,697 | 144,677 | 144,658 |
Accrued interest, taxes and expense | 160,568 | 164,895 | 133,198 |
Derivative contracts, net | 234,856 | 171,963 | 285,819 |
Due on unsettled securities purchases | 571,034 | 338,745 | 31,214 |
Other liabilities | 167,171 | 162,380 | 205,958 |
Total liabilities | 30,257,062 | 28,753,826 | 28,813,987 |
Shareholders' equity: [Abstract] | |||
Common stock | 4 | 4 | 4 |
Capital surplus | 1,040,202 | 1,035,895 | 1,017,495 |
Retained earnings | 3,212,653 | 3,048,487 | 2,942,447 |
Treasury stock | (564,123) | (552,845) | (545,441) |
Accumulated other comprehensive gain (loss) | (135,305) | (36,174) | 7,964 |
Total shareholders’ equity | 3,553,431 | 3,495,367 | 3,422,469 |
Non-controlling interests | 22,614 | 22,967 | 27,076 |
Total equity | 3,576,045 | 3,518,334 | 3,449,545 |
Total liabilities and equity | $ 33,833,107 | $ 32,272,160 | $ 32,263,532 |
Consolidated Balance Sheets (Pa
Consolidated Balance Sheets (Parenthetical) (Unaudited) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017 | Jun. 30, 2017 |
Investment securities [Abstract] | |||
Investment Securities, fair value | $ 403,384 | $ 480,035 | $ 515,675 |
Allowance for real estate and other repossessed assets | $ 17,656 | $ 12,648 | $ 8,576 |
Shareholders' equity: [Abstract] | |||
Common stock, par value (in dollars per share) | $ 0.00006 | $ 0.00006 | $ 0.00006 |
Common stock, shares authorized (in shares) | 2,500,000,000 | 2,500,000,000 | 2,500,000,000 |
Common stock, shares issued (in shares) | 75,313,559 | 75,147,686 | 75,089,152 |
Common stock, shares outstanding (in shares) | 75,313,559 | 75,147,686 | 75,089,152 |
Treasury stock, shares at cost (in shares) | 9,874,469 | 9,752,749 | 9,672,749 |
Consolidated Statements of Chan
Consolidated Statements of Changes in Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock [Member] | Capital Surplus [Member] | Retained Earnings [Member] | Treasury Stock [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Total Shareholders' Equity [Member] | Non-Controlling Interests [Member] |
Balance, beginning of period (in shares) at Dec. 31, 2016 | 74,993 | 9,656 | ||||||
Balance, beginning of period at Dec. 31, 2016 | $ 3,306,357 | $ 4 | $ 1,006,535 | $ 2,823,334 | $ (544,052) | $ (10,967) | $ 3,274,854 | $ 31,503 |
Net income (loss) | 177,530 | 176,503 | 176,503 | 1,027 | ||||
Other comprehensive income (loss) | 18,931 | 18,931 | 18,931 | |||||
Stock options exercised (in shares) | 41 | |||||||
Stock options exercised | 1,977 | 1,977 | 1,977 | |||||
Non-vested shares awarded, net (in shares) | 55 | |||||||
Vesting of non-vested shares (in shares) | 17 | |||||||
Vesting of non-vested shares | (1,389) | $ (1,389) | (1,389) | |||||
Share-based compensation | 8,983 | 8,983 | 8,983 | |||||
Cash dividends on common stock | (57,390) | (57,390) | (57,390) | |||||
Capital calls and distributions, net | (5,454) | (5,454) | ||||||
Balance, end of period (in shares) at Jun. 30, 2017 | 75,089 | 9,673 | ||||||
Balance, end of period at Jun. 30, 2017 | 3,449,545 | $ 4 | 1,017,495 | 2,942,447 | $ (545,441) | 7,964 | 3,422,469 | 27,076 |
Transition adjustment for unrealized gains and losses on equity securities | (2,709) | 2,709 | (2,709) | |||||
Balance, beginning of period, adjusted | 3,518,334 | $ 4 | 1,035,895 | 3,051,196 | $ (552,845) | (38,883) | 3,495,367 | 22,967 |
Balance, beginning of period (in shares) at Dec. 31, 2017 | 75,148 | 9,753 | ||||||
Balance, beginning of period at Dec. 31, 2017 | 3,518,334 | $ 4 | 1,035,895 | 3,048,487 | $ (552,845) | (36,174) | 3,495,367 | 22,967 |
Net income (loss) | 220,502 | 219,934 | 219,934 | 568 | ||||
Other comprehensive income (loss) | (96,422) | (96,422) | (96,422) | |||||
Repurchase of common stock (in shares) | 90 | |||||||
Repurchase of common stock | (8,408) | $ (8,408) | (8,408) | |||||
Stock options exercised (in shares) | 46 | |||||||
Stock options exercised | 2,426 | 2,426 | 2,426 | |||||
Non-vested shares awarded, net (in shares) | 120 | |||||||
Vesting of non-vested shares (in shares) | 31 | |||||||
Vesting of non-vested shares | (2,870) | $ (2,870) | (2,870) | |||||
Share-based compensation | 1,881 | 1,881 | 1,881 | |||||
Cash dividends on common stock | (58,477) | (58,477) | (58,477) | |||||
Capital calls and distributions, net | (921) | (921) | ||||||
Balance, end of period (in shares) at Jun. 30, 2018 | 75,314 | 9,874 | ||||||
Balance, end of period at Jun. 30, 2018 | $ 3,576,045 | $ 4 | $ 1,040,202 | $ 3,212,653 | $ (564,123) | $ (135,305) | $ 3,553,431 | $ 22,614 |
Consolidated Statements of Cash
Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 6 Months Ended | |
Jun. 30, 2018 | Jun. 30, 2017 | |
Cash Flows From Operating Activities: [Abstract] | ||
Net income | $ 220,502 | $ 177,530 |
Adjustments to reconcile net income to net cash provided by operating activities: | ||
Provision for credit losses | (5,000) | 0 |
Change in fair value of mortgage servicing rights due to market changes | (22,929) | 5,087 |
Change in the fair value of mortgage servicing rights due to principal payments | 16,797 | 16,261 |
Net unrealized losses (gains) from derivative contracts | 6,674 | (5,928) |
Share-based compensation | 1,881 | 8,983 |
Depreciation and amortization | 27,459 | 25,864 |
Net amortization of securities discounts and premiums | 12,855 | 15,377 |
Net losses (gains) on financial instruments and other losses (gains), net | 4,530 | (4,351) |
Net gain on mortgage loans held for sale | (19,314) | (25,229) |
Mortgage loans originated for sale | (1,438,868) | (1,613,997) |
Proceeds from sale of mortgage loans held for sale | 1,456,312 | 1,651,018 |
Capitalized mortgage servicing rights | (19,720) | (19,514) |
Change in trading and fair value option securities | (1,174,526) | (472,682) |
Change in receivables | (335,369) | 479,774 |
Change in other assets | 1,737 | (17,548) |
Change in accrued interest, taxes and expense | (4,327) | (19,703) |
Change in other liabilities | 334,765 | 27,420 |
Net cash provided by (used in) operating activities | (936,541) | 228,362 |
Cash Flows From Investing Activities: [Abstract] | ||
Proceeds from maturities or redemptions of investment securities | 71,722 | 71,654 |
Proceeds from maturities or redemptions of available for sale securities | 819,596 | 899,096 |
Purchases of investment securities | (3,968) | (18,802) |
Purchases of available for sale securities | (1,020,018) | (1,242,070) |
Proceeds from sales of available for sale securities | 187,533 | 700,412 |
Change in amount receivable on unsettled available for sale securities transactions | 38,075 | (25,989) |
Loans originated, net of principal collected | (847,351) | (159,924) |
Net payments on derivative asset contracts | (70,987) | 420,996 |
Acquisitions, net of cash acquired | 13,870 | 0 |
Proceeds from disposition of assets | 97,027 | 127,699 |
Purchases of assets | (121,889) | (106,362) |
Net cash provided by (used in) investing activities | (864,130) | 666,710 |
Cash Flows From Financing Activities: [Abstract] | ||
Net change in demand deposits, transaction deposits and savings accounts | 78,643 | (405,943) |
Net change in time deposits | 29,316 | (25,678) |
Net change in other borrowed funds | 1,057,118 | 64,833 |
Net proceeds on derivative liability contracts | 64,144 | (422,016) |
Net change in derivative margin accounts | (118,628) | 27,327 |
Change in amount due on unsettled available for sale securities transactions | (100,847) | 26,128 |
Issuance of common and treasury stock, net | (444) | 588 |
Repurchase of common stock | 8,408 | 0 |
Dividends paid | (58,477) | (57,390) |
Net cash provided by (used in) financing activities | 942,417 | (792,151) |
Net increase (decrease) in cash and cash equivalents | (858,254) | 102,921 |
Cash and cash equivalents at beginning of period | 2,317,054 | 2,537,497 |
Cash and cash equivalents at end of period | 1,458,800 | 2,640,418 |
Supplemental Cash Flow Information: [Abstract] | ||
Cash paid for interest | 100,532 | 54,881 |
Cash paid for taxes | 29,623 | 60,654 |
Net loans and bank premises transferred to repossessed real estate and other assets | 3,886 | 2,049 |
Residential mortgage loans guaranteed by U.S. government agencies that became eligible for repurchase during the period | 42,493 | 59,171 |
Conveyance of other real estate owned guaranteed by U.S. government agencies | $ 23,845 | $ 22,602 |
Significant Accounting Policies
Significant Accounting Policies | 6 Months Ended |
Jun. 30, 2018 | |
Accounting Policies [Abstract] | |
Significant Accounting Policies [Text Block] | Significant Accounting Policies Basis of Presentation The accompanying unaudited consolidated financial statements of BOK Financial Corporation (“BOK Financial” or “the Company”) have been prepared in accordance with accounting principles for interim financial information generally accepted in the United States and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. The unaudited consolidated financial statements include accounts of BOK Financial and its subsidiaries, principally BOKF, NA (“the Bank”), BOK Financial Securities, Inc., The Milestone Group, Inc. and Cavanal Hill Investment Management Inc. Operating divisions of the Bank include Bank of Albuquerque, Bank of Arizona, Bank of Arkansas, Bank of Oklahoma, Bank of Texas, Colorado State Bank and Trust, Mobank, BOK Financial Mortgage and the TransFund electronic funds network. Certain reclassifications have been made to conform to the current period presentation. The financial information should be read in conjunction with BOK Financial’s 2017 Form 10-K filed with the Securities and Exchange Commission, which contains audited financial statements. Amounts presented as of December 31, 2017 have been derived from the audited financial statements included in BOK Financial’s 2017 Form 10-K but do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. Operating results for the six -month period ended June 30, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018 . Newly Adopted and Pending Accounting Policies Financial Accounting Standards Board (“FASB”) FASB Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers ("ASU 2014-09") On May 28, 2014, the FASB issued ASU 2014-09 to clarify the principles for recognizing revenue by providing a more robust framework that will give greater consistency and comparability in revenue recognition practices. In the new framework, an entity recognizes revenue in an amount that reflects the consideration to which the entity expects to be entitled in exchange for goods or services. The new model requires the identification of performance obligations included in contracts with customers, a determination of the transaction price and an allocation of the price to those performance obligations. The entity recognizes revenue when performance obligations are satisfied. Revenue from financial assets and liabilities is explicitly excluded from the scope of ASU 2014-09. Management adopted the standard in the first quarter of 2018 using the modified retrospective transition method. There were no significant cumulative effect adjustments as a result of implementation as of January 1, 2018 as our current revenue recognition policies generally conform with the principals in ASU 2014-09. FASB Accounting Standards Update No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net) ("ASU 2016-08") On March 17, 2016, the FASB Issued ASU 2016-08 to amend the principal versus agent implementation guidance in ASU 2014-09. The ASU clarifies that an entity should evaluate whether it is the principal or the agent for each specified good or service promised in a contract with a customer. Management adopted the standard in the first quarter of 2018. Interchange fees paid to issuing banks for card transactions processed related to its merchant processing services previously included in data processing and communication expense are now netted against the amounts charged to the merchant in transaction card processing revenue. FASB Accounting Standards Update No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities ("ASU 2016-01") On January 5, 2016, the FASB issued ASU 2016-01 over the recognition and measurement of financial assets and liabilities. The update requires equity investments, in general, to be measured at fair value with changes in fair value recognized in earnings. It also eliminates the requirement to disclose the methods and significant assumptions used to estimate the fair value for financial instruments measured at amortized cost, requires entities to use the exit price notion when measuring fair value, requires an entity to present separately in other comprehensive income the portion of the total change in fair value of a liability resulting from a change in the instrument-specific credit risk when the fair value option has been elected, requires separate presentation of financial assets and liabilities by measurement category and form on the balance sheet or accompanying notes, clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity's other deferred tax assets, and simplifies the impairment assessment of equity investments without readily determinable fair values. Management adopted the standard in the first quarter of 2018. Upon adoption, net unrealized gains of $2.7 million from equity securities were reclassified from other comprehensive income to retained earnings. FASB Accounting Standards Update No. 2016-02, Leases (Topic 842) ("ASU 2016-02") On February 25, 2016, the FASB issued ASU 2016-02 to increase transparency and comparability by recognizing lease assets and liabilities on the balance sheet and disclosing key information about leasing arrangements. Lessees will be required to recognize an obligation for future lease payments measured on a discounted basis and a right-of-use asset. The ASU is effective for the Company for interim and annual periods beginning after December 15, 2018 and requires transition through a modified retrospective approach for leases existing at or entered into after January 1, 2017. The Company currently estimates that implementation of ASU 2016-02 will increase reported right of use assets and liabilities by approximately $100 million to $150 million . FASB Accounting Standards Update No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Assets Measured at Amortized Cost ("ASU 2016-13") On June 16, 2016, the FASB issued ASU 2016-13 in order to provide more timely recording of credit losses on loans and other financial instruments. The ASU adds an impairment model (known as the current expected credit loss ("CECL") model) that is based on expected credit losses rather than incurred credit losses. It requires measurement of all expected credit losses for financial assets carried at amortized cost, including loans and investment securities, based on historical experience, current conditions, and reasonable and supportable forecasts. ASU 2016-13 also changes the recognition of other-than-temporary impairment of available for sale securities to an allowance methodology from a direct write-down methodology. ASU 2016-13 will be effective for the Company for annual reporting periods beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for annual reporting periods beginning after December 15, 2018. ASU 2016-13 will be applied through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. The Company has established a CECL implementation team in order to evaluate the impact the adoption of ASU 2016-13 will have on the Company's financial statements. The CECL implementation team, overseen by the Chief Credit Officer, Chief Financial Officer, and Chief Risk Officer, has developed a project plan that incorporates input from various departments within the bank including Credit, Financial Reporting, Risk, and Information Technology among others. Key implementation activities for 2018 include portfolio segmentation, model development, as well as process and information systems enhancements. FASB Accounting Standards Update No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15") On August 26, 2016, the FASB issued ASU 2016-15, which amends guidance in ASC 230 on the classification of certain cash receipts and payments in the statement of cash flows. The amendments address eight cash flow issues. Management adopted the standard in first quarter of 2018. Adoption of ASU 2016-15 did not have a material impact on the Company's financial statements. FASB Accounting Standards Update No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities ("ASU 2017-12") On August 28, 2017, the FASB issued ASU 2017-12, which amends the hedge accounting recognition and presentation requirements in ASC 815 in order to improve transparency and understandability of information and reduce the complexity. The update expands the types of transactions eligible for hedge accounting, eliminates the requirement to separately measure and present hedge ineffectiveness, simplifies hedge effectiveness assessments and updates documentation and presentation requirements. The update allows the reclassification of certain debt securities from held to maturity to available for sale if the debt security is eligible to be hedged under the last-of-layer method. ASU 2017-12 is effective for the Company for fiscal years beginning after December 15, 2018, and interim periods therein; however, early adoption is permitted. The Company is evaluating the impact the adoption of ASU 2017-12 will have on the Company's financial statements. FASB Accounting Standards Update No. 2018-05, Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118 (SAB 118). On March 13, 2018, the FASB issued ASU 2018-05, which adds SEC guidance related to SAB 118 - Income Tax Accounting Implications of the Tax Cuts and Jobs Act . ASU 2018-05 was effective upon issuance. |
Securities
Securities | 6 Months Ended |
Jun. 30, 2018 | |
Marketable Securities [Abstract] | |
Securities [Text Block] | Securities Trading Securities The fair value and net unrealized gain (loss) included in trading securities are as follows (in thousands): June 30, 2018 December 31, 2017 June 30, 2017 Fair Value Net Unrealized Gain (Loss) Fair Value Net Unrealized Gain (Loss) Fair Value Net Unrealized Gain (Loss) U.S. government agency debentures $ 28,750 $ 10 $ 21,196 $ 8 $ 20,954 $ (9 ) U.S. government agency residential mortgage-backed securities 1,605,001 1,923 392,673 (517 ) 365,171 (1,032 ) Municipal and other tax-exempt securities 70,606 231 13,559 83 45,444 230 Asset-backed securities 193,271 250 23,885 (26 ) — — Other trading securities 11,987 32 11,363 4 9,845 (175 ) Total trading securities $ 1,909,615 $ 2,446 $ 462,676 $ (448 ) $ 441,414 $ (986 ) Investment Securities The amortized cost and fair values of investment securities are as follows (in thousands): June 30, 2018 Amortized Fair Gross Unrealized Cost Value Gain Loss Municipal and other tax-exempt $ 173,097 $ 174,205 $ 1,779 $ (671 ) U.S. government agency residential mortgage-backed securities 13,989 13,984 232 (237 ) Other debt securities 204,927 215,195 12,259 (1,991 ) Total investment securities $ 392,013 $ 403,384 $ 14,270 $ (2,899 ) December 31, 2017 Amortized Fair Gross Unrealized Cost Value Gain Loss Municipal and other tax-exempt $ 228,186 $ 230,349 $ 2,967 $ (804 ) U.S. government agency residential mortgage-backed securities 15,891 16,242 446 (95 ) Other debt securities 217,716 233,444 17,095 (1,367 ) Total investment securities $ 461,793 $ 480,035 $ 20,508 $ (2,266 ) June 30, 2017 Amortized Fair Gross Unrealized Cost Value Gain Loss Municipal and other tax-exempt $ 267,375 $ 270,531 $ 3,384 $ (228 ) U.S. government agency residential mortgage-backed securities 18,035 18,642 668 (61 ) Other debt securities 205,016 226,502 22,040 (554 ) Total investment securities $ 490,426 $ 515,675 $ 26,092 $ (843 ) The amortized cost and fair values of investment securities at June 30, 2018 , by contractual maturity, are as shown in the following table (dollars in thousands): Less than One Year One to Five Years Six to Ten Years Over Ten Years Total Weighted Average Maturity² Municipal and other tax-exempt: Amortized cost $ 60,535 $ 62,005 $ 28,117 $ 22,440 $ 173,097 4.02 Fair value 60,487 61,736 29,038 22,944 174,205 Nominal yield¹ 2.07 % 2.58 % 5.81 % 5.12 % 3.25 % Other debt securities: Amortized cost 14,877 52,170 123,762 14,118 204,927 5.99 Fair value 15,023 54,233 132,912 13,027 215,195 Nominal yield 3.99 % 4.69 % 5.67 % 4.34 % 5.21 % Total fixed maturity securities: Amortized cost $ 75,412 $ 114,175 $ 151,879 $ 36,558 $ 378,024 5.08 Fair value 75,510 115,969 161,950 35,971 389,400 Nominal yield 2.45 % 3.54 % 5.69 % 4.82 % 4.31 % Residential mortgage-backed securities: Amortized cost $ 13,989 ³ Fair value 13,984 Nominal yield 4 2.76 % Total investment securities: Amortized cost $ 392,013 Fair value 403,384 Nominal yield 4.26 % 1 Calculated on a taxable equivalent basis using a 25 percent effective tax rate. 2 Expected maturities may differ from contractual maturities, because borrowers may have the right to call or prepay obligations with or without penalty. 3 The average expected lives of residential mortgage-backed securities were 5.0 years based upon current prepayment assumptions. 4 The nominal yield on residential mortgage-backed securities is based upon prepayment assumptions at the purchase date. Actual yields earned may differ significantly based upon actual prepayments. See Quarterly Financial Summary - Unaudited for current yields on the investment securities portfolio. Available for Sale Securities The amortized cost and fair value of available for sale securities are as follows (in thousands): June 30, 2018 Amortized Fair Gross Unrealized Cost Value Gain Loss OTTI U.S. Treasury $ 494 $ 490 $ — $ (4 ) $ — Municipal and other tax-exempt 10,590 10,697 111 (4 ) — Residential mortgage-backed securities: U. S. government agencies: FNMA 3,088,585 3,007,885 2,774 (83,474 ) — FHLMC 1,580,185 1,538,582 738 (42,341 ) — GNMA 772,785 758,093 915 (15,607 ) — Total U.S. government agencies 5,441,555 5,304,560 4,427 (141,422 ) — Private issue 65,376 83,224 18,221 — (373 ) Total residential mortgage-backed securities 5,506,931 5,387,784 22,648 (141,422 ) (373 ) Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,799,953 2,738,451 1,815 (63,317 ) — Other debt securities 25,500 25,444 12 (68 ) — Total available for sale securities $ 8,343,468 $ 8,162,866 $ 24,586 $ (204,815 ) $ (373 ) December 31, 2017 Amortized Fair Gross Unrealized Cost Value Gain Loss OTTI U.S. Treasury $ 1,000 $ 1,000 $ — $ — $ — Municipal and other tax-exempt 27,182 27,080 181 (283 ) — Residential mortgage-backed securities: U. S. government agencies: FNMA 3,021,551 2,997,563 11,549 (35,537 ) — FHLMC 1,545,971 1,531,009 3,148 (18,110 ) — GNMA 787,626 780,580 1,607 (8,653 ) — Total U.S. government agencies 5,355,148 5,309,152 16,304 (62,300 ) — Private issue 74,311 93,221 19,301 — (391 ) Total residential mortgage-backed securities 5,429,459 5,402,373 35,605 (62,300 ) (391 ) Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,858,885 2,834,961 1,963 (25,887 ) — Other debt securities 25,500 25,481 50 (69 ) — Perpetual preferred stock 12,562 15,767 3,205 — — Equity securities and mutual funds 14,487 14,916 515 (86 ) — Total available for sale securities $ 8,369,075 $ 8,321,578 $ 41,519 $ (88,625 ) $ (391 ) June 30, 2017 Amortized Fair Gross Unrealized Cost Value Gain Loss OTTI U.S. Treasury $ 1,000 $ 998 $ — $ (2 ) $ — Municipal and other tax-exempt 32,885 32,765 293 (413 ) — Residential mortgage-backed securities: U. S. government agencies: FNMA 3,005,920 3,008,531 24,213 (21,602 ) — FHLMC 1,412,376 1,412,472 7,785 (7,689 ) — GNMA 938,086 936,365 3,641 (5,362 ) — Other 25,000 25,009 52 (43 ) — Total U.S. government agencies 5,381,382 5,382,377 35,691 (34,696 ) — Private issue 86,656 103,383 16,727 — — Total residential mortgage-backed securities 5,468,038 5,485,760 52,418 (34,696 ) — Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,788,543 2,782,070 7,804 (14,277 ) — Other debt securities 4,400 4,152 — (248 ) — Perpetual preferred stock 12,562 16,568 4,006 — — Equity securities and mutual funds 17,572 18,728 1,219 (63 ) — Total available for sale securities $ 8,325,000 $ 8,341,041 $ 65,740 $ (49,699 ) $ — The amortized cost and fair values of available for sale securities at June 30, 2018 , by contractual maturity, are as shown in the following table (dollars in thousands): Less than One Year One to Five Years Six to Ten Years Over Ten Years Total Weighted Average Maturity 4 U.S. Treasuries: Amortized cost $ — $ 494 $ — $ — $ 494 1.59 Fair value — 490 — — 490 Nominal yield — % 1.99 % — % — % 1.99 % Municipal and other tax-exempt: Amortized cost $ 4,574 $ 2,303 $ — $ 3,713 $ 10,590 6.53 Fair value 4,580 2,401 — 3,716 10,697 Nominal yield¹ 3.45 % 6.27 % — % 3.98 % 5 4.25 % Commercial mortgage-backed securities: Amortized cost $ 8,070 $ 987,244 $ 1,548,520 $ 256,119 $ 2,799,953 6.89 Fair value 8,041 968,540 1,512,106 249,764 2,738,451 Nominal yield 1.67 % 1.96 % 2.17 % 2.20 % 2.10 % Other debt securities: Amortized cost $ — $ — $ — $ 25,500 $ 25,500 14.18 Fair value — — — 25,444 25,444 Nominal yield — % — % — % 1.59 % 5 1.59 % Total fixed maturity securities: Amortized cost $ 12,644 $ 990,041 $ 1,548,520 $ 285,332 $ 2,836,537 6.95 Fair value 12,621 971,431 1,512,106 278,924 2,775,082 Nominal yield 2.31 % 1.97 % 2.17 % 2.17 % 2.10 % Residential mortgage-backed securities: Amortized cost $ 5,506,931 2 Fair value 5,387,784 Nominal yield 3 2.16 % Total available-for-sale securities: Amortized cost $ 8,343,468 Fair value 8,162,866 Nominal yield 2.14 % 1 Calculated on a taxable equivalent basis using a 25 percent effective tax rate. 2 The average expected lives of mortgage-backed securities were 4.3 years years based upon current prepayment assumptions. 3 The nominal yield on mortgage-backed securities is based upon prepayment assumptions at the purchase date. Actual yields earned may differ significantly based upon actual prepayments. See Quarterly Financial Summary –– Unaudited following for current yields on available for sale securities portfolio. 4 Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without penalty. 5 Nominal yield on municipal and other tax-exempt securities and other debt securities with contractual maturity dates over ten years are based on variable rates which generally are reset within 35 . Sales of available for sale securities resulted in gains and losses as follows (in thousands): Three Months Ended Six Months Ended 2018 2017 2018 2017 Proceeds $ 142,743 $ 460,402 $ 187,533 $ 700,412 Gross realized gains 257 2,763 450 4,855 Gross realized losses (1,019 ) (2,383 ) (1,502 ) (2,426 ) Related federal and state income tax expense (benefit) (194 ) 148 (268 ) 945 A summary of investment and available for sale securities that have been pledged as collateral for repurchase agreements, public trust funds on deposit and for other purposes, as required by law was as follows (in thousands): June 30, 2018 Dec. 31, 2017 June 30, 2017 Investment: Amortized cost $ 172,906 $ 226,852 $ 251,684 Fair value 174,240 229,429 255,097 Available for sale: Amortized cost 6,821,287 7,151,468 6,327,666 Fair value 6,653,875 7,089,346 6,317,623 The secured parties do not have the right to sell or repledge these securities. At June 30, 2018 , trading securities and receivables collateralized by securities with a fair value of $889 million were pledged as collateral at the Federal Home Loan Bank (FHLB) for the trading activities. No trading securities were pledged as collateral as of December 31, 2017 and no trading securities were pledged as collateral at June 30, 2017 . Temporarily Impaired Securities as of June 30, 2018 (in thousands): Number of Securities Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Investment: Municipal and other tax-exempt 84 $ 98,325 $ 484 $ 5,007 $ 187 $ 103,332 $ 671 U.S. government agency residential mortgage-backed securities 3 6,979 110 2,809 127 9,788 237 Other debt securities 80 36,131 1,795 3,324 196 39,455 1,991 Total investment securities 167 $ 141,435 $ 2,389 $ 11,140 $ 510 $ 152,575 $ 2,899 Number of Securities Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available for sale: U.S. Treasury 1 $ 490 $ 4 $ — $ — $ 490 $ 4 Municipal and other tax-exempt 10 4,784 3 495 1 5,279 4 Residential mortgage-backed securities: U. S. government agencies: FNMA 174 2,049,432 44,860 710,962 38,614 2,760,394 83,474 FHLMC 93 1,116,337 26,663 339,515 15,678 1,455,852 42,341 GNMA 33 275,104 5,611 220,740 9,996 495,844 15,607 Total U.S. government agencies 300 3,440,873 77,134 1,271,217 64,288 4,712,090 141,422 Private issue 1 8 5,409 373 — — 5,409 373 Total residential mortgage-backed securities 308 3,446,282 77,507 1,271,217 64,288 4,717,499 141,795 Commercial mortgage-backed securities guaranteed by U.S. government agencies 211 1,675,839 42,732 554,819 20,585 2,230,658 63,317 Other debt securities 2 — — 20,434 68 20,434 68 Total available for sale securities 532 $ 5,127,395 $ 120,246 $ 1,846,965 $ 84,942 $ 6,974,360 $ 205,188 1 Includes securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income. Temporarily Impaired Securities as of December 31, 2017 (In thousands) Number of Securities Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Investment: Municipal and other tax-exempt 100 $ 145,960 $ 643 $ 5,833 $ 161 $ 151,793 $ 804 U.S. government agency residential mortgage-backed securities 1 — — 3,356 95 3,356 95 Other debt securities 49 20,091 1,238 3,076 129 23,167 1,367 Total investment securities 150 $ 166,051 $ 1,881 $ 12,265 $ 385 $ 178,316 $ 2,266 Number of Securities Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available for sale: U.S. Treasury — $ — $ — $ — $ — $ — $ — Municipal and other tax-exempt 19 12,765 18 4,802 265 17,567 283 Residential mortgage-backed securities: U. S. government agencies: FNMA 113 1,203,041 9,618 824,029 25,919 2,027,070 35,537 FHLMC 69 863,778 7,297 385,816 10,813 1,249,594 18,110 GNMA 27 201,887 1,452 248,742 7,201 450,629 8,653 Total U.S. government agencies 209 2,268,706 18,367 1,458,587 43,933 3,727,293 62,300 Private issue 1 8 5,898 391 — — 5,898 391 Total residential mortgage-backed securities 217 2,274,604 18,758 1,458,587 43,933 3,733,191 62,691 Commercial mortgage-backed securities guaranteed by U.S. government agencies 185 1,465,703 11,824 652,296 14,063 2,117,999 25,887 Other debt securities 2 19,959 41 472 28 20,431 69 Perpetual preferred stocks — — — — — — — Equity securities and mutual funds 111 911 7 2,203 79 3,114 86 Total available for sale securities 534 $ 3,773,942 $ 30,648 $ 2,118,360 $ 58,368 $ 5,892,302 $ 89,016 1 Includes securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income. Temporarily Impaired Securities as of June 30, 2017 (In thousands) Number of Securities Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Investment: Municipal and other tax-exempt 82 $ 111,078 $ 149 $ 3,000 $ 79 $ 114,078 $ 228 U.S. government agency residential mortgage-backed securities 1 3,810 61 — — 3,810 61 Other debt securities 22 8,384 554 — — 8,384 554 Total investment securities 105 $ 123,272 $ 764 $ 3,000 $ 79 $ 126,272 $ 843 Number of Securities Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available for sale: U.S. Treasury 1 $ 997 $ 2 $ — $ — $ 997 $ 2 Municipal and other tax-exempt 13 1,957 1 4,655 412 6,612 413 Residential mortgage-backed securities: U. S. government agencies: FNMA 75 1,381,687 20,288 87,371 1,314 1,469,058 21,602 FHLMC 42 731,853 7,213 16,388 476 748,241 7,689 GNMA 21 291,806 3,766 76,605 1,596 368,411 5,362 Other 1 19,957 43 — — 19,957 43 Total U.S. government agencies 139 2,425,303 31,310 180,364 3,386 2,605,667 34,696 Private issue 1 — — — — — — — Total residential mortgage-backed securities 139 2,425,303 31,310 180,364 3,386 2,605,667 34,696 Commercial mortgage-backed securities guaranteed by U.S. government agencies 121 1,388,406 12,690 78,828 1,587 1,467,234 14,277 Other debt securities 2 — — 4,152 248 4,152 248 Perpetual preferred stocks — — — — — — — Equity securities and mutual funds 91 1,668 22 887 41 2,555 63 Total available for sale securities 367 $ 3,818,331 $ 44,025 $ 268,886 $ 5,674 $ 4,087,217 $ 49,699 1 Includes securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income. Based on evaluations of impaired securities as of June 30, 2018 , the Company does not intend to sell any impaired available for sale debt securities before fair value recovers to the current amortized cost and it is more-likely-than-not that the Company will not be required to sell impaired securities before fair value recovers, which may be maturity. Fair Value Option Securities Fair value option securities represent securities which the Company has elected to carry at fair value and are separately identified on the Consolidated Balance Sheets. Changes in the fair value are recognized in earnings as they occur. Certain securities are held as an economic hedge of the mortgage servicing rights. The fair value and net unrealized gain (loss) included in fair value option securities is as follows (in thousands): June 30, 2018 December 31, 2017 June 30, 2017 Fair Value Net Unrealized Gain (Loss) Fair Value Net Unrealized Gain (Loss) Fair Value Net Unrealized Gain (Loss) U.S. government agency residential mortgage-backed securities $ 482,227 $ (5,509 ) $ 755,054 $ (1,877 ) $ 445,169 $ 1,247 Restricted Equity Securities Restricted equity securities primarily include stock we are required to hold as members of the Federal Reserve system and the Federal Home Loan Banks. Restricted equity securities are carried at cost as these securities do not have a readily determined fair value because ownership of these shares are restricted and they lack a market. A summary of restricted equity securities follows (in thousands): June 30, 2018 Dec. 31, 2017 June 30, 2017 Federal Reserve stock $ 41,178 $ 40,746 $ 36,676 Federal Home Loan Bank stock 306,543 279,200 274,113 Other — 243 244 Total $ 347,721 $ 320,189 $ 311,033 |
Derivatives
Derivatives | 6 Months Ended |
Jun. 30, 2018 | |
Derivative Instrument Detail [Abstract] | |
Derivatives [Text Block] | Derivatives Derivative instruments may be used by the Company as part of its internal risk management programs or may be offered to customers. All derivative instruments are carried at fair value and changes in fair value are reported in earnings as they occur. Credit risk is also considered in determining fair value. Deterioration in the credit rating of customer or other counterparties reduced the fair value of asset contracts. Deterioration of our credit rating could decrease the fair value of our derivative liabilities. When bilateral netting agreements or similar arrangements exist between the Company and its counterparties that create a single legal claim or obligation to pay or receive the net amount in settlement of the individual derivative contracts, the Company reports derivative assets and liabilities on a net by derivative contract type by counterparty basis. Derivative contracts may require the Company to provide or receive cash margin as collateral for derivative assets and liabilities. Derivative assets and liabilities are reported net of cash margin when certain conditions are met. In addition, derivative contracts executed with customers under Customer Risk Management Programs may be secured by non-cash collateral in conjunction with a credit agreement with that customer. Access to collateral in the event of default is reasonably assured. None of these derivative contracts have been designated as hedging instruments for accounting purposes. Customer Risk Management Programs BOK Financial offers programs to permit its customers to manage various risks, including fluctuations in energy, cattle and other agricultural products, interest rates and foreign exchange rates with derivative contracts. Customers may also manage interest rate risk through interest rate swaps used by borrowers to modify interest rate terms of their loans or to-be-announced securities used by mortgage banking customers to hedge their loan production. Derivative contracts are executed between the customers and BOK Financial. Offsetting contracts are executed between BOK Financial and other selected counterparties to minimize the risk of changes in commodity prices, interest rates or foreign exchange rates. The counterparty contracts are identical to customer contracts, except for a fixed pricing spread or fee paid to BOK Financial as profit and compensation for administrative costs and credit risk which is recognized over the life of the contracts and included in Other operating revenue – Brokerage and trading revenue in the Consolidated Statements of Earnings. Internal Risk Management Programs BOK Financial may use derivative contracts in managing its interest rate sensitivity, as part of its economic hedge of the change in the fair value of mortgage servicing rights and to mitigate the market risk of holding trading securities. Changes in the fair value of derivative instruments used in managing interest rate sensitivity and as part of the economic hedge of changes in the fair value of mortgage servicing rights are included in Other operating revenue – Gain (loss) on derivatives, net in the Consolidated Statements of Earnings. Changes in the fair value of derivative instruments used to mitigate the market risk of holding trading securities are included in Other operating revenue – Brokerage and trading revenue. As discussed in Note 6 , certain derivative contracts not designated as hedging instruments related to mortgage loan commitments and forward sales contracts are included in Residential mortgage loans held for sale on the Consolidated Balance Sheets. See Note 6 for additional discussion of notional, fair value and impact on earnings of these contracts. The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and liabilities in the balance sheet at June 30, 2018 (in thousands): Assets Notional 1 Gross Fair Value Netting Adjustments Net Fair Value Before Cash Collateral Cash Collateral Fair Value Net of Cash Collateral Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 15,027,678 $ 52,681 $ (17,382 ) $ 35,299 $ — $ 35,299 Interest rate swaps 1,745,237 43,040 (2,193 ) 40,847 (11,737 ) 29,110 Energy contracts 1,465,826 200,640 (69,991 ) 130,649 — 130,649 Agricultural contracts 23,508 1,164 (181 ) 983 (741 ) 242 Foreign exchange contracts 174,851 170,556 — 170,556 (290 ) 170,266 Equity option contracts 93,943 4,121 — 4,121 (660 ) 3,461 Total customer risk management programs 18,531,043 472,202 (89,747 ) 382,455 (13,428 ) 369,027 Internal risk management programs 9,672,639 14,760 (10,413 ) 4,347 — 4,347 Total derivative contracts $ 28,203,682 $ 486,962 $ (100,160 ) $ 386,802 $ (13,428 ) $ 373,374 Liabilities Notional¹ Gross Fair Value Netting Adjustments Net Fair Value Before Cash Collateral Cash Collateral Fair Value Net of Cash Collateral Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 14,443,478 $ 49,343 $ (17,382 ) $ 31,961 $ (31,808 ) $ 153 Interest rate swaps 1,745,237 43,043 (2,193 ) 40,850 (4,946 ) 35,904 Energy contracts 1,434,980 199,119 (69,990 ) 129,129 (112,481 ) 16,648 Agricultural contracts 23,496 1,142 (181 ) 961 — 961 Foreign exchange contracts 161,567 157,174 (1 ) 157,173 (517 ) 156,656 Equity option contracts 93,943 4,121 — 4,121 — 4,121 Total customer risk management programs 17,902,701 453,942 (89,747 ) 364,195 (149,752 ) 214,443 Internal risk management programs 11,648,514 30,826 (10,413 ) 20,413 — 20,413 Total derivative contracts $ 29,551,215 $ 484,768 $ (100,160 ) $ 384,608 $ (149,752 ) $ 234,856 1 Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract. The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and liabilities in the balance sheet at December 31, 2017 (in thousands): Assets Notional 1 Gross Fair Value Netting Adjustments Net Fair Value Before Cash Collateral Cash Collateral Fair Value Net of Cash Collateral Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 12,347,542 $ 23,606 $ (18,096 ) $ 5,510 $ — $ 5,510 Interest rate swaps 1,478,944 28,278 — 28,278 (4,964 ) 23,314 Energy contracts 1,190,067 103,044 (47,873 ) 55,171 (196 ) 54,975 Agricultural contracts 53,238 1,576 (960 ) 616 — 616 Foreign exchange contracts 132,397 129,551 — 129,551 (448 ) 129,103 Equity option contracts 99,633 5,503 — 5,503 (920 ) 4,583 Total customer risk management programs 15,301,821 291,558 (66,929 ) 224,629 (6,528 ) 218,101 Internal risk management programs 4,736,701 9,494 (7,093 ) 2,401 — 2,401 Total derivative contracts $ 20,038,522 $ 301,052 $ (74,022 ) $ 227,030 $ (6,528 ) $ 220,502 Liabilities Notional 1 Gross Fair Value Netting Adjustments Net Fair Value Before Cash Collateral Cash Collateral Fair Value Net of Cash Collateral Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 11,537,742 $ 20,367 $ (18,096 ) $ 2,271 $ (704 ) $ 1,567 Interest rate swaps 1,478,944 28,298 — 28,298 (12,896 ) 15,402 Energy contracts 1,166,924 101,603 (47,873 ) 53,730 (42,767 ) 10,963 Agricultural contracts 48,552 1,551 (960 ) 591 — 591 Foreign exchange contracts 126,251 123,321 — 123,321 (53 ) 123,268 Equity option contracts 99,633 5,503 — 5,503 — 5,503 Total customer risk management programs 14,458,046 280,643 (66,929 ) 213,714 (56,420 ) 157,294 Internal risk management programs 5,728,421 21,762 (7,093 ) 14,669 — 14,669 Total derivative contracts $ 20,186,467 $ 302,405 $ (74,022 ) $ 228,383 $ (56,420 ) $ 171,963 1 Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract. The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and liabilities in the balance sheet at June 30, 2017 (in thousands): Assets Notional 1 Gross Fair Value Netting Adjustments Net Fair Value Before Cash Collateral Cash Collateral Fair Value Net of Cash Collateral Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 16,174,687 $ 57,948 $ (29,034 ) $ 28,914 $ — $ 28,914 Interest rate swaps 1,450,193 29,932 — 29,932 (2,206 ) 27,726 Energy contracts 891,480 56,824 (20,546 ) 36,278 (21,267 ) 15,011 Agricultural contracts 45,250 3,541 (1,027 ) 2,514 — 2,514 Foreign exchange contracts 169,529 162,429 — 162,429 (7 ) 162,422 Equity option contracts 100,159 4,437 — 4,437 (920 ) 3,517 Total customer risk management programs 18,831,298 315,111 (50,607 ) 264,504 (24,400 ) 240,104 Internal risk management programs 10,680,498 40,185 — 40,185 — 40,185 Total derivative contracts $ 29,511,796 $ 355,296 $ (50,607 ) $ 304,689 $ (24,400 ) $ 280,289 Liabilities Notional 1 Gross Fair Value Netting Adjustments Net Fair Value Before Cash Collateral Cash Collateral Fair Value Net of Cash Collateral Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 16,174,687 $ 53,829 $ (29,034 ) $ 24,795 $ — $ 24,795 Interest rate swaps 1,450,193 29,982 — 29,982 (15,396 ) 14,586 Energy contracts 874,625 53,895 (20,546 ) 33,349 — 33,349 Agricultural contracts 45,262 3,538 (1,027 ) 2,511 (2,511 ) — Foreign exchange contracts 169,553 162,276 — 162,276 (3,188 ) 159,088 Equity option contracts 100,159 4,437 — 4,437 — 4,437 Total customer risk management programs 18,814,479 307,957 (50,607 ) 257,350 (21,095 ) 236,255 Internal risk management programs 8,310,950 49,564 — 49,564 — 49,564 Total derivative contracts $ 27,125,429 $ 357,521 $ (50,607 ) $ 306,914 $ (21,095 ) $ 285,819 1 Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract. The following summarizes the pre-tax net gains (losses) on derivative instruments and where they are recorded in the income statement (in thousands): Three Months Ended June 30, 2018 June 30, 2017 Brokerage and Trading Revenue Gain (Loss) on Derivatives, Net Brokerage and Trading Revenue Gain (Loss)on Derivatives, Net Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 7,586 $ — $ 9,205 $ — Interest rate swaps 683 — 665 — Energy contracts 1,416 — 1,666 — Agricultural contracts 15 — 11 — Foreign exchange contracts 96 — 90 — Equity option contracts — — — — Total customer risk management programs 9,796 — 11,637 — Internal risk management programs (981 ) (3,057 ) 6,485 3,241 Total derivative contracts $ 8,815 $ (3,057 ) $ 18,122 $ 3,241 Six Months Ended June 30, 2018 June 30, 2017 Brokerage and Trading Revenue Gain (Loss) on Derivatives, Net Brokerage and Trading Revenue Gain (Loss) on Derivatives, Net Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 14,405 $ — $ 17,232 $ — Interest rate swaps 1,439 — 1,124 — Energy contracts 4,556 — 4,539 — Agricultural contracts 30 — 20 — Foreign exchange contracts 272 — 360 — Equity option contracts — — — — Total customer risk management programs 20,702 — 23,275 — Internal risk management programs (2,864 ) (8,742 ) 6,018 2,791 Total derivative contracts $ 17,838 $ (8,742 ) $ 29,293 $ 2,791 |
Loans and Allowances for Credit
Loans and Allowances for Credit Losses | 6 Months Ended |
Jun. 30, 2018 | |
Loans Receivable, Net [Abstract] | |
Loans [Text Block] | Loans and Allowances for Credit Losses Loans Loans are either secured or unsecured based on the type of loan and the financial condition of the borrower. Repayment is generally expected from cash flow or proceeds from the sale of selected assets of the borrower. BOK Financial is exposed to risk of loss on loans due to the borrower’s difficulties, which may arise from any number of factors, including problems within the respective industry or local economic conditions. Access to collateral, in the event of borrower default, is reasonably assured through adherence to applicable lending laws and through sound lending standards and credit review procedures. Accounting policies for all loans, excluding residential mortgage loans guaranteed by U.S. government agencies, are as follows. Interest is accrued at the applicable interest rate on the principal amount outstanding. Loans are placed on nonaccruing status when, in the opinion of management, full collection of principal or interest is uncertain. Internally risk graded loans are individually evaluated for nonaccruing status quarterly. Non-risk graded loans are generally placed on nonaccruing status when more than 90 days past due or within 60 days of being notified of the borrower's bankruptcy filing. Interest previously accrued but not collected is charged against interest income when the loan is placed on nonaccruing status. Payments on nonaccruing loans are applied to principal or recognized as interest income, according to management’s judgment as to the collectability of principal. Loans may be returned to accruing status when, in the opinion of management, full collection of principal and interest, including principal previously charged off, is probable based on improvements in the borrower’s financial condition or a sustained period of performance. Loans to borrowers experiencing financial difficulties may be modified in troubled debt restructurings ("TDRs"). All TDRs are classified as nonaccruing, excluding loans guaranteed by U.S. government agencies. Modifications generally consist of extension of payment terms or interest rate concessions and may result either voluntarily through negotiations with the borrower or involuntarily through court order. Generally, principal and accrued but unpaid interest is not voluntarily forgiven. Performing loans may be renewed under the current collateral value, debt service ratio and other underwriting standards. Nonaccruing loans may be renewed and will remain classified as nonaccruing. Occasionally, loans, other than residential mortgage loans, may be held for sale in order to manage credit concentration. These loans are carried at the lower of cost or fair value with gains or losses recognized in other gains (losses), net in the Statements of Earnings. All loans are charged off when the loan balance or a portion of the loan balance is no longer supported by the paying capacity of the borrower or when the required cash flow is reduced in a TDR. The charge-off amount is determined through a quarterly evaluation of available cash resources and collateral value and charge-offs are taken in the quarter in which the loss is identified. Non-risk graded loans that are past due between 60 days and 180 days , based on the loan product type, are charged off. Loans to borrowers whose personal obligation has been discharged through Chapter 7 bankruptcy proceedings are charged off within 60 days of notice of the bankruptcy filing, regardless of payment status. Loan origination and commitment fees and direct loan acquisition and origination costs are deferred and amortized as an adjustment to yield over the life of the loan or over the commitment period, as applicable. Amortization does not anticipate loan prepayments. Net unamortized fees are recognized in full at time of payoff. Qualifying residential mortgage loans guaranteed by U.S. government agencies have been sold into GNMA pools. Under certain performance conditions specified in government programs, the Company may have the right, but not the obligation to repurchase loans from GNMA pools. These loans no longer qualify for sale accounting and are recognized in the Consolidated Balance Sheets. Guaranteed loans are considered impaired because we do not expect to receive all principal and interest based on the loan's contractual terms. The principal balance continues to be guaranteed; however, interest accrues at a curtailed rate as specified in the programs. The carrying value of these loans is reduced based on an estimate of the expected cash flows discounted at the original note rate plus a liquidity spread. Guaranteed loans may be modified in TDRs in accordance with U.S. government agency guidelines. Interest continues to accrue based on the modified rate. Guaranteed loans may either be resold into GNMA pools after a performance period specified by the programs or foreclosed and conveyed to the guarantors. Loans are disaggregated into portfolio segments and further disaggregated into classes. The portfolio segment is the level at which the Company develops and documents a systematic method for determining its allowance for credit losses. Classes are a further disaggregation of portfolio segments based on the risk characteristics of the loans and the Company’s method for monitoring and assessing credit risk. Portfolio segments of the loan portfolio are as follows (in thousands): June 30, 2018 December 31, 2017 Fixed Rate Variable Rate Non-accrual Total Fixed Rate Variable Rate Non-accrual Total Commercial $ 2,206,735 $ 9,021,326 $ 120,978 $ 11,349,039 $ 2,217,432 $ 8,379,240 $ 137,303 $ 10,733,975 Commercial real estate 583,782 3,126,442 1,996 3,712,220 548,692 2,928,440 2,855 3,479,987 Residential mortgage 1,567,216 332,691 42,343 1,942,250 1,608,655 317,584 47,447 1,973,686 Personal 168,171 831,676 340 1,000,187 154,517 810,990 269 965,776 Total $ 4,525,904 $ 13,312,135 $ 165,657 $ 18,003,696 $ 4,529,296 $ 12,436,254 $ 187,874 $ 17,153,424 Accruing loans past due (90 days) 1 $ 879 $ 633 June 30, 2017 Fixed Rate Variable Rate Non-accrual Total Commercial $ 2,198,066 $ 8,242,732 $ 197,157 $ 10,637,955 Commercial real estate 594,542 3,090,275 3,775 3,688,592 Residential mortgage 1,597,587 297,376 44,235 1,939,198 Personal 150,728 766,900 272 917,900 Total $ 4,540,923 $ 12,397,283 $ 245,439 $ 17,183,645 Accruing loans past due (90 days) 1 $ 1,414 1 Excludes residential mortgage loans guaranteed by agencies of the U.S. government At June 30, 2018 , $6.0 billion or 33 percent of our total loan portfolio is to businesses and individuals attributed to the Texas market and $3.5 billion or 20 percent of the total loan portfolio is to businesses and individuals attributed to the Oklahoma market. These geographic concentrations subject the loan portfolio to the general economic conditions within these areas. Commercial Commercial loans represent loans for working capital, facilities acquisition or expansion, purchases of equipment and other needs of commercial customers primarily located within our geographical footprint. Commercial loans are underwritten individually and represent ongoing relationships based on a thorough knowledge of the customer, the customer’s industry and market. While commercial loans are generally secured by the customer’s assets including real property, inventory, accounts receivable, operating equipment, interest in mineral rights and other property and may also include personal guarantees of the owners and related parties, the primary source of repayment of the loans is the ongoing cash flow from operations of the customer’s business. Inherent lending risk is centrally monitored on a continuous basis from underwriting throughout the life of the loan for compliance with commercial lending policies. At June 30, 2018 , commercial loans attributed to the Texas market totaled $3.8 billion or 33 percent of the commercial loan portfolio segment and commercial loans attributed to the Oklahoma market totaled $2.2 billion or 19 percent of the commercial loan portfolio segment. The commercial loan portfolio segment is further divided into loan classes. The energy loan class totaled $3.1 billion or 17 percent of total loans at June 30, 2018 , including $2.6 billion of outstanding loans to energy producers. Approximately 56 percent of committed production loans are secured by properties primarily producing oil and 44 percent are secured by properties producing natural gas. The services loan class totaled $2.9 billion or 16 percent of total loans at June 30, 2018 . Approximately $1.4 billion of loans in the services category consist of loans with individual balances of less than $10 million . Businesses included in the services class include governmental, educational services, consumer services, financial services and loans to entities providing services for real estate and construction. The healthcare loan class totaled $2.4 billion or 13 percent of total loans at June 30, 2018 . The healthcare loan class consists primarily of loans for the development and operation of senior housing and care facilities, including independent living, assisted living and skilled nursing. Healthcare also includes loans to hospitals and other medical service providers. Commercial Real Estate Commercial real estate loans are for the construction of buildings or other improvements to real estate and property held by borrowers for investment purposes primarily within our geographical footprint. We require collateral values in excess of the loan amounts, demonstrated cash flows in excess of expected debt service requirements, equity investment in the project and a portion of the project already sold, leased or permanent financing already secured. The expected cash flows from all significant new or renewed income producing property commitments are stress tested to reflect the risks in varying interest rates, vacancy rates and rental rates. As with commercial loans, inherent lending risks are centrally monitored on a continuous basis from underwriting throughout the life of the loan for compliance with applicable lending policies. At June 30, 2018 , 33 percent of commercial real estate loans are secured by properties primarily located in the Dallas and Houston areas of Texas. An additional 12 percent of commercial real estate loans are secured by properties located primarily in the Tulsa and Oklahoma City metropolitan areas of Oklahoma. Residential Mortgage and Personal Residential mortgage loans provide funds for our customers to purchase or refinance their primary residence or to borrow against the equity in their home. Residential mortgage loans are secured by a first or second mortgage on the customer’s primary residence. Personal loans consist primarily of loans secured by the cash surrender value of insurance policies and marketable securities. It also includes direct loans secured by and for the purchase of automobiles, recreational and marine equipment as well as unsecured loans. Residential mortgage and personal loans are made in accordance with underwriting policies we believe to be conservative and are fully documented. Loans may be individually underwritten or credit scored based on size and other criteria. Credit scoring is assessed based on significant credit characteristics including credit history, residential and employment stability. Residential mortgage loans retained in the Company’s portfolio are primarily composed of various mortgage programs to support customer relationships including jumbo mortgage loans, non-builder construction loans and special loan programs for high net worth individuals and certain professionals. Jumbo loans may be fixed or variable rate and are fully amortizing. Jumbo loans generally conform to government sponsored entity standards, except that the loan size exceeds maximums required under these standards. These loans generally require a minimum FICO score of 720 and a maximum debt-to-income ratio (“DTI”) of 38 percent . Loan-to-value (“LTV”) ratios are tiered from 60 percent to 100 percent , depending on the market. Special mortgage programs include fixed and variable fully amortizing loans tailored to the needs of certain healthcare professionals. Variable rate loans are fully indexed at origination and may have fixed rates for three to ten years , then adjust annually thereafter. At June 30, 2018 , residential mortgage loans included $170 million of loans guaranteed by U.S. government agencies previously sold into GNMA mortgage pools. These loans either have been repurchased or are eligible to be repurchased by the Company when certain defined delinquency criteria are met. Although payments on these loans generally are past due more than 90 days, interest continues to accrue based on the government guarantee. Home equity loans totaled $704 million at June 30, 2018 . Approximately 62 percent of the home equity loan portfolio is comprised of first lien loans and 38 percent of the home equity portfolio is comprised of junior lien loans. Junior lien loans are distributed 45 percent to amortizing term loans and 55 percent to revolving lines of credit. Home equity loans generally require a minimum FICO score of 700 and a maximum DTI of 40 percent. The maximum loan amount available for our home equity loan products is generally $400 thousand . Revolving loans have a 5 year revolving period followed by a 15 year term of amortizing repayments. Interest-only home equity loans may not be extended for any additional revolving time. All other home equity loans may be extended at management's discretion for an additional 5 year revolving term, subject to an update of certain credit information. Credit Commitments Commitments to extend credit are agreements to lend to a customer as long as there is no violation of conditions established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. At June 30, 2018 , outstanding commitments totaled $10.3 billion . Because some commitments are expected to expire before being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. BOK Financial uses the same credit policies in making commitments as it does loans. The amount of collateral obtained, if deemed necessary, is based upon management’s credit evaluation of the borrower. Standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. Because the credit risk involved in issuing standby letters of credit is essentially the same as that involved in extending loan commitments, BOK Financial uses the same credit policies in evaluating the creditworthiness of the customer. Additionally, BOK Financial uses the same evaluation process in obtaining collateral on standby letters of credit as it does for loan commitments. The term of these standby letters of credit is defined in each commitment and typically corresponds with the underlying loan commitment. At June 30, 2018 , outstanding standby letters of credit totaled $660 million . Allowances for Credit Losses BOK Financial maintains an allowance for loan losses and an accrual for off-balance sheet credit risk. The accrual for off-balance sheet credit risk is maintained at a level that is appropriate to cover estimated losses associated with credit instruments that are not currently recognized as assets such as loan commitments, standby letters of credit or guarantees. As discussed in greater detail in Note 6 , the Company also has separate accruals for off-balance sheet credit risk related to residential mortgage loans previously sold with full or partial recourse and for residential mortgage loans sold to government sponsored agencies under standard representations and warranties. The appropriateness of the allowance for loan losses and accrual for off-balance sheet credit losses (collectively "allowance for credit losses") is assessed by management based on an ongoing quarterly evaluation of the probable estimated losses inherent in the portfolio, including probable losses on both outstanding loans and unused commitments. The allowance for loan losses consists of specific allowances attributed to impaired loans that have not yet been charged down to amounts we expect to recover, general allowances for unimpaired loans based on estimated loss rates by loan class and nonspecific allowances based on general economic conditions, risk concentration and related factors. There have been no material changes in the approach or techniques utilized in developing the allowance for loan losses and the accrual for off-balance sheet credit losses for the three and six months ended June 30, 2018 . Loans are considered to be impaired when it becomes probable that BOK Financial will be unable to collect all amounts due according to the contractual terms of the loan agreements. Internally risk graded loans are evaluated individually for impairment. Substantially all commercial and commercial real estate loans and certain residential mortgage and consumer loans are risk graded based on evaluation of the borrowers' ability to repay. Certain commercial loans and most residential mortgage and consumer loans are small balance, homogeneous pools of loans that are not risk graded. Non-risk graded loans are identified as impaired based on performance status. Generally, non-risk graded loans 90 days or more past due or modified in a TDR or in bankruptcy are considered to be impaired. Specific allowances for impaired loans are measured by an evaluation of estimated future cash flows discounted at the loans’ initial effective interest rate or the fair value of collateral for certain collateral dependent loans. Collateral value of real property is generally based on third party appraisals that conform to Uniform Standards of Professional Appraisal Practice, less estimated selling costs. Appraised values are on an "as-is" basis and are generally not adjusted by the Company. Updated appraisals are obtained at least annually or more frequently if market conditions indicate collateral values have declined. Collateral value of mineral rights is generally determined by our internal staff of engineers based on projected cash flows under current market conditions. Collateral values and available cash resources that support impaired loans are evaluated quarterly. Historical statistics may be used as a practical way to estimate impairment in limited situations, such as when a collateral dependent loan is identified as impaired at the end of a reporting period, until an updated appraisal of collateral value is received or a full assessment of future cash flows is completed. Estimates of future cash flows and collateral values require significant judgments and may be volatile. General allowances for unimpaired loans are based on estimated loss rates by loan class. The gross loss rate for each loan class is determined by the greater of the current gross loss rate based on the most recent twelve months or a ten-year gross loss rate. Recoveries are not directly considered in the estimation of loss rates. Recoveries generally do not follow predictable patterns and are not received until well after the charge-off date as a result of protracted legal actions. For risk graded loans, gross loss rates are adjusted for changes in risk grading. For each loan class, the current weighted average risk grade is compared to the long-term average risk grade. This comparison determines whether credit risk in each loan class is increasing or decreasing. Loss rates are adjusted upward or downward in proportion to changes in average risk grading. General allowances for unimpaired loans also consider inherent risks identified for each loan class. Inherent risks consider loss rates that most appropriately represent the current credit cycle and other factors attributable to specific loan classes which have not yet been represented in the gross loss rates or risk grading. These factors include changes in commodity prices or engineering imprecision, which may affect the value of reserves that secure our energy loan portfolio, construction risk that may affect commercial real estate loans, changes in regulations and public policy that may disproportionately impact health care loans and changes in loan products. Nonspecific allowances are maintained for risks beyond factors specific to a particular loan or loan class. These factors include trends in the economy of our primary lending areas, concentrations in large balance loans and other relevant factors. An accrual for off-balance sheet credit losses is included in Other liabilities in the Consolidated Balance Sheets. The appropriateness of this accrual is determined in the same manner as the allowance for loan losses. A provision for credit losses is charged against or credited to earnings in amounts necessary to maintain an appropriate allowance for credit losses. Recoveries of loans previously charged off are added to the allowance when received. The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the three months ended June 30, 2018 is summarized as follows (in thousands): Commercial Commercial Real Estate Residential Mortgage Personal Nonspecific Allowance Total Allowance for loan losses: Beginning balance $ 120,083 $ 57,070 $ 18,431 $ 8,408 $ 19,975 $ 223,967 Provision for loan losses 7,116 (1,409 ) (257 ) 755 (4,503 ) 1,702 Loans charged off (13,775 ) — (135 ) (1,195 ) — (15,105 ) Recoveries 298 3,097 505 678 — 4,578 Ending balance $ 113,722 $ 58,758 $ 18,544 $ 8,646 $ 15,472 $ 215,142 Allowance for off-balance sheet credit losses: Beginning balance $ 4,027 $ 44 $ 62 $ 2 $ — $ 4,135 Provision for off-balance sheet credit losses (1,666 ) (27 ) (9 ) — — (1,702 ) Ending balance $ 2,361 $ 17 $ 53 $ 2 $ — $ 2,433 Total provision for credit losses $ 5,450 $ (1,436 ) $ (266 ) $ 755 $ (4,503 ) $ — The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the six months ended June 30, 2018 is summarized as follows (in thousands): Commercial Commercial Real Estate Residential Mortgage Personal Nonspecific Allowance Total Allowance for loan losses: Beginning balance $ 124,269 $ 56,621 $ 18,451 $ 9,124 $ 22,217 $ 230,682 Provision for loan losses 4,005 (1,143 ) (419 ) 603 (6,745 ) (3,699 ) Loans charged off (15,338 ) — (235 ) (2,422 ) — (17,995 ) Recoveries 786 3,280 747 1,341 — 6,154 Ending balance $ 113,722 $ 58,758 $ 18,544 $ 8,646 $ 15,472 $ 215,142 Allowance for off-balance sheet credit losses: Beginning balance $ 3,644 $ 45 $ 43 $ 2 $ — $ 3,734 Provision for off-balance sheet credit losses (1,283 ) (28 ) 10 — — (1,301 ) Ending balance $ 2,361 $ 17 $ 53 $ 2 $ — $ 2,433 Total provision for credit losses $ 2,722 $ (1,171 ) $ (409 ) $ 603 $ (6,745 ) $ (5,000 ) The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the three months ended June 30, 2017 is summarized as follows (in thousands): Commercial Commercial Real Estate Residential Mortgage Personal Nonspecific Allowance Total Allowance for loan losses: Beginning balance $ 137,616 $ 58,343 $ 18,177 $ 7,247 $ 27,327 $ 248,710 Provision for loan losses 1,546 105 (47 ) 1,358 47 3,009 Loans charged off (1,703 ) (76 ) (40 ) (1,053 ) — (2,872 ) Recoveries 283 208 169 554 — 1,214 Ending balance $ 137,742 $ 58,580 $ 18,259 $ 8,106 $ 27,374 $ 250,061 Allowance for off-balance sheet credit losses: Beginning balance $ 9,288 $ 106 $ 40 $ 6 $ — $ 9,440 Provision for off-balance sheet credit losses (2,987 ) (22 ) (2 ) 2 — (3,009 ) Ending balance $ 6,301 $ 84 $ 38 $ 8 $ — $ 6,431 Total provision for credit losses $ (1,441 ) $ 83 $ (49 ) $ 1,360 $ 47 $ — The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the six months ended June 30, 2017 is summarized as follows (in thousands): Commercial Commercial Real Estate Residential Mortgage Personal Nonspecific Allowance Total Allowance for loan losses: Beginning balance $ 140,213 $ 50,749 $ 18,224 $ 8,773 $ 28,200 $ 246,159 Provision for loan losses (1,809 ) 6,964 (86 ) 570 (826 ) 4,813 Loans charged off (2,127 ) (76 ) (276 ) (2,546 ) — (5,025 ) Recoveries 1,465 943 397 1,309 — 4,114 Ending balance $ 137,742 $ 58,580 $ 18,259 $ 8,106 $ 27,374 $ 250,061 Allowance for off-balance sheet credit losses: Beginning balance $ 11,063 $ 123 $ 50 $ 8 $ — $ 11,244 Provision for off-balance sheet credit losses (4,762 ) (39 ) (12 ) — — (4,813 ) Ending balance $ 6,301 $ 84 $ 38 $ 8 $ — $ 6,431 Total provision for credit losses $ (6,571 ) $ 6,925 $ (98 ) $ 570 $ (826 ) $ — The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at June 30, 2018 is as follows (in thousands): Collectively Measured for Impairment Individually Measured for Impairment Total Recorded Investment Related Allowance Recorded Investment Related Allowance Recorded Investment Related Allowance Commercial $ 11,228,061 $ 98,522 $ 120,978 $ 15,200 $ 11,349,039 $ 113,722 Commercial real estate 3,710,224 58,758 1,996 — 3,712,220 58,758 Residential mortgage 1,899,907 18,544 42,343 — 1,942,250 18,544 Personal 999,847 8,646 340 — 1,000,187 8,646 Total 17,838,039 184,470 165,657 15,200 18,003,696 199,670 Nonspecific allowance — — — — — 15,472 Total $ 17,838,039 $ 184,470 $ 165,657 $ 15,200 $ 18,003,696 $ 215,142 The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at December 31, 2017 is as follows (in thousands): Collectively Measured for Impairment Individually Measured for Impairment Total Recorded Investment Related Allowance Recorded Investment Related Allowance Recorded Investment Related Allowance Commercial $ 10,596,672 $ 115,438 $ 137,303 $ 8,831 $ 10,733,975 $ 124,269 Commercial real estate 3,477,132 56,621 2,855 — 3,479,987 56,621 Residential mortgage 1,926,239 18,451 47,447 — 1,973,686 18,451 Personal 965,507 9,124 269 — 965,776 9,124 Total 16,965,550 199,634 187,874 8,831 17,153,424 208,465 Nonspecific allowance — — — — — 22,217 Total $ 16,965,550 $ 199,634 $ 187,874 $ 8,831 $ 17,153,424 $ 230,682 The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at June 30, 2017 is as follows (in thousands): Collectively Measured for Impairment Individually Measured for Impairment Total Recorded Investment Related Allowance Recorded Investment Related Allowance Recorded Investment Related Allowance Commercial $ 10,440,798 $ 128,049 $ 197,157 $ 9,693 $ 10,637,955 $ 137,742 Commercial real estate 3,684,817 58,580 3,775 — 3,688,592 58,580 Residential mortgage 1,894,963 18,259 44,235 — 1,939,198 18,259 Personal 917,628 8,106 272 — 917,900 8,106 Total 16,938,206 212,994 245,439 9,693 17,183,645 222,687 Nonspecific allowance — — — — — 27,374 Total $ 16,938,206 $ 212,994 $ 245,439 $ 9,693 $ 17,183,645 $ 250,061 Credit Quality Indicators The Company utilizes loan class and risk grading as primary credit quality indicators. Substantially all commercial and commercial real estate loans and certain residential mortgage and consumer loans are risk graded based on a quarterly evaluation of the borrowers’ ability to repay the loans. Certain commercial loans and most residential mortgage and consumer loans are small, homogeneous pools that are not risk graded. The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at June 30, 2018 is as follows (in thousands): Internally Risk Graded Non-Graded Total Recorded Investment Related Allowance Recorded Investment Related Allowance Recorded Investment Related Allowance Commercial $ 11,323,917 $ 112,842 $ 25,122 $ 880 $ 11,349,039 $ 113,722 Commercial real estate 3,712,220 58,758 — — 3,712,220 58,758 Residential mortgage 250,081 3,082 1,692,169 15,462 1,942,250 18,544 Personal 917,620 6,621 82,567 2,025 1,000,187 8,646 Total 16,203,838 181,303 1,799,858 18,367 18,003,696 199,670 Nonspecific allowance — — — — — 15,472 Total $ 16,203,838 $ 181,303 $ 1,799,858 $ 18,367 $ 18,003,696 $ 215,142 The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at December 31, 2017 is as follows (in thousands): Internally Risk Graded Non-Graded Total Recorded Investment Related Allowance Recorded Investment Related Allowance Recorded Investment Related Allowance Commercial $ 10,706,035 $ 123,383 $ 27,940 $ 886 $ 10,733,975 $ 124,269 Commercial real estate 3,479,987 56,621 — — 3,479,987 56,621 Residential mortgage 234,477 2,947 1,739,209 15,504 1,973,686 18,451 Personal 877,390 6,461 88,386 2,663 965,776 9,124 Total 15,297,889 189,412 1,855,535 19,053 17,153,424 208,465 Nonspecific allowance — — — — — 22,217 Total $ 15,297,889 $ 189,412 $ 1,855,535 $ 19,053 $ 17,153,424 $ 230,682 The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at June 30, 2017 is as follows (in thousands): Internally Risk Graded Non-Graded Total Recorded Investment Related Allowance Recorded Investment Related Allowance Recorded Investment Related Allowance Commercial $ 10,612,477 $ 136,819 $ 25,478 $ 923 $ 10,637,955 $ 137,742 Commercial real estate 3,688,592 58,580 — — 3,688,592 58,580 Residential mortgage 216,007 2,976 1,723,191 15,283 1,939,198 18,259 Personal 824,318 5,742 93,582 2,364 917,900 8,106 Total 15,341,394 204,117 1,842,251 18,570 17,183,645 222,687 Nonspecific allowance — — — — — 27,374 Total $ 15,341,394 $ 204,117 $ 1,842,251 $ 18,570 $ 17,183,645 $ 250,061 Loans are considered to be performing if they are in compliance with the original terms of the agreement and currently exhibit no factors that cause management to have doubts about the borrowers' ability to remain in compliance with the original terms of the agreement, which is consistent with the regulatory guideline of “pass.” Performing loans also include past due residential mortgages that are guaranteed by agencies of the U.S. government that continue to accrue interest based on criteria of the guarantors' programs. Other loans especially mentioned are currently performing in compliance with the original terms of the agreement but may have a potential weakness that deserves management’s close attention, consistent with regulatory guidelines. The risk grading process identified certain loans that have a well-defined weakness (e.g. inadequate debt service coverage or liquidity or marginal capitalization; repayment may depend on collateral or other risk mitigation) that may jeopardize liquidation of the debt and represent a greater risk due to deterioration in the financial condition of the borrower. This is consistent with the regulatory guideline for “substandard.” Because the borrowers are still performing in accordance with the original terms of the loan agreements, these loans were not placed in nonaccruing status. Nonaccruing loans represent loans for which full collection of principal and interest is uncertain. This is substantially the same criteria used to determine whether a loan is impaired and includes certain loans considered “substandard” and all loans considered “doubtful” by regulatory guidelines. The following table summarizes the Company’s loan portfolio at June 30, 2018 by the risk grade categories (in thousands): Internally Risk Graded Non-Graded Performing Pass Other Loans Especially Mentioned Accruing Substandard Nonaccrual Performing Nonaccrual Total Commercial: Energy $ 2,936,184 $ 52,350 $ 93,088 $ 65,597 $ — $ — $ 3,147,219 Services 2,903,168 30,564 6,390 4,377 — — 2,944,499 Wholesale/retail 1,679,834 900 4,725 14,095 — — 1,699,554 Manufacturing 620,687 7,559 16,579 2,991 — — 647,816 Healthcare 2,319,035 2,030 16,532 16,125 — — 2,353,722 Other commercial and industrial 513,027 400 — 17,680 25,009 113 556,229 Total commercial 10,971,935 93,803 137,314 120,865 25,009 113 11,349,039 Commercial real estate: Residential construction and land development 116,821 1,828 — 350 — — 118,999 Retail 745,691 21,173 92 1,068 — — 768,024 Office 812,848 7,004 — 275 — — 820,127 Multifamily 1,056,953 — 31 — — — 1,056,984 Industrial 653,384 — — — — — 653,384 Other commercial real estate 294,399 — |
Acquisition Acquisition
Acquisition Acquisition | 6 Months Ended |
Jun. 30, 2018 | |
Business Combinations [Abstract] | |
Business Combination Disclosure [Text Block] | On June 18, 2018 , the Company announced the signing of a definitive merger agreement with CoBiz Financial Inc. CoBiz is headquartered in Denver with a presence in Colorado and Arizona and has approximately $3.8 billion in assets. Upon completion of the merger, CoBiz shareholders will receive 0.17 shares of BOK Financial common stock and $5.70 in cash for each share of CoBiz common stock. The merger is subject to customary closing conditions including regulatory approval. On May 1, 2018 , the Company acquired a majority voting interest in Switchgrass Holdings, LLC, a restaurant franchise owner and operator, pursuant to merchant banking regulations and restrictions. The purchase price for this acquisition was $14 million . The preliminary purchase price allocation included $6.1 million of goodwill. |
Mortgage Banking Activities
Mortgage Banking Activities | 6 Months Ended |
Jun. 30, 2018 | |
Mortgage Banking [Abstract] | |
Mortgage Banking Activities [Text Block] | Mortgage Banking Activities Residential Mortgage Loan Production The Company originates, markets and services conventional and government-sponsored residential mortgage loans. Generally, conforming fixed rate residential mortgage loans are held for sale in the secondary market and non-conforming and adjustable-rate residential mortgage loans are retained for investment. Residential mortgage loans originated for sale by the Company are carried at fair value based on sales commitments and market quotes. Changes in the fair value of mortgage loans held for sale are included in Other operating revenue – Mortgage banking revenue. Residential mortgage loans held for sale also includes the fair value of residential mortgage loan commitments and forward sales commitments, which are considered derivative contracts that have not been designated as hedging instruments for accounting purposes. The volume of mortgage loans originated for sale and secondary market prices are the primary drivers of originating and marketing revenue. Residential mortgage loan commitments are generally outstanding for 60 to 90 days, which represents the typical period from commitment to originate a residential mortgage loan to when the closed loan is sold to an investor. Residential mortgage loan commitments are subject to both credit and interest rate risk. Credit risk is managed through underwriting policies and procedures, including collateral requirements, which are generally accepted by the secondary loan markets. Exposure to interest rate fluctuations is partially managed through forward sales of residential mortgage-backed securities and forward sales contracts. These latter contracts set the price for loans that will be delivered in the next 60 to 90 days. The unpaid principal balance of residential mortgage loans held for sale, notional amounts of derivative contracts related to residential mortgage loan commitments and forward contract sales and their related fair values included in Mortgage loans held for sale on the Consolidated Balance Sheets were (in thousands): June 30, 2018 December 31, 2017 June 30, 2017 Unpaid Principal Balance/ Notional Fair Value Unpaid Principal Balance/ Notional Fair Value Unpaid Principal Balance/ Notional Fair Value Residential mortgage loans held for sale $ 214,717 $ 216,983 $ 212,525 $ 215,113 $ 269,772 $ 275,179 Residential mortgage loan commitments 251,231 7,473 222,919 6,523 362,088 10,993 Forward sales contracts 440,735 (1,155 ) 380,159 (258 ) 587,595 1,087 $ 223,301 $ 221,378 $ 287,259 No residential mortgage loans held for sale were 90 days or more past due or considered impaired as of June 30, 2018 , December 31, 2017 or June 30, 2017 . No credit losses were recognized on residential mortgage loans held for sale for the six month period ended June 30, 2018 and 2017 . Mortgage banking revenue was as follows (in thousands): Three Months Ended Six Months Ended 2018 2017 2018 2017 Production revenue: Net realized gains on sale of mortgage loans $ 10,718 $ 11,787 $ 19,636 $ 20,402 Net change in unrealized gain on mortgage loans held for sale 1,047 985 (322 ) 4,827 Net change in the fair value of mortgage loan commitments (1,124 ) (3,274 ) 950 1,260 Net change in the fair value of forward sales contracts (726 ) 4,342 (897 ) (4,106 ) Total production revenue 9,915 13,840 19,367 22,383 Servicing revenue 16,431 16,436 33,004 33,084 Total mortgage banking revenue $ 26,346 $ 30,276 $ 52,371 $ 55,467 Production revenue includes gain (loss) on residential mortgage loans held for sale and changes in the fair value of derivative contracts not designated as hedging instruments for accounting purposes related to residential mortgage loan commitments and forward sales contracts. Servicing revenue includes servicing fee income and late charges on loans serviced for others. Residential Mortgage Servicing Mortgage servicing rights may be originated or purchased. Both originated and purchased mortgage servicing rights are initially recognized at fair value. The Company has elected to carry all mortgage servicing rights at fair value. Changes in the fair value are recognized in earnings as they occur. The unpaid principal balance of loans serviced for others is the primary driver of servicing revenue. The following represents a summary of mortgage servicing rights (Dollars in thousands): June 30, December 31, 2017 June 30, Number of residential mortgage loans serviced for others 134,868 136,528 138,335 Outstanding principal balance of residential mortgage loans serviced for others $ 21,963,309 $ 22,046,632 $ 22,095,232 Weighted average interest rate 3.96 % 3.94 % 3.95 % Remaining term (in months) 295 297 299 The following represents activity in capitalized mortgage servicing rights (in thousands): Three Months Ended Six Months Ended 2018 2017 2018 2017 Beginning Balance $ 274,978 $ 249,403 $ 252,867 $ 247,073 Additions, net 10,820 11,078 19,720 19,514 Change in fair value due to principal payments (8,802 ) (8,299 ) (16,797 ) (16,261 ) Change in fair value due to market assumption changes 1,723 (6,943 ) 22,929 (5,087 ) Ending Balance $ 278,719 $ 245,239 $ 278,719 $ 245,239 Changes in the fair value of mortgage servicing rights due to market assumption changes are included in Other operating revenue in the Consolidated Statements of Earnings. Changes in fair value due to principal payments are included in Mortgage banking costs. Mortgage servicing rights are not traded in active markets. Fair value is determined by discounting the projected net cash flows. Significant market assumptions used to determine fair value based on significant unobservable inputs were as follows: June 30, December 31, 2017 June 30, Discount rate – risk-free rate plus a market premium 9.91% 9.84% 9.84% Prepayment rate - based upon loan interest rate, original term and loan type 8.12% - 15.08% 8.72% - 15.16% 8.61%-15.91% Loan servicing costs – annually per loan based upon loan type: Performing loans $65 - $88 $65 - $88 $65-$120 Delinquent loans $150 - $500 $150 - $500 $150-$500 Loans in foreclosure $1,000 - $4,000 $1,000 - $4,000 $1,000-$4,250 Escrow earnings rate – indexed to rates paid on deposit accounts with comparable average life 2.88% 2.24% 1.95% Primary/secondary mortgage rate spread 105 bps 105 bps 105 bps Changes in primary residential mortgage interest rates directly affect the prepayment speeds used in valuing our mortgage servicing rights. A separate third party model is used to estimate prepayment speeds based on interest rates, housing turnover rates, estimated loan curtailment, anticipated defaults and other relevant factors. The prepayment model is updated periodically for changes in market conditions and adjusted to better correlate with actual performance of BOK Financial’s servicing portfolio. The aging status of our mortgage loans serviced for others by investor at June 30, 2018 follows (in thousands): Past Due Current 30 to 59 Days 60 to 89 Days 90 Days or More Total FHLMC $ 7,932,832 $ 68,996 $ 9,405 $ 25,129 $ 8,036,362 FNMA 6,491,492 77,424 9,118 20,918 6,598,952 GNMA 6,624,862 198,852 47,791 15,204 6,886,709 Other 433,830 4,989 221 2,246 441,286 Total $ 21,483,016 $ 350,261 $ 66,535 $ 63,497 $ 21,963,309 |
Commitments and Contingent Liab
Commitments and Contingent Liabilities | 6 Months Ended |
Jun. 30, 2018 | |
Commitments and Contingencies Disclosure [Abstract] | |
Commitments and Contingent Liabilities [Text Block] | Commitments and Contingent Liabilities Litigation Contingencies As a member of Visa, BOK Financial is obligated for a proportionate share of certain covered litigation losses incurred by Visa under a retrospective responsibility plan. A contingent liability was recognized for the Company’s share of Visa’s covered litigation liabilities. Visa funded an escrow account to cover litigation claims, including covered litigation losses under the retrospective responsibility plan, with proceeds from its initial public offering in 2008 and from available cash. BOK Financial currently owns 252,233 Visa Class B shares which are convertible into 411,089 shares of Visa Class A shares after the final settlement of all covered litigation. Class B shares may be diluted in the future if the escrow fund is not adequate to cover future covered litigation costs. Therefore, no value has been currently assigned to the Class B shares and no value may be assigned until the Class B shares are converted into a known number of Class A shares. On June 24, 2015, the Bank received a complaint alleging that an employee had colluded with a bond issuer and an individual in misusing revenues pledged to municipal bonds for which the Bank served as trustee under the bond indenture. The Company conducted an investigation and concluded that employees in one of its Corporate Trust offices had, with respect to a single group of affiliated bond issuances, violated Company policies and procedures by waiving financial covenants, granting forbearances and accepting without disclosure to the bondholders, debt service payments from sources other than pledged revenues. The relationship manager was terminated. The Company reported the circumstances to, and cooperated with an investigation by, the Securities and Exchange Commission ("SEC"). On December 28, 2015, in an action brought by the SEC, the United States District Court for the District of New Jersey entered a judgment against the principals involved in issuing the bonds, precluding the principals from denying the alleged violations of the federal securities laws and requiring the principals to pay all outstanding principal, accrued interest, and other amounts required under the bond documents (now estimated to be approximately $40 million , less the value of the facilities securing repayment of the bonds), subject to oversight by a court appointed monitor. On September 7, 2016, the Bank agreed, and the SEC entered, a consent order finding that the Bank had violated Section 17(a) of the Securities Act of 1933 and Section 10(b) of the Securities Exchange Act and requiring the Bank to disgorge $1,067,721 of fees and pay a civil penalty of $600,000 . The Bank has disgorged the fees and paid the penalty. On August 26, 2016, the Bank was sued in the United States District Court for New Jersey by two bondholders in a putative class action on behalf of all holders of the bonds alleging the Bank participated in the fraudulent sale of securities by the principals. On September 14, 2016, the Bank was sued in the District Court of Tulsa County, Oklahoma by 19 bondholders alleging the Bank participated in the fraudulent sale of securities by the principals. Two separate small groups of bondholders have filed arbitration complaints with the Financial Institutions Regulatory Association respecting the bonds and other bonds for which the Bank served as indenture trustee. Management has been advised by counsel that the Bank has valid defenses to the claims. On September 15, 2017, the principal of the bond issuances filed for protection under Chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court for the Northern District of Georgia. The principal subsequently sought and obtained an order dismissing the Chapter 11 proceeding. The obligation of the principal to pay all principal and interest on the bonds is non-dischargeable in bankruptcy. The Bank expects the Court ordered payment plan will result in the payment of the bonds by the principals. Accordingly, no loss is probable at this time and no provision for loss has been made. If the payment plan does not result in payment of the bonds, a loss could become probable. A reasonable estimate cannot be made at this time though the amount could be material to the Company. On March 5, 2018, the Bank was sued in the Fulton, Georgia County District Court by the administratrix of a deceased resident who had sued for and obtained a judgment for wrongful death against one of the operators of a nursing home financed by one of the bonds which are the subject of the litigation discussed above. The judgment is alleged to total approximately $8 million in principal and interest at this time. Plaintiff alleges that BOKF, in its capacity as indenture trustee for the bonds, colluded with the borrower and others to defraud creditors of the nursing home by misleading the public about the solvency of the nursing home. Plaintiff alleges that this conduct has prevented her from collecting on her judgment. The Bank is advised by counsel that the Bank has valid defenses to the plaintiffs’ claims and no loss is probable. On March 14, 2017, the Bank was sued in the United States District Court for the Northern District of Oklahoma by bondholders in a second putative class action representing a different set of municipal securities. The bondholders in this second action allege two individuals purchased facilities from the principals who are the subject of the SEC New Jersey proceedings by means of the fraudulent sale of $60 million of municipal securities for which the Bank also served as indenture trustee. The bondholders allege the Bank failed to disclose that the seller of the purchased facilities had engaged in the conduct complained of in the New Jersey action. The Bank properly performed all duties as indenture trustee of this second set of municipal securities, timely commenced proceedings against the issuer of the securities when default occurred, is cooperating with the SEC in actions against the two principals, is not a target of the SEC proceedings, and has been advised by counsel that the Bank has valid defenses to the claims of these bondholders. It is the opinion of management that no loss is probable at this time. On March 7, 2017, a plaintiff filed a putative class action in the United States District Court for the Northern District of Texas alleging an extended overdraft fee charged by the Bank is interest and exceeds permitted rates. The Bank was previously sued in a class action in the United States District Court for the Northern District of Oklahoma making the same allegations. Pursuant to a motion to dismiss, the Northern District of Oklahoma Court action was dismissed. Other courts considering the question whether extended overdraft fees are interest have likewise determined such fees are not interest. The Bank has moved to dismiss the action. The Northern District of Texas Action was dismissed upon motion by the Bank with leave granted the plaintiff to file an amended complaint. The plaintiff filed an amended complaint. The Bank has again moved to dismiss the complaint, which motion to dismiss is pending before the Court. Management is advised by counsel that a loss is not probable and that the loss, if any, cannot be reasonably estimated. On July 6, 2018, a plaintiff served a petition in a putative class action in the Oklahoma District Court for Tulsa County Oklahoma alleging BOKF NA breached its Demand Deposit Agreements by charging overdraft and not sufficient funds fees to deposit accounts on the day of the transaction triggering the fee and by the bank's debit hold process causing overdraft fees. Management is advised by counsel that a loss is not probable and that the loss, if any, cannot be reasonably estimated. In the ordinary course of business, BOK Financial and its subsidiaries are subject to legal actions and complaints. Management believes, based upon the opinion of counsel, that the actions and liability or loss, if any, resulting from the final outcomes of the proceedings, will not have a material effect on the Company’s financial condition, results of operations or cash flows. Alternative Investment Commitments The Company sponsors two private equity funds and invests in several tax credit entities and other funds as permitted by banking regulations. Consolidation of these investments is based on the variable interest model determined by the nature of the entity. Variable interest entities are generally defined as entities that either do not have sufficient equity to finance their activities without support from other parties or whose equity investors lack a controlling financial interest. Variable interest entities are consolidated based on the determination that the Company is the primary beneficiary including the power to direct the activities that most significantly impact the variable interest's economic performance and the obligation to absorb losses of the variable interest or the right to receive benefits of the variable interest that could be significant to the variable interest. BOKF Equity, LLC, an indirect wholly-owned subsidiary, is the general partner of two consolidated private equity funds (“the Funds”). The Funds provide alternative investment opportunities to certain customers, some of which are related parties, through unaffiliated limited partnerships. These unaffiliated limited partnerships generally invest in distressed assets, asset buy-outs or venture capital companies. As general partner, BOKF Equity, LLC has the power to direct activities that most significantly affect the Funds' performance and contingent obligations to make additional investments totaling $3.4 million at June 30, 2018 . Substantially all of the obligations are offset by limited partner commitments. The Company does not accrue its contingent liability to fund investments. The Volcker Rule in Title VI of the Dodd-Frank Act will limit both the amount and structure of these types of investments. Consolidated tax credit investment entities represent the Company's interest in entities earning federal new market tax credits related to qualifying loans. The Company has the power to direct the activities that most significantly impact the variable interest's economic performance of the entity including being the primary beneficiary of or the obligation to absorb losses of the variable interest that could be significant to the variable interest. Other consolidated alternative investments include entities held under merchant banking authority. While the Company owns a majority of the voting interest in these entities, its ability to manage daily operations is limited by applicable banking regulations. Consolidated other assets includes total tangible assets, identifiable intangible assets and goodwill held by these entities. The Company also has interests in various unrelated alternative investments generally consisting of unconsolidated limited partnership interests in or loans to entities for which investment return is primarily in the form of tax credits or that invest in distressed real estate loans and properties, energy development, venture capital and other activities. The Company is prohibited by banking regulations from controlling or actively managing the activities of these investments and the Company's maximum exposure to loss is restricted to its investment balance. The Company's obligation to fund alternative investments is included in Other liabilities in the Consolidated Balance Sheets. A summary of consolidated and unconsolidated alternative investments as of June 30, 2018 , December 31, 2017 and June 30, 2017 is as follows (in thousands): June 30, 2018 Loans Other assets Other liabilities Other borrowings Non-controlling interests Consolidated: Private equity funds $ — $ 14,150 $ — $ — $ 10,747 Tax credit entities 10,000 10,964 — 10,964 10,000 Other — 17,608 1,871 — 1,867 Total consolidated $ 10,000 $ 42,722 $ 1,871 $ 10,964 $ 22,614 Unconsolidated: Tax credit entities $ 62,188 $ 147,071 $ 49,472 $ — $ — Other — 45,070 19,786 — — Total unconsolidated $ 62,188 $ 192,141 $ 69,258 $ — $ — December 31, 2017 Loans Other assets Other liabilities Other borrowings Non-controlling interests Consolidated: Private equity funds $ — $ 14,783 $ — $ — $ 11,927 Tax credit entities 10,000 10,964 — 10,964 10,000 Other — 1,040 — — 1,040 Total consolidated $ 10,000 $ 26,787 $ — $ 10,964 $ 22,967 Unconsolidated: Tax credit entities $ 52,852 $ 153,506 $ 47,859 $ — $ — Other — 38,397 22,968 — — Total unconsolidated $ 52,852 $ 191,903 $ 70,827 $ — $ — June 30, 2017 Loans Other assets Other liabilities Other borrowings Non-controlling interests Consolidated: Private equity funds $ — $ 16,905 $ — $ — $ 14,199 Tax credit entities 10,000 11,274 — 10,964 10,000 Other — 15,894 1,621 878 2,877 Total consolidated $ 10,000 $ 44,073 $ 1,621 $ 11,842 $ 27,076 Unconsolidated: Tax credit entities $ 59,744 $ 148,525 $ 63,822 $ — $ — Other — 33,155 13,680 — — Total unconsolidated $ 59,744 $ 181,680 $ 77,502 $ — $ — |
Shareholders' Equity
Shareholders' Equity | 6 Months Ended |
Jun. 30, 2018 | |
Stockholders' Equity Note [Abstract] | |
Shareholders' Equity [Text Block] | Shareholders' Equity On July 24, 2018 , the Company declared a quarterly cash dividend of $0.50 per common share payable on or about August 27, 2018 to shareholders of record as of August 13, 2018 . Dividends declared were $0.45 and $0.90 per share during the three and six months ended June 30, 2018 and $0.44 and $0.88 per share during the three and six months ended June 30, 2017 . Accumulated Other Comprehensive Income (Loss) AOCI includes unrealized gains and losses on available for sale ("AFS") securities and non-credit related unrealized losses on AFS securities for which an other-than-temporary impairment has been recorded in earnings. Unrealized losses on employee benefit plans will be reclassified into income as pension plan costs are recognized over the remaining service period of plan participants. Gains and losses in AOCI are net of deferred income taxes. A rollforward of the components of accumulated other comprehensive income (loss) is included as follows (in thousands): Unrealized Gain (Loss) on Available for Sale Securities Employee Benefit Plans Total Balance, December 31, 2016 $ (9,087 ) $ (1,880 ) $ (10,967 ) Net change in unrealized gain (loss) 33,369 — 33,369 Reclassification adjustments included in earnings: Gain on available for sale securities, net (2,429 ) — (2,429 ) Other comprehensive income (loss), before income taxes 30,940 — 30,940 Federal and state income taxes 1 12,009 — 12,009 Other comprehensive income (loss), net of income taxes 18,931 — 18,931 Balance, June 30, 2017 $ 9,844 $ (1,880 ) $ 7,964 Balance, December 31, 2017 $ (35,385 ) $ (789 ) $ (36,174 ) Transition adjustment for net unrealized gains on equity securities (2,709 ) — (2,709 ) Net change in unrealized gain (loss) (130,523 ) — (130,523 ) Reclassification adjustments included in earnings: Loss on available for sale securities, net 1,052 — 1,052 Other comprehensive income (loss), before income taxes (129,471 ) — (129,471 ) Federal and state income taxes 2 (33,049 ) — (33,049 ) Other comprehensive income (loss), net of income taxes (96,422 ) — (96,422 ) Balance, June 30, 2018 $ (134,516 ) $ (789 ) $ (135,305 ) 1 Calculated using a 39 percent blended federal and state statutory tax rate. 2 Calculated using a 25 percent blended federal and state statutory tax rate. |
Earnings Per Share
Earnings Per Share | 6 Months Ended |
Jun. 30, 2018 | |
Earnings Per Share [Abstract] | |
Earnings Per Share [Text Block] | Earnings Per Share (In thousands, except share and per share amounts) Three Months Ended Six Months Ended 2018 2017 2018 2017 Numerator: Net income attributable to BOK Financial Corp. shareholders $ 114,372 $ 88,147 $ 219,934 $ 176,503 Less: Earnings allocated to participating securities 956 926 1,978 1,929 Numerator for basic earnings per share – income available to common shareholders 113,416 87,221 217,956 174,574 Effect of reallocating undistributed earnings of participating securities 1 1 1 1 Numerator for diluted earnings per share – income available to common shareholders $ 113,417 $ 87,222 $ 217,957 $ 174,575 Denominator: Weighted average shares outstanding 65,448,035 65,416,274 65,463,671 65,436,909 Less: Participating securities included in weighted average shares outstanding 546,060 686,522 589,104 714,165 Denominator for basic earnings per common share 64,901,975 64,729,752 64,874,567 64,722,744 Dilutive effect of employee stock compensation plans 1 35,251 63,382 37,985 65,578 Denominator for diluted earnings per common share 64,937,226 64,793,134 64,912,552 64,788,322 Basic earnings per share $ 1.75 $ 1.35 $ 3.36 $ 2.70 Diluted earnings per share $ 1.75 $ 1.35 $ 3.36 $ 2.69 1 Excludes employee stock options with exercise prices greater than current market price. — — — — |
Reportable Segments
Reportable Segments | 6 Months Ended |
Jun. 30, 2018 | |
Segment Reporting [Abstract] | |
Reportable Segments [Text Block] | Reportable Segments Reportable segments reconciliation to the Consolidated Financial Statements for the three months ended June 30, 2018 is as follows (in thousands): Commercial Consumer Wealth Management Funds Management and Other BOK Financial Consolidated Net interest revenue from external sources $ 182,127 $ 21,746 $ 18,754 $ 15,935 $ 238,562 Net interest revenue (expense) from internal sources (37,102 ) 17,548 10,232 9,322 — Net interest revenue 145,025 39,294 28,986 25,257 238,562 Provision for credit losses 10,108 1,139 (105 ) (11,142 ) — Net interest revenue after provision for credit losses 134,917 38,155 29,091 36,399 238,562 Other operating revenue 43,047 46,320 70,642 (3,610 ) 156,399 Other operating expense 47,483 55,906 61,491 81,596 246,476 Net direct contribution 130,481 28,569 38,242 (48,807 ) 148,485 Gain (loss) on financial instruments, net 9 (6,411 ) — 6,402 — Change in fair value of mortgage servicing rights — 1,723 — (1,723 ) — Gain (loss) on repossessed assets, net (67 ) 174 — (107 ) — Corporate expense allocations 11,269 15,867 11,142 (38,278 ) — Net income before taxes 119,154 8,188 27,100 (5,957 ) 148,485 Federal and state income taxes 31,577 2,086 6,981 (7,314 ) 33,330 Net income 87,577 6,102 20,119 1,357 115,155 Net income attributable to non-controlling interests — — — 783 783 Net income attributable to BOK Financial Corp. shareholders $ 87,577 $ 6,102 $ 20,119 $ 574 $ 114,372 Average assets $ 18,072,155 $ 8,353,558 $ 8,495,557 $ (1,015,235 ) $ 33,906,035 Reportable segments reconciliation to the Consolidated Financial Statements for the six months ended June 30, 2018 is as follows (in thousands): Commercial Consumer Wealth Management Funds Management and Other BOK Financial Consolidated Net interest revenue from external sources $ 342,541 $ 43,499 $ 34,161 $ 38,097 $ 458,298 Net interest revenue (expense) from internal sources (65,445 ) 32,772 20,164 12,509 — Net interest revenue 277,096 76,271 54,325 50,606 458,298 Provision for credit losses 10,735 2,440 (153 ) (18,022 ) (5,000 ) Net interest revenue after provision for credit losses 266,361 73,831 54,478 68,628 463,298 Other operating revenue 82,722 91,269 145,409 (7,012 ) 312,388 Other operating expense 93,950 105,760 124,295 166,901 490,906 Net direct contribution 255,133 59,340 75,592 (105,285 ) 284,780 Gain on financial instruments, net 16 (29,672 ) — 29,656 — Change in fair value of mortgage servicing rights — 22,929 — (22,929 ) — Gain (loss) on repossessed assets, net (4,232 ) 66 — 4,166 — Corporate expense allocations 23,776 31,897 22,097 (77,770 ) — Net income before taxes 227,141 20,766 53,495 (16,622 ) 284,780 Federal and state income taxes 60,319 5,288 13,767 (15,096 ) 64,278 Net income 166,822 15,478 39,728 (1,526 ) 220,502 Net income attributable to non-controlling interests — — — 568 568 Net income attributable to BOK Financial Corp. shareholders $ 166,822 $ 15,478 $ 39,728 $ (2,094 ) $ 219,934 Average assets $ 17,933,756 $ 8,410,513 $ 8,296,780 $ (825,055 ) $ 33,815,994 Reportable segments reconciliation to the Consolidated Financial Statements for the three months ended June 30, 2017 is as follows (in thousands): Commercial Consumer Wealth Management Funds Management and Other BOK Financial Consolidated Net interest revenue from external sources $ 154,377 $ 20,756 $ 10,475 $ 19,596 $ 205,204 Net interest revenue (expense) from internal sources (21,715 ) 13,447 10,325 (2,057 ) — Net interest revenue 132,662 34,203 20,800 17,539 205,204 Provision for credit losses 1,228 926 (92 ) (2,062 ) — Net interest revenue after provision for credit losses 131,434 33,277 20,892 19,601 205,204 Other operating revenue 56,353 50,744 75,569 (414 ) 182,252 Other operating expense 59,511 55,125 60,616 75,633 250,885 Net direct contribution 128,276 28,896 35,845 (56,446 ) 136,571 Gain (loss) on financial instruments, net 3 5,224 — (5,227 ) — Change in fair value of mortgage servicing rights — (6,943 ) — 6,943 — Gain (loss) on repossessed assets, net 1,403 98 — (1,501 ) — Corporate expense allocations 8,955 16,912 9,947 (35,814 ) — Net income before taxes 120,727 10,363 25,898 (20,417 ) 136,571 Federal and state income taxes 49,382 4,031 10,209 (15,917 ) 47,705 Net income 71,345 6,332 15,689 (4,500 ) 88,866 Net income attributable to non-controlling interests — — — 719 719 Net income (loss) attributable to BOK Financial Corp. shareholders $ 71,345 $ 6,332 $ 15,689 $ (5,219 ) $ 88,147 Average assets $ 17,791,671 $ 8,441,831 $ 6,960,872 $ (825,803 ) $ 32,368,571 Reportable segments reconciliation to the Consolidated Financial Statements for the six months ended June 30, 2017 is as follows (in thousands): Commercial Consumer Wealth Management Funds Management and Other BOK Financial Consolidated Net interest revenue from external sources $ 301,753 $ 39,348 $ 21,960 $ 43,325 $ 406,386 Net interest revenue (expense) from internal sources (39,831 ) 25,864 19,181 (5,214 ) — Net interest revenue 261,922 65,212 41,141 38,111 406,386 Provision for credit losses (236 ) 2,199 (53 ) (1,910 ) — Net interest revenue after provision for credit losses 262,158 63,013 41,194 40,021 406,386 Other operating revenue 103,198 95,879 149,727 3,744 352,548 Other operating expense 112,416 107,991 121,025 154,164 495,596 Net direct contribution 252,940 50,901 69,896 (110,399 ) 263,338 Gain (loss) on financial instruments, net 41 3,557 — (3,598 ) — Change in fair value of mortgage servicing rights — (5,087 ) — 5,087 — Gain (loss) on repossessed assets, net 1,398 (39 ) — (1,359 ) — Corporate expense allocations 17,674 33,658 20,619 (71,951 ) — Net income before taxes 236,705 15,674 49,277 (38,318 ) 263,338 Federal and state income taxes 96,949 6,097 19,429 (36,667 ) 85,808 Net income 139,756 9,577 29,848 (1,651 ) 177,530 Net income attributable to non-controlling interests — — — 1,027 1,027 Net income attributable to BOK Financial Corp. shareholders $ 139,756 $ 9,577 $ 29,848 $ (2,678 ) $ 176,503 Average assets $ 17,716,738 $ 8,360,022 $ 6,960,872 $ (377,472 ) $ 32,660,160 |
Fees and Commissions Revenue Fe
Fees and Commissions Revenue Fees and Commissions Revenue | 6 Months Ended |
Jun. 30, 2018 | |
Revenue from Contract with Customer [Abstract] | |
Fees and Commissions Revenue [Text Block] | Fees and Commissions Revenue Fees and commissions revenue is generated through the sales of products, consisting primarily of financial instruments, and the performance of services for customers under contractual obligations. Revenue from providing services for customers is recognized at the time services are provided in an amount that reflects the consideration we expect to be entitled to for those services. Revenue is recognized based on the application of five steps: • Identify the contract with a customer • Identify the performance obligations in the contract • Determine the transaction price • Allocate the transaction price to the performance obligations in the contract • Recognize revenue when (or as) the Company satisfies a performance obligation For contracts with multiple performance obligations, individual performance obligations are accounted for separately if the customer can benefit from the good or service on its own or with other resources readily available to the customer and the promise to transfer goods and services to the customer is separately identifiable in the contract. The transaction price is allocated to the performance obligations based on relative standalone selling prices. Revenue is recognized on a gross basis whenever we have primary responsibility and risk in providing the services or products to our customers and have discretion in establishing the price for the services or products. Revenue is recognized on a net basis whenever we act as an agent for products or services of others. Brokerage and trading revenue includes revenues from trading, customer hedging, retail brokerage and investment banking. Trading revenue includes net realized and unrealized gains primarily related to sales of securities to institutional customers and related derivative contracts. Customer hedging revenue includes realized and unrealized changes in the fair value of derivative contracts held for customer risk management programs including credit valuation adjustments, as necessary. We offer commodity, interest rate, foreign exchange and equity derivatives to our customers. These customer contracts are offset with contracts with selected counterparties and exchanges to minimize changes in market risk from changes in commodity prices, interest rates or foreign exchange rates. Retail brokerage revenue represents fees and commissions earned on sales of fixed income securities, annuities, mutual funds and other financial instruments to retail customers. Investment banking revenue includes fees earned upon completion of underwriting and financial advisory services. Investment banking revenue also includes fees earned in conjunction with loan syndications. Transaction card revenue includes merchant discount fees and electronic funds transfer network fees, net of interchange fees paid to card issuers and assessments paid to card networks. Merchant discount fees represent fees paid by customers for account management and electronic processing of card transactions. Merchant discount fees are recognized at the time the customer’s transactions are processed or other services are performed. The Company also maintains the TransFund electronic funds transfer network for the benefit of its members, which includes the Bank. Electronic funds transfer fees are recognized as electronic transactions processed on behalf of its members. Fiduciary and asset management revenue includes fees from asset management, custody, recordkeeping, investment advisory and administration services. Revenue is recognized on an accrual basis at the time the services are performed and may be based on either the fair value of the account or the service provided. Deposit service charges and fees include commercial account service charges, overdraft fees, check card fee revenue and automated service charge and other deposit service fees. Fees are recognized at least quarterly in accordance with published deposit account agreements and disclosure statements for retail accounts or contractual agreements for commercial accounts. Item charges for overdraft or non-sufficient funds items are recognized as items are presented for payment. Account balance charges and activity fees are accrued monthly and collected in arrears. Commercial account activity fees may be offset by an earnings credit based on account balances. Check card fees represent interchange fees paid by a merchant bank for transactions processed from cards issued by the Company. Check card fees are recognized when transactions are processed. Mortgage banking revenue includes revenues recognized in conjunction with the origination, marketing and servicing of conventional and government-sponsored residential mortgage loans. Mortgage production revenue includes net realized gains (losses) on sales of residential mortgage loans in the secondary market and the net change in unrealized gains (losses) on residential mortgage loans held for sale. Mortgage production revenue also includes changes in the fair value of derivative contracts not designated as hedging instruments related to residential mortgage loan commitments and forward sales contracts. Mortgage servicing revenue includes servicing fee income and late charges on loans serviced for others. Fees and commissions revenue by reportable segment and primary service line is as follows for the three months ended June 30, 2018 . Commercial Consumer Wealth Management Funds Management & Other Consolidated Out of Scope 1 In Scope 2 Trading revenue $ — $ — $ 6,338 $ — $ 6,338 $ 6,338 $ — Customer hedging revenue 2,892 — 7,611 (708 ) 9,795 9,795 — Retail brokerage revenue — — 4,886 (75 ) 4,811 — 4,811 Investment banking revenue 2,903 — 2,641 — 5,544 2,300 3,244 Brokerage and trading revenue 5,795 — 21,476 (783 ) 26,488 18,433 8,055 TransFund EFT network revenue 18,048 1,009 (21 ) 2 19,038 — 19,038 Merchant services revenue 1,921 16 — — 1,937 — 1,937 Transaction card revenue 19,969 1,025 (21 ) 2 20,975 — 20,975 Personal trust revenue — — 20,558 — 20,558 — 20,558 Corporate trust revenue — — 4,935 — 4,935 — 4,935 Institutional trust & retirement plan services revenue — — 11,039 — 11,039 — 11,039 Investment management services and other — — 5,217 (50 ) 5,167 — 5,167 Fiduciary and asset management revenue — — 41,749 (50 ) 41,699 — 41,699 Commercial account service charge revenue 10,912 362 610 — 11,884 — 11,884 Overdraft fee revenue 98 8,768 32 7 8,905 — 8,905 Check card revenue — 5,343 — — 5,343 — 5,343 Automated service charge and other deposit fee revenue 38 1,633 24 — 1,695 — 1,695 Deposit service charges and fees 11,048 16,106 666 7 27,827 — 27,827 Mortgage production revenue — 9,915 — — 9,915 9,915 — Mortgage servicing revenue — 16,902 — (471 ) 16,431 16,431 — Mortgage banking revenue — 26,817 — (471 ) 26,346 26,346 — Other revenue 6,062 2,384 6,619 (547 ) 14,518 9,372 5,146 Total fees and commissions revenue $ 42,874 $ 46,332 $ 70,489 $ (1,842 ) $ 157,853 $ 54,151 $ 103,702 1 Out of scope revenue generally relates to financial instruments or contractual rights and obligations within the scope of other applicable accounting guidance. 2 In scope revenue represents revenue subject to FASB ASC Topic 606, Revenue from Contracts with Customers. Fees and commissions revenue by reportable segment and primary service line is as follows for the six months ended June 30, 2018 . Commercial Consumer Wealth Management Funds Management & Other Consolidated Out of Scope 1 In Scope 2 Trading revenue $ — $ — $ 16,732 $ — $ 16,732 $ 16,732 $ — Customer hedging revenue 4,914 — 14,576 1,212 20,702 20,702 — Retail brokerage revenue — — 9,738 (173 ) 9,565 — 9,565 Investment banking revenue 3,964 — 6,173 — 10,137 3,361 6,776 Brokerage and trading revenue 8,878 — 47,219 1,039 57,136 40,795 16,341 TransFund EFT network revenue 36,250 1,996 (40 ) 3 38,209 — 38,209 Merchant services revenue 3,725 31 — — 3,756 — 3,756 Transaction card revenue 39,975 2,027 (40 ) 3 41,965 — 41,965 Personal trust revenue — — 40,658 — 40,658 — 40,658 Corporate trust revenue — — 10,576 — 10,576 — 10,576 Institutional trust & retirement plan services revenue — — 22,489 — 22,489 — 22,489 Investment management services and other — — 9,906 (98 ) 9,808 — 9,808 Fiduciary and asset management revenue — — 83,629 (98 ) 83,531 — 83,531 Commercial account service charge revenue 21,856 721 1,215 — 23,792 — 23,792 Overdraft fee revenue 188 17,252 66 10 17,516 — 17,516 Check card revenue — 10,261 — — 10,261 — 10,261 Automated service charge and other deposit fee revenue 75 3,292 50 2 3,419 — 3,419 Deposit service charges and fees 22,119 31,526 1,331 12 54,988 — 54,988 Mortgage production revenue — 19,367 — — 19,367 19,367 — Mortgage servicing revenue — 33,929 — (925 ) 33,004 33,004 — Mortgage banking revenue — 53,296 — (925 ) 52,371 52,371 — Other revenue 11,919 4,447 13,157 (2,675 ) 26,848 17,727 9,121 Total fees and commissions revenue $ 82,891 $ 91,296 $ 145,296 $ (2,644 ) $ 316,839 $ 110,893 $ 205,946 1 Out of scope revenue generally relates to financial instruments or contractual rights and obligations within the scope of other applicable accounting guidance. 2 In scope revenue represents revenue subject to FASB ASC Topic 606, Revenue from Contracts with Customers. |
Fair Value Measurements
Fair Value Measurements | 6 Months Ended |
Jun. 30, 2018 | |
Fair Value Disclosures [Abstract] | |
Fair Value Measurements [Text Block] | Fair Value Measurements Fair value is defined by applicable accounting guidance as the price to sell an asset or transfer a liability in an orderly transaction between market participants in the principal market for the given asset or liability at the measurement date based on market conditions at that date. An orderly transaction assumes exposure to the market for a customary period for marketing activities prior to the measurement date and not a forced liquidation or distressed sale. Certain assets and liabilities are recorded in the Company’s financial statements at fair value. Some are recorded on a recurring basis and some on a non-recurring basis. For some assets and liabilities, observable market transactions and market information might be available. For other assets and liabilities, observable market transactions and market information might not be available. A hierarchy for fair value has been established which categorizes into three levels the inputs to valuation techniques used to measure fair value. The three levels are as follows: Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) - Fair value is based on unadjusted quoted prices in active markets for identical assets or liabilities. Significant Other Observable Inputs (Level 2) - Fair value is based on significant other observable inputs which are generally determined based on a single price for each financial instrument provided to us by an applicable third-party pricing service and is based on one or more of the following: • Quoted prices for similar, but not identical, assets or liabilities in active markets; • Quoted prices for identical or similar assets or liabilities in inactive markets; • Inputs other than quoted prices that are observable, such as interest rate and yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates; • Other inputs derived from or corroborated by observable market inputs. Significant Unobservable Inputs (Level 3) - Fair value is based upon model-based valuation techniques for which at least one significant assumption is not observable in the market. Transfers between levels are recognized as of the end of the reporting period. There were no transfers in or out of quoted prices in active markets for identical instruments to significant other observable inputs or significant unobservable inputs during the six months ended June 30, 2018 and 2017 , respectively. Transfers between significant other observable inputs and significant unobservable inputs during the six months ended June 30, 2018 and 2017 are included in the summary of changes in recurring fair values measured using unobservable inputs. The underlying methods used by the third-party pricing services are considered in determining the primary inputs used to determine fair values. Management has evaluated the methodologies employed by the third-party pricing services by comparing the price provided by the pricing service with other sources, including brokers' quotes, sales or purchases of similar instruments and discounted cash flows to establish a basis for reliance on the pricing service values. Significant differences between the pricing service provided value and other sources are discussed with the pricing service to understand the basis for their values. Based on all observable inputs, management may adjust prices obtained from third-party pricing services to more appropriately reflect the prices that would be received to sell assets or paid to transfer liabilities in orderly transactions in the current market. No significant adjustments were made to prices provided by third-party pricing services at June 30, 2018 , December 31, 2017 or June 30, 2017 . Assets and Liabilities Measured at Fair Value on a Recurring Basis The fair value of financial assets and liabilities measured on a recurring basis was as follows as of June 30, 2018 (in thousands): Total Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: Trading securities: U.S. government agency debentures $ 28,750 $ — $ 28,750 $ — U.S. government agency residential mortgage-backed securities 1,605,001 — 1,605,001 — Municipal and other tax-exempt securities 70,606 — 70,606 — Asset-backed securities 193,271 — 193,271 — Other trading securities 11,987 — 11,987 — Total trading securities 1,909,615 — 1,909,615 — Available for sale securities: U.S. Treasury 490 490 — — Municipal and other tax-exempt securities 10,697 — 8,667 2,030 U.S. government agency residential mortgage-backed securities 5,304,560 — 5,304,560 — Privately issued residential mortgage-backed securities 83,224 — 83,224 — Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,738,451 — 2,738,451 — Other debt securities 25,444 — 24,973 471 Total available for sale securities 8,162,866 490 8,159,875 2,501 Fair value option securities – U.S. government agency residential mortgage-backed securities 482,227 — 482,227 — Residential mortgage loans held for sale 223,301 — 209,058 14,243 Mortgage servicing rights 1 278,719 — — 278,719 Derivative contracts, net of cash collateral 2 373,373 21,056 352,317 — Liabilities: Derivative contracts, net of cash collateral 2 234,856 17,214 217,642 — 1 A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6 , Mortgage Banking Activities. 2 See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts in asset positions that were valued based on quoted prices in active markets for identical instruments (Level 1) are primarily exchange-traded interest rate and agricultural derivative contacts, net of cah margin. Derivative contacts in liability positions that were valued using quoted prices in active markets for identical instruments are exchange-traded energy and interest rate derivative contracts, net of cash margin. The fair value of financial assets and liabilities measured on a recurring basis was as follows as of December 31, 2017 (in thousands): Total Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Assets: Trading securities: U.S. government agency debentures $ 21,196 $ — $ 21,196 $ — U.S. government agency residential mortgage-backed securities 392,673 — 392,673 — Municipal and other tax-exempt securities 13,559 — 13,559 — Asset-backed securities 23,885 — 23,885 — Other trading securities 11,363 — 11,363 — Total trading securities 462,676 — 462,676 — Available for sale securities: U.S. Treasury 1,000 1,000 — — Municipal and other tax-exempt securities 27,080 — 22,278 4,802 U.S. government agency residential mortgage-backed securities 5,309,152 — 5,309,152 — Privately issued residential mortgage-backed securities 93,221 — 93,221 — Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,834,961 — 2,834,961 — Other debt securities 25,481 — 25,009 472 Perpetual preferred stock 15,767 — 15,767 — Equity securities and mutual funds 14,916 — 14,916 — Total available for sale securities 8,321,578 1,000 8,315,304 5,274 Fair value option securities – U.S. government agency residential mortgage-backed securities 755,054 — 755,054 — Residential mortgage loans held for sale 221,378 — 209,079 12,299 Mortgage servicing rights 1 252,867 — — 252,867 Derivative contracts, net of cash collateral 2 220,502 8,179 212,323 — Liabilities: Derivative contracts, net of cash collateral 2 171,963 — 171,963 — 1 A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6 , Mortgage Banking Activities. 2 See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded interest rate, energy and agricultural derivative contacts. Derivative contracts in liability positions that were valued using quoted prices in active markets for identical instruments (Level 1) are exchange-traded interest rate and energy derivative contracts, fully offset by cash margin. The fair value of financial assets and liabilities measured on a recurring basis was as follows as of June 30, 2017 (in thousands): Total Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Assets: Trading securities: U.S. government agency debentures $ 20,954 $ — $ 20,954 $ — U.S. government agency residential mortgage-backed securities 365,171 — 365,171 — Municipal and other tax-exempt securities 45,444 — 45,444 — Other trading securities 9,845 — 9,845 — Total trading securities 441,414 — 441,414 — Available for sale securities: U.S. Treasury 998 998 — — Municipal and other tax-exempt securities 32,765 — 28,110 4,655 U.S. government agency residential mortgage-backed securities 5,382,377 — 5,382,377 — Privately issued residential mortgage-backed securities 103,383 — 103,383 — Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,782,070 — 2,782,070 — Other debt securities 4,152 — — 4,152 Perpetual preferred stock 16,568 — 16,568 — Equity securities and mutual funds 18,728 3,516 15,212 — Total available for sale securities 8,341,041 4,514 8,327,720 8,807 Fair value option securities – U.S. government agency residential mortgage-backed securities 445,169 — 445,169 — Residential mortgage loans held for sale 287,259 — 274,524 12,735 Mortgage servicing rights 1 245,239 — — 245,239 Derivative contracts, net of cash collateral 2 280,289 46,366 233,923 — Liabilities: Derivative contracts, net of cash collateral 2 285,819 20,915 264,904 — 1 A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6 , Mortgage Banking Activities. 2 See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded energy and interest rate derivative contacts. Derivative contracts in liability positions that were valued using quoted prices in active markets for identical instruments (Level 1) are exchange-traded interest rate and agricultural derivative contracts, net cash margin. Following is a description of the Company's valuation methodologies used for assets and liabilities measured on a recurring basis: Securities The fair values of trading, available for sale and fair value option securities are based on quoted prices for identical instruments in active markets, when available. If quoted prices for identical instruments are not available, fair values are based on significant other observable inputs such as quoted prices of comparable instruments or interest rates and credit spreads, yield curves, volatilities, prepayment speeds and loss severities. The fair value of certain available for sale municipal and other debt securities may be based on significant unobservable inputs. These significant unobservable inputs include limited observed trades, projected cash flows, current credit rating of the issuers and, when applicable, the insurers of the debt and observed trades of similar debt. Discount rates are primarily based on references to interest rate spreads on comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies adjusted for a lack of trading volume. Significant unobservable inputs are developed by investment securities professionals involved in the active trading of similar securities. A summary of significant inputs used to value these securities follows. A management committee composed of senior members from the Company's Capital Markets, Risk Management and Finance departments assesses the appropriateness of these inputs quarterly. Derivatives All derivative instruments are carried on the balance sheet at fair value. Fair values for exchange-traded contracts are based on quoted prices. Fair values for over-the-counter interest rate, commodity and foreign exchange contracts are based on valuations provided either by third-party dealers in the contracts, quotes provided by independent pricing services, or a third-party provided pricing model that uses significant other observable market inputs. Credit risk is considered in determining the fair value of derivative instruments. Management determines fair value adjustments based on various risk factors including but not limited to current fair value, probability of default and loss given default. We also consider our own credit risk in determining the fair value of derivative contracts. Changes in our credit rating would affect the fair value of our derivative liabilities. In the event of a credit downgrade, the fair value of our derivative liabilities would increase. Residential Mortgage Loans Held for Sale Residential mortgage loans held for sale are carried on the balance sheet at fair value. The fair values of residential mortgage loans held for sale are based upon quoted market prices of such loans sold in securitization transactions, including related unfunded loan commitments and forward sales contracts. The fair value of mortgage loans that were unable to be sold to U.S. government agencies were determined using quoted prices of loans that are sold in securitization transactions with a liquidity discount applied. The following represents the changes for the three and six months ended June 30, 2018 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands): Available for Sale Securities Municipal and other tax-exempt securities Other debt securities Residential mortgage loans held for sale Balance, March 31, 2018 $ 1,891 $ 472 $ 13,871 Transfer to Level 3 from Level 2 1 — — 687 Purchases — — — Proceeds from sales — — (488 ) Redemptions and distributions — — — Gain (loss) recognized in earnings: Mortgage banking revenue — — 173 Other comprehensive income: Net change in unrealized gain 139 (1 ) — Balance, June 30, 2018 $ 2,030 $ 471 $ 14,243 1 Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to meet conforming standards. Available for Sale Securities Municipal and other tax-exempt Other debt securities Residential mortgage loans held for sale Balance, December 31, 2017 $ 4,802 $ 472 $ 12,299 Transfer to Level 3 from Level 2 1 — — 2,843 Purchases — — — Proceeds from sales — — (812 ) Redemptions and distributions (3,045 ) — — Gain (loss) recognized in earnings: Mortgage banking revenue — — (87 ) Other comprehensive income (loss): Net change in unrealized gain (loss) 273 (1 ) — Balance, June 30, 2018 $ 2,030 $ 471 $ 14,243 1 Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to meet conforming standards. The following represents the changes for the three and six months ended June 30, 2017 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands): Available for Sale Securities Municipal and other tax-exempt securities Other debt securities Residential mortgage loans held for sale Balance, March 31, 2017 $ 5,722 $ 4,153 $ 12,679 Transfer to Level 3 from Level 2 1 — — 853 Purchases — — — Proceeds from sales — — (1,030 ) Redemptions and distributions (1,100 ) — — Gain (loss) recognized in earnings: Mortgage banking revenue — — 233 Other comprehensive income (loss): Net change in unrealized gain (loss) 33 (1 ) — Balance, June 30, 2017 $ 4,655 $ 4,152 $ 12,735 1 Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to meet conforming standards. Available for Sale Securities Municipal and other tax-exempt Other debt securities Residential mortgage loans held for sale Balance, December 31, 2016 $ 5,789 $ 4,152 $ 11,617 Transfer to Level 3 from Level 2 1 — — 2,740 Purchases — — — Proceeds from sales — — (1,702 ) Redemptions and distributions (1,100 ) — — Gain (loss) recognized in earnings Mortgage banking revenue — — 80 Other comprehensive income (loss): Net change in unrealized gain (loss) (34 ) — — Balance, June 30, 2017 $ 4,655 $ 4,152 $ 12,735 1 Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to meet conforming standards. A summary of quantitative information about assets measured at fair value on a recurring basis using Significant Unobservable Inputs (Level 3) as of June 30, 2018 follows (in thousands): Par Value Amortized Cost/Unpaid Principal Balance Fair Value Valuation Technique(s) Unobservable Input Range (Weighted Average) Available for sale securities Municipal and other tax-exempt securities $ 2,050 $ 2,033 $ 2,030 Discounted cash flows 1 Interest rate spread 6.69%-6.69% (6.69%) 2 99.00%-99.00% (99.00%) 3 Other debt securities 500 500 471 Discounted cash flows 1 Interest rate spread 6.32%-6.32% (6.32%) 4 94.36% - 94.36 (94.36%) 3 Residential mortgage loans held for sale N/A 15,025 14,252 Quoted prices of loans sold in securitization transactions, with a liquidity discount applied Liquidity discount applied to the market value of mortgage loans qualifying for sale to U.S. government agencies. 94.86% 1 Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume. 2 Interest rate yields used to value investment grade tax-exempt securities represent a spread of 413 basis points over average yields for comparable tax-exempt securities. 3 Represents fair value as a percentage of par value. 4 Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 3 percent . A summary of quantitative information about Recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of December 31, 2017 follows (in thousands): Par Value Amortized Fair Value Valuation Technique(s) Unobservable Input Range (Weighted Average) Available for sale securities Municipal and other tax-exempt securities $ 5,095 $ 5,068 $ 4,802 Discounted cash flows 1 Interest rate spread 6.60%-6.60% (6.60%) 2 92.25%-94.76% (93.75%) 3 Other debt securities 500 500 472 Discounted cash flows 1 Interest rate spread 6.85%-6.85% (6.85%) 4 94.39% - 94.39 (94.39%) 3 Residential mortgage loans held for sale N/A 12,981 12,299 Quoted prices of loans sold in securitization transactions, with a liquidity discount applied Liquidity discount applied to the market value of mortgage loans qualifying for sale to U.S. government agencies. 94.75% 1 Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume. 2 Interest rate yields used to value investment grade tax-exempt securities represent a spread of 372 to 466 basis points over average yields for comparable tax-exempt securities. 3 Represents fair value as a percentage of par value. 4 Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 3 percent . A summary of quantitative information about Recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of June 30, 2017 follows (in thousands): Par Value Amortized Cost Fair Value Valuation Technique(s) Unobservable Input Range (Weighted Average) Available for sale securities Municipal and other tax-exempt securities $ 5,095 $ 5,067 $ 4,655 Discounted cash flows 1 Interest rate spread 5.98%-5.98% (5.98%) 2 90.00%-94.90% (92.93%) 3 Other debt securities 4,400 4,400 4,152 Discounted cash flows 1 Interest rate spread 5.41%-6.72% (6.57%) 4 94.31% - 94.38 (94.37%) 3 Residential mortgage loans held for sale N/A 13,274 12,735 Quoted prices of loans sold in securitization transactions, with a liquidity discount applied Liquidity discount applied to the market value of a mortgage loans qualifying for sale to U.S. government agencies. 95.94% 1 Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume. 2 Interest rate yields used to value investment grade tax-exempt securities represent a spread of 360 to 446 basis points over average yields for comparable tax-exempt securities. 3 Represents fair value as a percentage of par value. 4 Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 3 percent . Fair Value of Assets and Liabilities Measured on a Non-Recurring Basis Assets measured at fair value on a non-recurring basis include collateral for certain impaired loans and real property and other assets acquired to satisfy loans, which are based primarily on comparisons to completed sales of similar assets. The following represents the carrying value of assets measured at fair value on a non-recurring basis (and related losses) during the period. The carrying value represents only those assets with a balance at June 30, 2018 for which the fair value was adjusted during the six months ended June 30, 2018 : Fair Value Adjustments for the Carrying Value at June 30, 2018 Three Months Ended Six Months Ended Quoted Prices in Active Markets for Identical Instruments Significant Other Observable Inputs Significant Unobservable Inputs Gross charge-offs against allowance for loan losses Net losses and expenses of repossessed assets, net Gross charge-offs against allowance for loan losses Net losses and expenses of repossessed assets, net Impaired loans $ — $ 1,045 $ 11,763 $ 6,701 $ — $ 7,198 $ — Real estate and other repossessed assets — 1,996 6,838 — 118 — 5,242 The following represents the carrying value of assets measured at fair value on a non-recurring basis (and related losses) during the period. The carrying value represents only those assets with a balance at June 30, 2017 for which the fair value was adjusted during the six months ended June 30, 2017 : Fair Value Adjustments for the Carrying Value at June 30, 2017 Three Months Ended Six Months Ended Quoted Prices in Active Markets for Identical Instruments Significant Other Observable Inputs Significant Unobservable Inputs Gross charge-offs against allowance for loan losses Net losses and expenses of repossessed assets, net Gross charge-offs against allowance for loan losses Net losses and expenses of repossessed assets, net Impaired loans $ — $ 464 $ 3,570 $ 232 $ — $ 676 $ — Real estate and other repossessed assets — 3,488 530 — 772 — 906 The fair value of collateral-dependent impaired loans secured by real estate and real estate and other repossessed assets and the related fair value adjustments are generally based on unadjusted third-party appraisals. Our appraisal review policies require appraised values to be supported by observed inputs derived principally from or corroborated by observable market data. Appraisals that are not based on observable inputs or that require significant adjustments or fair value measurements that are not based on third-party appraisals are considered to be based on significant unobservable inputs. Non-recurring fair value measurements of collateral-dependent impaired loans and real estate and other repossessed assets based on significant unobservable inputs are generally due to estimates of current fair values between appraisal dates. Significant unobservable inputs include listing prices for the same or comparable assets, uncorroborated expert opinions or management's knowledge of the collateral or industry. Non-recurring fair value measurements of collateral dependent loans secured by mineral rights are generally determined by our internal staff of engineers on projected cash flows under current market conditions and are based on significant unobservable inputs. Projected cash flows are discounted according to risk characteristics of the underlying oil and gas properties. Assets are evaluated to demonstrate with reasonable certainty that crude oil, natural gas and natural gas liquids can be recovered from known oil and gas reservoirs under existing economic and operating conditions at current prices with existing conventional equipment, operating methods and costs. Significant unobservable inputs are developed by asset management and workout professionals and approved by senior Credit Administration executives. A summary of quantitative information about Non-recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of June 30, 2018 follows (in thousands): Fair Value Valuation Technique(s) Unobservable Input Range (Weighted Average) Impaired loans $ 11,763 Discounted cash flows Management knowledge of industry and non-real estate collateral including but not limited to recoverable oil and gas reserves, forward-looking commodity prices, estimated operating costs 43% - 84% (53%) 1 Real estate and other repossessed assets 6,838 Discounted cash flows Recoverable oil and gas reserves, forward-looking commodity prices, estimated operating costs N/A 1 Represents fair value as a percentage of the unpaid principal balance. A summary of quantitative information about Non-recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of June 30, 2017 follows (in thousands): Fair Value Valuation Technique(s) Unobservable Input Range (Weighted Average) Impaired loans $ 3,570 Discounted cash flows Recoverable oil and gas reserves, forward-looking commodity prices, estimated operating costs 75% - 90% (83%) 1 Real estate and other repossessed assets 530 Appraised value, as adjusted Marketability adjustments off appraised value2 65% - 88% (80%) 1 Represents fair value as a percentage of the unpaid principal balance. 2 Marketability adjustments include consideration of estimated costs to sell which is approximately 10% of the fair value. Fair Value of Financial Instruments The following table presents the carrying values and estimated fair values of all financial instruments, including those financial assets and liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis as of June 30, 2018 (dollars in thousands): Carrying Value Estimated Fair Value Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Cash and due from banks $ 585,801 $ 585,801 $ 585,801 $ — $ — Interest-bearing cash and cash equivalents 872,999 872,999 872,999 — — Trading securities: U.S. government agency debentures 28,750 28,750 — 28,750 — U.S. government agency residential mortgage-backed securities 1,605,001 1,605,001 — 1,605,001 — Municipal and other tax-exempt securities 70,606 70,606 — 70,606 — Asset-backed securities 193,271 193,271 — 193,271 — Other trading securities 11,987 11,987 — 11,987 — Total trading securities 1,909,615 1,909,615 — 1,909,615 — Investment securities: Municipal and other tax-exempt securities 173,097 174,205 — 174,205 — U.S. government agency residential mortgage-backed securities 13,989 13,984 — 13,984 — Other debt securities 204,927 215,195 — 215,195 — Total investment securities 392,013 403,384 — 403,384 — Available for sale securities: U.S. Treasury 490 490 490 — — Municipal and other tax-exempt securities 10,697 10,697 — 8,667 2,030 U.S. government agency residential mortgage-backed securities 5,304,560 5,304,560 — 5,304,560 — Privately issued residential mortgage-backed securities 83,224 83,224 — 83,224 — Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,738,451 2,738,451 — 2,738,451 — Other debt securities 25,444 25,444 — 24,973 471 Total available for sale securities 8,162,866 8,162,866 490 8,159,875 2,501 Fair value option securities – U.S. government agency residential mortgage-backed securities 482,227 482,227 — 482,227 — Residential mortgage loans held for sale 223,301 223,301 — 209,058 14,243 Loans: Commercial 11,349,039 11,116,828 — — 11,116,828 Commercial real estate 3,712,220 3,639,121 — — 3,639,121 Residential mortgage 1,942,250 1,917,099 — — 1,917,099 Personal 1,000,187 990,419 — — 990,419 Total loans 18,003,696 17,663,467 — — 17,663,467 Allowance for loan losses (215,142 ) — — — — Loans, net of allowance 17,788,554 17,663,467 — — 17,663,467 Mortgage servicing rights 278,719 278,719 — — 278,719 Derivative instruments with positive fair value, net of cash collateral 373,373 373,373 21,056 352,317 — Deposits with no stated maturity 20,041,532 20,041,532 — — 20,041,532 Time deposits 2,127,732 2,078,486 — — 2,078,486 Other borrowed funds 6,809,472 6,571,762 — — 6,571,762 Subordinated debentures 144,697 148,112 — 148,112 — Derivative instruments with negative fair value, net of cash collateral 234,856 234,856 17,214 217,642 — The following table presents the carrying values and estimated fair values of all financial instruments, including those financial assets and liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis as of December 31, 2017 (dollars in thousands): Carrying Value Estimated Fair Value Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Cash and due from banks $ 602,510 $ 602,510 $ 602,510 $ — $ — Interest-bearing cash and cash equivalents 1,714,544 1,714,544 1,714,544 — — Trading securities: U.S. government agency debentures 21,196 21,196 — 21,196 — U.S. government agency residential mortgage-backed securities 392,673 392,673 — 392,673 — Municipal and other tax-exempt securities 13,559 13,559 — 13,559 — Asset-backed securities 23,885 23,885 — 23,885 — Other trading securities 11,363 11,363 — 11,363 — Total trading securities 462,676 462,676 — 462,676 — Investment securities: Municipal and other tax-exempt securities 228,186 230,349 — 230,349 — U.S. government agency residential mortgage-backed securities 15,891 16,242 — 16,242 — Other debt securities 217,716 233,444 — 233,444 — Total investment securities 461,793 480,035 — 480,035 — Available for sale securities: U.S. Treasury 1,000 1,000 1,000 — — Municipal and other tax-exempt securities 27,080 27,080 — 22,278 4,802 U.S. government agency residential mortgage-backed securities 5,309,152 5,309,152 — 5,309,152 — Privately issued residential mortgage-backed securities 93,221 93,221 — 93,221 — Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,834,961 2,834,961 — 2,834,961 — Other debt securities 25,481 25,481 — 25,009 472 Perpetual preferred stock 15,767 15,767 — 15,767 — Equity securities and mutual funds 14,916 14,916 — 14,916 — Total available for sale securities 8,321,578 8,321,578 1,000 8,315,304 5,274 Fair value option securities – U.S. government agency residential mortgage-backed securities 755,054 755,054 — 755,054 — Residential mortgage loans held for sale 221,378 221,378 — 209,079 12,299 Loans: Commercial 10,733,975 10,524,627 — — 10,524,627 Commercial real estate 3,479,987 3,428,733 — — 3,428,733 Residential mortgage 1,973,686 1,977,721 — — 1,977,721 Personal 965,776 956,706 — — 956,706 Total loans 17,153,424 16,887,787 — — 16,887,787 Allowance for loan losses (230,682 ) — — — — Loans, net of allowance 16,922,742 16,887,787 — — 16,887,787 Mortgage servicing rights 252,867 252,867 — — 252,867 Derivative instruments with positive fair value, net of cash collateral 220,502 220,502 8,179 212,323 — Deposits with no stated maturity 19,962,889 19,962,889 — — 19,962,889 Time deposits 2,098,416 2,064,558 — — 2,064,558 Other borrowed funds 5,709,861 5,703,121 — — 5,703,121 Subordinated debentures 144,677 148,207 — 148,207 — Derivative instruments |
Federal and State Income Taxes
Federal and State Income Taxes Federal and State Income Taxes | 6 Months Ended |
Jun. 30, 2018 | |
Income Tax Disclosure [Abstract] | |
Income Tax Disclosure [Text Block] | Federal and State Income Taxes The Tax Cuts and Jobs Act (the "Act") enacted on December 22, 2017, reduced the federal corporate income tax rate from 35% to 21% beginning January 1, 2018. Provisions of the Act are broad and complex, and we continue to evaluate its effect on the Company's financial statements. Results of this evaluation did not significantly impact the Company's financial position or results of operations for the three and six months ended June 30, 2018. The reconciliations of income attributable to continuing operations at the U.S. federal statutory tax rate to income tax expense are as follows (in thousands): Three Months Ended Six Months Ended 2018 2017 2018 2017 Amount: Federal statutory tax $ 31,182 $ 47,800 $ 59,804 $ 92,168 Tax exempt revenue (1,653 ) (3,224 ) (3,465 ) (6,335 ) Effect of state income taxes, net of federal benefit 3,288 2,944 6,945 5,389 Utilization of tax credits, net of proportional amortization of low-income housing limited partnership investments (1,334 ) (889 ) (2,667 ) (2,976 ) Share-based compensation (424 ) 1,636 (2,044 ) (2,301 ) Adjustment to provisional amounts related to tax reform — — 1,895 — Other, net 2,271 (562 ) 3,810 (137 ) Total income tax expense $ 33,330 $ 47,705 $ 64,278 $ 85,808 Three Months Ended Six Months Ended 2018 2017 2018 2017 Percent of pretax income: Federal statutory tax 21.0 % 35.0 % 21.0 % 35.0 % Tax exempt revenue (1.1 ) (2.4 ) (1.2 ) (2.4 ) Effect of state income taxes, net of federal benefit 2.2 2.2 2.4 2.0 Utilization of tax credits, net of proportional amortization of low-income housing limited partnership investments (0.9 ) (0.7 ) (0.9 ) (1.1 ) Share-based compensation (0.3 ) 1.2 (0.7 ) (0.9 ) Adjustment to provisional amounts related to tax reform — — 0.7 — Other, net 1.5 (0.4 ) 1.3 — Total 22.4 % 34.9 % 22.6 % 32.6 % |
Subsequent Events
Subsequent Events | 6 Months Ended |
Jun. 30, 2018 | |
Subsequent Events [Abstract] | |
Subsequent Events [Text Block] | Subsequent Events The Company evaluated events from the date of the consolidated financial statements on June 30, 2018 through the issuance of those consolidated financial statements included in this Quarterly Report on Form 10-Q. No events were identified requiring recognition in and/or disclosure in the consolidated financial statements. |
Significant Accounting Polici22
Significant Accounting Policies (Policies) | 6 Months Ended |
Jun. 30, 2018 | |
Accounting Policies [Abstract] | |
Basis of Accounting, Policy [Policy Text Block] | The accompanying unaudited consolidated financial statements of BOK Financial Corporation (“BOK Financial” or “the Company”) have been prepared in accordance with accounting principles for interim financial information generally accepted in the United States and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. |
Principles of Consolidation [Policy Text Block] | The unaudited consolidated financial statements include accounts of BOK Financial and its subsidiaries, principally BOKF, NA (“the Bank”), BOK Financial Securities, Inc., The Milestone Group, Inc. and Cavanal Hill Investment Management Inc. Operating divisions of the Bank include Bank of Albuquerque, Bank of Arizona, Bank of Arkansas, Bank of Oklahoma, Bank of Texas, Colorado State Bank and Trust, Mobank, BOK Financial Mortgage and the TransFund electronic funds network. |
Reclassification, Policy [Policy Text Block] | Certain reclassifications have been made to conform to the current period presentation. |
Newly Adopted and Pending Accounting Policies [Policy Text Block] | Newly Adopted and Pending Accounting Policies Financial Accounting Standards Board (“FASB”) FASB Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers ("ASU 2014-09") On May 28, 2014, the FASB issued ASU 2014-09 to clarify the principles for recognizing revenue by providing a more robust framework that will give greater consistency and comparability in revenue recognition practices. In the new framework, an entity recognizes revenue in an amount that reflects the consideration to which the entity expects to be entitled in exchange for goods or services. The new model requires the identification of performance obligations included in contracts with customers, a determination of the transaction price and an allocation of the price to those performance obligations. The entity recognizes revenue when performance obligations are satisfied. Revenue from financial assets and liabilities is explicitly excluded from the scope of ASU 2014-09. Management adopted the standard in the first quarter of 2018 using the modified retrospective transition method. There were no significant cumulative effect adjustments as a result of implementation as of January 1, 2018 as our current revenue recognition policies generally conform with the principals in ASU 2014-09. FASB Accounting Standards Update No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net) ("ASU 2016-08") On March 17, 2016, the FASB Issued ASU 2016-08 to amend the principal versus agent implementation guidance in ASU 2014-09. The ASU clarifies that an entity should evaluate whether it is the principal or the agent for each specified good or service promised in a contract with a customer. Management adopted the standard in the first quarter of 2018. Interchange fees paid to issuing banks for card transactions processed related to its merchant processing services previously included in data processing and communication expense are now netted against the amounts charged to the merchant in transaction card processing revenue. FASB Accounting Standards Update No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities ("ASU 2016-01") On January 5, 2016, the FASB issued ASU 2016-01 over the recognition and measurement of financial assets and liabilities. The update requires equity investments, in general, to be measured at fair value with changes in fair value recognized in earnings. It also eliminates the requirement to disclose the methods and significant assumptions used to estimate the fair value for financial instruments measured at amortized cost, requires entities to use the exit price notion when measuring fair value, requires an entity to present separately in other comprehensive income the portion of the total change in fair value of a liability resulting from a change in the instrument-specific credit risk when the fair value option has been elected, requires separate presentation of financial assets and liabilities by measurement category and form on the balance sheet or accompanying notes, clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity's other deferred tax assets, and simplifies the impairment assessment of equity investments without readily determinable fair values. Management adopted the standard in the first quarter of 2018. Upon adoption, net unrealized gains of $2.7 million from equity securities were reclassified from other comprehensive income to retained earnings. FASB Accounting Standards Update No. 2016-02, Leases (Topic 842) ("ASU 2016-02") On February 25, 2016, the FASB issued ASU 2016-02 to increase transparency and comparability by recognizing lease assets and liabilities on the balance sheet and disclosing key information about leasing arrangements. Lessees will be required to recognize an obligation for future lease payments measured on a discounted basis and a right-of-use asset. The ASU is effective for the Company for interim and annual periods beginning after December 15, 2018 and requires transition through a modified retrospective approach for leases existing at or entered into after January 1, 2017. The Company currently estimates that implementation of ASU 2016-02 will increase reported right of use assets and liabilities by approximately $100 million to $150 million . FASB Accounting Standards Update No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Assets Measured at Amortized Cost ("ASU 2016-13") On June 16, 2016, the FASB issued ASU 2016-13 in order to provide more timely recording of credit losses on loans and other financial instruments. The ASU adds an impairment model (known as the current expected credit loss ("CECL") model) that is based on expected credit losses rather than incurred credit losses. It requires measurement of all expected credit losses for financial assets carried at amortized cost, including loans and investment securities, based on historical experience, current conditions, and reasonable and supportable forecasts. ASU 2016-13 also changes the recognition of other-than-temporary impairment of available for sale securities to an allowance methodology from a direct write-down methodology. ASU 2016-13 will be effective for the Company for annual reporting periods beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for annual reporting periods beginning after December 15, 2018. ASU 2016-13 will be applied through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. The Company has established a CECL implementation team in order to evaluate the impact the adoption of ASU 2016-13 will have on the Company's financial statements. The CECL implementation team, overseen by the Chief Credit Officer, Chief Financial Officer, and Chief Risk Officer, has developed a project plan that incorporates input from various departments within the bank including Credit, Financial Reporting, Risk, and Information Technology among others. Key implementation activities for 2018 include portfolio segmentation, model development, as well as process and information systems enhancements. FASB Accounting Standards Update No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15") On August 26, 2016, the FASB issued ASU 2016-15, which amends guidance in ASC 230 on the classification of certain cash receipts and payments in the statement of cash flows. The amendments address eight cash flow issues. Management adopted the standard in first quarter of 2018. Adoption of ASU 2016-15 did not have a material impact on the Company's financial statements. FASB Accounting Standards Update No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities ("ASU 2017-12") On August 28, 2017, the FASB issued ASU 2017-12, which amends the hedge accounting recognition and presentation requirements in ASC 815 in order to improve transparency and understandability of information and reduce the complexity. The update expands the types of transactions eligible for hedge accounting, eliminates the requirement to separately measure and present hedge ineffectiveness, simplifies hedge effectiveness assessments and updates documentation and presentation requirements. The update allows the reclassification of certain debt securities from held to maturity to available for sale if the debt security is eligible to be hedged under the last-of-layer method. ASU 2017-12 is effective for the Company for fiscal years beginning after December 15, 2018, and interim periods therein; however, early adoption is permitted. The Company is evaluating the impact the adoption of ASU 2017-12 will have on the Company's financial statements. FASB Accounting Standards Update No. 2018-05, Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118 (SAB 118). On March 13, 2018, the FASB issued ASU 2018-05, which adds SEC guidance related to SAB 118 - Income Tax Accounting Implications of the Tax Cuts and Jobs Act . ASU 2018-05 was effective upon issuance. |
Derivatives, Policy [Policy Text Block] | Derivative instruments may be used by the Company as part of its internal risk management programs or may be offered to customers. All derivative instruments are carried at fair value and changes in fair value are reported in earnings as they occur. Credit risk is also considered in determining fair value. Deterioration in the credit rating of customer or other counterparties reduced the fair value of asset contracts. Deterioration of our credit rating could decrease the fair value of our derivative liabilities. When bilateral netting agreements or similar arrangements exist between the Company and its counterparties that create a single legal claim or obligation to pay or receive the net amount in settlement of the individual derivative contracts, the Company reports derivative assets and liabilities on a net by derivative contract type by counterparty basis. Derivative contracts may require the Company to provide or receive cash margin as collateral for derivative assets and liabilities. Derivative assets and liabilities are reported net of cash margin when certain conditions are met. In addition, derivative contracts executed with customers under Customer Risk Management Programs may be secured by non-cash collateral in conjunction with a credit agreement with that customer. Access to collateral in the event of default is reasonably assured. None of these derivative contracts have been designated as hedging instruments for accounting purposes. Customer Risk Management Programs BOK Financial offers programs to permit its customers to manage various risks, including fluctuations in energy, cattle and other agricultural products, interest rates and foreign exchange rates with derivative contracts. Customers may also manage interest rate risk through interest rate swaps used by borrowers to modify interest rate terms of their loans or to-be-announced securities used by mortgage banking customers to hedge their loan production. Derivative contracts are executed between the customers and BOK Financial. Offsetting contracts are executed between BOK Financial and other selected counterparties to minimize the risk of changes in commodity prices, interest rates or foreign exchange rates. The counterparty contracts are identical to customer contracts, except for a fixed pricing spread or fee paid to BOK Financial as profit and compensation for administrative costs and credit risk which is recognized over the life of the contracts and included in Other operating revenue – Brokerage and trading revenue in the Consolidated Statements of Earnings. Internal Risk Management Programs BOK Financial may use derivative contracts in managing its interest rate sensitivity, as part of its economic hedge of the change in the fair value of mortgage servicing rights and to mitigate the market risk of holding trading securities. Changes in the fair value of derivative instruments used in managing interest rate sensitivity and as part of the economic hedge of changes in the fair value of mortgage servicing rights are included in Other operating revenue – Gain (loss) on derivatives, net in the Consolidated Statements of Earnings. Changes in the fair value of derivative instruments used to mitigate the market risk of holding trading securities are included in Other operating revenue – Brokerage and trading revenue. As discussed in Note 6 , certain derivative contracts not designated as hedging instruments related to mortgage loan commitments and forward sales contracts are included in Residential mortgage loans held for sale on the Consolidated Balance Sheets. See Note 6 for additional discussion of notional, fair value and impact on earnings of these contracts. |
Loans and Allowances for Credit Losses, Loans [Policy Text Block] | Loans Loans are either secured or unsecured based on the type of loan and the financial condition of the borrower. Repayment is generally expected from cash flow or proceeds from the sale of selected assets of the borrower. BOK Financial is exposed to risk of loss on loans due to the borrower’s difficulties, which may arise from any number of factors, including problems within the respective industry or local economic conditions. Access to collateral, in the event of borrower default, is reasonably assured through adherence to applicable lending laws and through sound lending standards and credit review procedures. Accounting policies for all loans, excluding residential mortgage loans guaranteed by U.S. government agencies, are as follows. Interest is accrued at the applicable interest rate on the principal amount outstanding. Loans are placed on nonaccruing status when, in the opinion of management, full collection of principal or interest is uncertain. Internally risk graded loans are individually evaluated for nonaccruing status quarterly. Non-risk graded loans are generally placed on nonaccruing status when more than 90 days past due or within 60 days of being notified of the borrower's bankruptcy filing. Interest previously accrued but not collected is charged against interest income when the loan is placed on nonaccruing status. Payments on nonaccruing loans are applied to principal or recognized as interest income, according to management’s judgment as to the collectability of principal. Loans may be returned to accruing status when, in the opinion of management, full collection of principal and interest, including principal previously charged off, is probable based on improvements in the borrower’s financial condition or a sustained period of performance. Loans to borrowers experiencing financial difficulties may be modified in troubled debt restructurings ("TDRs"). All TDRs are classified as nonaccruing, excluding loans guaranteed by U.S. government agencies. Modifications generally consist of extension of payment terms or interest rate concessions and may result either voluntarily through negotiations with the borrower or involuntarily through court order. Generally, principal and accrued but unpaid interest is not voluntarily forgiven. Performing loans may be renewed under the current collateral value, debt service ratio and other underwriting standards. Nonaccruing loans may be renewed and will remain classified as nonaccruing. Occasionally, loans, other than residential mortgage loans, may be held for sale in order to manage credit concentration. These loans are carried at the lower of cost or fair value with gains or losses recognized in other gains (losses), net in the Statements of Earnings. All loans are charged off when the loan balance or a portion of the loan balance is no longer supported by the paying capacity of the borrower or when the required cash flow is reduced in a TDR. The charge-off amount is determined through a quarterly evaluation of available cash resources and collateral value and charge-offs are taken in the quarter in which the loss is identified. Non-risk graded loans that are past due between 60 days and 180 days , based on the loan product type, are charged off. Loans to borrowers whose personal obligation has been discharged through Chapter 7 bankruptcy proceedings are charged off within 60 days of notice of the bankruptcy filing, regardless of payment status. Loan origination and commitment fees and direct loan acquisition and origination costs are deferred and amortized as an adjustment to yield over the life of the loan or over the commitment period, as applicable. Amortization does not anticipate loan prepayments. Net unamortized fees are recognized in full at time of payoff. Qualifying residential mortgage loans guaranteed by U.S. government agencies have been sold into GNMA pools. Under certain performance conditions specified in government programs, the Company may have the right, but not the obligation to repurchase loans from GNMA pools. These loans no longer qualify for sale accounting and are recognized in the Consolidated Balance Sheets. Guaranteed loans are considered impaired because we do not expect to receive all principal and interest based on the loan's contractual terms. The principal balance continues to be guaranteed; however, interest accrues at a curtailed rate as specified in the programs. The carrying value of these loans is reduced based on an estimate of the expected cash flows discounted at the original note rate plus a liquidity spread. Guaranteed loans may be modified in TDRs in accordance with U.S. government agency guidelines. Interest continues to accrue based on the modified rate. Guaranteed loans may either be resold into GNMA pools after a performance period specified by the programs or foreclosed and conveyed to the guarantors. Loans are disaggregated into portfolio segments and further disaggregated into classes. The portfolio segment is the level at which the Company develops and documents a systematic method for determining its allowance for credit losses. Classes are a further disaggregation of portfolio segments based on the risk characteristics of the loans and the Company’s method for monitoring and assessing credit risk. |
Loans and Allowances for Credit Losses, Allowances for Credit Losses [Policy Text Block] | Allowances for Credit Losses BOK Financial maintains an allowance for loan losses and an accrual for off-balance sheet credit risk. The accrual for off-balance sheet credit risk is maintained at a level that is appropriate to cover estimated losses associated with credit instruments that are not currently recognized as assets such as loan commitments, standby letters of credit or guarantees. As discussed in greater detail in Note 6 , the Company also has separate accruals for off-balance sheet credit risk related to residential mortgage loans previously sold with full or partial recourse and for residential mortgage loans sold to government sponsored agencies under standard representations and warranties. The appropriateness of the allowance for loan losses and accrual for off-balance sheet credit losses (collectively "allowance for credit losses") is assessed by management based on an ongoing quarterly evaluation of the probable estimated losses inherent in the portfolio, including probable losses on both outstanding loans and unused commitments. The allowance for loan losses consists of specific allowances attributed to impaired loans that have not yet been charged down to amounts we expect to recover, general allowances for unimpaired loans based on estimated loss rates by loan class and nonspecific allowances based on general economic conditions, risk concentration and related factors. There have been no material changes in the approach or techniques utilized in developing the allowance for loan losses and the accrual for off-balance sheet credit losses for the three and six months ended June 30, 2018 . Loans are considered to be impaired when it becomes probable that BOK Financial will be unable to collect all amounts due according to the contractual terms of the loan agreements. Internally risk graded loans are evaluated individually for impairment. Substantially all commercial and commercial real estate loans and certain residential mortgage and consumer loans are risk graded based on evaluation of the borrowers' ability to repay. Certain commercial loans and most residential mortgage and consumer loans are small balance, homogeneous pools of loans that are not risk graded. Non-risk graded loans are identified as impaired based on performance status. Generally, non-risk graded loans 90 days or more past due or modified in a TDR or in bankruptcy are considered to be impaired. Specific allowances for impaired loans are measured by an evaluation of estimated future cash flows discounted at the loans’ initial effective interest rate or the fair value of collateral for certain collateral dependent loans. Collateral value of real property is generally based on third party appraisals that conform to Uniform Standards of Professional Appraisal Practice, less estimated selling costs. Appraised values are on an "as-is" basis and are generally not adjusted by the Company. Updated appraisals are obtained at least annually or more frequently if market conditions indicate collateral values have declined. Collateral value of mineral rights is generally determined by our internal staff of engineers based on projected cash flows under current market conditions. Collateral values and available cash resources that support impaired loans are evaluated quarterly. Historical statistics may be used as a practical way to estimate impairment in limited situations, such as when a collateral dependent loan is identified as impaired at the end of a reporting period, until an updated appraisal of collateral value is received or a full assessment of future cash flows is completed. Estimates of future cash flows and collateral values require significant judgments and may be volatile. General allowances for unimpaired loans are based on estimated loss rates by loan class. The gross loss rate for each loan class is determined by the greater of the current gross loss rate based on the most recent twelve months or a ten-year gross loss rate. Recoveries are not directly considered in the estimation of loss rates. Recoveries generally do not follow predictable patterns and are not received until well after the charge-off date as a result of protracted legal actions. For risk graded loans, gross loss rates are adjusted for changes in risk grading. For each loan class, the current weighted average risk grade is compared to the long-term average risk grade. This comparison determines whether credit risk in each loan class is increasing or decreasing. Loss rates are adjusted upward or downward in proportion to changes in average risk grading. General allowances for unimpaired loans also consider inherent risks identified for each loan class. Inherent risks consider loss rates that most appropriately represent the current credit cycle and other factors attributable to specific loan classes which have not yet been represented in the gross loss rates or risk grading. These factors include changes in commodity prices or engineering imprecision, which may affect the value of reserves that secure our energy loan portfolio, construction risk that may affect commercial real estate loans, changes in regulations and public policy that may disproportionately impact health care loans and changes in loan products. Nonspecific allowances are maintained for risks beyond factors specific to a particular loan or loan class. These factors include trends in the economy of our primary lending areas, concentrations in large balance loans and other relevant factors. An accrual for off-balance sheet credit losses is included in Other liabilities in the Consolidated Balance Sheets. The appropriateness of this accrual is determined in the same manner as the allowance for loan losses. A provision for credit losses is charged against or credited to earnings in amounts necessary to maintain an appropriate allowance for credit losses. Recoveries of loans previously charged off are added to the allowance when received. |
Revenue Recognition, Policy [Policy Text Block] | Fees and commissions revenue is generated through the sales of products, consisting primarily of financial instruments, and the performance of services for customers under contractual obligations. Revenue from providing services for customers is recognized at the time services are provided in an amount that reflects the consideration we expect to be entitled to for those services. Revenue is recognized based on the application of five steps: • Identify the contract with a customer • Identify the performance obligations in the contract • Determine the transaction price • Allocate the transaction price to the performance obligations in the contract • Recognize revenue when (or as) the Company satisfies a performance obligation For contracts with multiple performance obligations, individual performance obligations are accounted for separately if the customer can benefit from the good or service on its own or with other resources readily available to the customer and the promise to transfer goods and services to the customer is separately identifiable in the contract. The transaction price is allocated to the performance obligations based on relative standalone selling prices. Revenue is recognized on a gross basis whenever we have primary responsibility and risk in providing the services or products to our customers and have discretion in establishing the price for the services or products. Revenue is recognized on a net basis whenever we act as an agent for products or services of others. Brokerage and trading revenue includes revenues from trading, customer hedging, retail brokerage and investment banking. Trading revenue includes net realized and unrealized gains primarily related to sales of securities to institutional customers and related derivative contracts. Customer hedging revenue includes realized and unrealized changes in the fair value of derivative contracts held for customer risk management programs including credit valuation adjustments, as necessary. We offer commodity, interest rate, foreign exchange and equity derivatives to our customers. These customer contracts are offset with contracts with selected counterparties and exchanges to minimize changes in market risk from changes in commodity prices, interest rates or foreign exchange rates. Retail brokerage revenue represents fees and commissions earned on sales of fixed income securities, annuities, mutual funds and other financial instruments to retail customers. Investment banking revenue includes fees earned upon completion of underwriting and financial advisory services. Investment banking revenue also includes fees earned in conjunction with loan syndications. Transaction card revenue includes merchant discount fees and electronic funds transfer network fees, net of interchange fees paid to card issuers and assessments paid to card networks. Merchant discount fees represent fees paid by customers for account management and electronic processing of card transactions. Merchant discount fees are recognized at the time the customer’s transactions are processed or other services are performed. The Company also maintains the TransFund electronic funds transfer network for the benefit of its members, which includes the Bank. Electronic funds transfer fees are recognized as electronic transactions processed on behalf of its members. Fiduciary and asset management revenue includes fees from asset management, custody, recordkeeping, investment advisory and administration services. Revenue is recognized on an accrual basis at the time the services are performed and may be based on either the fair value of the account or the service provided. Deposit service charges and fees include commercial account service charges, overdraft fees, check card fee revenue and automated service charge and other deposit service fees. Fees are recognized at least quarterly in accordance with published deposit account agreements and disclosure statements for retail accounts or contractual agreements for commercial accounts. Item charges for overdraft or non-sufficient funds items are recognized as items are presented for payment. Account balance charges and activity fees are accrued monthly and collected in arrears. Commercial account activity fees may be offset by an earnings credit based on account balances. Check card fees represent interchange fees paid by a merchant bank for transactions processed from cards issued by the Company. Check card fees are recognized when transactions are processed. Mortgage banking revenue includes revenues recognized in conjunction with the origination, marketing and servicing of conventional and government-sponsored residential mortgage loans. Mortgage production revenue includes net realized gains (losses) on sales of residential mortgage loans in the secondary market and the net change in unrealized gains (losses) on residential mortgage loans held for sale. Mortgage production revenue also includes changes in the fair value of derivative contracts not designated as hedging instruments related to residential mortgage loan commitments and forward sales contracts. Mortgage servicing revenue includes servicing fee income and late charges on loans serviced for others. |
Securities (Tables)
Securities (Tables) | 6 Months Ended |
Jun. 30, 2018 | |
Marketable Securities [Abstract] | |
Trading Securities [Table Text Block] | The fair value and net unrealized gain (loss) included in trading securities are as follows (in thousands): June 30, 2018 December 31, 2017 June 30, 2017 Fair Value Net Unrealized Gain (Loss) Fair Value Net Unrealized Gain (Loss) Fair Value Net Unrealized Gain (Loss) U.S. government agency debentures $ 28,750 $ 10 $ 21,196 $ 8 $ 20,954 $ (9 ) U.S. government agency residential mortgage-backed securities 1,605,001 1,923 392,673 (517 ) 365,171 (1,032 ) Municipal and other tax-exempt securities 70,606 231 13,559 83 45,444 230 Asset-backed securities 193,271 250 23,885 (26 ) — — Other trading securities 11,987 32 11,363 4 9,845 (175 ) Total trading securities $ 1,909,615 $ 2,446 $ 462,676 $ (448 ) $ 441,414 $ (986 ) |
Investment Securities (Held-to-Maturity) [Table Text Block] | The amortized cost and fair values of investment securities are as follows (in thousands): June 30, 2018 Amortized Fair Gross Unrealized Cost Value Gain Loss Municipal and other tax-exempt $ 173,097 $ 174,205 $ 1,779 $ (671 ) U.S. government agency residential mortgage-backed securities 13,989 13,984 232 (237 ) Other debt securities 204,927 215,195 12,259 (1,991 ) Total investment securities $ 392,013 $ 403,384 $ 14,270 $ (2,899 ) December 31, 2017 Amortized Fair Gross Unrealized Cost Value Gain Loss Municipal and other tax-exempt $ 228,186 $ 230,349 $ 2,967 $ (804 ) U.S. government agency residential mortgage-backed securities 15,891 16,242 446 (95 ) Other debt securities 217,716 233,444 17,095 (1,367 ) Total investment securities $ 461,793 $ 480,035 $ 20,508 $ (2,266 ) June 30, 2017 Amortized Fair Gross Unrealized Cost Value Gain Loss Municipal and other tax-exempt $ 267,375 $ 270,531 $ 3,384 $ (228 ) U.S. government agency residential mortgage-backed securities 18,035 18,642 668 (61 ) Other debt securities 205,016 226,502 22,040 (554 ) Total investment securities $ 490,426 $ 515,675 $ 26,092 $ (843 ) The amortized cost and fair values of investment securities at June 30, 2018 , by contractual maturity, are as shown in the following table (dollars in thousands): Less than One Year One to Five Years Six to Ten Years Over Ten Years Total Weighted Average Maturity² Municipal and other tax-exempt: Amortized cost $ 60,535 $ 62,005 $ 28,117 $ 22,440 $ 173,097 4.02 Fair value 60,487 61,736 29,038 22,944 174,205 Nominal yield¹ 2.07 % 2.58 % 5.81 % 5.12 % 3.25 % Other debt securities: Amortized cost 14,877 52,170 123,762 14,118 204,927 5.99 Fair value 15,023 54,233 132,912 13,027 215,195 Nominal yield 3.99 % 4.69 % 5.67 % 4.34 % 5.21 % Total fixed maturity securities: Amortized cost $ 75,412 $ 114,175 $ 151,879 $ 36,558 $ 378,024 5.08 Fair value 75,510 115,969 161,950 35,971 389,400 Nominal yield 2.45 % 3.54 % 5.69 % 4.82 % 4.31 % Residential mortgage-backed securities: Amortized cost $ 13,989 ³ Fair value 13,984 Nominal yield 4 2.76 % Total investment securities: Amortized cost $ 392,013 Fair value 403,384 Nominal yield 4.26 % 1 Calculated on a taxable equivalent basis using a 25 percent effective tax rate. 2 Expected maturities may differ from contractual maturities, because borrowers may have the right to call or prepay obligations with or without penalty. 3 The average expected lives of residential mortgage-backed securities were 5.0 years based upon current prepayment assumptions. 4 The nominal yield on residential mortgage-backed securities is based upon prepayment assumptions at the purchase date. Actual yields earned may differ significantly based upon actual prepayments. See Quarterly Financial Summary - Unaudited for current yields on the investment securities portfolio. |
Available For Sale Securities [Table Text Block] | The amortized cost and fair value of available for sale securities are as follows (in thousands): June 30, 2018 Amortized Fair Gross Unrealized Cost Value Gain Loss OTTI U.S. Treasury $ 494 $ 490 $ — $ (4 ) $ — Municipal and other tax-exempt 10,590 10,697 111 (4 ) — Residential mortgage-backed securities: U. S. government agencies: FNMA 3,088,585 3,007,885 2,774 (83,474 ) — FHLMC 1,580,185 1,538,582 738 (42,341 ) — GNMA 772,785 758,093 915 (15,607 ) — Total U.S. government agencies 5,441,555 5,304,560 4,427 (141,422 ) — Private issue 65,376 83,224 18,221 — (373 ) Total residential mortgage-backed securities 5,506,931 5,387,784 22,648 (141,422 ) (373 ) Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,799,953 2,738,451 1,815 (63,317 ) — Other debt securities 25,500 25,444 12 (68 ) — Total available for sale securities $ 8,343,468 $ 8,162,866 $ 24,586 $ (204,815 ) $ (373 ) December 31, 2017 Amortized Fair Gross Unrealized Cost Value Gain Loss OTTI U.S. Treasury $ 1,000 $ 1,000 $ — $ — $ — Municipal and other tax-exempt 27,182 27,080 181 (283 ) — Residential mortgage-backed securities: U. S. government agencies: FNMA 3,021,551 2,997,563 11,549 (35,537 ) — FHLMC 1,545,971 1,531,009 3,148 (18,110 ) — GNMA 787,626 780,580 1,607 (8,653 ) — Total U.S. government agencies 5,355,148 5,309,152 16,304 (62,300 ) — Private issue 74,311 93,221 19,301 — (391 ) Total residential mortgage-backed securities 5,429,459 5,402,373 35,605 (62,300 ) (391 ) Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,858,885 2,834,961 1,963 (25,887 ) — Other debt securities 25,500 25,481 50 (69 ) — Perpetual preferred stock 12,562 15,767 3,205 — — Equity securities and mutual funds 14,487 14,916 515 (86 ) — Total available for sale securities $ 8,369,075 $ 8,321,578 $ 41,519 $ (88,625 ) $ (391 ) June 30, 2017 Amortized Fair Gross Unrealized Cost Value Gain Loss OTTI U.S. Treasury $ 1,000 $ 998 $ — $ (2 ) $ — Municipal and other tax-exempt 32,885 32,765 293 (413 ) — Residential mortgage-backed securities: U. S. government agencies: FNMA 3,005,920 3,008,531 24,213 (21,602 ) — FHLMC 1,412,376 1,412,472 7,785 (7,689 ) — GNMA 938,086 936,365 3,641 (5,362 ) — Other 25,000 25,009 52 (43 ) — Total U.S. government agencies 5,381,382 5,382,377 35,691 (34,696 ) — Private issue 86,656 103,383 16,727 — — Total residential mortgage-backed securities 5,468,038 5,485,760 52,418 (34,696 ) — Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,788,543 2,782,070 7,804 (14,277 ) — Other debt securities 4,400 4,152 — (248 ) — Perpetual preferred stock 12,562 16,568 4,006 — — Equity securities and mutual funds 17,572 18,728 1,219 (63 ) — Total available for sale securities $ 8,325,000 $ 8,341,041 $ 65,740 $ (49,699 ) $ — The amortized cost and fair values of available for sale securities at June 30, 2018 , by contractual maturity, are as shown in the following table (dollars in thousands): Less than One Year One to Five Years Six to Ten Years Over Ten Years Total Weighted Average Maturity 4 U.S. Treasuries: Amortized cost $ — $ 494 $ — $ — $ 494 1.59 Fair value — 490 — — 490 Nominal yield — % 1.99 % — % — % 1.99 % Municipal and other tax-exempt: Amortized cost $ 4,574 $ 2,303 $ — $ 3,713 $ 10,590 6.53 Fair value 4,580 2,401 — 3,716 10,697 Nominal yield¹ 3.45 % 6.27 % — % 3.98 % 5 4.25 % Commercial mortgage-backed securities: Amortized cost $ 8,070 $ 987,244 $ 1,548,520 $ 256,119 $ 2,799,953 6.89 Fair value 8,041 968,540 1,512,106 249,764 2,738,451 Nominal yield 1.67 % 1.96 % 2.17 % 2.20 % 2.10 % Other debt securities: Amortized cost $ — $ — $ — $ 25,500 $ 25,500 14.18 Fair value — — — 25,444 25,444 Nominal yield — % — % — % 1.59 % 5 1.59 % Total fixed maturity securities: Amortized cost $ 12,644 $ 990,041 $ 1,548,520 $ 285,332 $ 2,836,537 6.95 Fair value 12,621 971,431 1,512,106 278,924 2,775,082 Nominal yield 2.31 % 1.97 % 2.17 % 2.17 % 2.10 % Residential mortgage-backed securities: Amortized cost $ 5,506,931 2 Fair value 5,387,784 Nominal yield 3 2.16 % Total available-for-sale securities: Amortized cost $ 8,343,468 Fair value 8,162,866 Nominal yield 2.14 % 1 Calculated on a taxable equivalent basis using a 25 percent effective tax rate. 2 The average expected lives of mortgage-backed securities were 4.3 years years based upon current prepayment assumptions. 3 The nominal yield on mortgage-backed securities is based upon prepayment assumptions at the purchase date. Actual yields earned may differ significantly based upon actual prepayments. See Quarterly Financial Summary –– Unaudited following for current yields on available for sale securities portfolio. 4 Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without penalty. 5 Nominal yield on municipal and other tax-exempt securities and other debt securities with contractual maturity dates over ten years are based on variable rates which generally are reset within 35 . Sales of available for sale securities resulted in gains and losses as follows (in thousands): Three Months Ended Six Months Ended 2018 2017 2018 2017 Proceeds $ 142,743 $ 460,402 $ 187,533 $ 700,412 Gross realized gains 257 2,763 450 4,855 Gross realized losses (1,019 ) (2,383 ) (1,502 ) (2,426 ) Related federal and state income tax expense (benefit) (194 ) 148 (268 ) 945 |
Securities Pledged As Collateral [Table Text Block] | A summary of investment and available for sale securities that have been pledged as collateral for repurchase agreements, public trust funds on deposit and for other purposes, as required by law was as follows (in thousands): June 30, 2018 Dec. 31, 2017 June 30, 2017 Investment: Amortized cost $ 172,906 $ 226,852 $ 251,684 Fair value 174,240 229,429 255,097 Available for sale: Amortized cost 6,821,287 7,151,468 6,327,666 Fair value 6,653,875 7,089,346 6,317,623 |
Schedule of Unrealized Loss on Investments [Table Text Block] | Temporarily Impaired Securities as of June 30, 2018 (in thousands): Number of Securities Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Investment: Municipal and other tax-exempt 84 $ 98,325 $ 484 $ 5,007 $ 187 $ 103,332 $ 671 U.S. government agency residential mortgage-backed securities 3 6,979 110 2,809 127 9,788 237 Other debt securities 80 36,131 1,795 3,324 196 39,455 1,991 Total investment securities 167 $ 141,435 $ 2,389 $ 11,140 $ 510 $ 152,575 $ 2,899 Number of Securities Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available for sale: U.S. Treasury 1 $ 490 $ 4 $ — $ — $ 490 $ 4 Municipal and other tax-exempt 10 4,784 3 495 1 5,279 4 Residential mortgage-backed securities: U. S. government agencies: FNMA 174 2,049,432 44,860 710,962 38,614 2,760,394 83,474 FHLMC 93 1,116,337 26,663 339,515 15,678 1,455,852 42,341 GNMA 33 275,104 5,611 220,740 9,996 495,844 15,607 Total U.S. government agencies 300 3,440,873 77,134 1,271,217 64,288 4,712,090 141,422 Private issue 1 8 5,409 373 — — 5,409 373 Total residential mortgage-backed securities 308 3,446,282 77,507 1,271,217 64,288 4,717,499 141,795 Commercial mortgage-backed securities guaranteed by U.S. government agencies 211 1,675,839 42,732 554,819 20,585 2,230,658 63,317 Other debt securities 2 — — 20,434 68 20,434 68 Total available for sale securities 532 $ 5,127,395 $ 120,246 $ 1,846,965 $ 84,942 $ 6,974,360 $ 205,188 1 Includes securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income. Temporarily Impaired Securities as of December 31, 2017 (In thousands) Number of Securities Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Investment: Municipal and other tax-exempt 100 $ 145,960 $ 643 $ 5,833 $ 161 $ 151,793 $ 804 U.S. government agency residential mortgage-backed securities 1 — — 3,356 95 3,356 95 Other debt securities 49 20,091 1,238 3,076 129 23,167 1,367 Total investment securities 150 $ 166,051 $ 1,881 $ 12,265 $ 385 $ 178,316 $ 2,266 Number of Securities Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available for sale: U.S. Treasury — $ — $ — $ — $ — $ — $ — Municipal and other tax-exempt 19 12,765 18 4,802 265 17,567 283 Residential mortgage-backed securities: U. S. government agencies: FNMA 113 1,203,041 9,618 824,029 25,919 2,027,070 35,537 FHLMC 69 863,778 7,297 385,816 10,813 1,249,594 18,110 GNMA 27 201,887 1,452 248,742 7,201 450,629 8,653 Total U.S. government agencies 209 2,268,706 18,367 1,458,587 43,933 3,727,293 62,300 Private issue 1 8 5,898 391 — — 5,898 391 Total residential mortgage-backed securities 217 2,274,604 18,758 1,458,587 43,933 3,733,191 62,691 Commercial mortgage-backed securities guaranteed by U.S. government agencies 185 1,465,703 11,824 652,296 14,063 2,117,999 25,887 Other debt securities 2 19,959 41 472 28 20,431 69 Perpetual preferred stocks — — — — — — — Equity securities and mutual funds 111 911 7 2,203 79 3,114 86 Total available for sale securities 534 $ 3,773,942 $ 30,648 $ 2,118,360 $ 58,368 $ 5,892,302 $ 89,016 1 Includes securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income. Temporarily Impaired Securities as of June 30, 2017 (In thousands) Number of Securities Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Investment: Municipal and other tax-exempt 82 $ 111,078 $ 149 $ 3,000 $ 79 $ 114,078 $ 228 U.S. government agency residential mortgage-backed securities 1 3,810 61 — — 3,810 61 Other debt securities 22 8,384 554 — — 8,384 554 Total investment securities 105 $ 123,272 $ 764 $ 3,000 $ 79 $ 126,272 $ 843 Number of Securities Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available for sale: U.S. Treasury 1 $ 997 $ 2 $ — $ — $ 997 $ 2 Municipal and other tax-exempt 13 1,957 1 4,655 412 6,612 413 Residential mortgage-backed securities: U. S. government agencies: FNMA 75 1,381,687 20,288 87,371 1,314 1,469,058 21,602 FHLMC 42 731,853 7,213 16,388 476 748,241 7,689 GNMA 21 291,806 3,766 76,605 1,596 368,411 5,362 Other 1 19,957 43 — — 19,957 43 Total U.S. government agencies 139 2,425,303 31,310 180,364 3,386 2,605,667 34,696 Private issue 1 — — — — — — — Total residential mortgage-backed securities 139 2,425,303 31,310 180,364 3,386 2,605,667 34,696 Commercial mortgage-backed securities guaranteed by U.S. government agencies 121 1,388,406 12,690 78,828 1,587 1,467,234 14,277 Other debt securities 2 — — 4,152 248 4,152 248 Perpetual preferred stocks — — — — — — — Equity securities and mutual funds 91 1,668 22 887 41 2,555 63 Total available for sale securities 367 $ 3,818,331 $ 44,025 $ 268,886 $ 5,674 $ 4,087,217 $ 49,699 1 Includes securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income. |
Fair Value Option Securities [Table Text Block] | The fair value and net unrealized gain (loss) included in fair value option securities is as follows (in thousands): June 30, 2018 December 31, 2017 June 30, 2017 Fair Value Net Unrealized Gain (Loss) Fair Value Net Unrealized Gain (Loss) Fair Value Net Unrealized Gain (Loss) U.S. government agency residential mortgage-backed securities $ 482,227 $ (5,509 ) $ 755,054 $ (1,877 ) $ 445,169 $ 1,247 |
Schedule of Restricted Equity Securities [Table Text Block] | June 30, 2018 Dec. 31, 2017 June 30, 2017 Federal Reserve stock $ 41,178 $ 40,746 $ 36,676 Federal Home Loan Bank stock 306,543 279,200 274,113 Other — 243 244 Total $ 347,721 $ 320,189 $ 311,033 |
Derivatives (Tables)
Derivatives (Tables) | 6 Months Ended |
Jun. 30, 2018 | |
Derivative Instrument Detail [Abstract] | |
Derivative Contracts [Table Text Block] | The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and liabilities in the balance sheet at June 30, 2018 (in thousands): Assets Notional 1 Gross Fair Value Netting Adjustments Net Fair Value Before Cash Collateral Cash Collateral Fair Value Net of Cash Collateral Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 15,027,678 $ 52,681 $ (17,382 ) $ 35,299 $ — $ 35,299 Interest rate swaps 1,745,237 43,040 (2,193 ) 40,847 (11,737 ) 29,110 Energy contracts 1,465,826 200,640 (69,991 ) 130,649 — 130,649 Agricultural contracts 23,508 1,164 (181 ) 983 (741 ) 242 Foreign exchange contracts 174,851 170,556 — 170,556 (290 ) 170,266 Equity option contracts 93,943 4,121 — 4,121 (660 ) 3,461 Total customer risk management programs 18,531,043 472,202 (89,747 ) 382,455 (13,428 ) 369,027 Internal risk management programs 9,672,639 14,760 (10,413 ) 4,347 — 4,347 Total derivative contracts $ 28,203,682 $ 486,962 $ (100,160 ) $ 386,802 $ (13,428 ) $ 373,374 Liabilities Notional¹ Gross Fair Value Netting Adjustments Net Fair Value Before Cash Collateral Cash Collateral Fair Value Net of Cash Collateral Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 14,443,478 $ 49,343 $ (17,382 ) $ 31,961 $ (31,808 ) $ 153 Interest rate swaps 1,745,237 43,043 (2,193 ) 40,850 (4,946 ) 35,904 Energy contracts 1,434,980 199,119 (69,990 ) 129,129 (112,481 ) 16,648 Agricultural contracts 23,496 1,142 (181 ) 961 — 961 Foreign exchange contracts 161,567 157,174 (1 ) 157,173 (517 ) 156,656 Equity option contracts 93,943 4,121 — 4,121 — 4,121 Total customer risk management programs 17,902,701 453,942 (89,747 ) 364,195 (149,752 ) 214,443 Internal risk management programs 11,648,514 30,826 (10,413 ) 20,413 — 20,413 Total derivative contracts $ 29,551,215 $ 484,768 $ (100,160 ) $ 384,608 $ (149,752 ) $ 234,856 1 Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract. The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and liabilities in the balance sheet at December 31, 2017 (in thousands): Assets Notional 1 Gross Fair Value Netting Adjustments Net Fair Value Before Cash Collateral Cash Collateral Fair Value Net of Cash Collateral Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 12,347,542 $ 23,606 $ (18,096 ) $ 5,510 $ — $ 5,510 Interest rate swaps 1,478,944 28,278 — 28,278 (4,964 ) 23,314 Energy contracts 1,190,067 103,044 (47,873 ) 55,171 (196 ) 54,975 Agricultural contracts 53,238 1,576 (960 ) 616 — 616 Foreign exchange contracts 132,397 129,551 — 129,551 (448 ) 129,103 Equity option contracts 99,633 5,503 — 5,503 (920 ) 4,583 Total customer risk management programs 15,301,821 291,558 (66,929 ) 224,629 (6,528 ) 218,101 Internal risk management programs 4,736,701 9,494 (7,093 ) 2,401 — 2,401 Total derivative contracts $ 20,038,522 $ 301,052 $ (74,022 ) $ 227,030 $ (6,528 ) $ 220,502 Liabilities Notional 1 Gross Fair Value Netting Adjustments Net Fair Value Before Cash Collateral Cash Collateral Fair Value Net of Cash Collateral Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 11,537,742 $ 20,367 $ (18,096 ) $ 2,271 $ (704 ) $ 1,567 Interest rate swaps 1,478,944 28,298 — 28,298 (12,896 ) 15,402 Energy contracts 1,166,924 101,603 (47,873 ) 53,730 (42,767 ) 10,963 Agricultural contracts 48,552 1,551 (960 ) 591 — 591 Foreign exchange contracts 126,251 123,321 — 123,321 (53 ) 123,268 Equity option contracts 99,633 5,503 — 5,503 — 5,503 Total customer risk management programs 14,458,046 280,643 (66,929 ) 213,714 (56,420 ) 157,294 Internal risk management programs 5,728,421 21,762 (7,093 ) 14,669 — 14,669 Total derivative contracts $ 20,186,467 $ 302,405 $ (74,022 ) $ 228,383 $ (56,420 ) $ 171,963 1 Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract. The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and liabilities in the balance sheet at June 30, 2017 (in thousands): Assets Notional 1 Gross Fair Value Netting Adjustments Net Fair Value Before Cash Collateral Cash Collateral Fair Value Net of Cash Collateral Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 16,174,687 $ 57,948 $ (29,034 ) $ 28,914 $ — $ 28,914 Interest rate swaps 1,450,193 29,932 — 29,932 (2,206 ) 27,726 Energy contracts 891,480 56,824 (20,546 ) 36,278 (21,267 ) 15,011 Agricultural contracts 45,250 3,541 (1,027 ) 2,514 — 2,514 Foreign exchange contracts 169,529 162,429 — 162,429 (7 ) 162,422 Equity option contracts 100,159 4,437 — 4,437 (920 ) 3,517 Total customer risk management programs 18,831,298 315,111 (50,607 ) 264,504 (24,400 ) 240,104 Internal risk management programs 10,680,498 40,185 — 40,185 — 40,185 Total derivative contracts $ 29,511,796 $ 355,296 $ (50,607 ) $ 304,689 $ (24,400 ) $ 280,289 Liabilities Notional 1 Gross Fair Value Netting Adjustments Net Fair Value Before Cash Collateral Cash Collateral Fair Value Net of Cash Collateral Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 16,174,687 $ 53,829 $ (29,034 ) $ 24,795 $ — $ 24,795 Interest rate swaps 1,450,193 29,982 — 29,982 (15,396 ) 14,586 Energy contracts 874,625 53,895 (20,546 ) 33,349 — 33,349 Agricultural contracts 45,262 3,538 (1,027 ) 2,511 (2,511 ) — Foreign exchange contracts 169,553 162,276 — 162,276 (3,188 ) 159,088 Equity option contracts 100,159 4,437 — 4,437 — 4,437 Total customer risk management programs 18,814,479 307,957 (50,607 ) 257,350 (21,095 ) 236,255 Internal risk management programs 8,310,950 49,564 — 49,564 — 49,564 Total derivative contracts $ 27,125,429 $ 357,521 $ (50,607 ) $ 306,914 $ (21,095 ) $ 285,819 1 Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract. |
Derivative Instruments, Gain (Loss) in Statement of Earnings [Table Text Block] | The following summarizes the pre-tax net gains (losses) on derivative instruments and where they are recorded in the income statement (in thousands): Three Months Ended June 30, 2018 June 30, 2017 Brokerage and Trading Revenue Gain (Loss) on Derivatives, Net Brokerage and Trading Revenue Gain (Loss)on Derivatives, Net Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 7,586 $ — $ 9,205 $ — Interest rate swaps 683 — 665 — Energy contracts 1,416 — 1,666 — Agricultural contracts 15 — 11 — Foreign exchange contracts 96 — 90 — Equity option contracts — — — — Total customer risk management programs 9,796 — 11,637 — Internal risk management programs (981 ) (3,057 ) 6,485 3,241 Total derivative contracts $ 8,815 $ (3,057 ) $ 18,122 $ 3,241 Six Months Ended June 30, 2018 June 30, 2017 Brokerage and Trading Revenue Gain (Loss) on Derivatives, Net Brokerage and Trading Revenue Gain (Loss) on Derivatives, Net Customer risk management programs: Interest rate contracts To-be-announced residential mortgage-backed securities $ 14,405 $ — $ 17,232 $ — Interest rate swaps 1,439 — 1,124 — Energy contracts 4,556 — 4,539 — Agricultural contracts 30 — 20 — Foreign exchange contracts 272 — 360 — Equity option contracts — — — — Total customer risk management programs 20,702 — 23,275 — Internal risk management programs (2,864 ) (8,742 ) 6,018 2,791 Total derivative contracts $ 17,838 $ (8,742 ) $ 29,293 $ 2,791 |
Loans and Allowances for Cred25
Loans and Allowances for Credit Losses (Tables) | 6 Months Ended |
Jun. 30, 2018 | |
Loans Receivable, Net [Abstract] | |
Schedule of Loans by Portfolio Segment [Table Text Block] | Portfolio segments of the loan portfolio are as follows (in thousands): June 30, 2018 December 31, 2017 Fixed Rate Variable Rate Non-accrual Total Fixed Rate Variable Rate Non-accrual Total Commercial $ 2,206,735 $ 9,021,326 $ 120,978 $ 11,349,039 $ 2,217,432 $ 8,379,240 $ 137,303 $ 10,733,975 Commercial real estate 583,782 3,126,442 1,996 3,712,220 548,692 2,928,440 2,855 3,479,987 Residential mortgage 1,567,216 332,691 42,343 1,942,250 1,608,655 317,584 47,447 1,973,686 Personal 168,171 831,676 340 1,000,187 154,517 810,990 269 965,776 Total $ 4,525,904 $ 13,312,135 $ 165,657 $ 18,003,696 $ 4,529,296 $ 12,436,254 $ 187,874 $ 17,153,424 Accruing loans past due (90 days) 1 $ 879 $ 633 June 30, 2017 Fixed Rate Variable Rate Non-accrual Total Commercial $ 2,198,066 $ 8,242,732 $ 197,157 $ 10,637,955 Commercial real estate 594,542 3,090,275 3,775 3,688,592 Residential mortgage 1,597,587 297,376 44,235 1,939,198 Personal 150,728 766,900 272 917,900 Total $ 4,540,923 $ 12,397,283 $ 245,439 $ 17,183,645 Accruing loans past due (90 days) 1 $ 1,414 1 Excludes residential mortgage loans guaranteed by agencies of the U.S. government |
Rollforward of Allowance For Loan Losses And Accrual for Off-Balance Sheet Credit Losses [Table Text Block] | The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the three months ended June 30, 2018 is summarized as follows (in thousands): Commercial Commercial Real Estate Residential Mortgage Personal Nonspecific Allowance Total Allowance for loan losses: Beginning balance $ 120,083 $ 57,070 $ 18,431 $ 8,408 $ 19,975 $ 223,967 Provision for loan losses 7,116 (1,409 ) (257 ) 755 (4,503 ) 1,702 Loans charged off (13,775 ) — (135 ) (1,195 ) — (15,105 ) Recoveries 298 3,097 505 678 — 4,578 Ending balance $ 113,722 $ 58,758 $ 18,544 $ 8,646 $ 15,472 $ 215,142 Allowance for off-balance sheet credit losses: Beginning balance $ 4,027 $ 44 $ 62 $ 2 $ — $ 4,135 Provision for off-balance sheet credit losses (1,666 ) (27 ) (9 ) — — (1,702 ) Ending balance $ 2,361 $ 17 $ 53 $ 2 $ — $ 2,433 Total provision for credit losses $ 5,450 $ (1,436 ) $ (266 ) $ 755 $ (4,503 ) $ — The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the six months ended June 30, 2018 is summarized as follows (in thousands): Commercial Commercial Real Estate Residential Mortgage Personal Nonspecific Allowance Total Allowance for loan losses: Beginning balance $ 124,269 $ 56,621 $ 18,451 $ 9,124 $ 22,217 $ 230,682 Provision for loan losses 4,005 (1,143 ) (419 ) 603 (6,745 ) (3,699 ) Loans charged off (15,338 ) — (235 ) (2,422 ) — (17,995 ) Recoveries 786 3,280 747 1,341 — 6,154 Ending balance $ 113,722 $ 58,758 $ 18,544 $ 8,646 $ 15,472 $ 215,142 Allowance for off-balance sheet credit losses: Beginning balance $ 3,644 $ 45 $ 43 $ 2 $ — $ 3,734 Provision for off-balance sheet credit losses (1,283 ) (28 ) 10 — — (1,301 ) Ending balance $ 2,361 $ 17 $ 53 $ 2 $ — $ 2,433 Total provision for credit losses $ 2,722 $ (1,171 ) $ (409 ) $ 603 $ (6,745 ) $ (5,000 ) The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the three months ended June 30, 2017 is summarized as follows (in thousands): Commercial Commercial Real Estate Residential Mortgage Personal Nonspecific Allowance Total Allowance for loan losses: Beginning balance $ 137,616 $ 58,343 $ 18,177 $ 7,247 $ 27,327 $ 248,710 Provision for loan losses 1,546 105 (47 ) 1,358 47 3,009 Loans charged off (1,703 ) (76 ) (40 ) (1,053 ) — (2,872 ) Recoveries 283 208 169 554 — 1,214 Ending balance $ 137,742 $ 58,580 $ 18,259 $ 8,106 $ 27,374 $ 250,061 Allowance for off-balance sheet credit losses: Beginning balance $ 9,288 $ 106 $ 40 $ 6 $ — $ 9,440 Provision for off-balance sheet credit losses (2,987 ) (22 ) (2 ) 2 — (3,009 ) Ending balance $ 6,301 $ 84 $ 38 $ 8 $ — $ 6,431 Total provision for credit losses $ (1,441 ) $ 83 $ (49 ) $ 1,360 $ 47 $ — The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the six months ended June 30, 2017 is summarized as follows (in thousands): Commercial Commercial Real Estate Residential Mortgage Personal Nonspecific Allowance Total Allowance for loan losses: Beginning balance $ 140,213 $ 50,749 $ 18,224 $ 8,773 $ 28,200 $ 246,159 Provision for loan losses (1,809 ) 6,964 (86 ) 570 (826 ) 4,813 Loans charged off (2,127 ) (76 ) (276 ) (2,546 ) — (5,025 ) Recoveries 1,465 943 397 1,309 — 4,114 Ending balance $ 137,742 $ 58,580 $ 18,259 $ 8,106 $ 27,374 $ 250,061 Allowance for off-balance sheet credit losses: Beginning balance $ 11,063 $ 123 $ 50 $ 8 $ — $ 11,244 Provision for off-balance sheet credit losses (4,762 ) (39 ) (12 ) — — (4,813 ) Ending balance $ 6,301 $ 84 $ 38 $ 8 $ — $ 6,431 Total provision for credit losses $ (6,571 ) $ 6,925 $ (98 ) $ 570 $ (826 ) $ — The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at June 30, 2018 is as follows (in thousands): Collectively Measured for Impairment Individually Measured for Impairment Total Recorded Investment Related Allowance Recorded Investment Related Allowance Recorded Investment Related Allowance Commercial $ 11,228,061 $ 98,522 $ 120,978 $ 15,200 $ 11,349,039 $ 113,722 Commercial real estate 3,710,224 58,758 1,996 — 3,712,220 58,758 Residential mortgage 1,899,907 18,544 42,343 — 1,942,250 18,544 Personal 999,847 8,646 340 — 1,000,187 8,646 Total 17,838,039 184,470 165,657 15,200 18,003,696 199,670 Nonspecific allowance — — — — — 15,472 Total $ 17,838,039 $ 184,470 $ 165,657 $ 15,200 $ 18,003,696 $ 215,142 The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at December 31, 2017 is as follows (in thousands): Collectively Measured for Impairment Individually Measured for Impairment Total Recorded Investment Related Allowance Recorded Investment Related Allowance Recorded Investment Related Allowance Commercial $ 10,596,672 $ 115,438 $ 137,303 $ 8,831 $ 10,733,975 $ 124,269 Commercial real estate 3,477,132 56,621 2,855 — 3,479,987 56,621 Residential mortgage 1,926,239 18,451 47,447 — 1,973,686 18,451 Personal 965,507 9,124 269 — 965,776 9,124 Total 16,965,550 199,634 187,874 8,831 17,153,424 208,465 Nonspecific allowance — — — — — 22,217 Total $ 16,965,550 $ 199,634 $ 187,874 $ 8,831 $ 17,153,424 $ 230,682 The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at June 30, 2017 is as follows (in thousands): Collectively Measured for Impairment Individually Measured for Impairment Total Recorded Investment Related Allowance Recorded Investment Related Allowance Recorded Investment Related Allowance Commercial $ 10,440,798 $ 128,049 $ 197,157 $ 9,693 $ 10,637,955 $ 137,742 Commercial real estate 3,684,817 58,580 3,775 — 3,688,592 58,580 Residential mortgage 1,894,963 18,259 44,235 — 1,939,198 18,259 Personal 917,628 8,106 272 — 917,900 8,106 Total 16,938,206 212,994 245,439 9,693 17,183,645 222,687 Nonspecific allowance — — — — — 27,374 Total $ 16,938,206 $ 212,994 $ 245,439 $ 9,693 $ 17,183,645 $ 250,061 |
Schedule of Allowance for Loan Losses and Recorded Investment by Portfolio Segment for Risk Graded and Non-Risk Graded Loans [Table Text Block] | The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at June 30, 2018 is as follows (in thousands): Internally Risk Graded Non-Graded Total Recorded Investment Related Allowance Recorded Investment Related Allowance Recorded Investment Related Allowance Commercial $ 11,323,917 $ 112,842 $ 25,122 $ 880 $ 11,349,039 $ 113,722 Commercial real estate 3,712,220 58,758 — — 3,712,220 58,758 Residential mortgage 250,081 3,082 1,692,169 15,462 1,942,250 18,544 Personal 917,620 6,621 82,567 2,025 1,000,187 8,646 Total 16,203,838 181,303 1,799,858 18,367 18,003,696 199,670 Nonspecific allowance — — — — — 15,472 Total $ 16,203,838 $ 181,303 $ 1,799,858 $ 18,367 $ 18,003,696 $ 215,142 The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at December 31, 2017 is as follows (in thousands): Internally Risk Graded Non-Graded Total Recorded Investment Related Allowance Recorded Investment Related Allowance Recorded Investment Related Allowance Commercial $ 10,706,035 $ 123,383 $ 27,940 $ 886 $ 10,733,975 $ 124,269 Commercial real estate 3,479,987 56,621 — — 3,479,987 56,621 Residential mortgage 234,477 2,947 1,739,209 15,504 1,973,686 18,451 Personal 877,390 6,461 88,386 2,663 965,776 9,124 Total 15,297,889 189,412 1,855,535 19,053 17,153,424 208,465 Nonspecific allowance — — — — — 22,217 Total $ 15,297,889 $ 189,412 $ 1,855,535 $ 19,053 $ 17,153,424 $ 230,682 The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at June 30, 2017 is as follows (in thousands): Internally Risk Graded Non-Graded Total Recorded Investment Related Allowance Recorded Investment Related Allowance Recorded Investment Related Allowance Commercial $ 10,612,477 $ 136,819 $ 25,478 $ 923 $ 10,637,955 $ 137,742 Commercial real estate 3,688,592 58,580 — — 3,688,592 58,580 Residential mortgage 216,007 2,976 1,723,191 15,283 1,939,198 18,259 Personal 824,318 5,742 93,582 2,364 917,900 8,106 Total 15,341,394 204,117 1,842,251 18,570 17,183,645 222,687 Nonspecific allowance — — — — — 27,374 Total $ 15,341,394 $ 204,117 $ 1,842,251 $ 18,570 $ 17,183,645 $ 250,061 |
Schedule of Credit Quality Indicators [Table Text Block] | The following table summarizes the Company’s loan portfolio at June 30, 2018 by the risk grade categories (in thousands): Internally Risk Graded Non-Graded Performing Pass Other Loans Especially Mentioned Accruing Substandard Nonaccrual Performing Nonaccrual Total Commercial: Energy $ 2,936,184 $ 52,350 $ 93,088 $ 65,597 $ — $ — $ 3,147,219 Services 2,903,168 30,564 6,390 4,377 — — 2,944,499 Wholesale/retail 1,679,834 900 4,725 14,095 — — 1,699,554 Manufacturing 620,687 7,559 16,579 2,991 — — 647,816 Healthcare 2,319,035 2,030 16,532 16,125 — — 2,353,722 Other commercial and industrial 513,027 400 — 17,680 25,009 113 556,229 Total commercial 10,971,935 93,803 137,314 120,865 25,009 113 11,349,039 Commercial real estate: Residential construction and land development 116,821 1,828 — 350 — — 118,999 Retail 745,691 21,173 92 1,068 — — 768,024 Office 812,848 7,004 — 275 — — 820,127 Multifamily 1,056,953 — 31 — — — 1,056,984 Industrial 653,384 — — — — — 653,384 Other commercial real estate 294,399 — — 303 — — 294,702 Total commercial real estate 3,680,096 30,005 123 1,996 — — 3,712,220 Residential mortgage: Permanent mortgage 246,470 — 2,555 1,056 796,282 22,049 1,068,412 Permanent mortgages guaranteed by U.S. government agencies — — — — 162,086 7,567 169,653 Home equity — — — — 692,514 11,671 704,185 Total residential mortgage 246,470 — 2,555 1,056 1,650,882 41,287 1,942,250 Personal 917,459 48 34 79 82,306 261 1,000,187 Total $ 15,815,960 $ 123,856 $ 140,026 $ 123,996 $ 1,758,197 $ 41,661 $ 18,003,696 The following table summarizes the Company’s loan portfolio at December 31, 2017 by the risk grade categories (in thousands): Internally Risk Graded Non-Graded Performing Pass Other Loans Especially Mentioned Accruing Substandard Nonaccrual Performing Nonaccrual Total Commercial: Energy $ 2,632,986 $ 60,288 $ 144,598 $ 92,284 $ — $ — $ 2,930,156 Services 2,943,869 13,927 26,533 2,620 — — 2,986,949 Wholesale/retail 1,443,917 19,263 5,502 2,574 — — 1,471,256 Manufacturing 472,869 6,653 11,290 5,962 — — 496,774 Healthcare 2,253,497 3,186 43,305 14,765 — — 2,314,753 Other commercial and industrial 478,951 7 8,161 19,028 27,870 70 534,087 Total commercial 10,226,089 103,324 239,389 137,233 27,870 70 10,733,975 Commercial real estate: Residential construction and land development 113,190 1,828 395 1,832 — — 117,245 Retail 686,915 4,243 98 276 — — 691,532 Office 824,408 7,087 — 275 — — 831,770 Multifamily 979,969 — 48 — — — 980,017 Industrial 573,014 — — — — — 573,014 Other commercial real estate 285,506 145 286 472 — — 286,409 Total commercial real estate 3,463,002 13,303 827 2,855 — — 3,479,987 Residential mortgage: Permanent mortgage 232,492 — 822 1,163 784,928 24,030 1,043,435 Permanent mortgages guaranteed by U.S. government agencies — — — — 188,327 9,179 197,506 Home equity — — — — 719,670 13,075 732,745 Total residential mortgage 232,492 — 822 1,163 1,692,925 46,284 1,973,686 Personal 875,696 1,548 63 83 88,200 186 965,776 Total $ 14,797,279 $ 118,175 $ 241,101 $ 141,334 $ 1,808,995 $ 46,540 $ 17,153,424 The following table summarizes the Company’s loan portfolio at June 30, 2017 by the risk grade categories (in thousands): Internally Risk Graded Non-Graded Performing Pass Other Loans Especially Mentioned Accruing Substandard Nonaccrual Performing Nonaccrual Total Commercial: Energy $ 2,376,368 $ 120,473 $ 226,407 $ 123,992 $ — $ — $ 2,847,240 Services 2,921,510 12,452 17,111 7,754 — — 2,958,827 Wholesale/retail 1,507,063 16,224 9,788 10,620 — — 1,543,695 Manufacturing 513,442 6,540 16,499 9,656 — — 546,137 Healthcare 2,130,339 33,554 33,120 24,505 — — 2,221,518 Other commercial and industrial 453,712 2,961 17,861 20,526 25,374 104 520,538 Total commercial 9,902,434 192,204 320,786 197,053 25,374 104 10,637,955 Commercial real estate: Residential construction and land development 138,790 — 751 2,051 — — 141,592 Retail 720,730 1,774 — 301 — — 722,805 Office 859,722 2,855 — 396 — — 862,973 Multifamily 947,950 — 4,420 10 — — 952,380 Industrial 693,635 — — — — — 693,635 Other commercial real estate 314,187 — 3 1,017 — — 315,207 Total commercial real estate 3,675,014 4,629 5,174 3,775 — — 3,688,592 Residential mortgage: Permanent mortgage 212,563 1,693 478 1,273 750,891 22,142 989,040 Permanent mortgages guaranteed by U.S. government agencies — — — — 182,677 9,052 191,729 Home equity — — — — 746,661 11,768 758,429 Total residential mortgage 212,563 1,693 478 1,273 1,680,229 42,962 1,939,198 Personal 823,304 49 877 88 93,398 184 917,900 Total $ 14,613,315 $ 198,575 $ 327,315 $ 202,189 $ 1,799,001 $ 43,250 $ 17,183,645 |
Summary of Impaired Loans [Table Text Block] | Impaired Loans Loans are considered to be impaired when it is probable that the Company will not be able to collect all amounts due according to the contractual terms of the loan agreement. This generally includes all nonaccruing loans, all loans modified in a TDR and all loans repurchased from GNMA pools. A summary of impaired loans follows (in thousands): As of For the For the June 30, 2018 Three Months Ended Six Months Ended Recorded Investment June 30, 2018 June 30, 2018 Unpaid Principal Balance Total With No With Allowance Related Allowance Average Recorded Interest Income Recognized Average Recorded Interest Income Recognized Commercial: Energy $ 84,285 $ 65,597 $ 19,735 $ 45,862 $ 9,460 $ 77,770 $ — $ 78,940 $ — Services 7,211 4,377 4,296 81 79 3,243 — 3,498 — Wholesale/retail 14,523 14,095 2,822 11,273 4,075 8,329 — 8,334 — Manufacturing 2,995 2,991 2,734 257 257 2,996 — 4,476 — Healthcare 26,212 16,125 13,583 2,542 1,329 15,734 — 15,445 — Other commercial and industrial 26,983 17,793 17,793 — — 18,147 — 18,446 — Total commercial 162,209 120,978 60,963 60,015 15,200 126,219 — 129,139 — Commercial real estate: Residential construction and land development 1,764 350 350 — — 982 — 1,091 — Retail 8,134 1,068 1,068 — — 666 — 672 — Office 287 275 275 — — 275 — 275 — Multifamily — — — — — — — — — Industrial — — — — — — — — — Other commercial real estate 509 303 303 — — 311 — 387 — Total commercial real estate 10,694 1,996 1,996 — — 2,234 — 2,425 — Residential mortgage: Permanent mortgage 28,402 23,105 23,105 — — 23,841 322 24,149 628 Permanent mortgage guaranteed by U.S. government agencies 1 174,589 169,653 169,653 — — 170,856 1,574 180,671 3,422 Home equity 13,362 11,671 11,671 — — 12,002 — 12,373 — Total residential mortgage 216,353 204,429 204,429 — — 206,699 1,896 217,193 4,050 Personal 387 340 340 — — 340 — 305 — Total $ 389,643 $ 327,743 $ 267,728 $ 60,015 $ 15,200 $ 335,492 $ 1,896 $ 349,062 $ 4,050 1 All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At June 30, 2018 , $7.6 million of these loans were nonaccruing and $162 million were accruing based on the guarantee by U.S. government agencies. Generally, no interest income is recognized on impaired loans until all principal balances, including amounts charged-off, are recovered. A summary of impaired loans at December 31, 2017 follows (in thousands): Recorded Investment Unpaid Principal Balance Total With No Allowance With Allowance Related Allowance Commercial: Energy $ 111,011 $ 92,284 $ 40,968 $ 51,316 $ 8,814 Services 5,324 2,620 2,620 — — Wholesale/retail 9,099 2,574 2,574 — — Manufacturing 6,073 5,962 5,962 — — Healthcare 25,140 14,765 14,765 — — Other commercial and industrial 27,957 19,098 19,080 18 17 Total commercial 184,604 137,303 85,969 51,334 8,831 Commercial real estate: Residential construction and land development 3,285 1,832 1,832 — — Retail 509 276 276 — — Office 287 275 275 — — Multifamily — — — — — Industrial — — — — — Other commercial real estate 670 472 472 — — Total commercial real estate 4,751 2,855 2,855 — — Residential mortgage: Permanent mortgage 30,435 25,193 25,193 — — Permanent mortgage guaranteed by U.S. government agencies 1 203,814 197,506 197,506 — — Home equity 14,548 13,075 13,075 — — Total residential mortgage 248,797 235,774 235,774 — — Personal 307 269 269 — — Total $ 438,459 $ 376,201 $ 324,867 $ 51,334 $ 8,831 1 All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At December 31, 2017 , $9.2 million of these loans were nonaccruing and $188 million were accruing based on the guarantee by U.S. government agencies. A summary of impaired loans at June 30, 2017 follows (in thousands): For the For the As of June 30, 2017 Three Months Ended Six Months Ended Recorded Investment June 30, 2017 June 30, 2017 Unpaid Principal Balance Total With No Allowance With Allowance Related Allowance Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Commercial: Energy $ 141,091 $ 123,992 $ 56,988 $ 67,004 $ 8,874 $ 117,209 $ — $ 128,246 $ — Services 11,209 7,754 7,754 — — 7,734 — 7,964 — Wholesale/retail 17,392 10,620 10,620 — — 10,855 — 11,013 — Manufacturing 10,223 9,656 9,656 — — 7,781 — 7,293 — Healthcare 24,795 24,505 18,883 5,622 802 12,707 — 12,665 — Other commercial and industrial 28,933 20,630 20,609 21 17 20,706 — 20,874 — Total commercial 233,643 197,157 124,510 72,647 9,693 176,992 — 188,055 — Commercial real estate: Residential construction and land development 3,676 2,051 2,051 — — 2,334 — 2,742 — Retail 518 301 301 — — 308 — 314 — Office 499 396 396 — — 404 — 411 — Multifamily 1,000 10 10 — — 17 — 24 — Industrial — — — — — 38 — 38 — Other commercial real estate 1,212 1,017 1,017 — — 1,024 — 1,119 — Total commercial real estate 6,905 3,775 3,775 — — 4,125 — 4,648 — Residential mortgage: Permanent mortgage 28,603 23,415 23,415 — — 23,801 307 23,135 598 Permanent mortgage guaranteed by U.S. government agencies 1 197,659 191,729 191,729 — — 202,946 2,021 205,159 3,925 Home equity 13,064 11,768 11,768 — — 11,776 — 11,643 — Total residential mortgage 239,326 226,912 226,912 — — 238,523 2,328 239,937 4,523 Personal 307 272 272 — — 253 — 281 — Total $ 480,181 $ 428,116 $ 355,469 $ 72,647 $ 9,693 $ 419,893 $ 2,328 $ 432,921 $ 4,523 1 All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At June 30, 2017 , $9.1 million of these loans were nonaccruing and $183 million were accruing based on the guarantee by U.S. government agencies. |
Summary of Loans by Aging Status [Table Text Block] | Nonaccrual & Past Due Loans Past due status for all loan classes is based on the actual number of days since the last payment was due according to the contractual terms of the loans. A summary of loans currently performing, loans past due and accruing and nonaccrual loans as of June 30, 2018 is as follows (in thousands): Past Due Current 30 to 59 Days 60 to 89 Days 90 Days or More Nonaccrual Total Commercial: Energy $ 3,081,622 $ — $ — $ — $ 65,597 $ 3,147,219 Services 2,937,699 1,619 106 698 4,377 2,944,499 Wholesale/retail 1,685,175 284 — — 14,095 1,699,554 Manufacturing 644,825 — — — 2,991 647,816 Healthcare 2,322,580 — 15,017 — 16,125 2,353,722 Other commercial and industrial 538,269 52 105 10 17,793 556,229 Total commercial 11,210,170 1,955 15,228 708 120,978 11,349,039 Commercial real estate: Residential construction and land development 118,649 — — — 350 118,999 Retail 766,956 — — — 1,068 768,024 Office 819,852 — — — 275 820,127 Multifamily 1,056,984 — — — — 1,056,984 Industrial 653,384 — — — — 653,384 Other commercial real estate 294,377 — — 22 303 294,702 Total commercial real estate 3,710,202 — — 22 1,996 3,712,220 Residential mortgage: Permanent mortgage 1,041,859 2,568 796 84 23,105 1,068,412 Permanent mortgages guaranteed by U.S. government agencies 38,717 14,757 12,878 95,734 7,567 169,653 Home equity 690,743 1,612 94 65 11,671 704,185 Total residential mortgage 1,771,319 18,937 13,768 95,883 42,343 1,942,250 Personal 999,519 178 150 — 340 1,000,187 Total $ 17,691,210 $ 21,070 $ 29,146 $ 96,613 $ 165,657 $ 18,003,696 A summary of loans currently performing, loans past due and accruing and nonaccrual loans as of December 31, 2017 is as follows (in thousands): Past Due Current 30 to 59 Days 60 to 89 Days 90 Days or More Nonaccrual Total Commercial: Energy $ 2,833,668 $ — 4,204 $ — $ 92,284 $ 2,930,156 Services 2,983,222 514 486 107 2,620 2,986,949 Wholesale/retail 1,468,284 398 — — 2,574 1,471,256 Manufacturing 490,739 — 73 — 5,962 496,774 Healthcare 2,284,770 15,218 — — 14,765 2,314,753 Other commercial and industrial 514,701 85 78 125 19,098 534,087 Total commercial 10,575,384 16,215 4,841 232 137,303 10,733,975 Commercial real estate: Residential construction and land development 115,213 200 — — 1,832 117,245 Retail 691,256 — — — 276 691,532 Office 831,118 254 — 123 275 831,770 Multifamily 979,625 22 370 — — 980,017 Industrial 573,014 — — — — 573,014 Other commercial real estate 285,937 — — — 472 286,409 Total commercial real estate 3,476,163 476 370 123 2,855 3,479,987 Residential mortgage: Permanent mortgage 1,014,588 3,435 219 — 25,193 1,043,435 Permanent mortgages guaranteed by U.S. government agencies 22,692 18,978 13,468 133,189 9,179 197,506 Home equity 717,007 2,206 440 17 13,075 732,745 Total residential mortgage 1,754,287 24,619 14,127 133,206 47,447 1,973,686 Personal 964,374 681 191 261 269 965,776 Total $ 16,770,208 $ 41,991 19,529 $ 133,822 $ 187,874 $ 17,153,424 A summary of loans currently performing, loans past due and accruing and nonaccrual loans as of June 30, 2017 is as follows (in thousands): Past Due Current 30 to 59 Days 60 to 89 Days 90 Days or More Nonaccrual Total Commercial: Energy $ 2,723,248 $ — — $ — $ 123,992 $ 2,847,240 Services 2,949,562 50 180 1,281 7,754 2,958,827 Wholesale/retail 1,532,986 89 — — 10,620 1,543,695 Manufacturing 536,481 — — — 9,656 546,137 Healthcare 2,196,088 925 — — 24,505 2,221,518 Other commercial and industrial 499,743 45 119 1 20,630 520,538 Total commercial 10,438,108 1,109 299 1,282 197,157 10,637,955 Commercial real estate: Residential construction and land development 139,070 471 — — 2,051 141,592 Retail 722,504 — — — 301 722,805 Office 862,577 — — — 396 862,973 Multifamily 952,370 — — — 10 952,380 Industrial 693,635 — — — — 693,635 Other commercial real estate 314,187 3 — — 1,017 315,207 Total commercial real estate 3,684,343 474 — — 3,775 3,688,592 Residential mortgage: Permanent mortgage 962,443 2,024 1,026 132 23,415 989,040 Permanent mortgages guaranteed by U.S. government agencies 36,867 18,416 13,581 113,813 9,052 191,729 Home equity 744,735 1,564 362 — 11,768 758,429 Total residential mortgage 1,744,045 22,004 14,969 113,945 44,235 1,939,198 Personal 916,852 487 289 — 272 917,900 Total $ 16,783,348 $ 24,074 15,557 $ 115,227 $ 245,439 $ 17,183,645 |
Mortgage Banking Activities (Ta
Mortgage Banking Activities (Tables) | 6 Months Ended |
Jun. 30, 2018 | |
Mortgage Banking [Abstract] | |
Components of Residential Mortgage Loans Held For Sale [Table Text Block] | June 30, 2018 December 31, 2017 June 30, 2017 Unpaid Principal Balance/ Notional Fair Value Unpaid Principal Balance/ Notional Fair Value Unpaid Principal Balance/ Notional Fair Value Residential mortgage loans held for sale $ 214,717 $ 216,983 $ 212,525 $ 215,113 $ 269,772 $ 275,179 Residential mortgage loan commitments 251,231 7,473 222,919 6,523 362,088 10,993 Forward sales contracts 440,735 (1,155 ) 380,159 (258 ) 587,595 1,087 $ 223,301 $ 221,378 $ 287,259 |
Mortgage Banking Revenue [Table Text Block] | Mortgage banking revenue was as follows (in thousands): Three Months Ended Six Months Ended 2018 2017 2018 2017 Production revenue: Net realized gains on sale of mortgage loans $ 10,718 $ 11,787 $ 19,636 $ 20,402 Net change in unrealized gain on mortgage loans held for sale 1,047 985 (322 ) 4,827 Net change in the fair value of mortgage loan commitments (1,124 ) (3,274 ) 950 1,260 Net change in the fair value of forward sales contracts (726 ) 4,342 (897 ) (4,106 ) Total production revenue 9,915 13,840 19,367 22,383 Servicing revenue 16,431 16,436 33,004 33,084 Total mortgage banking revenue $ 26,346 $ 30,276 $ 52,371 $ 55,467 |
Summary of Mortgage Servicing Rights [Table Text Block] | The following represents a summary of mortgage servicing rights (Dollars in thousands): June 30, December 31, 2017 June 30, Number of residential mortgage loans serviced for others 134,868 136,528 138,335 Outstanding principal balance of residential mortgage loans serviced for others $ 21,963,309 $ 22,046,632 $ 22,095,232 Weighted average interest rate 3.96 % 3.94 % 3.95 % Remaining term (in months) 295 297 299 |
Activity in Capitalized Mortgage Servicing Rights [Table Text Block] | The following represents activity in capitalized mortgage servicing rights (in thousands): Three Months Ended Six Months Ended 2018 2017 2018 2017 Beginning Balance $ 274,978 $ 249,403 $ 252,867 $ 247,073 Additions, net 10,820 11,078 19,720 19,514 Change in fair value due to principal payments (8,802 ) (8,299 ) (16,797 ) (16,261 ) Change in fair value due to market assumption changes 1,723 (6,943 ) 22,929 (5,087 ) Ending Balance $ 278,719 $ 245,239 $ 278,719 $ 245,239 |
Assumptions to Value Mortgage Servicing Rights [Table Text Block] | Mortgage servicing rights are not traded in active markets. Fair value is determined by discounting the projected net cash flows. Significant market assumptions used to determine fair value based on significant unobservable inputs were as follows: June 30, December 31, 2017 June 30, Discount rate – risk-free rate plus a market premium 9.91% 9.84% 9.84% Prepayment rate - based upon loan interest rate, original term and loan type 8.12% - 15.08% 8.72% - 15.16% 8.61%-15.91% Loan servicing costs – annually per loan based upon loan type: Performing loans $65 - $88 $65 - $88 $65-$120 Delinquent loans $150 - $500 $150 - $500 $150-$500 Loans in foreclosure $1,000 - $4,000 $1,000 - $4,000 $1,000-$4,250 Escrow earnings rate – indexed to rates paid on deposit accounts with comparable average life 2.88% 2.24% 1.95% Primary/secondary mortgage rate spread 105 bps 105 bps 105 bps |
Aging Status of Mortgage Loans Serviced For Others [Table Text Block] | The aging status of our mortgage loans serviced for others by investor at June 30, 2018 follows (in thousands): Past Due Current 30 to 59 Days 60 to 89 Days 90 Days or More Total FHLMC $ 7,932,832 $ 68,996 $ 9,405 $ 25,129 $ 8,036,362 FNMA 6,491,492 77,424 9,118 20,918 6,598,952 GNMA 6,624,862 198,852 47,791 15,204 6,886,709 Other 433,830 4,989 221 2,246 441,286 Total $ 21,483,016 $ 350,261 $ 66,535 $ 63,497 $ 21,963,309 |
Commitments and Contingent Li27
Commitments and Contingent Liabilities Commitments and Contingent Liabilities - Variable Interest Entities (Tables) | 6 Months Ended |
Jun. 30, 2018 | |
Commitments and Contingencies Disclosure [Abstract] | |
Schedule of Variable Interest Entities [Table Text Block] | A summary of consolidated and unconsolidated alternative investments as of June 30, 2018 , December 31, 2017 and June 30, 2017 is as follows (in thousands): June 30, 2018 Loans Other assets Other liabilities Other borrowings Non-controlling interests Consolidated: Private equity funds $ — $ 14,150 $ — $ — $ 10,747 Tax credit entities 10,000 10,964 — 10,964 10,000 Other — 17,608 1,871 — 1,867 Total consolidated $ 10,000 $ 42,722 $ 1,871 $ 10,964 $ 22,614 Unconsolidated: Tax credit entities $ 62,188 $ 147,071 $ 49,472 $ — $ — Other — 45,070 19,786 — — Total unconsolidated $ 62,188 $ 192,141 $ 69,258 $ — $ — December 31, 2017 Loans Other assets Other liabilities Other borrowings Non-controlling interests Consolidated: Private equity funds $ — $ 14,783 $ — $ — $ 11,927 Tax credit entities 10,000 10,964 — 10,964 10,000 Other — 1,040 — — 1,040 Total consolidated $ 10,000 $ 26,787 $ — $ 10,964 $ 22,967 Unconsolidated: Tax credit entities $ 52,852 $ 153,506 $ 47,859 $ — $ — Other — 38,397 22,968 — — Total unconsolidated $ 52,852 $ 191,903 $ 70,827 $ — $ — June 30, 2017 Loans Other assets Other liabilities Other borrowings Non-controlling interests Consolidated: Private equity funds $ — $ 16,905 $ — $ — $ 14,199 Tax credit entities 10,000 11,274 — 10,964 10,000 Other — 15,894 1,621 878 2,877 Total consolidated $ 10,000 $ 44,073 $ 1,621 $ 11,842 $ 27,076 Unconsolidated: Tax credit entities $ 59,744 $ 148,525 $ 63,822 $ — $ — Other — 33,155 13,680 — — Total unconsolidated $ 59,744 $ 181,680 $ 77,502 $ — $ — |
Shareholders' Equity (Tables)
Shareholders' Equity (Tables) | 6 Months Ended |
Jun. 30, 2018 | |
Stockholders' Equity Note [Abstract] | |
Accumulated Other Comprehensive Income (Loss) [Table Text Block] | A rollforward of the components of accumulated other comprehensive income (loss) is included as follows (in thousands): Unrealized Gain (Loss) on Available for Sale Securities Employee Benefit Plans Total Balance, December 31, 2016 $ (9,087 ) $ (1,880 ) $ (10,967 ) Net change in unrealized gain (loss) 33,369 — 33,369 Reclassification adjustments included in earnings: Gain on available for sale securities, net (2,429 ) — (2,429 ) Other comprehensive income (loss), before income taxes 30,940 — 30,940 Federal and state income taxes 1 12,009 — 12,009 Other comprehensive income (loss), net of income taxes 18,931 — 18,931 Balance, June 30, 2017 $ 9,844 $ (1,880 ) $ 7,964 Balance, December 31, 2017 $ (35,385 ) $ (789 ) $ (36,174 ) Transition adjustment for net unrealized gains on equity securities (2,709 ) — (2,709 ) Net change in unrealized gain (loss) (130,523 ) — (130,523 ) Reclassification adjustments included in earnings: Loss on available for sale securities, net 1,052 — 1,052 Other comprehensive income (loss), before income taxes (129,471 ) — (129,471 ) Federal and state income taxes 2 (33,049 ) — (33,049 ) Other comprehensive income (loss), net of income taxes (96,422 ) — (96,422 ) Balance, June 30, 2018 $ (134,516 ) $ (789 ) $ (135,305 ) 1 Calculated using a 39 percent blended federal and state statutory tax rate. 2 Calculated using a 25 percent blended federal and state statutory tax rate. |
Earnings Per Share (Tables)
Earnings Per Share (Tables) | 6 Months Ended |
Jun. 30, 2018 | |
Earnings Per Share [Abstract] | |
Earnings Per Share [Table Text Block] | (In thousands, except share and per share amounts) Three Months Ended Six Months Ended 2018 2017 2018 2017 Numerator: Net income attributable to BOK Financial Corp. shareholders $ 114,372 $ 88,147 $ 219,934 $ 176,503 Less: Earnings allocated to participating securities 956 926 1,978 1,929 Numerator for basic earnings per share – income available to common shareholders 113,416 87,221 217,956 174,574 Effect of reallocating undistributed earnings of participating securities 1 1 1 1 Numerator for diluted earnings per share – income available to common shareholders $ 113,417 $ 87,222 $ 217,957 $ 174,575 Denominator: Weighted average shares outstanding 65,448,035 65,416,274 65,463,671 65,436,909 Less: Participating securities included in weighted average shares outstanding 546,060 686,522 589,104 714,165 Denominator for basic earnings per common share 64,901,975 64,729,752 64,874,567 64,722,744 Dilutive effect of employee stock compensation plans 1 35,251 63,382 37,985 65,578 Denominator for diluted earnings per common share 64,937,226 64,793,134 64,912,552 64,788,322 Basic earnings per share $ 1.75 $ 1.35 $ 3.36 $ 2.70 Diluted earnings per share $ 1.75 $ 1.35 $ 3.36 $ 2.69 1 Excludes employee stock options with exercise prices greater than current market price. — — — — |
Reportable Segments (Tables)
Reportable Segments (Tables) | 6 Months Ended |
Jun. 30, 2018 | |
Segment Reporting [Abstract] | |
Reportable Segments [Table Text Block] | Reportable segments reconciliation to the Consolidated Financial Statements for the three months ended June 30, 2018 is as follows (in thousands): Commercial Consumer Wealth Management Funds Management and Other BOK Financial Consolidated Net interest revenue from external sources $ 182,127 $ 21,746 $ 18,754 $ 15,935 $ 238,562 Net interest revenue (expense) from internal sources (37,102 ) 17,548 10,232 9,322 — Net interest revenue 145,025 39,294 28,986 25,257 238,562 Provision for credit losses 10,108 1,139 (105 ) (11,142 ) — Net interest revenue after provision for credit losses 134,917 38,155 29,091 36,399 238,562 Other operating revenue 43,047 46,320 70,642 (3,610 ) 156,399 Other operating expense 47,483 55,906 61,491 81,596 246,476 Net direct contribution 130,481 28,569 38,242 (48,807 ) 148,485 Gain (loss) on financial instruments, net 9 (6,411 ) — 6,402 — Change in fair value of mortgage servicing rights — 1,723 — (1,723 ) — Gain (loss) on repossessed assets, net (67 ) 174 — (107 ) — Corporate expense allocations 11,269 15,867 11,142 (38,278 ) — Net income before taxes 119,154 8,188 27,100 (5,957 ) 148,485 Federal and state income taxes 31,577 2,086 6,981 (7,314 ) 33,330 Net income 87,577 6,102 20,119 1,357 115,155 Net income attributable to non-controlling interests — — — 783 783 Net income attributable to BOK Financial Corp. shareholders $ 87,577 $ 6,102 $ 20,119 $ 574 $ 114,372 Average assets $ 18,072,155 $ 8,353,558 $ 8,495,557 $ (1,015,235 ) $ 33,906,035 Reportable segments reconciliation to the Consolidated Financial Statements for the six months ended June 30, 2018 is as follows (in thousands): Commercial Consumer Wealth Management Funds Management and Other BOK Financial Consolidated Net interest revenue from external sources $ 342,541 $ 43,499 $ 34,161 $ 38,097 $ 458,298 Net interest revenue (expense) from internal sources (65,445 ) 32,772 20,164 12,509 — Net interest revenue 277,096 76,271 54,325 50,606 458,298 Provision for credit losses 10,735 2,440 (153 ) (18,022 ) (5,000 ) Net interest revenue after provision for credit losses 266,361 73,831 54,478 68,628 463,298 Other operating revenue 82,722 91,269 145,409 (7,012 ) 312,388 Other operating expense 93,950 105,760 124,295 166,901 490,906 Net direct contribution 255,133 59,340 75,592 (105,285 ) 284,780 Gain on financial instruments, net 16 (29,672 ) — 29,656 — Change in fair value of mortgage servicing rights — 22,929 — (22,929 ) — Gain (loss) on repossessed assets, net (4,232 ) 66 — 4,166 — Corporate expense allocations 23,776 31,897 22,097 (77,770 ) — Net income before taxes 227,141 20,766 53,495 (16,622 ) 284,780 Federal and state income taxes 60,319 5,288 13,767 (15,096 ) 64,278 Net income 166,822 15,478 39,728 (1,526 ) 220,502 Net income attributable to non-controlling interests — — — 568 568 Net income attributable to BOK Financial Corp. shareholders $ 166,822 $ 15,478 $ 39,728 $ (2,094 ) $ 219,934 Average assets $ 17,933,756 $ 8,410,513 $ 8,296,780 $ (825,055 ) $ 33,815,994 Reportable segments reconciliation to the Consolidated Financial Statements for the three months ended June 30, 2017 is as follows (in thousands): Commercial Consumer Wealth Management Funds Management and Other BOK Financial Consolidated Net interest revenue from external sources $ 154,377 $ 20,756 $ 10,475 $ 19,596 $ 205,204 Net interest revenue (expense) from internal sources (21,715 ) 13,447 10,325 (2,057 ) — Net interest revenue 132,662 34,203 20,800 17,539 205,204 Provision for credit losses 1,228 926 (92 ) (2,062 ) — Net interest revenue after provision for credit losses 131,434 33,277 20,892 19,601 205,204 Other operating revenue 56,353 50,744 75,569 (414 ) 182,252 Other operating expense 59,511 55,125 60,616 75,633 250,885 Net direct contribution 128,276 28,896 35,845 (56,446 ) 136,571 Gain (loss) on financial instruments, net 3 5,224 — (5,227 ) — Change in fair value of mortgage servicing rights — (6,943 ) — 6,943 — Gain (loss) on repossessed assets, net 1,403 98 — (1,501 ) — Corporate expense allocations 8,955 16,912 9,947 (35,814 ) — Net income before taxes 120,727 10,363 25,898 (20,417 ) 136,571 Federal and state income taxes 49,382 4,031 10,209 (15,917 ) 47,705 Net income 71,345 6,332 15,689 (4,500 ) 88,866 Net income attributable to non-controlling interests — — — 719 719 Net income (loss) attributable to BOK Financial Corp. shareholders $ 71,345 $ 6,332 $ 15,689 $ (5,219 ) $ 88,147 Average assets $ 17,791,671 $ 8,441,831 $ 6,960,872 $ (825,803 ) $ 32,368,571 Reportable segments reconciliation to the Consolidated Financial Statements for the six months ended June 30, 2017 is as follows (in thousands): Commercial Consumer Wealth Management Funds Management and Other BOK Financial Consolidated Net interest revenue from external sources $ 301,753 $ 39,348 $ 21,960 $ 43,325 $ 406,386 Net interest revenue (expense) from internal sources (39,831 ) 25,864 19,181 (5,214 ) — Net interest revenue 261,922 65,212 41,141 38,111 406,386 Provision for credit losses (236 ) 2,199 (53 ) (1,910 ) — Net interest revenue after provision for credit losses 262,158 63,013 41,194 40,021 406,386 Other operating revenue 103,198 95,879 149,727 3,744 352,548 Other operating expense 112,416 107,991 121,025 154,164 495,596 Net direct contribution 252,940 50,901 69,896 (110,399 ) 263,338 Gain (loss) on financial instruments, net 41 3,557 — (3,598 ) — Change in fair value of mortgage servicing rights — (5,087 ) — 5,087 — Gain (loss) on repossessed assets, net 1,398 (39 ) — (1,359 ) — Corporate expense allocations 17,674 33,658 20,619 (71,951 ) — Net income before taxes 236,705 15,674 49,277 (38,318 ) 263,338 Federal and state income taxes 96,949 6,097 19,429 (36,667 ) 85,808 Net income 139,756 9,577 29,848 (1,651 ) 177,530 Net income attributable to non-controlling interests — — — 1,027 1,027 Net income attributable to BOK Financial Corp. shareholders $ 139,756 $ 9,577 $ 29,848 $ (2,678 ) $ 176,503 Average assets $ 17,716,738 $ 8,360,022 $ 6,960,872 $ (377,472 ) $ 32,660,160 |
Fees and Commissions Revenue 31
Fees and Commissions Revenue Fees and Commissions Rvenue (Tables) | 6 Months Ended |
Jun. 30, 2018 | |
Revenue from Contract with Customer [Abstract] | |
Disaggregation of Fees and Commissions Revenue [Table Text Block] | Fees and commissions revenue by reportable segment and primary service line is as follows for the three months ended June 30, 2018 . Commercial Consumer Wealth Management Funds Management & Other Consolidated Out of Scope 1 In Scope 2 Trading revenue $ — $ — $ 6,338 $ — $ 6,338 $ 6,338 $ — Customer hedging revenue 2,892 — 7,611 (708 ) 9,795 9,795 — Retail brokerage revenue — — 4,886 (75 ) 4,811 — 4,811 Investment banking revenue 2,903 — 2,641 — 5,544 2,300 3,244 Brokerage and trading revenue 5,795 — 21,476 (783 ) 26,488 18,433 8,055 TransFund EFT network revenue 18,048 1,009 (21 ) 2 19,038 — 19,038 Merchant services revenue 1,921 16 — — 1,937 — 1,937 Transaction card revenue 19,969 1,025 (21 ) 2 20,975 — 20,975 Personal trust revenue — — 20,558 — 20,558 — 20,558 Corporate trust revenue — — 4,935 — 4,935 — 4,935 Institutional trust & retirement plan services revenue — — 11,039 — 11,039 — 11,039 Investment management services and other — — 5,217 (50 ) 5,167 — 5,167 Fiduciary and asset management revenue — — 41,749 (50 ) 41,699 — 41,699 Commercial account service charge revenue 10,912 362 610 — 11,884 — 11,884 Overdraft fee revenue 98 8,768 32 7 8,905 — 8,905 Check card revenue — 5,343 — — 5,343 — 5,343 Automated service charge and other deposit fee revenue 38 1,633 24 — 1,695 — 1,695 Deposit service charges and fees 11,048 16,106 666 7 27,827 — 27,827 Mortgage production revenue — 9,915 — — 9,915 9,915 — Mortgage servicing revenue — 16,902 — (471 ) 16,431 16,431 — Mortgage banking revenue — 26,817 — (471 ) 26,346 26,346 — Other revenue 6,062 2,384 6,619 (547 ) 14,518 9,372 5,146 Total fees and commissions revenue $ 42,874 $ 46,332 $ 70,489 $ (1,842 ) $ 157,853 $ 54,151 $ 103,702 1 Out of scope revenue generally relates to financial instruments or contractual rights and obligations within the scope of other applicable accounting guidance. 2 In scope revenue represents revenue subject to FASB ASC Topic 606, Revenue from Contracts with Customers. Fees and commissions revenue by reportable segment and primary service line is as follows for the six months ended June 30, 2018 . Commercial Consumer Wealth Management Funds Management & Other Consolidated Out of Scope 1 In Scope 2 Trading revenue $ — $ — $ 16,732 $ — $ 16,732 $ 16,732 $ — Customer hedging revenue 4,914 — 14,576 1,212 20,702 20,702 — Retail brokerage revenue — — 9,738 (173 ) 9,565 — 9,565 Investment banking revenue 3,964 — 6,173 — 10,137 3,361 6,776 Brokerage and trading revenue 8,878 — 47,219 1,039 57,136 40,795 16,341 TransFund EFT network revenue 36,250 1,996 (40 ) 3 38,209 — 38,209 Merchant services revenue 3,725 31 — — 3,756 — 3,756 Transaction card revenue 39,975 2,027 (40 ) 3 41,965 — 41,965 Personal trust revenue — — 40,658 — 40,658 — 40,658 Corporate trust revenue — — 10,576 — 10,576 — 10,576 Institutional trust & retirement plan services revenue — — 22,489 — 22,489 — 22,489 Investment management services and other — — 9,906 (98 ) 9,808 — 9,808 Fiduciary and asset management revenue — — 83,629 (98 ) 83,531 — 83,531 Commercial account service charge revenue 21,856 721 1,215 — 23,792 — 23,792 Overdraft fee revenue 188 17,252 66 10 17,516 — 17,516 Check card revenue — 10,261 — — 10,261 — 10,261 Automated service charge and other deposit fee revenue 75 3,292 50 2 3,419 — 3,419 Deposit service charges and fees 22,119 31,526 1,331 12 54,988 — 54,988 Mortgage production revenue — 19,367 — — 19,367 19,367 — Mortgage servicing revenue — 33,929 — (925 ) 33,004 33,004 — Mortgage banking revenue — 53,296 — (925 ) 52,371 52,371 — Other revenue 11,919 4,447 13,157 (2,675 ) 26,848 17,727 9,121 Total fees and commissions revenue $ 82,891 $ 91,296 $ 145,296 $ (2,644 ) $ 316,839 $ 110,893 $ 205,946 1 Out of scope revenue generally relates to financial instruments or contractual rights and obligations within the scope of other applicable accounting guidance. 2 In scope revenue represents revenue subject to FASB ASC Topic 606, Revenue from Contracts with Customers. |
Fair Value Measurements (Tables
Fair Value Measurements (Tables) | 6 Months Ended |
Jun. 30, 2018 | |
Fair Value Disclosures [Abstract] | |
Fair Value Assets And Liabilities Measured On A Recurring Basis [Table Text Block] | The fair value of financial assets and liabilities measured on a recurring basis was as follows as of June 30, 2018 (in thousands): Total Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: Trading securities: U.S. government agency debentures $ 28,750 $ — $ 28,750 $ — U.S. government agency residential mortgage-backed securities 1,605,001 — 1,605,001 — Municipal and other tax-exempt securities 70,606 — 70,606 — Asset-backed securities 193,271 — 193,271 — Other trading securities 11,987 — 11,987 — Total trading securities 1,909,615 — 1,909,615 — Available for sale securities: U.S. Treasury 490 490 — — Municipal and other tax-exempt securities 10,697 — 8,667 2,030 U.S. government agency residential mortgage-backed securities 5,304,560 — 5,304,560 — Privately issued residential mortgage-backed securities 83,224 — 83,224 — Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,738,451 — 2,738,451 — Other debt securities 25,444 — 24,973 471 Total available for sale securities 8,162,866 490 8,159,875 2,501 Fair value option securities – U.S. government agency residential mortgage-backed securities 482,227 — 482,227 — Residential mortgage loans held for sale 223,301 — 209,058 14,243 Mortgage servicing rights 1 278,719 — — 278,719 Derivative contracts, net of cash collateral 2 373,373 21,056 352,317 — Liabilities: Derivative contracts, net of cash collateral 2 234,856 17,214 217,642 — 1 A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6 , Mortgage Banking Activities. 2 See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts in asset positions that were valued based on quoted prices in active markets for identical instruments (Level 1) are primarily exchange-traded interest rate and agricultural derivative contacts, net of cah margin. Derivative contacts in liability positions that were valued using quoted prices in active markets for identical instruments are exchange-traded energy and interest rate derivative contracts, net of cash margin. The fair value of financial assets and liabilities measured on a recurring basis was as follows as of December 31, 2017 (in thousands): Total Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Assets: Trading securities: U.S. government agency debentures $ 21,196 $ — $ 21,196 $ — U.S. government agency residential mortgage-backed securities 392,673 — 392,673 — Municipal and other tax-exempt securities 13,559 — 13,559 — Asset-backed securities 23,885 — 23,885 — Other trading securities 11,363 — 11,363 — Total trading securities 462,676 — 462,676 — Available for sale securities: U.S. Treasury 1,000 1,000 — — Municipal and other tax-exempt securities 27,080 — 22,278 4,802 U.S. government agency residential mortgage-backed securities 5,309,152 — 5,309,152 — Privately issued residential mortgage-backed securities 93,221 — 93,221 — Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,834,961 — 2,834,961 — Other debt securities 25,481 — 25,009 472 Perpetual preferred stock 15,767 — 15,767 — Equity securities and mutual funds 14,916 — 14,916 — Total available for sale securities 8,321,578 1,000 8,315,304 5,274 Fair value option securities – U.S. government agency residential mortgage-backed securities 755,054 — 755,054 — Residential mortgage loans held for sale 221,378 — 209,079 12,299 Mortgage servicing rights 1 252,867 — — 252,867 Derivative contracts, net of cash collateral 2 220,502 8,179 212,323 — Liabilities: Derivative contracts, net of cash collateral 2 171,963 — 171,963 — 1 A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6 , Mortgage Banking Activities. 2 See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded interest rate, energy and agricultural derivative contacts. Derivative contracts in liability positions that were valued using quoted prices in active markets for identical instruments (Level 1) are exchange-traded interest rate and energy derivative contracts, fully offset by cash margin. The fair value of financial assets and liabilities measured on a recurring basis was as follows as of June 30, 2017 (in thousands): Total Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Assets: Trading securities: U.S. government agency debentures $ 20,954 $ — $ 20,954 $ — U.S. government agency residential mortgage-backed securities 365,171 — 365,171 — Municipal and other tax-exempt securities 45,444 — 45,444 — Other trading securities 9,845 — 9,845 — Total trading securities 441,414 — 441,414 — Available for sale securities: U.S. Treasury 998 998 — — Municipal and other tax-exempt securities 32,765 — 28,110 4,655 U.S. government agency residential mortgage-backed securities 5,382,377 — 5,382,377 — Privately issued residential mortgage-backed securities 103,383 — 103,383 — Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,782,070 — 2,782,070 — Other debt securities 4,152 — — 4,152 Perpetual preferred stock 16,568 — 16,568 — Equity securities and mutual funds 18,728 3,516 15,212 — Total available for sale securities 8,341,041 4,514 8,327,720 8,807 Fair value option securities – U.S. government agency residential mortgage-backed securities 445,169 — 445,169 — Residential mortgage loans held for sale 287,259 — 274,524 12,735 Mortgage servicing rights 1 245,239 — — 245,239 Derivative contracts, net of cash collateral 2 280,289 46,366 233,923 — Liabilities: Derivative contracts, net of cash collateral 2 285,819 20,915 264,904 — 1 A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6 , Mortgage Banking Activities. 2 See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded energy and interest rate derivative contacts. Derivative contracts in liability positions that were valued using quoted prices in active markets for identical instruments (Level 1) are exchange-traded interest rate and agricultural derivative contracts, net cash margin. |
Fair Value Assets Measured On Recurring Basis, Significant Unobservable Inputs [Table Text Block] | The following represents the changes for the three and six months ended June 30, 2018 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands): Available for Sale Securities Municipal and other tax-exempt securities Other debt securities Residential mortgage loans held for sale Balance, March 31, 2018 $ 1,891 $ 472 $ 13,871 Transfer to Level 3 from Level 2 1 — — 687 Purchases — — — Proceeds from sales — — (488 ) Redemptions and distributions — — — Gain (loss) recognized in earnings: Mortgage banking revenue — — 173 Other comprehensive income: Net change in unrealized gain 139 (1 ) — Balance, June 30, 2018 $ 2,030 $ 471 $ 14,243 1 Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to meet conforming standards. Available for Sale Securities Municipal and other tax-exempt Other debt securities Residential mortgage loans held for sale Balance, December 31, 2017 $ 4,802 $ 472 $ 12,299 Transfer to Level 3 from Level 2 1 — — 2,843 Purchases — — — Proceeds from sales — — (812 ) Redemptions and distributions (3,045 ) — — Gain (loss) recognized in earnings: Mortgage banking revenue — — (87 ) Other comprehensive income (loss): Net change in unrealized gain (loss) 273 (1 ) — Balance, June 30, 2018 $ 2,030 $ 471 $ 14,243 1 Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to meet conforming standards. The following represents the changes for the three and six months ended June 30, 2017 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands): Available for Sale Securities Municipal and other tax-exempt securities Other debt securities Residential mortgage loans held for sale Balance, March 31, 2017 $ 5,722 $ 4,153 $ 12,679 Transfer to Level 3 from Level 2 1 — — 853 Purchases — — — Proceeds from sales — — (1,030 ) Redemptions and distributions (1,100 ) — — Gain (loss) recognized in earnings: Mortgage banking revenue — — 233 Other comprehensive income (loss): Net change in unrealized gain (loss) 33 (1 ) — Balance, June 30, 2017 $ 4,655 $ 4,152 $ 12,735 1 Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to meet conforming standards. Available for Sale Securities Municipal and other tax-exempt Other debt securities Residential mortgage loans held for sale Balance, December 31, 2016 $ 5,789 $ 4,152 $ 11,617 Transfer to Level 3 from Level 2 1 — — 2,740 Purchases — — — Proceeds from sales — — (1,702 ) Redemptions and distributions (1,100 ) — — Gain (loss) recognized in earnings Mortgage banking revenue — — 80 Other comprehensive income (loss): Net change in unrealized gain (loss) (34 ) — — Balance, June 30, 2017 $ 4,655 $ 4,152 $ 12,735 1 Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to meet conforming standards. |
Fair Value Inputs, Fair Value Measured On a Recurring Basis, Quantitative Information [Table Text Block] | A summary of quantitative information about assets measured at fair value on a recurring basis using Significant Unobservable Inputs (Level 3) as of June 30, 2018 follows (in thousands): Par Value Amortized Cost/Unpaid Principal Balance Fair Value Valuation Technique(s) Unobservable Input Range (Weighted Average) Available for sale securities Municipal and other tax-exempt securities $ 2,050 $ 2,033 $ 2,030 Discounted cash flows 1 Interest rate spread 6.69%-6.69% (6.69%) 2 99.00%-99.00% (99.00%) 3 Other debt securities 500 500 471 Discounted cash flows 1 Interest rate spread 6.32%-6.32% (6.32%) 4 94.36% - 94.36 (94.36%) 3 Residential mortgage loans held for sale N/A 15,025 14,252 Quoted prices of loans sold in securitization transactions, with a liquidity discount applied Liquidity discount applied to the market value of mortgage loans qualifying for sale to U.S. government agencies. 94.86% 1 Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume. 2 Interest rate yields used to value investment grade tax-exempt securities represent a spread of 413 basis points over average yields for comparable tax-exempt securities. 3 Represents fair value as a percentage of par value. 4 Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 3 percent . A summary of quantitative information about Recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of December 31, 2017 follows (in thousands): Par Value Amortized Fair Value Valuation Technique(s) Unobservable Input Range (Weighted Average) Available for sale securities Municipal and other tax-exempt securities $ 5,095 $ 5,068 $ 4,802 Discounted cash flows 1 Interest rate spread 6.60%-6.60% (6.60%) 2 92.25%-94.76% (93.75%) 3 Other debt securities 500 500 472 Discounted cash flows 1 Interest rate spread 6.85%-6.85% (6.85%) 4 94.39% - 94.39 (94.39%) 3 Residential mortgage loans held for sale N/A 12,981 12,299 Quoted prices of loans sold in securitization transactions, with a liquidity discount applied Liquidity discount applied to the market value of mortgage loans qualifying for sale to U.S. government agencies. 94.75% 1 Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume. 2 Interest rate yields used to value investment grade tax-exempt securities represent a spread of 372 to 466 basis points over average yields for comparable tax-exempt securities. 3 Represents fair value as a percentage of par value. 4 Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 3 percent . A summary of quantitative information about Recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of June 30, 2017 follows (in thousands): Par Value Amortized Cost Fair Value Valuation Technique(s) Unobservable Input Range (Weighted Average) Available for sale securities Municipal and other tax-exempt securities $ 5,095 $ 5,067 $ 4,655 Discounted cash flows 1 Interest rate spread 5.98%-5.98% (5.98%) 2 90.00%-94.90% (92.93%) 3 Other debt securities 4,400 4,400 4,152 Discounted cash flows 1 Interest rate spread 5.41%-6.72% (6.57%) 4 94.31% - 94.38 (94.37%) 3 Residential mortgage loans held for sale N/A 13,274 12,735 Quoted prices of loans sold in securitization transactions, with a liquidity discount applied Liquidity discount applied to the market value of a mortgage loans qualifying for sale to U.S. government agencies. 95.94% 1 Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume. 2 Interest rate yields used to value investment grade tax-exempt securities represent a spread of 360 to 446 basis points over average yields for comparable tax-exempt securities. 3 Represents fair value as a percentage of par value. 4 Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 3 percent . |
Fair Value Assets Measured on Nonrecurring Basis [Table Text Block] | The following represents the carrying value of assets measured at fair value on a non-recurring basis (and related losses) during the period. The carrying value represents only those assets with a balance at June 30, 2018 for which the fair value was adjusted during the six months ended June 30, 2018 : Fair Value Adjustments for the Carrying Value at June 30, 2018 Three Months Ended Six Months Ended Quoted Prices in Active Markets for Identical Instruments Significant Other Observable Inputs Significant Unobservable Inputs Gross charge-offs against allowance for loan losses Net losses and expenses of repossessed assets, net Gross charge-offs against allowance for loan losses Net losses and expenses of repossessed assets, net Impaired loans $ — $ 1,045 $ 11,763 $ 6,701 $ — $ 7,198 $ — Real estate and other repossessed assets — 1,996 6,838 — 118 — 5,242 The following represents the carrying value of assets measured at fair value on a non-recurring basis (and related losses) during the period. The carrying value represents only those assets with a balance at June 30, 2017 for which the fair value was adjusted during the six months ended June 30, 2017 : Fair Value Adjustments for the Carrying Value at June 30, 2017 Three Months Ended Six Months Ended Quoted Prices in Active Markets for Identical Instruments Significant Other Observable Inputs Significant Unobservable Inputs Gross charge-offs against allowance for loan losses Net losses and expenses of repossessed assets, net Gross charge-offs against allowance for loan losses Net losses and expenses of repossessed assets, net Impaired loans $ — $ 464 $ 3,570 $ 232 $ — $ 676 $ — Real estate and other repossessed assets — 3,488 530 — 772 — 906 |
Fair Value Inputs, Fair Value Measured On a Nonrecurring Basis, Quantitative Information [Table Text Block] | A summary of quantitative information about Non-recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of June 30, 2018 follows (in thousands): Fair Value Valuation Technique(s) Unobservable Input Range (Weighted Average) Impaired loans $ 11,763 Discounted cash flows Management knowledge of industry and non-real estate collateral including but not limited to recoverable oil and gas reserves, forward-looking commodity prices, estimated operating costs 43% - 84% (53%) 1 Real estate and other repossessed assets 6,838 Discounted cash flows Recoverable oil and gas reserves, forward-looking commodity prices, estimated operating costs N/A 1 Represents fair value as a percentage of the unpaid principal balance. A summary of quantitative information about Non-recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of June 30, 2017 follows (in thousands): Fair Value Valuation Technique(s) Unobservable Input Range (Weighted Average) Impaired loans $ 3,570 Discounted cash flows Recoverable oil and gas reserves, forward-looking commodity prices, estimated operating costs 75% - 90% (83%) 1 Real estate and other repossessed assets 530 Appraised value, as adjusted Marketability adjustments off appraised value2 65% - 88% (80%) 1 Represents fair value as a percentage of the unpaid principal balance. 2 Marketability adjustments include consideration of estimated costs to sell which is approximately 10% of the fair value. |
Fair Value of Financial Instruments [Table Text Block] | The following table presents the carrying values and estimated fair values of all financial instruments, including those financial assets and liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis as of June 30, 2018 (dollars in thousands): Carrying Value Estimated Fair Value Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Cash and due from banks $ 585,801 $ 585,801 $ 585,801 $ — $ — Interest-bearing cash and cash equivalents 872,999 872,999 872,999 — — Trading securities: U.S. government agency debentures 28,750 28,750 — 28,750 — U.S. government agency residential mortgage-backed securities 1,605,001 1,605,001 — 1,605,001 — Municipal and other tax-exempt securities 70,606 70,606 — 70,606 — Asset-backed securities 193,271 193,271 — 193,271 — Other trading securities 11,987 11,987 — 11,987 — Total trading securities 1,909,615 1,909,615 — 1,909,615 — Investment securities: Municipal and other tax-exempt securities 173,097 174,205 — 174,205 — U.S. government agency residential mortgage-backed securities 13,989 13,984 — 13,984 — Other debt securities 204,927 215,195 — 215,195 — Total investment securities 392,013 403,384 — 403,384 — Available for sale securities: U.S. Treasury 490 490 490 — — Municipal and other tax-exempt securities 10,697 10,697 — 8,667 2,030 U.S. government agency residential mortgage-backed securities 5,304,560 5,304,560 — 5,304,560 — Privately issued residential mortgage-backed securities 83,224 83,224 — 83,224 — Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,738,451 2,738,451 — 2,738,451 — Other debt securities 25,444 25,444 — 24,973 471 Total available for sale securities 8,162,866 8,162,866 490 8,159,875 2,501 Fair value option securities – U.S. government agency residential mortgage-backed securities 482,227 482,227 — 482,227 — Residential mortgage loans held for sale 223,301 223,301 — 209,058 14,243 Loans: Commercial 11,349,039 11,116,828 — — 11,116,828 Commercial real estate 3,712,220 3,639,121 — — 3,639,121 Residential mortgage 1,942,250 1,917,099 — — 1,917,099 Personal 1,000,187 990,419 — — 990,419 Total loans 18,003,696 17,663,467 — — 17,663,467 Allowance for loan losses (215,142 ) — — — — Loans, net of allowance 17,788,554 17,663,467 — — 17,663,467 Mortgage servicing rights 278,719 278,719 — — 278,719 Derivative instruments with positive fair value, net of cash collateral 373,373 373,373 21,056 352,317 — Deposits with no stated maturity 20,041,532 20,041,532 — — 20,041,532 Time deposits 2,127,732 2,078,486 — — 2,078,486 Other borrowed funds 6,809,472 6,571,762 — — 6,571,762 Subordinated debentures 144,697 148,112 — 148,112 — Derivative instruments with negative fair value, net of cash collateral 234,856 234,856 17,214 217,642 — The following table presents the carrying values and estimated fair values of all financial instruments, including those financial assets and liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis as of December 31, 2017 (dollars in thousands): Carrying Value Estimated Fair Value Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Cash and due from banks $ 602,510 $ 602,510 $ 602,510 $ — $ — Interest-bearing cash and cash equivalents 1,714,544 1,714,544 1,714,544 — — Trading securities: U.S. government agency debentures 21,196 21,196 — 21,196 — U.S. government agency residential mortgage-backed securities 392,673 392,673 — 392,673 — Municipal and other tax-exempt securities 13,559 13,559 — 13,559 — Asset-backed securities 23,885 23,885 — 23,885 — Other trading securities 11,363 11,363 — 11,363 — Total trading securities 462,676 462,676 — 462,676 — Investment securities: Municipal and other tax-exempt securities 228,186 230,349 — 230,349 — U.S. government agency residential mortgage-backed securities 15,891 16,242 — 16,242 — Other debt securities 217,716 233,444 — 233,444 — Total investment securities 461,793 480,035 — 480,035 — Available for sale securities: U.S. Treasury 1,000 1,000 1,000 — — Municipal and other tax-exempt securities 27,080 27,080 — 22,278 4,802 U.S. government agency residential mortgage-backed securities 5,309,152 5,309,152 — 5,309,152 — Privately issued residential mortgage-backed securities 93,221 93,221 — 93,221 — Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,834,961 2,834,961 — 2,834,961 — Other debt securities 25,481 25,481 — 25,009 472 Perpetual preferred stock 15,767 15,767 — 15,767 — Equity securities and mutual funds 14,916 14,916 — 14,916 — Total available for sale securities 8,321,578 8,321,578 1,000 8,315,304 5,274 Fair value option securities – U.S. government agency residential mortgage-backed securities 755,054 755,054 — 755,054 — Residential mortgage loans held for sale 221,378 221,378 — 209,079 12,299 Loans: Commercial 10,733,975 10,524,627 — — 10,524,627 Commercial real estate 3,479,987 3,428,733 — — 3,428,733 Residential mortgage 1,973,686 1,977,721 — — 1,977,721 Personal 965,776 956,706 — — 956,706 Total loans 17,153,424 16,887,787 — — 16,887,787 Allowance for loan losses (230,682 ) — — — — Loans, net of allowance 16,922,742 16,887,787 — — 16,887,787 Mortgage servicing rights 252,867 252,867 — — 252,867 Derivative instruments with positive fair value, net of cash collateral 220,502 220,502 8,179 212,323 — Deposits with no stated maturity 19,962,889 19,962,889 — — 19,962,889 Time deposits 2,098,416 2,064,558 — — 2,064,558 Other borrowed funds 5,709,861 5,703,121 — — 5,703,121 Subordinated debentures 144,677 148,207 — 148,207 — Derivative instruments with negative fair value, net of cash collateral 171,963 171,963 — 171,963 — The following table presents the carrying values and estimated fair values of all financial instruments, including those financial assets and liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis as of June 30, 2017 (dollars in thousands): Carrying Value Estimated Fair Value Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Cash and due from banks $ 561,587 $ 561,587 $ 561,587 $ — $ — Interest-bearing cash and cash equivalents 2,078,831 2,078,831 2,078,831 — — Trading securities: U.S. government agency debentures 20,954 20,954 — 20,954 — U.S. government agency residential mortgage-backed securities 365,171 365,171 — 365,171 — Municipal and other tax-exempt securities 45,444 45,444 — 45,444 — Other trading securities 9,845 9,845 — 9,845 — Total trading securities 441,414 441,414 — 441,414 — Investment securities: Municipal and other tax-exempt securities 267,375 270,531 — 270,531 — U.S. government agency residential mortgage-backed securities 18,035 18,642 — 18,642 — Other debt securities 205,016 226,502 — 226,502 — Total investment securities 490,426 515,675 — 515,675 — Available for sale securities: U.S. Treasury 998 998 998 — — Municipal and other tax-exempt securities 32,765 32,765 — 28,110 4,655 U.S. government agency residential mortgage-backed securities 5,382,377 5,382,377 — 5,382,377 — Privately issued residential mortgage-backed securities 103,383 103,383 — 103,383 — Commercial mortgage-backed securities guaranteed by U.S. government agencies 2,782,070 2,782,070 — 2,782,070 — Other debt securities 4,152 4,152 — — 4,152 Perpetual preferred stock 16,568 16,568 — 16,568 — Equity securities and mutual funds 18,728 18,728 3,516 15,212 — Total available for sale securities 8,341,041 8,341,041 4,514 8,327,720 8,807 Fair value option securities – U.S. government agency residential mortgage-backed securities 445,169 445,169 — 445,169 — Residential mortgage loans held for sale 287,259 287,259 — 274,524 12,735 Loans: Commercial 10,637,955 10,413,704 — — 10,413,704 Commercial real estate 3,688,592 3,636,365 — — 3,636,365 Residential mortgage 1,939,198 1,950,577 — — 1,950,577 Personal 917,900 909,055 — — 909,055 Total loans 17,183,645 16,909,701 — — 16,909,701 Allowance for loan losses (250,061 ) — — — — Loans, net of allowance 16,933,584 16,909,701 — — 16,909,701 Mortgage servicing rights 245,239 245,239 — — 245,239 Derivative instruments with positive fair value, net of cash collateral 280,289 280,289 46,366 233,923 — Deposits with no stated maturity 20,120,352 20,120,352 — — 20,120,352 Time deposits 2,196,122 2,164,115 — — 2,164,115 Other borrowed funds 5,696,666 5,664,273 — — 5,664,273 Subordinated debentures 144,658 147,204 — 147,204 — Derivative instruments with negative fair value, net of cash collateral 285,819 285,819 20,915 264,904 — |
Federal and State Income Taxe33
Federal and State Income Taxes Federal and State Income Taes (Tables) | 6 Months Ended |
Jun. 30, 2018 | |
Income Tax Disclosure [Abstract] | |
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] | The reconciliations of income attributable to continuing operations at the U.S. federal statutory tax rate to income tax expense are as follows (in thousands): Three Months Ended Six Months Ended 2018 2017 2018 2017 Amount: Federal statutory tax $ 31,182 $ 47,800 $ 59,804 $ 92,168 Tax exempt revenue (1,653 ) (3,224 ) (3,465 ) (6,335 ) Effect of state income taxes, net of federal benefit 3,288 2,944 6,945 5,389 Utilization of tax credits, net of proportional amortization of low-income housing limited partnership investments (1,334 ) (889 ) (2,667 ) (2,976 ) Share-based compensation (424 ) 1,636 (2,044 ) (2,301 ) Adjustment to provisional amounts related to tax reform — — 1,895 — Other, net 2,271 (562 ) 3,810 (137 ) Total income tax expense $ 33,330 $ 47,705 $ 64,278 $ 85,808 Three Months Ended Six Months Ended 2018 2017 2018 2017 Percent of pretax income: Federal statutory tax 21.0 % 35.0 % 21.0 % 35.0 % Tax exempt revenue (1.1 ) (2.4 ) (1.2 ) (2.4 ) Effect of state income taxes, net of federal benefit 2.2 2.2 2.4 2.0 Utilization of tax credits, net of proportional amortization of low-income housing limited partnership investments (0.9 ) (0.7 ) (0.9 ) (1.1 ) Share-based compensation (0.3 ) 1.2 (0.7 ) (0.9 ) Adjustment to provisional amounts related to tax reform — — 0.7 — Other, net 1.5 (0.4 ) 1.3 — Total 22.4 % 34.9 % 22.6 % 32.6 % |
Significant Accounting Polici34
Significant Accounting Policies Loans and Allowance for Credit Losses (Details) | 6 Months Ended |
Jun. 30, 2018 | |
Loans and Allowance for Credit Losses [Abstract] | |
Loans, Number of Days Past Due for a Non-Risk Graded Loan to be Placed on Nonaccruing Status | 90 days |
Loans, Number of Days After Notification of Chapter 7 Bankruptcy Non-Risk Graded Loan is Placed on Nonaccruing Status | 60 days |
Loans and Allowances for Credit Losses, Minimum No of Days After Which Past Due Non-Risk Graded Loans Are Charged Off | 60 days |
Loans and Allowances for Credit Losses, Maximum No of Days After Which Past Due Non-Risk Graded Loans Are Charged Off | 180 days |
Loans, Number of Days After Notification of Chapter 7 Bankruptcy Non-Risk Graded Loan is Charged Off | 60 days |
Significant Accounting Polici35
Significant Accounting Policies Newly Adopted and Pending Accounting Pronouncements (Details) $ in Millions | 6 Months Ended |
Jun. 30, 2018USD ($) | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Increase of reported right of use assets and liabilities, minimum | $ 100 |
Increase of reported right of use assets and liabilities maximum | $ 150 |
Trading Securities (Details)
Trading Securities (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017 | Jun. 30, 2017 |
Schedule of Trading Securities [Line Items] | |||
Trading Securities, Fair Value | $ 1,909,615 | $ 462,676 | $ 441,414 |
Trading Securities, Net Unrealized Gain (Loss) | 2,446 | (448) | (986) |
Trading Securities Pledged as Collateral | 889,000 | 0 | 0 |
U.S. government agency debentures | |||
Schedule of Trading Securities [Line Items] | |||
Trading Securities, Fair Value | 28,750 | 21,196 | 20,954 |
Trading Securities, Net Unrealized Gain (Loss) | 10 | 8 | (9) |
U.S. government agency residential mortgage-backed securities | |||
Schedule of Trading Securities [Line Items] | |||
Trading Securities, Fair Value | 1,605,001 | 392,673 | 365,171 |
Trading Securities, Net Unrealized Gain (Loss) | 1,923 | (517) | (1,032) |
Municipal and other tax-exempt securities | |||
Schedule of Trading Securities [Line Items] | |||
Trading Securities, Fair Value | 70,606 | 13,559 | 45,444 |
Trading Securities, Net Unrealized Gain (Loss) | 231 | 83 | 230 |
Asset-backed securities | |||
Schedule of Trading Securities [Line Items] | |||
Trading Securities, Fair Value | 193,271 | 23,885 | 0 |
Trading Securities, Net Unrealized Gain (Loss) | 250 | (26) | 0 |
Other trading securities | |||
Schedule of Trading Securities [Line Items] | |||
Trading Securities, Fair Value | 11,987 | 11,363 | 9,845 |
Trading Securities, Net Unrealized Gain (Loss) | $ 32 | $ 4 | $ (175) |
Investment (Held-to-Maturity) S
Investment (Held-to-Maturity) Securities (Details) $ in Thousands | 6 Months Ended | |||
Jun. 30, 2018USD ($) | Dec. 31, 2017USD ($) | Jun. 30, 2017USD ($) | ||
Schedule of Investment (Held-to-Maturity) Securities [Line Items] | ||||
Investments Securities, Amortized Cost | $ 392,013 | $ 461,793 | $ 490,426 | |
Investment Securities, fair value | 403,384 | 480,035 | 515,675 | |
Investment Securities, Gross Unrealized Gain | 14,270 | 20,508 | 26,092 | |
Investment Securities, Gross Unrealized Loss | (2,899) | (2,266) | (843) | |
Investment Securities, Debt Maturities, Net Carrying Value [Abstract] | ||||
Investments Securities, Debt Maturities, Amortized Cost | 392,013 | 461,793 | 490,426 | |
Investment Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | ||||
Investment Securities, Debt Maturities, Fair Value | $ 403,384 | 480,035 | 515,675 | |
Investment Securities, Debt Maturities, Nominal Yield [Abstract] | ||||
Investment Securities, Debt Maturities, Nominal Yield | 4.26% | |||
Investment Securities, Pledged as Collateral [Abstract] | ||||
Investment Securities, Pledged as Collateral, Amortized Cost | $ 172,906 | 226,852 | 251,684 | |
Investment Securities, Pledged as Collateral, Fair Value | $ 174,240 | $ 229,429 | $ 255,097 | |
Investment Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | ||||
Investment Securities, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 167 | 150 | 105 | |
Investment Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | ||||
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 141,435 | $ 166,051 | $ 123,272 | |
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 11,140 | 12,265 | 3,000 | |
Investment Securities, Continuous Unrealized Loss Position, Fair Value | 152,575 | 178,316 | 126,272 | |
Investment Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | ||||
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 2,389 | 1,881 | 764 | |
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 510 | 385 | 79 | |
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss | 2,899 | 2,266 | 843 | |
Fixed Maturity Securities [Member] | ||||
Investment Securities, Debt Maturities, Net Carrying Value [Abstract] | ||||
Investment Securities, Debt Maturities, Less than One Year, Net Carrying Value | 75,412 | |||
Investment Securities, Debt Maturities, One to Five Years, Net Carrying Value | 114,175 | |||
Investment Securities, Debt Maturities, Six to Ten Years, Net Carrying Value | 151,879 | |||
Investment Securities, Debt Maturities, Over Ten Years, Net Carrying Value | 36,558 | |||
Investment Securities, Debt Maturities, Single Maturity Date, Net Carrying Value | 378,024 | |||
Investment Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | ||||
Investment Securities, Debt Maturities, Less Than One Year, Fair Value | 75,510 | |||
Investment Securities, Debt Maturities, One to Five Years, Fair Value | 115,969 | |||
Investment Securities, Debt Maturities, Six to Ten Years, Fair Value | 161,950 | |||
Investment Securities, Debt Maturities, Over Ten Years, Fair Value | 35,971 | |||
Investment Securities, Debt Maturities, Single Maturity Date, Fair Value | $ 389,400 | |||
Investment Securities, Debt Maturities, Nominal Yield [Abstract] | ||||
Investment Securities, Debt Maturities, Less Than One Year, Nominal Yield | 2.45% | |||
Investment Securities, Debt Maturities, One to Five Years, Nominal Yield | 3.54% | |||
Investment Securities, Debt Maturities, Six to Ten Years, Nominal Yield | 5.69% | |||
Investment Securities, Debt Maturities, Over Ten Years, Nominal Yield | 4.82% | |||
Investment Securities, Debt Maturities, Nominal Yield | 4.31% | |||
Investment Securities, Debt Maturities, Weighted Average Maturity | [1] | 5.08 | ||
Municipal and other tax-exempt securities | ||||
Schedule of Investment (Held-to-Maturity) Securities [Line Items] | ||||
Investments Securities, Amortized Cost | $ 173,097 | 228,186 | 267,375 | |
Investment Securities, fair value | 174,205 | 230,349 | 270,531 | |
Investment Securities, Gross Unrealized Gain | 1,779 | 2,967 | 3,384 | |
Investment Securities, Gross Unrealized Loss | (671) | (804) | (228) | |
Investment Securities, Debt Maturities, Net Carrying Value [Abstract] | ||||
Investment Securities, Debt Maturities, Less than One Year, Net Carrying Value | 60,535 | |||
Investment Securities, Debt Maturities, One to Five Years, Net Carrying Value | 62,005 | |||
Investment Securities, Debt Maturities, Six to Ten Years, Net Carrying Value | 28,117 | |||
Investment Securities, Debt Maturities, Over Ten Years, Net Carrying Value | 22,440 | |||
Investment Securities, Debt Maturities, Single Maturity Date, Net Carrying Value | 173,097 | |||
Investments Securities, Debt Maturities, Amortized Cost | 173,097 | 228,186 | 267,375 | |
Investment Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | ||||
Investment Securities, Debt Maturities, Less Than One Year, Fair Value | 60,487 | |||
Investment Securities, Debt Maturities, One to Five Years, Fair Value | 61,736 | |||
Investment Securities, Debt Maturities, Six to Ten Years, Fair Value | 29,038 | |||
Investment Securities, Debt Maturities, Over Ten Years, Fair Value | 22,944 | |||
Investment Securities, Debt Maturities, Single Maturity Date, Fair Value | 174,205 | |||
Investment Securities, Debt Maturities, Fair Value | $ 174,205 | $ 230,349 | $ 270,531 | |
Investment Securities, Debt Maturities, Nominal Yield [Abstract] | ||||
Investment Securities, Debt Maturities, Less Than One Year, Nominal Yield | [2] | 2.07% | ||
Investment Securities, Debt Maturities, One to Five Years, Nominal Yield | [2] | 2.58% | ||
Investment Securities, Debt Maturities, Six to Ten Years, Nominal Yield | [2] | 5.81% | ||
Investment Securities, Debt Maturities, Over Ten Years, Nominal Yield | [2] | 5.12% | ||
Investment Securities, Debt Maturities, Nominal Yield | [2] | 3.25% | ||
Investment Securities, Debt Maturities, Weighted Average Maturity | [1] | 4.02 | ||
Investment Securities,Debt Maturities, Effective tax rate for nominal yield calculation | 25.00% | |||
Investment Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | ||||
Investment Securities, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 84 | 100 | 82 | |
Investment Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | ||||
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 98,325 | $ 145,960 | $ 111,078 | |
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 5,007 | 5,833 | 3,000 | |
Investment Securities, Continuous Unrealized Loss Position, Fair Value | 103,332 | 151,793 | 114,078 | |
Investment Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | ||||
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 484 | 643 | 149 | |
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 187 | 161 | 79 | |
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss | 671 | 804 | 228 | |
Other debt securities | ||||
Schedule of Investment (Held-to-Maturity) Securities [Line Items] | ||||
Investments Securities, Amortized Cost | 204,927 | 217,716 | 205,016 | |
Investment Securities, fair value | 215,195 | 233,444 | 226,502 | |
Investment Securities, Gross Unrealized Gain | 12,259 | 17,095 | 22,040 | |
Investment Securities, Gross Unrealized Loss | (1,991) | (1,367) | (554) | |
Investment Securities, Debt Maturities, Net Carrying Value [Abstract] | ||||
Investment Securities, Debt Maturities, Less than One Year, Net Carrying Value | 14,877 | |||
Investment Securities, Debt Maturities, One to Five Years, Net Carrying Value | 52,170 | |||
Investment Securities, Debt Maturities, Six to Ten Years, Net Carrying Value | 123,762 | |||
Investment Securities, Debt Maturities, Over Ten Years, Net Carrying Value | 14,118 | |||
Investment Securities, Debt Maturities, Single Maturity Date, Net Carrying Value | 204,927 | |||
Investments Securities, Debt Maturities, Amortized Cost | 204,927 | 217,716 | 205,016 | |
Investment Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | ||||
Investment Securities, Debt Maturities, Less Than One Year, Fair Value | 15,023 | |||
Investment Securities, Debt Maturities, One to Five Years, Fair Value | 54,233 | |||
Investment Securities, Debt Maturities, Six to Ten Years, Fair Value | 132,912 | |||
Investment Securities, Debt Maturities, Over Ten Years, Fair Value | 13,027 | |||
Investment Securities, Debt Maturities, Single Maturity Date, Fair Value | 215,195 | |||
Investment Securities, Debt Maturities, Fair Value | $ 215,195 | $ 233,444 | $ 226,502 | |
Investment Securities, Debt Maturities, Nominal Yield [Abstract] | ||||
Investment Securities, Debt Maturities, Less Than One Year, Nominal Yield | 3.99% | |||
Investment Securities, Debt Maturities, One to Five Years, Nominal Yield | 4.69% | |||
Investment Securities, Debt Maturities, Six to Ten Years, Nominal Yield | 5.67% | |||
Investment Securities, Debt Maturities, Over Ten Years, Nominal Yield | 4.34% | |||
Investment Securities, Debt Maturities, Nominal Yield | 5.21% | |||
Investment Securities, Debt Maturities, Weighted Average Maturity | [1] | 5.99 | ||
Investment Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | ||||
Investment Securities, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 80 | 49 | 22 | |
Investment Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | ||||
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 36,131 | $ 20,091 | $ 8,384 | |
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 3,324 | 3,076 | 0 | |
Investment Securities, Continuous Unrealized Loss Position, Fair Value | 39,455 | 23,167 | 8,384 | |
Investment Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | ||||
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 1,795 | 1,238 | 554 | |
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 196 | 129 | 0 | |
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss | 1,991 | 1,367 | 554 | |
U.S. government agency residential mortgage-backed securities | ||||
Schedule of Investment (Held-to-Maturity) Securities [Line Items] | ||||
Investments Securities, Amortized Cost | 13,989 | 15,891 | 18,035 | |
Investment Securities, fair value | 13,984 | 16,242 | 18,642 | |
Investment Securities, Gross Unrealized Gain | 232 | 446 | 668 | |
Investment Securities, Gross Unrealized Loss | (237) | (95) | (61) | |
Investment Securities, Debt Maturities, Net Carrying Value [Abstract] | ||||
Investment Securities, Debt Maturities, without Single Maturity Date, Net Carrying Value | 13,989 | |||
Investments Securities, Debt Maturities, Amortized Cost | 13,989 | 15,891 | 18,035 | |
Investment Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | ||||
Investment Securities, Debt Maturities, without Single Maturity Date, Fair Value | 13,984 | |||
Investment Securities, Debt Maturities, Fair Value | $ 13,984 | $ 16,242 | $ 18,642 | |
Investment Securities, Debt Maturities, Nominal Yield [Abstract] | ||||
Investment Securities, Debt Maturities, Nominal Yield | [3] | 2.76% | ||
Investment Securities, Debt Maturities, Average Expected Life of Mortgage-backed Securities | 5 years | |||
Investment Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | ||||
Investment Securities, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 3 | 1 | 1 | |
Investment Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | ||||
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 6,979 | $ 0 | $ 3,810 | |
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 2,809 | 3,356 | 0 | |
Investment Securities, Continuous Unrealized Loss Position, Fair Value | 9,788 | 3,356 | 3,810 | |
Investment Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | ||||
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 110 | 0 | 61 | |
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 127 | 95 | 0 | |
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss | $ 237 | $ 95 | $ 61 | |
[1] | Expected maturities may differ from contractual maturities, because borrowers may have the right to call or prepay obligations with or without penalty. | |||
[2] | Calculated on a taxable equivalent basis using a 25 percent effective tax rate. | |||
[3] | The nominal yield on residential mortgage-backed securities is based upon prepayment assumptions at the purchase date. Actual yields earned may differ significantly based upon actual prepayments. See Quarterly Financial Summary - Unaudited for current yields on the investment securities portfolio. |
Available for Sale Securities (
Available for Sale Securities (Details) $ in Thousands | 3 Months Ended | 6 Months Ended | |||||||||
Jun. 30, 2018USD ($) | Jun. 30, 2017USD ($) | Jun. 30, 2018USD ($) | Jun. 30, 2017USD ($) | Dec. 31, 2017USD ($) | |||||||
Schedule of Available-for-sale Securities [Line Items] | |||||||||||
Available-for-sale Securities, Amortized Cost | $ 8,343,468 | $ 8,325,000 | $ 8,343,468 | $ 8,325,000 | $ 8,369,075 | ||||||
Available-for-sale Securities, Fair Value | 8,162,866 | 8,341,041 | 8,162,866 | 8,341,041 | 8,321,578 | ||||||
Available-for-sale Securities, Gross Unrealized Gain | 24,586 | 65,740 | 24,586 | 65,740 | 41,519 | ||||||
Available-for-sale Securities, Gross Unrealized Loss | (204,815) | (49,699) | (204,815) | (49,699) | (88,625) | ||||||
Available-for-Sale Securities, Other Than Temporary Impairments | (373) | 0 | (373) | 0 | (391) | ||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost | 8,343,468 | 8,325,000 | 8,343,468 | 8,325,000 | 8,369,075 | ||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Fair Value | $ 8,162,866 | 8,341,041 | $ 8,162,866 | 8,341,041 | 8,321,578 | ||||||
Available-for-sale Securities, Debt Maturities, Nominal Yield [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Nominal Yield | 2.14% | 2.14% | |||||||||
Available-for-sale Securities, Gross Realized Gain (Loss), Disclosures [Abstract] | |||||||||||
Available-for-sale Securities, Proceeds | $ 142,743 | 460,402 | $ 187,533 | 700,412 | |||||||
Available-for-sale Securities, Gross realized gains | 257 | 2,763 | 450 | 4,855 | |||||||
Available-for-sale Securities, Gross realized losses | (1,019) | (2,383) | (1,502) | (2,426) | |||||||
Available-for-sale Securities, Related federal and state income tax expense | (194) | 148 | (268) | 945 | |||||||
Available-for-sale Securities, Pledged as Collateral [Abstract] | |||||||||||
Available-for-sale Securities, Pledged As Collateral, Amortized cost | 6,821,287 | 6,327,666 | 6,821,287 | 6,327,666 | 7,151,468 | ||||||
Available-for-sale Securities, Pledged As Collateral, Fair value | $ 6,653,875 | $ 6,317,623 | $ 6,653,875 | $ 6,317,623 | $ 7,089,346 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | |||||||||||
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 532 | 367 | 532 | 367 | 534 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 5,127,395 | $ 3,818,331 | $ 5,127,395 | $ 3,818,331 | $ 3,773,942 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 1,846,965 | 268,886 | 1,846,965 | 268,886 | 2,118,360 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 6,974,360 | 4,087,217 | 6,974,360 | 4,087,217 | 5,892,302 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 120,246 | 44,025 | 120,246 | 44,025 | 30,648 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 84,942 | 5,674 | 84,942 | 5,674 | 58,368 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 205,188 | 49,699 | 205,188 | 49,699 | 89,016 | ||||||
Fixed Maturity Securities [Member] | |||||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Amortized Cost Basis | 12,644 | 12,644 | |||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Amortized Cost Basis | 990,041 | 990,041 | |||||||||
Available-for-sale Securities, Debt Maturities, Six To Ten Years, Amortized Cost Basis | 1,548,520 | 1,548,520 | |||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Amortized Cost Basis | 285,332 | 285,332 | |||||||||
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis | 2,836,537 | 2,836,537 | |||||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Fair Value | 12,621 | 12,621 | |||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Fair Value | 971,431 | 971,431 | |||||||||
Available-for-sale Securities, Debt Maturities, Six to Ten Years, Fair Value | 1,512,106 | 1,512,106 | |||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Fair Value | 278,924 | 278,924 | |||||||||
Available-for-sale Securities, Debt Maturities, Single Maturity Date | $ 2,775,082 | $ 2,775,082 | |||||||||
Available-for-sale Securities, Debt Maturities, Nominal Yield [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Nominal Yield | 2.31% | 2.31% | |||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Nominal Yield | 1.97% | 1.97% | |||||||||
Available-for-sale Securities, Debt Maturities, Six To Ten Years, Nominal Yield | 2.17% | 2.17% | |||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Nominal Yield | 2.17% | 2.17% | |||||||||
Available-for-sale Securities, Debt Maturities, Nominal Yield | 2.10% | 2.10% | |||||||||
Available-for-sale Securities, Debt Maturities, Weighted Average Maturity | [1] | 6.95 | 6.95 | ||||||||
U.S. Treasury | |||||||||||
Schedule of Available-for-sale Securities [Line Items] | |||||||||||
Available-for-sale Securities, Amortized Cost | $ 494 | 1,000 | $ 494 | 1,000 | 1,000 | ||||||
Available-for-sale Securities, Fair Value | 490 | 998 | 490 | 998 | 1,000 | ||||||
Available-for-sale Securities, Gross Unrealized Gain | 0 | 0 | 0 | 0 | 0 | ||||||
Available-for-sale Securities, Gross Unrealized Loss | (4) | (2) | (4) | (2) | 0 | ||||||
Available-for-Sale Securities, Other Than Temporary Impairments | 0 | 0 | 0 | 0 | 0 | ||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Amortized Cost Basis | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Amortized Cost Basis | 494 | 494 | |||||||||
Available-for-sale Securities, Debt Maturities, Six To Ten Years, Amortized Cost Basis | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Amortized Cost Basis | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis | 494 | 494 | |||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost | 494 | 1,000 | 494 | 1,000 | 1,000 | ||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Fair Value | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Fair Value | 490 | 490 | |||||||||
Available-for-sale Securities, Debt Maturities, Six to Ten Years, Fair Value | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Fair Value | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, Single Maturity Date | 490 | 490 | |||||||||
Available-for-sale Securities, Debt Maturities, Fair Value | $ 490 | $ 998 | $ 490 | $ 998 | $ 1,000 | ||||||
Available-for-sale Securities, Debt Maturities, Nominal Yield [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Nominal Yield | 0.00% | 0.00% | |||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Nominal Yield | 1.99% | 1.99% | |||||||||
Available-for-sale Securities, Debt Maturities, Six To Ten Years, Nominal Yield | 0.00% | 0.00% | |||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Nominal Yield | 0.00% | 0.00% | |||||||||
Available-for-sale Securities, Debt Maturities, Nominal Yield | 1.99% | 1.99% | |||||||||
Available-for-sale Securities, Debt Maturities, Weighted Average Maturity | [1] | 1.59 | 1.59 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | |||||||||||
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 1 | 1 | 1 | 1 | 0 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 490 | $ 997 | $ 490 | $ 997 | $ 0 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 | 0 | 0 | 0 | 0 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 490 | 997 | 490 | 997 | 0 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 4 | 2 | 4 | 2 | 0 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 0 | 0 | 0 | 0 | 0 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 4 | 2 | 4 | 2 | 0 | ||||||
Municipal and other tax-exempt securities | |||||||||||
Schedule of Available-for-sale Securities [Line Items] | |||||||||||
Available-for-sale Securities, Amortized Cost | 10,590 | 32,885 | 10,590 | 32,885 | 27,182 | ||||||
Available-for-sale Securities, Fair Value | 10,697 | 32,765 | 10,697 | 32,765 | 27,080 | ||||||
Available-for-sale Securities, Gross Unrealized Gain | 111 | 293 | 111 | 293 | 181 | ||||||
Available-for-sale Securities, Gross Unrealized Loss | (4) | (413) | (4) | (413) | (283) | ||||||
Available-for-Sale Securities, Other Than Temporary Impairments | 0 | 0 | 0 | 0 | 0 | ||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Amortized Cost Basis | 4,574 | 4,574 | |||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Amortized Cost Basis | 2,303 | 2,303 | |||||||||
Available-for-sale Securities, Debt Maturities, Six To Ten Years, Amortized Cost Basis | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Amortized Cost Basis | 3,713 | 3,713 | |||||||||
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis | 10,590 | 10,590 | |||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost | 10,590 | 32,885 | 10,590 | 32,885 | 27,182 | ||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Fair Value | 4,580 | 4,580 | |||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Fair Value | 2,401 | 2,401 | |||||||||
Available-for-sale Securities, Debt Maturities, Six to Ten Years, Fair Value | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Fair Value | 3,716 | 3,716 | |||||||||
Available-for-sale Securities, Debt Maturities, Single Maturity Date | 10,697 | 10,697 | |||||||||
Available-for-sale Securities, Debt Maturities, Fair Value | $ 10,697 | $ 32,765 | $ 10,697 | $ 32,765 | $ 27,080 | ||||||
Available-for-sale Securities, Debt Maturities, Nominal Yield [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Nominal Yield | [2] | 3.45% | 3.45% | ||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Nominal Yield | [2] | 6.27% | 6.27% | ||||||||
Available-for-sale Securities, Debt Maturities, Six To Ten Years, Nominal Yield | [2] | 0.00% | 0.00% | ||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Nominal Yield | [2],[3] | 3.98% | 3.98% | ||||||||
Available-for-sale Securities, Debt Maturities, Nominal Yield | [2] | 4.25% | 4.25% | ||||||||
Available-for-sale Securities, Debt Maturities, Weighted Average Maturity | [1] | 6.53 | 6.53 | ||||||||
Available-for-sale Securities, Debt Maturities, Effective tax rate for nominal yield calculation | 25.00% | 25.00% | |||||||||
Available-for-sale Securities, Debt Maturities, Number of days for interest rates to reset | 35 | ||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | |||||||||||
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 10 | 13 | 10 | 13 | 19 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 4,784 | $ 1,957 | $ 4,784 | $ 1,957 | $ 12,765 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 495 | 4,655 | 495 | 4,655 | 4,802 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 5,279 | 6,612 | 5,279 | 6,612 | 17,567 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 3 | 1 | 3 | 1 | 18 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 1 | 412 | 1 | 412 | 265 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 4 | 413 | 4 | 413 | 283 | ||||||
Commercial mortgage-backed securities guaranteed by U.S. government agencies | |||||||||||
Schedule of Available-for-sale Securities [Line Items] | |||||||||||
Available-for-sale Securities, Amortized Cost | 2,799,953 | 2,788,543 | 2,799,953 | 2,788,543 | 2,858,885 | ||||||
Available-for-sale Securities, Fair Value | 2,738,451 | 2,782,070 | 2,738,451 | 2,782,070 | 2,834,961 | ||||||
Available-for-sale Securities, Gross Unrealized Gain | 1,815 | 7,804 | 1,815 | 7,804 | 1,963 | ||||||
Available-for-sale Securities, Gross Unrealized Loss | (63,317) | (14,277) | (63,317) | (14,277) | (25,887) | ||||||
Available-for-Sale Securities, Other Than Temporary Impairments | 0 | 0 | 0 | 0 | 0 | ||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Amortized Cost Basis | 8,070 | 8,070 | |||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Amortized Cost Basis | 987,244 | 987,244 | |||||||||
Available-for-sale Securities, Debt Maturities, Six To Ten Years, Amortized Cost Basis | 1,548,520 | 1,548,520 | |||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Amortized Cost Basis | 256,119 | 256,119 | |||||||||
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis | 2,799,953 | 2,799,953 | |||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost | 2,799,953 | 2,788,543 | 2,799,953 | 2,788,543 | 2,858,885 | ||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Fair Value | 8,041 | 8,041 | |||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Fair Value | 968,540 | 968,540 | |||||||||
Available-for-sale Securities, Debt Maturities, Six to Ten Years, Fair Value | 1,512,106 | 1,512,106 | |||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Fair Value | 249,764 | 249,764 | |||||||||
Available-for-sale Securities, Debt Maturities, Single Maturity Date | 2,738,451 | 2,738,451 | |||||||||
Available-for-sale Securities, Debt Maturities, Fair Value | $ 2,738,451 | $ 2,782,070 | $ 2,738,451 | $ 2,782,070 | $ 2,834,961 | ||||||
Available-for-sale Securities, Debt Maturities, Nominal Yield [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Nominal Yield | 1.67% | 1.67% | |||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Nominal Yield | 1.96% | 1.96% | |||||||||
Available-for-sale Securities, Debt Maturities, Six To Ten Years, Nominal Yield | 2.17% | 2.17% | |||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Nominal Yield | 2.20% | 2.20% | |||||||||
Available-for-sale Securities, Debt Maturities, Nominal Yield | 2.10% | 2.10% | |||||||||
Available-for-sale Securities, Debt Maturities, Weighted Average Maturity | [1] | 6.89 | 6.89 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | |||||||||||
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 211 | 121 | 211 | 121 | 185 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 1,675,839 | $ 1,388,406 | $ 1,675,839 | $ 1,388,406 | $ 1,465,703 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 554,819 | 78,828 | 554,819 | 78,828 | 652,296 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 2,230,658 | 1,467,234 | 2,230,658 | 1,467,234 | 2,117,999 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 42,732 | 12,690 | 42,732 | 12,690 | 11,824 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 20,585 | 1,587 | 20,585 | 1,587 | 14,063 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 63,317 | 14,277 | 63,317 | 14,277 | 25,887 | ||||||
Other debt securities | |||||||||||
Schedule of Available-for-sale Securities [Line Items] | |||||||||||
Available-for-sale Securities, Amortized Cost | 25,500 | 4,400 | 25,500 | 4,400 | 25,500 | ||||||
Available-for-sale Securities, Fair Value | 25,444 | 4,152 | 25,444 | 4,152 | 25,481 | ||||||
Available-for-sale Securities, Gross Unrealized Gain | 12 | 0 | 12 | 0 | 50 | ||||||
Available-for-sale Securities, Gross Unrealized Loss | (68) | (248) | (68) | (248) | (69) | ||||||
Available-for-Sale Securities, Other Than Temporary Impairments | 0 | 0 | 0 | 0 | 0 | ||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Amortized Cost Basis | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Amortized Cost Basis | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, Six To Ten Years, Amortized Cost Basis | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Amortized Cost Basis | 25,500 | 25,500 | |||||||||
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis | 25,500 | 25,500 | |||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost | 25,500 | 4,400 | 25,500 | 4,400 | 25,500 | ||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Fair Value | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Fair Value | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, Six to Ten Years, Fair Value | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Fair Value | 25,444 | 25,444 | |||||||||
Available-for-sale Securities, Debt Maturities, Single Maturity Date | 25,444 | 25,444 | |||||||||
Available-for-sale Securities, Debt Maturities, Fair Value | $ 25,444 | $ 4,152 | $ 25,444 | $ 4,152 | $ 25,481 | ||||||
Available-for-sale Securities, Debt Maturities, Nominal Yield [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Less than One Year, Nominal Yield | 0.00% | 0.00% | |||||||||
Available-for-sale Securities, Debt Maturities, One to Five Years, Nominal Yield | 0.00% | 0.00% | |||||||||
Available-for-sale Securities, Debt Maturities, Six To Ten Years, Nominal Yield | 0.00% | 0.00% | |||||||||
Available-for-sale Securities, Debt Maturities, Over Ten Years, Nominal Yield | [3] | 1.59% | 1.59% | ||||||||
Available-for-sale Securities, Debt Maturities, Nominal Yield | 1.59% | 1.59% | |||||||||
Available-for-sale Securities, Debt Maturities, Weighted Average Maturity | [1] | 14.18 | 14.18 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | |||||||||||
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 2 | 2 | 2 | 2 | 2 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 0 | $ 0 | $ 0 | $ 0 | $ 19,959 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 20,434 | 4,152 | 20,434 | 4,152 | 472 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 20,434 | 4,152 | 20,434 | 4,152 | 20,431 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 0 | 0 | 0 | 41 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 68 | 248 | 68 | 248 | 28 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 68 | 248 | 68 | 248 | 69 | ||||||
Residential Mortgage Backed Securities [Member] | |||||||||||
Schedule of Available-for-sale Securities [Line Items] | |||||||||||
Available-for-sale Securities, Amortized Cost | 5,506,931 | 5,468,038 | 5,506,931 | 5,468,038 | 5,429,459 | ||||||
Available-for-sale Securities, Fair Value | 5,387,784 | 5,485,760 | 5,387,784 | 5,485,760 | 5,402,373 | ||||||
Available-for-sale Securities, Gross Unrealized Gain | 22,648 | 52,418 | 22,648 | 52,418 | 35,605 | ||||||
Available-for-sale Securities, Gross Unrealized Loss | (141,422) | (34,696) | (141,422) | (34,696) | (62,300) | ||||||
Available-for-Sale Securities, Other Than Temporary Impairments | (373) | 0 | (373) | 0 | (391) | ||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis | 5,506,931 | 5,506,931 | |||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost | 5,506,931 | 5,468,038 | 5,506,931 | 5,468,038 | 5,429,459 | ||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value | 5,387,784 | 5,387,784 | |||||||||
Available-for-sale Securities, Debt Maturities, Fair Value | $ 5,387,784 | $ 5,485,760 | $ 5,387,784 | $ 5,485,760 | $ 5,402,373 | ||||||
Available-for-sale Securities, Debt Maturities, Nominal Yield [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Nominal Yield | [4] | 2.16% | 2.16% | ||||||||
Available-for-sale Securities, Debt Maturities, Average Expected Life of Mortgage-backed Securities | 4 years 110 days | ||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | |||||||||||
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 308 | 139 | 308 | 139 | 217 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 3,446,282 | $ 2,425,303 | $ 3,446,282 | $ 2,425,303 | $ 2,274,604 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 1,271,217 | 180,364 | 1,271,217 | 180,364 | 1,458,587 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 4,717,499 | 2,605,667 | 4,717,499 | 2,605,667 | 3,733,191 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 77,507 | 31,310 | 77,507 | 31,310 | 18,758 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 64,288 | 3,386 | 64,288 | 3,386 | 43,933 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 141,795 | 34,696 | 141,795 | 34,696 | 62,691 | ||||||
U.S. government agency residential mortgage-backed securities | |||||||||||
Schedule of Available-for-sale Securities [Line Items] | |||||||||||
Available-for-sale Securities, Amortized Cost | 5,441,555 | 5,381,382 | 5,441,555 | 5,381,382 | 5,355,148 | ||||||
Available-for-sale Securities, Fair Value | 5,304,560 | 5,382,377 | 5,304,560 | 5,382,377 | 5,309,152 | ||||||
Available-for-sale Securities, Gross Unrealized Gain | 4,427 | 35,691 | 4,427 | 35,691 | 16,304 | ||||||
Available-for-sale Securities, Gross Unrealized Loss | (141,422) | (34,696) | (141,422) | (34,696) | (62,300) | ||||||
Available-for-Sale Securities, Other Than Temporary Impairments | 0 | 0 | 0 | 0 | 0 | ||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost | 5,441,555 | 5,381,382 | 5,441,555 | 5,381,382 | 5,355,148 | ||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Fair Value | $ 5,304,560 | $ 5,382,377 | $ 5,304,560 | $ 5,382,377 | $ 5,309,152 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | |||||||||||
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 300 | 139 | 300 | 139 | 209 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 3,440,873 | $ 2,425,303 | $ 3,440,873 | $ 2,425,303 | $ 2,268,706 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 1,271,217 | 180,364 | 1,271,217 | 180,364 | 1,458,587 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 4,712,090 | 2,605,667 | 4,712,090 | 2,605,667 | 3,727,293 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 77,134 | 31,310 | 77,134 | 31,310 | 18,367 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 64,288 | 3,386 | 64,288 | 3,386 | 43,933 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 141,422 | 34,696 | 141,422 | 34,696 | 62,300 | ||||||
U.S. government agency residential mortgage-backed securities | Federal National Mortgage Association Certificates and Obligations (FNMA) [Member] | |||||||||||
Schedule of Available-for-sale Securities [Line Items] | |||||||||||
Available-for-sale Securities, Amortized Cost | 3,088,585 | 3,005,920 | 3,088,585 | 3,005,920 | 3,021,551 | ||||||
Available-for-sale Securities, Fair Value | 3,007,885 | 3,008,531 | 3,007,885 | 3,008,531 | 2,997,563 | ||||||
Available-for-sale Securities, Gross Unrealized Gain | 2,774 | 24,213 | 2,774 | 24,213 | 11,549 | ||||||
Available-for-sale Securities, Gross Unrealized Loss | (83,474) | (21,602) | (83,474) | (21,602) | (35,537) | ||||||
Available-for-Sale Securities, Other Than Temporary Impairments | 0 | 0 | 0 | 0 | 0 | ||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost | 3,088,585 | 3,005,920 | 3,088,585 | 3,005,920 | 3,021,551 | ||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Fair Value | $ 3,007,885 | $ 3,008,531 | $ 3,007,885 | $ 3,008,531 | $ 2,997,563 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | |||||||||||
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 174 | 75 | 174 | 75 | 113 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 2,049,432 | $ 1,381,687 | $ 2,049,432 | $ 1,381,687 | $ 1,203,041 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 710,962 | 87,371 | 710,962 | 87,371 | 824,029 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 2,760,394 | 1,469,058 | 2,760,394 | 1,469,058 | 2,027,070 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 44,860 | 20,288 | 44,860 | 20,288 | 9,618 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 38,614 | 1,314 | 38,614 | 1,314 | 25,919 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 83,474 | 21,602 | 83,474 | 21,602 | 35,537 | ||||||
U.S. government agency residential mortgage-backed securities | Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member] | |||||||||||
Schedule of Available-for-sale Securities [Line Items] | |||||||||||
Available-for-sale Securities, Amortized Cost | 1,580,185 | 1,412,376 | 1,580,185 | 1,412,376 | 1,545,971 | ||||||
Available-for-sale Securities, Fair Value | 1,538,582 | 1,412,472 | 1,538,582 | 1,412,472 | 1,531,009 | ||||||
Available-for-sale Securities, Gross Unrealized Gain | 738 | 7,785 | 738 | 7,785 | 3,148 | ||||||
Available-for-sale Securities, Gross Unrealized Loss | (42,341) | (7,689) | (42,341) | (7,689) | (18,110) | ||||||
Available-for-Sale Securities, Other Than Temporary Impairments | 0 | 0 | 0 | 0 | 0 | ||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost | 1,580,185 | 1,412,376 | 1,580,185 | 1,412,376 | 1,545,971 | ||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Fair Value | $ 1,538,582 | $ 1,412,472 | $ 1,538,582 | $ 1,412,472 | $ 1,531,009 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | |||||||||||
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 93 | 42 | 93 | 42 | 69 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 1,116,337 | $ 731,853 | $ 1,116,337 | $ 731,853 | $ 863,778 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 339,515 | 16,388 | 339,515 | 16,388 | 385,816 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 1,455,852 | 748,241 | 1,455,852 | 748,241 | 1,249,594 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 26,663 | 7,213 | 26,663 | 7,213 | 7,297 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 15,678 | 476 | 15,678 | 476 | 10,813 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 42,341 | 7,689 | 42,341 | 7,689 | 18,110 | ||||||
U.S. government agency residential mortgage-backed securities | Government National Mortgage Association Certificates and Obligations (GNMA) [Member] | |||||||||||
Schedule of Available-for-sale Securities [Line Items] | |||||||||||
Available-for-sale Securities, Amortized Cost | 772,785 | 938,086 | 772,785 | 938,086 | 787,626 | ||||||
Available-for-sale Securities, Fair Value | 758,093 | 936,365 | 758,093 | 936,365 | 780,580 | ||||||
Available-for-sale Securities, Gross Unrealized Gain | 915 | 3,641 | 915 | 3,641 | 1,607 | ||||||
Available-for-sale Securities, Gross Unrealized Loss | (15,607) | (5,362) | (15,607) | (5,362) | (8,653) | ||||||
Available-for-Sale Securities, Other Than Temporary Impairments | 0 | 0 | 0 | 0 | 0 | ||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost | 772,785 | 938,086 | 772,785 | 938,086 | 787,626 | ||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Fair Value | $ 758,093 | $ 936,365 | $ 758,093 | $ 936,365 | $ 780,580 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | |||||||||||
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 33 | 21 | 33 | 21 | 27 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 275,104 | $ 291,806 | $ 275,104 | $ 291,806 | $ 201,887 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 220,740 | 76,605 | 220,740 | 76,605 | 248,742 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 495,844 | 368,411 | 495,844 | 368,411 | 450,629 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 5,611 | 3,766 | 5,611 | 3,766 | 1,452 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 9,996 | 1,596 | 9,996 | 1,596 | 7,201 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 15,607 | 5,362 | 15,607 | 5,362 | 8,653 | ||||||
U.S. government agency residential mortgage-backed securities | Other | |||||||||||
Schedule of Available-for-sale Securities [Line Items] | |||||||||||
Available-for-sale Securities, Amortized Cost | 25,000 | 25,000 | |||||||||
Available-for-sale Securities, Fair Value | 25,009 | 25,009 | |||||||||
Available-for-sale Securities, Gross Unrealized Gain | 52 | 52 | |||||||||
Available-for-sale Securities, Gross Unrealized Loss | (43) | (43) | |||||||||
Available-for-Sale Securities, Other Than Temporary Impairments | 0 | 0 | |||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost | 25,000 | 25,000 | |||||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Fair Value | $ 25,009 | $ 25,009 | |||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | |||||||||||
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 1 | 1 | |||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 19,957 | $ 19,957 | |||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 | 0 | |||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 19,957 | 19,957 | |||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 43 | 43 | |||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 0 | 0 | |||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 43 | 43 | |||||||||
Privately issued residential mortgage-backed securities | |||||||||||
Schedule of Available-for-sale Securities [Line Items] | |||||||||||
Available-for-sale Securities, Amortized Cost | 65,376 | 86,656 | 65,376 | 86,656 | 74,311 | ||||||
Available-for-sale Securities, Fair Value | 83,224 | 103,383 | 83,224 | 103,383 | 93,221 | ||||||
Available-for-sale Securities, Gross Unrealized Gain | 18,221 | 16,727 | 18,221 | 16,727 | 19,301 | ||||||
Available-for-sale Securities, Gross Unrealized Loss | 0 | 0 | 0 | 0 | 0 | ||||||
Available-for-Sale Securities, Other Than Temporary Impairments | (373) | 0 | (373) | 0 | (391) | ||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost | 65,376 | 86,656 | 65,376 | 86,656 | 74,311 | ||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Fair Value | $ 83,224 | $ 103,383 | $ 83,224 | $ 103,383 | $ 93,221 | ||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | |||||||||||
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 8 | [5] | 0 | [6] | 8 | [5] | 0 | [6] | 8 | [7] | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 5,409 | [5] | $ 0 | [6] | $ 5,409 | [5] | $ 0 | [6] | $ 5,898 | [7] | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 | [5] | 0 | [6] | 0 | [5] | 0 | [6] | 0 | [7] | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 5,409 | [5] | 0 | [6] | 5,409 | [5] | 0 | [6] | 5,898 | [7] | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 373 | [5] | 0 | [6] | 373 | [5] | 0 | [6] | 391 | [7] | |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 0 | [5] | 0 | [6] | 0 | [5] | 0 | [6] | 0 | [7] | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | $ 373 | [5] | 0 | [6] | $ 373 | [5] | 0 | [6] | 391 | [7] | |
Perpetual preferred stock | |||||||||||
Schedule of Available-for-sale Securities [Line Items] | |||||||||||
Available-for-sale Securities, Amortized Cost | 12,562 | 12,562 | 12,562 | ||||||||
Available-for-sale Securities, Fair Value | 16,568 | 16,568 | 15,767 | ||||||||
Available-for-sale Securities, Gross Unrealized Gain | 4,006 | 4,006 | 3,205 | ||||||||
Available-for-sale Securities, Gross Unrealized Loss | 0 | 0 | 0 | ||||||||
Available-for-Sale Securities, Other Than Temporary Impairments | 0 | 0 | 0 | ||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost | 12,562 | 12,562 | 12,562 | ||||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Fair Value | $ 16,568 | $ 16,568 | $ 15,767 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | |||||||||||
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 0 | 0 | 0 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 0 | $ 0 | $ 0 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 | 0 | 0 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 0 | 0 | 0 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 0 | 0 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 0 | 0 | 0 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 0 | 0 | 0 | ||||||||
Equity securities and mutual funds | |||||||||||
Schedule of Available-for-sale Securities [Line Items] | |||||||||||
Available-for-sale Securities, Amortized Cost | 17,572 | 17,572 | 14,487 | ||||||||
Available-for-sale Securities, Fair Value | 18,728 | 18,728 | 14,916 | ||||||||
Available-for-sale Securities, Gross Unrealized Gain | 1,219 | 1,219 | 515 | ||||||||
Available-for-sale Securities, Gross Unrealized Loss | (63) | (63) | (86) | ||||||||
Available-for-Sale Securities, Other Than Temporary Impairments | 0 | 0 | 0 | ||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Amortized Cost | 17,572 | 17,572 | 14,487 | ||||||||
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] | |||||||||||
Available-for-sale Securities, Debt Maturities, Fair Value | $ 18,728 | $ 18,728 | $ 14,916 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | |||||||||||
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 91 | 91 | 111 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 1,668 | $ 1,668 | $ 911 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 887 | 887 | 2,203 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 2,555 | 2,555 | 3,114 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] | |||||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 22 | 22 | 7 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 41 | 41 | 79 | ||||||||
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | $ 63 | $ 63 | $ 86 | ||||||||
[1] | Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without penalty. | ||||||||||
[2] | Calculated on a taxable equivalent basis using a 25 percent effective tax rate. | ||||||||||
[3] | Nominal yield on municipal and other tax-exempt securities and other debt securities with contractual maturity dates over ten years are based on variable rates which generally are reset within 35. | ||||||||||
[4] | The nominal yield on mortgage-backed securities is based upon prepayment assumptions at the purchase date. Actual yields earned may differ significantly based upon actual prepayments. See Quarterly Financial Summary –– Unaudited following for current yields on available for sale securities portfolio. | ||||||||||
[5] | Includes securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income. | ||||||||||
[6] | Includes securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income. | ||||||||||
[7] | Includes securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income. |
Securities Fair Value Option Se
Securities Fair Value Option Securities (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017 | Jun. 30, 2017 |
Schedule of Fair Value Option Securities [Line Items] | |||
Fair Value Option Securities, Fair Value | $ 482,227 | $ 755,054 | $ 445,169 |
U.S. government agency residential mortgage-backed securities | |||
Schedule of Fair Value Option Securities [Line Items] | |||
Fair Value Option Securities, Fair Value | 482,227 | 755,054 | 445,169 |
Fair Value Option Securities, Net Unrealized Gain or Loss | $ (5,509) | $ (1,877) | $ 1,247 |
Securities Restricted Equity Se
Securities Restricted Equity Securities (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017 | Jun. 30, 2017 |
Restricted Equity Securities [Abstract] | |||
Federal Reserve stock | $ 41,178 | $ 40,746 | $ 36,676 |
Federal Home Loan Bank stock | 306,543 | 279,200 | 274,113 |
Other | 0 | 243 | 244 |
Total | $ 347,721 | $ 320,189 | $ 311,033 |
Derivatives, Fair Value of Deri
Derivatives, Fair Value of Derivatives Contracts (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017 | Jun. 30, 2017 | |||
Derivative Assets, Fair Value, Net [Abstract] | ||||||
Derviative contracts, net of cash collateral, Assets, Fair value | $ 373,373 | $ 220,502 | $ 280,289 | |||
Derivative Liabilities, Fair Value, Net [Abstract] | ||||||
Derivative Liabilities, Fair Value, Net of Cash Collateral | 234,856 | 171,963 | 285,819 | |||
Not Designated as Hedging Instrument [Member] | ||||||
Notional Amount of Derivatives [Abstract] | ||||||
Derivative Assets, Notional | 28,203,682 | [1] | 20,038,522 | [2] | 29,511,796 | [3] |
Derivative Liabilities, Notional | 29,551,215 | [1] | 20,186,467 | [2] | 27,125,429 | [3] |
Derivative Assets, Fair Value, Net [Abstract] | ||||||
Derivative Assets, Gross Fair Value | 486,962 | 301,052 | 355,296 | |||
Derivative Assets, Netting Adjustments | (100,160) | (74,022) | (50,607) | |||
Derivative Assets, Net Fair Value Before Cash Collateral | 386,802 | 227,030 | 304,689 | |||
Derivative Assets, Cash Collateral | (13,428) | (6,528) | (24,400) | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 373,374 | 220,502 | 280,289 | |||
Derivative Liabilities, Fair Value, Net [Abstract] | ||||||
Derivative Liabilities, Gross Fair Value | 484,768 | 302,405 | 357,521 | |||
Derivative Liabilities, Netting Adjustments | (100,160) | (74,022) | (50,607) | |||
Derivative Liabilities, Net Fair Value Before Cash Collateral | 384,608 | 228,383 | 306,914 | |||
Derivative Liabilities, Cash Collateral | (149,752) | (56,420) | (21,095) | |||
Derivative Liabilities, Fair Value, Net of Cash Collateral | 234,856 | 171,963 | 285,819 | |||
Not Designated as Hedging Instrument [Member] | To-be-announced residential mortgage-backed securities | ||||||
Notional Amount of Derivatives [Abstract] | ||||||
Derivative Assets, Notional | 15,027,678 | [1] | 12,347,542 | [2] | 16,174,687 | [3] |
Derivative Liabilities, Notional | 14,443,478 | [1] | 11,537,742 | [2] | 16,174,687 | [3] |
Derivative Assets, Fair Value, Net [Abstract] | ||||||
Derivative Assets, Gross Fair Value | 52,681 | 23,606 | 57,948 | |||
Derivative Assets, Netting Adjustments | (17,382) | (18,096) | (29,034) | |||
Derivative Assets, Net Fair Value Before Cash Collateral | 35,299 | 5,510 | 28,914 | |||
Derivative Assets, Cash Collateral | 0 | 0 | 0 | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 35,299 | 5,510 | 28,914 | |||
Derivative Liabilities, Fair Value, Net [Abstract] | ||||||
Derivative Liabilities, Gross Fair Value | 49,343 | 20,367 | 53,829 | |||
Derivative Liabilities, Netting Adjustments | (17,382) | (18,096) | (29,034) | |||
Derivative Liabilities, Net Fair Value Before Cash Collateral | 31,961 | 2,271 | 24,795 | |||
Derivative Liabilities, Cash Collateral | (31,808) | (704) | 0 | |||
Derivative Liabilities, Fair Value, Net of Cash Collateral | 153 | 1,567 | 24,795 | |||
Not Designated as Hedging Instrument [Member] | Interest rate swaps | ||||||
Notional Amount of Derivatives [Abstract] | ||||||
Derivative Assets, Notional | 1,745,237 | [1] | 1,478,944 | [2] | 1,450,193 | [3] |
Derivative Liabilities, Notional | 1,745,237 | [1] | 1,478,944 | [2] | 1,450,193 | [3] |
Derivative Assets, Fair Value, Net [Abstract] | ||||||
Derivative Assets, Gross Fair Value | 43,040 | 28,278 | 29,932 | |||
Derivative Assets, Netting Adjustments | (2,193) | 0 | 0 | |||
Derivative Assets, Net Fair Value Before Cash Collateral | 40,847 | 28,278 | 29,932 | |||
Derivative Assets, Cash Collateral | (11,737) | (4,964) | (2,206) | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 29,110 | 23,314 | 27,726 | |||
Derivative Liabilities, Fair Value, Net [Abstract] | ||||||
Derivative Liabilities, Gross Fair Value | 43,043 | 28,298 | 29,982 | |||
Derivative Liabilities, Netting Adjustments | (2,193) | 0 | 0 | |||
Derivative Liabilities, Net Fair Value Before Cash Collateral | 40,850 | 28,298 | 29,982 | |||
Derivative Liabilities, Cash Collateral | (4,946) | (12,896) | (15,396) | |||
Derivative Liabilities, Fair Value, Net of Cash Collateral | 35,904 | 15,402 | 14,586 | |||
Not Designated as Hedging Instrument [Member] | Energy contracts | ||||||
Notional Amount of Derivatives [Abstract] | ||||||
Derivative Assets, Notional | 1,465,826 | [1] | 1,190,067 | [2] | 891,480 | [3] |
Derivative Liabilities, Notional | 1,434,980 | [1] | 1,166,924 | [2] | 874,625 | [3] |
Derivative Assets, Fair Value, Net [Abstract] | ||||||
Derivative Assets, Gross Fair Value | 200,640 | 103,044 | 56,824 | |||
Derivative Assets, Netting Adjustments | (69,991) | (47,873) | (20,546) | |||
Derivative Assets, Net Fair Value Before Cash Collateral | 130,649 | 55,171 | 36,278 | |||
Derivative Assets, Cash Collateral | 0 | (196) | (21,267) | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 130,649 | 54,975 | 15,011 | |||
Derivative Liabilities, Fair Value, Net [Abstract] | ||||||
Derivative Liabilities, Gross Fair Value | 199,119 | 101,603 | 53,895 | |||
Derivative Liabilities, Netting Adjustments | (69,990) | (47,873) | (20,546) | |||
Derivative Liabilities, Net Fair Value Before Cash Collateral | 129,129 | 53,730 | 33,349 | |||
Derivative Liabilities, Cash Collateral | (112,481) | (42,767) | 0 | |||
Derivative Liabilities, Fair Value, Net of Cash Collateral | 16,648 | 10,963 | 33,349 | |||
Not Designated as Hedging Instrument [Member] | Agricultural contracts | ||||||
Notional Amount of Derivatives [Abstract] | ||||||
Derivative Assets, Notional | 23,508 | [1] | 53,238 | [2] | 45,250 | [3] |
Derivative Liabilities, Notional | 23,496 | [1] | 48,552 | [2] | 45,262 | [3] |
Derivative Assets, Fair Value, Net [Abstract] | ||||||
Derivative Assets, Gross Fair Value | 1,164 | 1,576 | 3,541 | |||
Derivative Assets, Netting Adjustments | (181) | (960) | (1,027) | |||
Derivative Assets, Net Fair Value Before Cash Collateral | 983 | 616 | 2,514 | |||
Derivative Assets, Cash Collateral | (741) | 0 | 0 | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 242 | 616 | 2,514 | |||
Derivative Liabilities, Fair Value, Net [Abstract] | ||||||
Derivative Liabilities, Gross Fair Value | 1,142 | 1,551 | 3,538 | |||
Derivative Liabilities, Netting Adjustments | (181) | (960) | (1,027) | |||
Derivative Liabilities, Net Fair Value Before Cash Collateral | 961 | 591 | 2,511 | |||
Derivative Liabilities, Cash Collateral | 0 | 0 | (2,511) | |||
Derivative Liabilities, Fair Value, Net of Cash Collateral | 961 | 591 | 0 | |||
Not Designated as Hedging Instrument [Member] | Foreign exchange contracts | ||||||
Notional Amount of Derivatives [Abstract] | ||||||
Derivative Assets, Notional | 174,851 | [1] | 132,397 | [2] | 169,529 | [3] |
Derivative Liabilities, Notional | 161,567 | [1] | 126,251 | [2] | 169,553 | [3] |
Derivative Assets, Fair Value, Net [Abstract] | ||||||
Derivative Assets, Gross Fair Value | 170,556 | 129,551 | 162,429 | |||
Derivative Assets, Netting Adjustments | 0 | 0 | 0 | |||
Derivative Assets, Net Fair Value Before Cash Collateral | 170,556 | 129,551 | 162,429 | |||
Derivative Assets, Cash Collateral | (290) | (448) | (7) | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 170,266 | 129,103 | 162,422 | |||
Derivative Liabilities, Fair Value, Net [Abstract] | ||||||
Derivative Liabilities, Gross Fair Value | 157,174 | 123,321 | 162,276 | |||
Derivative Liabilities, Netting Adjustments | (1) | 0 | 0 | |||
Derivative Liabilities, Net Fair Value Before Cash Collateral | 157,173 | 123,321 | 162,276 | |||
Derivative Liabilities, Cash Collateral | (517) | (53) | (3,188) | |||
Derivative Liabilities, Fair Value, Net of Cash Collateral | 156,656 | 123,268 | 159,088 | |||
Not Designated as Hedging Instrument [Member] | Equity option contracts | ||||||
Notional Amount of Derivatives [Abstract] | ||||||
Derivative Assets, Notional | 93,943 | [1] | 99,633 | [2] | 100,159 | [3] |
Derivative Liabilities, Notional | 93,943 | [1] | 99,633 | [2] | 100,159 | [3] |
Derivative Assets, Fair Value, Net [Abstract] | ||||||
Derivative Assets, Gross Fair Value | 4,121 | 5,503 | 4,437 | |||
Derivative Assets, Netting Adjustments | 0 | 0 | 0 | |||
Derivative Assets, Net Fair Value Before Cash Collateral | 4,121 | 5,503 | 4,437 | |||
Derivative Assets, Cash Collateral | (660) | (920) | (920) | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 3,461 | 4,583 | 3,517 | |||
Derivative Liabilities, Fair Value, Net [Abstract] | ||||||
Derivative Liabilities, Gross Fair Value | 4,121 | 5,503 | 4,437 | |||
Derivative Liabilities, Netting Adjustments | 0 | 0 | 0 | |||
Derivative Liabilities, Net Fair Value Before Cash Collateral | 4,121 | 5,503 | 4,437 | |||
Derivative Liabilities, Cash Collateral | 0 | 0 | 0 | |||
Derivative Liabilities, Fair Value, Net of Cash Collateral | 4,121 | 5,503 | 4,437 | |||
Not Designated as Hedging Instrument [Member] | Total customer risk management programs | ||||||
Notional Amount of Derivatives [Abstract] | ||||||
Derivative Assets, Notional | 18,531,043 | [1] | 15,301,821 | [2] | 18,831,298 | [3] |
Derivative Liabilities, Notional | 17,902,701 | [1] | 14,458,046 | [2] | 18,814,479 | [3] |
Derivative Assets, Fair Value, Net [Abstract] | ||||||
Derivative Assets, Gross Fair Value | 472,202 | 291,558 | 315,111 | |||
Derivative Assets, Netting Adjustments | (89,747) | (66,929) | (50,607) | |||
Derivative Assets, Net Fair Value Before Cash Collateral | 382,455 | 224,629 | 264,504 | |||
Derivative Assets, Cash Collateral | (13,428) | (6,528) | (24,400) | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 369,027 | 218,101 | 240,104 | |||
Derivative Liabilities, Fair Value, Net [Abstract] | ||||||
Derivative Liabilities, Gross Fair Value | 453,942 | 280,643 | 307,957 | |||
Derivative Liabilities, Netting Adjustments | (89,747) | (66,929) | (50,607) | |||
Derivative Liabilities, Net Fair Value Before Cash Collateral | 364,195 | 213,714 | 257,350 | |||
Derivative Liabilities, Cash Collateral | (149,752) | (56,420) | (21,095) | |||
Derivative Liabilities, Fair Value, Net of Cash Collateral | 214,443 | 157,294 | 236,255 | |||
Not Designated as Hedging Instrument [Member] | Internal risk management programs | ||||||
Notional Amount of Derivatives [Abstract] | ||||||
Derivative Assets, Notional | 9,672,639 | [1] | 4,736,701 | [2] | 10,680,498 | [3] |
Derivative Liabilities, Notional | 11,648,514 | [1] | 5,728,421 | [2] | 8,310,950 | [3] |
Derivative Assets, Fair Value, Net [Abstract] | ||||||
Derivative Assets, Gross Fair Value | 14,760 | 9,494 | 40,185 | |||
Derivative Assets, Netting Adjustments | (10,413) | (7,093) | 0 | |||
Derivative Assets, Net Fair Value Before Cash Collateral | 4,347 | 2,401 | 40,185 | |||
Derivative Assets, Cash Collateral | 0 | 0 | 0 | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 4,347 | 2,401 | 40,185 | |||
Derivative Liabilities, Fair Value, Net [Abstract] | ||||||
Derivative Liabilities, Gross Fair Value | 30,826 | 21,762 | 49,564 | |||
Derivative Liabilities, Netting Adjustments | (10,413) | (7,093) | 0 | |||
Derivative Liabilities, Net Fair Value Before Cash Collateral | 20,413 | 14,669 | 49,564 | |||
Derivative Liabilities, Cash Collateral | 0 | 0 | 0 | |||
Derivative Liabilities, Fair Value, Net of Cash Collateral | $ 20,413 | $ 14,669 | $ 49,564 | |||
[1] | Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract. | |||||
[2] | Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract. | |||||
[3] | Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract. |
Derivatives, Derivatives Instru
Derivatives, Derivatives Instruments Gain (Loss) in Income Statement (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | |
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract] | ||||
Brokergage and Trading Revenue | $ 8,815 | $ 18,122 | $ 17,838 | $ 29,293 |
Gain (Loss) on Derivatives, Net | (3,057) | 3,241 | (8,742) | 2,791 |
To-be-announced residential mortgage-backed securities | ||||
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract] | ||||
Brokergage and Trading Revenue | 7,586 | 9,205 | 14,405 | 17,232 |
Gain (Loss) on Derivatives, Net | 0 | 0 | 0 | 0 |
Interest rate swaps | ||||
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract] | ||||
Brokergage and Trading Revenue | 683 | 665 | 1,439 | 1,124 |
Gain (Loss) on Derivatives, Net | 0 | 0 | 0 | 0 |
Energy contracts | ||||
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract] | ||||
Brokergage and Trading Revenue | 1,416 | 1,666 | 4,556 | 4,539 |
Gain (Loss) on Derivatives, Net | 0 | 0 | 0 | 0 |
Agricultural contracts | ||||
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract] | ||||
Brokergage and Trading Revenue | 15 | 11 | 30 | 20 |
Gain (Loss) on Derivatives, Net | 0 | 0 | 0 | 0 |
Foreign exchange contracts | ||||
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract] | ||||
Brokergage and Trading Revenue | 96 | 90 | 272 | 360 |
Gain (Loss) on Derivatives, Net | 0 | 0 | 0 | 0 |
Equity option contracts | ||||
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract] | ||||
Brokergage and Trading Revenue | 0 | 0 | 0 | 0 |
Gain (Loss) on Derivatives, Net | 0 | 0 | 0 | 0 |
Total customer risk management programs | ||||
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract] | ||||
Brokergage and Trading Revenue | 9,796 | 11,637 | 20,702 | 23,275 |
Gain (Loss) on Derivatives, Net | 0 | 0 | 0 | 0 |
Internal risk management programs | ||||
Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract] | ||||
Brokergage and Trading Revenue | (981) | 6,485 | (2,864) | 6,018 |
Gain (Loss) on Derivatives, Net | $ (3,057) | $ 3,241 | $ (8,742) | $ 2,791 |
Loans and Allowance for Credit
Loans and Allowance for Credit Losses, Loans by Portfolio Type (Details) - USD ($) $ in Thousands | 6 Months Ended | |||
Jun. 30, 2018 | Dec. 31, 2017 | Jun. 30, 2017 | ||
Loan receivables disclosure [Abstract] | ||||
Loans, fixed rate of interest | $ 4,525,904 | $ 4,529,296 | $ 4,540,923 | |
Loans, variable rate of interest | 13,312,135 | 12,436,254 | 12,397,283 | |
Loans, non-accrual | 165,657 | 187,874 | 245,439 | |
Total | 18,003,696 | 17,153,424 | 17,183,645 | |
Accruing loans past due (90 days) | [1] | 879 | 633 | 1,414 |
Credit Commitments [Abstract] | ||||
Outstanding commitments to extend credit | 10,300,000 | |||
Outstanding standby letters of credit | 660,000 | |||
Texas [Member] | Geographic Concentration Risk [Member] | ||||
Loan receivables disclosure [Abstract] | ||||
Total | $ 6,000,000 | |||
Loans receivable, other information [Abstract] | ||||
Percentage of loan portfolio attributed to Texas (in hundredths) | 33.00% | |||
Oklahoma [Member] | Geographic Concentration Risk [Member] | ||||
Loan receivables disclosure [Abstract] | ||||
Total | $ 3,500,000 | |||
Loans receivable, other information [Abstract] | ||||
Percentage of loan portfolio attributed to Oklahoma (in hundredths) | 20.00% | |||
Commercial | ||||
Loan receivables disclosure [Abstract] | ||||
Loans, fixed rate of interest | $ 2,206,735 | 2,217,432 | 2,198,066 | |
Loans, variable rate of interest | 9,021,326 | 8,379,240 | 8,242,732 | |
Loans, non-accrual | 120,978 | 137,303 | 197,157 | |
Total | 11,349,039 | 10,733,975 | 10,637,955 | |
Commercial | Texas [Member] | Geographic Concentration Risk [Member] | ||||
Loan receivables disclosure [Abstract] | ||||
Total | $ 3,800,000 | |||
Loans receivable, other information [Abstract] | ||||
Percentage of loan portfolio attributed to Texas (in hundredths) | 33.00% | |||
Commercial | Oklahoma [Member] | Geographic Concentration Risk [Member] | ||||
Loan receivables disclosure [Abstract] | ||||
Total | $ 2,200,000 | |||
Loans receivable, other information [Abstract] | ||||
Percentage of loan portfolio attributed to Oklahoma (in hundredths) | 19.00% | |||
Commercial | Energy [Member] | ||||
Loan receivables disclosure [Abstract] | ||||
Total | $ 3,147,219 | 2,930,156 | 2,847,240 | |
Commercial | Energy [Member] | Credit Concentration Risk [Member] | ||||
Loan receivables disclosure [Abstract] | ||||
Total | $ 3,100,000 | |||
Loans receivable, other information [Abstract] | ||||
Percentage of loan class to total loans | 17.00% | |||
Commercial | Energy Producers [Member] | Credit Concentration Risk [Member] | ||||
Loan receivables disclosure [Abstract] | ||||
Total | $ 2,600,000 | |||
Loans receivable, other information [Abstract] | ||||
Percentage of committed energy production loans secured by oil | 56.00% | |||
Percentage of committed energy production loans secured by natural gas | 44.00% | |||
Commercial | Services [Member] | ||||
Loan receivables disclosure [Abstract] | ||||
Total | $ 2,944,499 | 2,986,949 | 2,958,827 | |
Commercial | Services [Member] | Credit Concentration Risk [Member] | ||||
Loan receivables disclosure [Abstract] | ||||
Total | $ 2,900,000 | |||
Loans receivable, other information [Abstract] | ||||
Percentage of loan class to total loans | 16.00% | |||
Amount of loans with individual balances less than $10 million | $ 1,400,000 | |||
Maximum loan amount for certain individual loans in category | 10,000 | |||
Commercial | Healthcare [Member] | ||||
Loan receivables disclosure [Abstract] | ||||
Total | 2,353,722 | 2,314,753 | 2,221,518 | |
Commercial | Healthcare [Member] | Credit Concentration Risk [Member] | ||||
Loan receivables disclosure [Abstract] | ||||
Total | $ 2,400,000 | |||
Loans receivable, other information [Abstract] | ||||
Percentage of loan class to total loans | 13.00% | |||
Commercial real estate | ||||
Loan receivables disclosure [Abstract] | ||||
Loans, fixed rate of interest | $ 583,782 | 548,692 | 594,542 | |
Loans, variable rate of interest | 3,126,442 | 2,928,440 | 3,090,275 | |
Loans, non-accrual | 1,996 | 2,855 | 3,775 | |
Total | $ 3,712,220 | 3,479,987 | 3,688,592 | |
Commercial real estate | Texas [Member] | Geographic Concentration Risk [Member] | ||||
Loans receivable, other information [Abstract] | ||||
Percentage of loan portfolio secured by property in Texas (in hundredths) | 33.00% | |||
Commercial real estate | Oklahoma [Member] | Geographic Concentration Risk [Member] | ||||
Loans receivable, other information [Abstract] | ||||
Percentage of loan portfolio secured by property in Oklahoma (in hundredths) | 12.00% | |||
Residential mortgage | ||||
Loan receivables disclosure [Abstract] | ||||
Loans, fixed rate of interest | $ 1,567,216 | 1,608,655 | 1,597,587 | |
Loans, variable rate of interest | 332,691 | 317,584 | 297,376 | |
Loans, non-accrual | 42,343 | 47,447 | 44,235 | |
Total | 1,942,250 | 1,973,686 | 1,939,198 | |
Residential mortgage | Permanent mortgage [Member] | ||||
Loan receivables disclosure [Abstract] | ||||
Total | $ 1,068,412 | 1,043,435 | 989,040 | |
Loans receivable, other information [Abstract] | ||||
Minimum FICO required for jumbo loan approval | 720 | |||
Maximum debt-to-income ratio on jumbo loans (in hundredths) | 38.00% | |||
Minimum loan-to-value ratio on jumbo loans (in hundredths) | 60.00% | |||
Maximum loan-to-value ratio on jumbo loans (in hundredths) | 100.00% | |||
Minimum period for fixed rate on variable rate jumbo loans (in years) | 3 years | |||
Maximum period for fixed rate on variable rate jumbo loans (in years) | 10 years | |||
Residential mortgage | Permanent mortgages guaranteed by US government agencies [Member] | ||||
Loan receivables disclosure [Abstract] | ||||
Total | $ 169,653 | 197,506 | 191,729 | |
Residential mortgage | Home equity [Member] | ||||
Loan receivables disclosure [Abstract] | ||||
Total | $ 704,185 | 732,745 | 758,429 | |
Loans receivable, other information [Abstract] | ||||
Percentage of home equity portfolio comprised of first lien loans | 62.00% | |||
Percentage of home equity portfolio comprised of junior lien loans | 38.00% | |||
Percentage of junior lien home equity loans that are amortizing term loans | 45.00% | |||
Percentage of junior lien home equity loans that are revolving lines of credit | 55.00% | |||
Home equity loans, description | Home equity loans generally require a minimum FICO score of 700 and a maximum DTI of 40 percent. | |||
Home equity loans, maximum | $ 400 | |||
Home equity loans, revolving period | 5 years | |||
Home equity loans, amortization period following revolving period | 15 years | |||
Home equity loans, discretionary additional revolving period | 5 years | |||
Personal | ||||
Loan receivables disclosure [Abstract] | ||||
Loans, fixed rate of interest | $ 168,171 | 154,517 | 150,728 | |
Loans, variable rate of interest | 831,676 | 810,990 | 766,900 | |
Loans, non-accrual | 340 | 269 | 272 | |
Total | $ 1,000,187 | $ 965,776 | $ 917,900 | |
[1] | Excludes residential mortgage loans guaranteed by agencies of the U.S. government |
Loans and Allowances for Cred44
Loans and Allowances for Credit Losses, Activity in Allowance for Credit Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | |||||
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Dec. 31, 2017 | Jun. 30, 2017 | |
Allowance for loan losses [Roll Forward] | |||||||
Beginning balance | $ 223,967 | $ 248,710 | $ 230,682 | $ 246,159 | |||
Provision for loan losses | 1,702 | 3,009 | (3,699) | 4,813 | |||
Loans charged off | (15,105) | (2,872) | (17,995) | (5,025) | |||
Recoveries | 4,578 | 1,214 | 6,154 | 4,114 | |||
Ending balance | 215,142 | 250,061 | 215,142 | 250,061 | |||
Allowance for off-balance sheet credit losses [Roll Forward] | |||||||
Beginning balance | 4,135 | 9,440 | 3,734 | 11,244 | |||
Provision for off-balance sheet credit losses | (1,702) | (3,009) | (1,301) | (4,813) | |||
Ending balance | 2,433 | 6,431 | 2,433 | 6,431 | |||
Total provision for credit losses | 0 | 0 | (5,000) | 0 | |||
Recorded investment [Abstract] | |||||||
Collectively measured for impairment, recorded investment | $ 17,838,039 | $ 16,965,550 | $ 16,938,206 | ||||
Individually measured for impairment, recorded investment | 165,657 | 187,874 | 245,439 | ||||
Total | 18,003,696 | 17,153,424 | 17,183,645 | ||||
Related allowance [Abstract] | |||||||
Collectively measured for impairment, related allowance | 184,470 | 199,634 | 212,994 | ||||
Individually measured for impairment, related allowance | 15,200 | 8,831 | 9,693 | ||||
Total | 223,967 | 248,710 | 230,682 | 246,159 | 215,142 | 230,682 | 250,061 |
Commercial | |||||||
Allowance for loan losses [Roll Forward] | |||||||
Beginning balance | 120,083 | 137,616 | 124,269 | 140,213 | |||
Provision for loan losses | 7,116 | 1,546 | 4,005 | (1,809) | |||
Loans charged off | (13,775) | (1,703) | (15,338) | (2,127) | |||
Recoveries | 298 | 283 | 786 | 1,465 | |||
Ending balance | 113,722 | 137,742 | 113,722 | 137,742 | |||
Allowance for off-balance sheet credit losses [Roll Forward] | |||||||
Beginning balance | 4,027 | 9,288 | 3,644 | 11,063 | |||
Provision for off-balance sheet credit losses | (1,666) | (2,987) | (1,283) | (4,762) | |||
Ending balance | 2,361 | 6,301 | 2,361 | 6,301 | |||
Total provision for credit losses | 5,450 | (1,441) | 2,722 | (6,571) | |||
Recorded investment [Abstract] | |||||||
Collectively measured for impairment, recorded investment | 11,228,061 | 10,596,672 | 10,440,798 | ||||
Individually measured for impairment, recorded investment | 120,978 | 137,303 | 197,157 | ||||
Total | 11,349,039 | 10,733,975 | 10,637,955 | ||||
Related allowance [Abstract] | |||||||
Collectively measured for impairment, related allowance | 98,522 | 115,438 | 128,049 | ||||
Individually measured for impairment, related allowance | 15,200 | 8,831 | 9,693 | ||||
Total | 120,083 | 137,616 | 124,269 | 140,213 | 113,722 | 124,269 | 137,742 |
Commercial real estate | |||||||
Allowance for loan losses [Roll Forward] | |||||||
Beginning balance | 57,070 | 58,343 | 56,621 | 50,749 | |||
Provision for loan losses | (1,409) | 105 | (1,143) | 6,964 | |||
Loans charged off | 0 | (76) | 0 | (76) | |||
Recoveries | 3,097 | 208 | 3,280 | 943 | |||
Ending balance | 58,758 | 58,580 | 58,758 | 58,580 | |||
Allowance for off-balance sheet credit losses [Roll Forward] | |||||||
Beginning balance | 44 | 106 | 45 | 123 | |||
Provision for off-balance sheet credit losses | (27) | (22) | (28) | (39) | |||
Ending balance | 17 | 84 | 17 | 84 | |||
Total provision for credit losses | (1,436) | 83 | (1,171) | 6,925 | |||
Recorded investment [Abstract] | |||||||
Collectively measured for impairment, recorded investment | 3,710,224 | 3,477,132 | 3,684,817 | ||||
Individually measured for impairment, recorded investment | 1,996 | 2,855 | 3,775 | ||||
Total | 3,712,220 | 3,479,987 | 3,688,592 | ||||
Related allowance [Abstract] | |||||||
Collectively measured for impairment, related allowance | 58,758 | 56,621 | 58,580 | ||||
Individually measured for impairment, related allowance | 0 | 0 | 0 | ||||
Total | 57,070 | 58,343 | 56,621 | 50,749 | 58,758 | 56,621 | 58,580 |
Residential mortgage | |||||||
Allowance for loan losses [Roll Forward] | |||||||
Beginning balance | 18,431 | 18,177 | 18,451 | 18,224 | |||
Provision for loan losses | (257) | (47) | (419) | (86) | |||
Loans charged off | (135) | (40) | (235) | (276) | |||
Recoveries | 505 | 169 | 747 | 397 | |||
Ending balance | 18,544 | 18,259 | 18,544 | 18,259 | |||
Allowance for off-balance sheet credit losses [Roll Forward] | |||||||
Beginning balance | 62 | 40 | 43 | 50 | |||
Provision for off-balance sheet credit losses | (9) | (2) | 10 | (12) | |||
Ending balance | 53 | 38 | 53 | 38 | |||
Total provision for credit losses | (266) | (49) | (409) | (98) | |||
Recorded investment [Abstract] | |||||||
Collectively measured for impairment, recorded investment | 1,899,907 | 1,926,239 | 1,894,963 | ||||
Individually measured for impairment, recorded investment | 42,343 | 47,447 | 44,235 | ||||
Total | 1,942,250 | 1,973,686 | 1,939,198 | ||||
Related allowance [Abstract] | |||||||
Collectively measured for impairment, related allowance | 18,544 | 18,451 | 18,259 | ||||
Individually measured for impairment, related allowance | 0 | 0 | 0 | ||||
Total | 18,431 | 18,177 | 18,451 | 18,224 | 18,544 | 18,451 | 18,259 |
Personal | |||||||
Allowance for loan losses [Roll Forward] | |||||||
Beginning balance | 8,408 | 7,247 | 9,124 | 8,773 | |||
Provision for loan losses | 755 | 1,358 | 603 | 570 | |||
Loans charged off | (1,195) | (1,053) | (2,422) | (2,546) | |||
Recoveries | 678 | 554 | 1,341 | 1,309 | |||
Ending balance | 8,646 | 8,106 | 8,646 | 8,106 | |||
Allowance for off-balance sheet credit losses [Roll Forward] | |||||||
Beginning balance | 2 | 6 | 2 | 8 | |||
Provision for off-balance sheet credit losses | 0 | 2 | 0 | 0 | |||
Ending balance | 2 | 8 | 2 | 8 | |||
Total provision for credit losses | 755 | 1,360 | 603 | 570 | |||
Recorded investment [Abstract] | |||||||
Collectively measured for impairment, recorded investment | 999,847 | 965,507 | 917,628 | ||||
Individually measured for impairment, recorded investment | 340 | 269 | 272 | ||||
Total | 1,000,187 | 965,776 | 917,900 | ||||
Related allowance [Abstract] | |||||||
Collectively measured for impairment, related allowance | 8,646 | 9,124 | 8,106 | ||||
Individually measured for impairment, related allowance | 0 | 0 | 0 | ||||
Total | 8,408 | 7,247 | 9,124 | 8,773 | 8,646 | 9,124 | 8,106 |
Specific Allowance [Member] | |||||||
Allowance for loan losses [Roll Forward] | |||||||
Beginning balance | 208,465 | ||||||
Ending balance | 199,670 | 222,687 | 199,670 | 222,687 | |||
Recorded investment [Abstract] | |||||||
Collectively measured for impairment, recorded investment | 17,838,039 | 16,965,550 | 16,938,206 | ||||
Individually measured for impairment, recorded investment | 165,657 | 187,874 | 245,439 | ||||
Total | 18,003,696 | 17,153,424 | 17,183,645 | ||||
Related allowance [Abstract] | |||||||
Collectively measured for impairment, related allowance | 184,470 | 199,634 | 212,994 | ||||
Individually measured for impairment, related allowance | 15,200 | 8,831 | 9,693 | ||||
Total | 199,670 | 222,687 | 208,465 | 222,687 | 199,670 | 208,465 | 222,687 |
Nonspecific Allowance [Member] | |||||||
Allowance for loan losses [Roll Forward] | |||||||
Beginning balance | 19,975 | 27,327 | 22,217 | 28,200 | |||
Provision for loan losses | (4,503) | 47 | (6,745) | (826) | |||
Loans charged off | 0 | 0 | 0 | 0 | |||
Recoveries | 0 | 0 | 0 | 0 | |||
Ending balance | 15,472 | 27,374 | 15,472 | 27,374 | |||
Allowance for off-balance sheet credit losses [Roll Forward] | |||||||
Beginning balance | 0 | 0 | 0 | 0 | |||
Provision for off-balance sheet credit losses | 0 | 0 | 0 | 0 | |||
Ending balance | 0 | 0 | 0 | 0 | |||
Total provision for credit losses | (4,503) | 47 | (6,745) | (826) | |||
Recorded investment [Abstract] | |||||||
Collectively measured for impairment, recorded investment | 0 | 0 | 0 | ||||
Individually measured for impairment, recorded investment | 0 | 0 | 0 | ||||
Total | 0 | 0 | 0 | ||||
Related allowance [Abstract] | |||||||
Collectively measured for impairment, related allowance | 0 | 0 | 0 | ||||
Individually measured for impairment, related allowance | 0 | 0 | 0 | ||||
Total | $ 19,975 | $ 27,327 | $ 22,217 | $ 28,200 | $ 15,472 | $ 22,217 | $ 27,374 |
Loans and Allowances for Cred45
Loans and Allowances for Credit Losses, Credit Quality Indicators (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 |
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | $ 16,203,838 | $ 15,297,889 | $ 15,341,394 | |||
Non-Graded, Recorded Investment | 1,799,858 | 1,855,535 | 1,842,251 | |||
Total | 18,003,696 | 17,153,424 | 17,183,645 | |||
Related Allowance [Abstract] | ||||||
Internally Risk Graded, Allowance | 181,303 | 189,412 | 204,117 | |||
Non-Graded, Allowance | 18,367 | 19,053 | 18,570 | |||
Total | 215,142 | $ 223,967 | 230,682 | 250,061 | $ 248,710 | $ 246,159 |
Commercial | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 11,323,917 | 10,706,035 | 10,612,477 | |||
Non-Graded, Recorded Investment | 25,122 | 27,940 | 25,478 | |||
Total | 11,349,039 | 10,733,975 | 10,637,955 | |||
Related Allowance [Abstract] | ||||||
Internally Risk Graded, Allowance | 112,842 | 123,383 | 136,819 | |||
Non-Graded, Allowance | 880 | 886 | 923 | |||
Total | 113,722 | 120,083 | 124,269 | 137,742 | 137,616 | 140,213 |
Commercial | Energy [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 3,147,219 | 2,930,156 | 2,847,240 | |||
Commercial | Services [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 2,944,499 | 2,986,949 | 2,958,827 | |||
Commercial | Wholesale/retail [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 1,699,554 | 1,471,256 | 1,543,695 | |||
Commercial | Manufacturing [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 647,816 | 496,774 | 546,137 | |||
Commercial | Healthcare [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 2,353,722 | 2,314,753 | 2,221,518 | |||
Commercial | Other commercial and industrial [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 556,229 | 534,087 | 520,538 | |||
Commercial real estate | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 3,712,220 | 3,479,987 | 3,688,592 | |||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Total | 3,712,220 | 3,479,987 | 3,688,592 | |||
Related Allowance [Abstract] | ||||||
Internally Risk Graded, Allowance | 58,758 | 56,621 | 58,580 | |||
Non-Graded, Allowance | 0 | 0 | 0 | |||
Total | 58,758 | 57,070 | 56,621 | 58,580 | 58,343 | 50,749 |
Commercial real estate | Residential construction and land development [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 118,999 | 117,245 | 141,592 | |||
Commercial real estate | Retail [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 768,024 | 691,532 | 722,805 | |||
Commercial real estate | Office [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 820,127 | 831,770 | 862,973 | |||
Commercial real estate | Multifamily [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 1,056,984 | 980,017 | 952,380 | |||
Commercial real estate | Industrial [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 653,384 | 573,014 | 693,635 | |||
Commercial real estate | Other commercial real estate [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 294,702 | 286,409 | 315,207 | |||
Residential mortgage | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 250,081 | 234,477 | 216,007 | |||
Non-Graded, Recorded Investment | 1,692,169 | 1,739,209 | 1,723,191 | |||
Total | 1,942,250 | 1,973,686 | 1,939,198 | |||
Related Allowance [Abstract] | ||||||
Internally Risk Graded, Allowance | 3,082 | 2,947 | 2,976 | |||
Non-Graded, Allowance | 15,462 | 15,504 | 15,283 | |||
Total | 18,544 | 18,431 | 18,451 | 18,259 | 18,177 | 18,224 |
Residential mortgage | Permanent mortgage [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 1,068,412 | 1,043,435 | 989,040 | |||
Residential mortgage | Permanent mortgages guaranteed by US government agencies [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 169,653 | 197,506 | 191,729 | |||
Residential mortgage | Home equity [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Total | 704,185 | 732,745 | 758,429 | |||
Personal | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 917,620 | 877,390 | 824,318 | |||
Non-Graded, Recorded Investment | 82,567 | 88,386 | 93,582 | |||
Total | 1,000,187 | 965,776 | 917,900 | |||
Related Allowance [Abstract] | ||||||
Internally Risk Graded, Allowance | 6,621 | 6,461 | 5,742 | |||
Non-Graded, Allowance | 2,025 | 2,663 | 2,364 | |||
Total | 8,646 | 8,408 | 9,124 | 8,106 | 7,247 | 8,773 |
Specific Allowance [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 16,203,838 | 15,297,889 | 15,341,394 | |||
Non-Graded, Recorded Investment | 1,799,858 | 1,855,535 | 1,842,251 | |||
Total | 18,003,696 | 17,153,424 | 17,183,645 | |||
Related Allowance [Abstract] | ||||||
Internally Risk Graded, Allowance | 181,303 | 189,412 | 204,117 | |||
Non-Graded, Allowance | 18,367 | 19,053 | 18,570 | |||
Total | 199,670 | 208,465 | 222,687 | |||
Nonspecific Allowance [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 0 | |||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Total | 0 | 0 | 0 | |||
Related Allowance [Abstract] | ||||||
Internally Risk Graded, Allowance | 0 | 0 | 0 | |||
Non-Graded, Allowance | 0 | 0 | 0 | |||
Total | 15,472 | $ 19,975 | 22,217 | 27,374 | $ 27,327 | $ 28,200 |
Performing [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 1,758,197 | 1,808,995 | 1,799,001 | |||
Performing [Member] | Commercial | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 25,009 | 27,870 | 25,374 | |||
Performing [Member] | Commercial | Energy [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Commercial | Services [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Commercial | Wholesale/retail [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Commercial | Manufacturing [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Commercial | Healthcare [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Commercial | Other commercial and industrial [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 25,009 | 27,870 | 25,374 | |||
Performing [Member] | Commercial real estate | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Commercial real estate | Residential construction and land development [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Commercial real estate | Retail [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Commercial real estate | Office [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Commercial real estate | Multifamily [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Commercial real estate | Industrial [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Commercial real estate | Other commercial real estate [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Residential mortgage | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 1,650,882 | 1,692,925 | 1,680,229 | |||
Performing [Member] | Residential mortgage | Permanent mortgage [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 796,282 | 784,928 | 750,891 | |||
Performing [Member] | Residential mortgage | Permanent mortgages guaranteed by US government agencies [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 162,086 | 188,327 | 182,677 | |||
Performing [Member] | Residential mortgage | Home equity [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 692,514 | 719,670 | 746,661 | |||
Performing [Member] | Personal | ||||||
Recorded Investment [Abstract] | ||||||
Non-Graded, Recorded Investment | 82,306 | 88,200 | 93,398 | |||
Performing [Member] | Pass [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 15,815,960 | 14,797,279 | 14,613,315 | |||
Performing [Member] | Pass [Member] | Commercial | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 10,971,935 | 10,226,089 | 9,902,434 | |||
Performing [Member] | Pass [Member] | Commercial | Energy [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 2,936,184 | 2,632,986 | 2,376,368 | |||
Performing [Member] | Pass [Member] | Commercial | Services [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 2,903,168 | 2,943,869 | 2,921,510 | |||
Performing [Member] | Pass [Member] | Commercial | Wholesale/retail [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 1,679,834 | 1,443,917 | 1,507,063 | |||
Performing [Member] | Pass [Member] | Commercial | Manufacturing [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 620,687 | 472,869 | 513,442 | |||
Performing [Member] | Pass [Member] | Commercial | Healthcare [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 2,319,035 | 2,253,497 | 2,130,339 | |||
Performing [Member] | Pass [Member] | Commercial | Other commercial and industrial [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 513,027 | 478,951 | 453,712 | |||
Performing [Member] | Pass [Member] | Commercial real estate | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 3,680,096 | 3,463,002 | 3,675,014 | |||
Performing [Member] | Pass [Member] | Commercial real estate | Residential construction and land development [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 116,821 | 113,190 | 138,790 | |||
Performing [Member] | Pass [Member] | Commercial real estate | Retail [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 745,691 | 686,915 | 720,730 | |||
Performing [Member] | Pass [Member] | Commercial real estate | Office [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 812,848 | 824,408 | 859,722 | |||
Performing [Member] | Pass [Member] | Commercial real estate | Multifamily [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 1,056,953 | 979,969 | 947,950 | |||
Performing [Member] | Pass [Member] | Commercial real estate | Industrial [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 653,384 | 573,014 | 693,635 | |||
Performing [Member] | Pass [Member] | Commercial real estate | Other commercial real estate [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 294,399 | 285,506 | 314,187 | |||
Performing [Member] | Pass [Member] | Residential mortgage | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 246,470 | 232,492 | 212,563 | |||
Performing [Member] | Pass [Member] | Residential mortgage | Permanent mortgage [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 246,470 | 232,492 | 212,563 | |||
Performing [Member] | Pass [Member] | Residential mortgage | Permanent mortgages guaranteed by US government agencies [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Pass [Member] | Residential mortgage | Home equity [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Pass [Member] | Personal | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 917,459 | 875,696 | 823,304 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 123,856 | 118,175 | 198,575 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Commercial | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 93,803 | 103,324 | 192,204 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Commercial | Energy [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 52,350 | 60,288 | 120,473 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Commercial | Services [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 30,564 | 13,927 | 12,452 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Commercial | Wholesale/retail [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 900 | 19,263 | 16,224 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Commercial | Manufacturing [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 7,559 | 6,653 | 6,540 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Commercial | Healthcare [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 2,030 | 3,186 | 33,554 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Commercial | Other commercial and industrial [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 400 | 7 | 2,961 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Commercial real estate | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 30,005 | 13,303 | 4,629 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Commercial real estate | Residential construction and land development [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 1,828 | 1,828 | 0 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Commercial real estate | Retail [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 21,173 | 4,243 | 1,774 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Commercial real estate | Office [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 7,004 | 7,087 | 2,855 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Commercial real estate | Multifamily [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Commercial real estate | Industrial [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Commercial real estate | Other commercial real estate [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 145 | 0 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Residential mortgage | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 1,693 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Residential mortgage | Permanent mortgage [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 1,693 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Residential mortgage | Permanent mortgages guaranteed by US government agencies [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Residential mortgage | Home equity [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Other Loans Especially Mentioned [Member] | Personal | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 48 | 1,548 | 49 | |||
Performing [Member] | Substandard [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 140,026 | 241,101 | 327,315 | |||
Performing [Member] | Substandard [Member] | Commercial | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 137,314 | 239,389 | 320,786 | |||
Performing [Member] | Substandard [Member] | Commercial | Energy [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 93,088 | 144,598 | 226,407 | |||
Performing [Member] | Substandard [Member] | Commercial | Services [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 6,390 | 26,533 | 17,111 | |||
Performing [Member] | Substandard [Member] | Commercial | Wholesale/retail [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 4,725 | 5,502 | 9,788 | |||
Performing [Member] | Substandard [Member] | Commercial | Manufacturing [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 16,579 | 11,290 | 16,499 | |||
Performing [Member] | Substandard [Member] | Commercial | Healthcare [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 16,532 | 43,305 | 33,120 | |||
Performing [Member] | Substandard [Member] | Commercial | Other commercial and industrial [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 8,161 | 17,861 | |||
Performing [Member] | Substandard [Member] | Commercial real estate | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 123 | 827 | 5,174 | |||
Performing [Member] | Substandard [Member] | Commercial real estate | Residential construction and land development [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 395 | 751 | |||
Performing [Member] | Substandard [Member] | Commercial real estate | Retail [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 92 | 98 | 0 | |||
Performing [Member] | Substandard [Member] | Commercial real estate | Office [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Substandard [Member] | Commercial real estate | Multifamily [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 31 | 48 | 4,420 | |||
Performing [Member] | Substandard [Member] | Commercial real estate | Industrial [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Substandard [Member] | Commercial real estate | Other commercial real estate [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 286 | 3 | |||
Performing [Member] | Substandard [Member] | Residential mortgage | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 2,555 | 822 | 478 | |||
Performing [Member] | Substandard [Member] | Residential mortgage | Permanent mortgage [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 2,555 | 822 | 478 | |||
Performing [Member] | Substandard [Member] | Residential mortgage | Permanent mortgages guaranteed by US government agencies [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Substandard [Member] | Residential mortgage | Home equity [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 0 | |||
Performing [Member] | Substandard [Member] | Personal | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 34 | 63 | 877 | |||
Nonaccrual [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 123,996 | 141,334 | 202,189 | |||
Non-Graded, Recorded Investment | 41,661 | 46,540 | 43,250 | |||
Nonaccrual [Member] | Commercial | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 120,865 | 137,233 | 197,053 | |||
Non-Graded, Recorded Investment | 113 | 70 | 104 | |||
Nonaccrual [Member] | Commercial | Energy [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 65,597 | 92,284 | 123,992 | |||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Nonaccrual [Member] | Commercial | Services [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 4,377 | 2,620 | 7,754 | |||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Nonaccrual [Member] | Commercial | Wholesale/retail [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 14,095 | 2,574 | 10,620 | |||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Nonaccrual [Member] | Commercial | Manufacturing [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 2,991 | 5,962 | 9,656 | |||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Nonaccrual [Member] | Commercial | Healthcare [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 16,125 | 14,765 | 24,505 | |||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Nonaccrual [Member] | Commercial | Other commercial and industrial [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 17,680 | 19,028 | 20,526 | |||
Non-Graded, Recorded Investment | 113 | 70 | 104 | |||
Nonaccrual [Member] | Commercial real estate | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 1,996 | 2,855 | 3,775 | |||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Nonaccrual [Member] | Commercial real estate | Residential construction and land development [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 350 | 1,832 | 2,051 | |||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Nonaccrual [Member] | Commercial real estate | Retail [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 1,068 | 276 | 301 | |||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Nonaccrual [Member] | Commercial real estate | Office [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 275 | 275 | 396 | |||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Nonaccrual [Member] | Commercial real estate | Multifamily [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 10 | |||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Nonaccrual [Member] | Commercial real estate | Industrial [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 0 | |||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Nonaccrual [Member] | Commercial real estate | Other commercial real estate [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 303 | 472 | 1,017 | |||
Non-Graded, Recorded Investment | 0 | 0 | 0 | |||
Nonaccrual [Member] | Residential mortgage | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 1,056 | 1,163 | 1,273 | |||
Non-Graded, Recorded Investment | 41,287 | 46,284 | 42,962 | |||
Nonaccrual [Member] | Residential mortgage | Permanent mortgage [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 1,056 | 1,163 | 1,273 | |||
Non-Graded, Recorded Investment | 22,049 | 24,030 | 22,142 | |||
Nonaccrual [Member] | Residential mortgage | Permanent mortgages guaranteed by US government agencies [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 0 | |||
Non-Graded, Recorded Investment | 7,567 | 9,179 | 9,052 | |||
Nonaccrual [Member] | Residential mortgage | Home equity [Member] | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 0 | 0 | 0 | |||
Non-Graded, Recorded Investment | 11,671 | 13,075 | 11,768 | |||
Nonaccrual [Member] | Personal | ||||||
Recorded Investment [Abstract] | ||||||
Internally Risk Graded, Recorded Investment | 79 | 83 | 88 | |||
Non-Graded, Recorded Investment | $ 261 | $ 186 | $ 184 |
Loans and Allowance for Credi46
Loans and Allowance for Credit Losses, Impaired Loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||||||||
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017 | ||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | $ 389,643 | $ 480,181 | $ 389,643 | $ 480,181 | $ 438,459 | |||||
Impaired loans, recorded investment, total | 327,743 | 428,116 | 327,743 | 428,116 | 376,201 | |||||
Impaired loans, recorded investment with no related allowance | 267,728 | 355,469 | 267,728 | 355,469 | 324,867 | |||||
Impaired loans, recorded investment with related allowance | 60,015 | 72,647 | 60,015 | 72,647 | 51,334 | |||||
Impaired loans, related allowance | 15,200 | 9,693 | 15,200 | 9,693 | 8,831 | |||||
Impaired loans, average recorded investment | 335,492 | 419,893 | 349,062 | 432,921 | ||||||
Impaired loans, interest income recognized | 1,896 | 2,328 | 4,050 | 4,523 | ||||||
Commercial | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 162,209 | 233,643 | 162,209 | 233,643 | 184,604 | |||||
Impaired loans, recorded investment, total | 120,978 | 197,157 | 120,978 | 197,157 | 137,303 | |||||
Impaired loans, recorded investment with no related allowance | 60,963 | 124,510 | 60,963 | 124,510 | 85,969 | |||||
Impaired loans, recorded investment with related allowance | 60,015 | 72,647 | 60,015 | 72,647 | 51,334 | |||||
Impaired loans, related allowance | 15,200 | 9,693 | 15,200 | 9,693 | 8,831 | |||||
Impaired loans, average recorded investment | 126,219 | 176,992 | 129,139 | 188,055 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Commercial | Energy [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 84,285 | 141,091 | 84,285 | 141,091 | 111,011 | |||||
Impaired loans, recorded investment, total | 65,597 | 123,992 | 65,597 | 123,992 | 92,284 | |||||
Impaired loans, recorded investment with no related allowance | 19,735 | 56,988 | 19,735 | 56,988 | 40,968 | |||||
Impaired loans, recorded investment with related allowance | 45,862 | 67,004 | 45,862 | 67,004 | 51,316 | |||||
Impaired loans, related allowance | 9,460 | 8,874 | 9,460 | 8,874 | 8,814 | |||||
Impaired loans, average recorded investment | 77,770 | 117,209 | 78,940 | 128,246 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Commercial | Services [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 7,211 | 11,209 | 7,211 | 11,209 | 5,324 | |||||
Impaired loans, recorded investment, total | 4,377 | 7,754 | 4,377 | 7,754 | 2,620 | |||||
Impaired loans, recorded investment with no related allowance | 4,296 | 7,754 | 4,296 | 7,754 | 2,620 | |||||
Impaired loans, recorded investment with related allowance | 81 | 0 | 81 | 0 | 0 | |||||
Impaired loans, related allowance | 79 | 0 | 79 | 0 | 0 | |||||
Impaired loans, average recorded investment | 3,243 | 7,734 | 3,498 | 7,964 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Commercial | Wholesale/retail [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 14,523 | 17,392 | 14,523 | 17,392 | 9,099 | |||||
Impaired loans, recorded investment, total | 14,095 | 10,620 | 14,095 | 10,620 | 2,574 | |||||
Impaired loans, recorded investment with no related allowance | 2,822 | 10,620 | 2,822 | 10,620 | 2,574 | |||||
Impaired loans, recorded investment with related allowance | 11,273 | 0 | 11,273 | 0 | 0 | |||||
Impaired loans, related allowance | 4,075 | 0 | 4,075 | 0 | 0 | |||||
Impaired loans, average recorded investment | 8,329 | 10,855 | 8,334 | 11,013 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Commercial | Manufacturing [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 2,995 | 10,223 | 2,995 | 10,223 | 6,073 | |||||
Impaired loans, recorded investment, total | 2,991 | 9,656 | 2,991 | 9,656 | 5,962 | |||||
Impaired loans, recorded investment with no related allowance | 2,734 | 9,656 | 2,734 | 9,656 | 5,962 | |||||
Impaired loans, recorded investment with related allowance | 257 | 0 | 257 | 0 | 0 | |||||
Impaired loans, related allowance | 257 | 0 | 257 | 0 | 0 | |||||
Impaired loans, average recorded investment | 2,996 | 7,781 | 4,476 | 7,293 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Commercial | Healthcare [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 26,212 | 24,795 | 26,212 | 24,795 | 25,140 | |||||
Impaired loans, recorded investment, total | 16,125 | 24,505 | 16,125 | 24,505 | 14,765 | |||||
Impaired loans, recorded investment with no related allowance | 13,583 | 18,883 | 13,583 | 18,883 | 14,765 | |||||
Impaired loans, recorded investment with related allowance | 2,542 | 5,622 | 2,542 | 5,622 | 0 | |||||
Impaired loans, related allowance | 1,329 | 802 | 1,329 | 802 | 0 | |||||
Impaired loans, average recorded investment | 15,734 | 12,707 | 15,445 | 12,665 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Commercial | Other commercial and industrial [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 26,983 | 28,933 | 26,983 | 28,933 | 27,957 | |||||
Impaired loans, recorded investment, total | 17,793 | 20,630 | 17,793 | 20,630 | 19,098 | |||||
Impaired loans, recorded investment with no related allowance | 17,793 | 20,609 | 17,793 | 20,609 | 19,080 | |||||
Impaired loans, recorded investment with related allowance | 0 | 21 | 0 | 21 | 18 | |||||
Impaired loans, related allowance | 0 | 17 | 0 | 17 | 17 | |||||
Impaired loans, average recorded investment | 18,147 | 20,706 | 18,446 | 20,874 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Commercial real estate | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 10,694 | 6,905 | 10,694 | 6,905 | 4,751 | |||||
Impaired loans, recorded investment, total | 1,996 | 3,775 | 1,996 | 3,775 | 2,855 | |||||
Impaired loans, recorded investment with no related allowance | 1,996 | 3,775 | 1,996 | 3,775 | 2,855 | |||||
Impaired loans, recorded investment with related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, average recorded investment | 2,234 | 4,125 | 2,425 | 4,648 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Commercial real estate | Residential construction and land development [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 1,764 | 3,676 | 1,764 | 3,676 | 3,285 | |||||
Impaired loans, recorded investment, total | 350 | 2,051 | 350 | 2,051 | 1,832 | |||||
Impaired loans, recorded investment with no related allowance | 350 | 2,051 | 350 | 2,051 | 1,832 | |||||
Impaired loans, recorded investment with related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, average recorded investment | 982 | 2,334 | 1,091 | 2,742 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Commercial real estate | Retail [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 8,134 | 518 | 8,134 | 518 | 509 | |||||
Impaired loans, recorded investment, total | 1,068 | 301 | 1,068 | 301 | 276 | |||||
Impaired loans, recorded investment with no related allowance | 1,068 | 301 | 1,068 | 301 | 276 | |||||
Impaired loans, recorded investment with related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, average recorded investment | 666 | 308 | 672 | 314 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Commercial real estate | Office [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 287 | 499 | 287 | 499 | 287 | |||||
Impaired loans, recorded investment, total | 275 | 396 | 275 | 396 | 275 | |||||
Impaired loans, recorded investment with no related allowance | 275 | 396 | 275 | 396 | 275 | |||||
Impaired loans, recorded investment with related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, average recorded investment | 275 | 404 | 275 | 411 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Commercial real estate | Multifamily [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 0 | 1,000 | 0 | 1,000 | 0 | |||||
Impaired loans, recorded investment, total | 0 | 10 | 0 | 10 | 0 | |||||
Impaired loans, recorded investment with no related allowance | 0 | 10 | 0 | 10 | 0 | |||||
Impaired loans, recorded investment with related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, average recorded investment | 0 | 17 | 0 | 24 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Commercial real estate | Industrial [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, recorded investment, total | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, recorded investment with no related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, recorded investment with related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, average recorded investment | 0 | 38 | 0 | 38 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Commercial real estate | Other commercial real estate [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 509 | 1,212 | 509 | 1,212 | 670 | |||||
Impaired loans, recorded investment, total | 303 | 1,017 | 303 | 1,017 | 472 | |||||
Impaired loans, recorded investment with no related allowance | 303 | 1,017 | 303 | 1,017 | 472 | |||||
Impaired loans, recorded investment with related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, average recorded investment | 311 | 1,024 | 387 | 1,119 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Residential mortgage | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 216,353 | 239,326 | 216,353 | 239,326 | 248,797 | |||||
Impaired loans, recorded investment, total | 204,429 | 226,912 | 204,429 | 226,912 | 235,774 | |||||
Impaired loans, recorded investment with no related allowance | 204,429 | 226,912 | 204,429 | 226,912 | 235,774 | |||||
Impaired loans, recorded investment with related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, average recorded investment | 206,699 | 238,523 | 217,193 | 239,937 | ||||||
Impaired loans, interest income recognized | 1,896 | 2,328 | 4,050 | 4,523 | ||||||
Residential mortgage | Permanent mortgage [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 28,402 | 28,603 | 28,402 | 28,603 | 30,435 | |||||
Impaired loans, recorded investment, total | 23,105 | 23,415 | 23,105 | 23,415 | 25,193 | |||||
Impaired loans, recorded investment with no related allowance | 23,105 | 23,415 | 23,105 | 23,415 | 25,193 | |||||
Impaired loans, recorded investment with related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, average recorded investment | 23,841 | 23,801 | 24,149 | 23,135 | ||||||
Impaired loans, interest income recognized | 322 | 307 | 628 | 598 | ||||||
Residential mortgage | Permanent mortgages guaranteed by US government agencies [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 174,589 | [1] | 197,659 | [2] | 174,589 | [1] | 197,659 | [2] | 203,814 | [3] |
Impaired loans, recorded investment, total | 169,653 | [1] | 191,729 | [2] | 169,653 | [1] | 191,729 | [2] | 197,506 | [3] |
Impaired loans, recorded investment with no related allowance | 169,653 | [1] | 191,729 | [2] | 169,653 | [1] | 191,729 | [2] | 197,506 | [3] |
Impaired loans, recorded investment with related allowance | 0 | [1] | 0 | [2] | 0 | [1] | 0 | [2] | 0 | [3] |
Impaired loans, related allowance | 0 | [1] | 0 | [2] | 0 | [1] | 0 | [2] | 0 | [3] |
Impaired loans, average recorded investment | 170,856 | [1] | 202,946 | [2] | 180,671 | [1] | 205,159 | [2] | ||
Impaired loans, interest income recognized | 1,574 | [1] | 2,021 | [2] | 3,422 | [1] | 3,925 | [2] | ||
Residential mortgage | Home equity [Member] | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 13,362 | 13,064 | 13,362 | 13,064 | 14,548 | |||||
Impaired loans, recorded investment, total | 11,671 | 11,768 | 11,671 | 11,768 | 13,075 | |||||
Impaired loans, recorded investment with no related allowance | 11,671 | 11,768 | 11,671 | 11,768 | 13,075 | |||||
Impaired loans, recorded investment with related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, average recorded investment | 12,002 | 11,776 | 12,373 | 11,643 | ||||||
Impaired loans, interest income recognized | 0 | 0 | 0 | 0 | ||||||
Personal | ||||||||||
Impaired loans [Abstract] | ||||||||||
Impaired loans, unpaid principal balance | 387 | 307 | 387 | 307 | 307 | |||||
Impaired loans, recorded investment, total | 340 | 272 | 340 | 272 | 269 | |||||
Impaired loans, recorded investment with no related allowance | 340 | 272 | 340 | 272 | 269 | |||||
Impaired loans, recorded investment with related allowance | 0 | 0 | 0 | 0 | 0 | |||||
Impaired loans, related allowance | 0 | 0 | 0 | 0 | $ 0 | |||||
Impaired loans, average recorded investment | 340 | 253 | 305 | 281 | ||||||
Impaired loans, interest income recognized | $ 0 | $ 0 | $ 0 | $ 0 | ||||||
[1] | All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At June 30, 2018, $7.6 million of these loans were nonaccruing and $162 million were accruing based on the guarantee by U.S. government agencies. | |||||||||
[2] | All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At June 30, 2017, $9.1 million of these loans were nonaccruing and $183 million were accruing based on the guarantee by U.S. government agencies. | |||||||||
[3] | All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At December 31, 2017, $9.2 million of these loans were nonaccruing and $188 million were accruing based on the guarantee by U.S. government agencies. |
Loans and Allowances for Cred47
Loans and Allowances for Credit Losses, Troubled Debt Restructurings (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | |||
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017 | |
Financing Receivable, Modifications [Line Items] | |||||
Troubled Debt Restructuring, Recorded Investment | $ 152,000 | $ 169,000 | $ 152,000 | $ 169,000 | $ 126,000 |
Troubled Debt Restructuring, Performing in Accordance With Modified Terms | 80,000 | 71,000 | 80,000 | 71,000 | 48,000 |
Financing Receivable, Modifications, Post-Modification Recorded Investment | 19,000 | 34,000 | 32,000 | 53,000 | |
Troubled Debt Restructuring, Charge-offs | 5,500 | 10 | 5,600 | 42 | |
Permanent mortgages guaranteed by US government agencies [Member] | Accruing [Member] | Residential mortgage | |||||
Financing Receivable, Modifications [Line Items] | |||||
Troubled Debt Restructuring, Recorded Investment | $ 75,000 | $ 81,000 | $ 75,000 | $ 81,000 | $ 74,000 |
Loans and Allowances for Cred48
Loans and Allowances for Credit Losses, By Aging Category (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017 | Jun. 30, 2017 |
Financing receivable, recorded investment, aging [Abstract] | |||
Current | $ 17,691,210 | $ 16,770,208 | $ 16,783,348 |
Nonaccrual | 165,657 | 187,874 | 245,439 |
Total | 18,003,696 | 17,153,424 | 17,183,645 |
Commercial | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 11,210,170 | 10,575,384 | 10,438,108 |
Nonaccrual | 120,978 | 137,303 | 197,157 |
Total | 11,349,039 | 10,733,975 | 10,637,955 |
Commercial | Energy [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 3,081,622 | 2,833,668 | 2,723,248 |
Nonaccrual | 65,597 | 92,284 | 123,992 |
Total | 3,147,219 | 2,930,156 | 2,847,240 |
Commercial | Services [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 2,937,699 | 2,983,222 | 2,949,562 |
Nonaccrual | 4,377 | 2,620 | 7,754 |
Total | 2,944,499 | 2,986,949 | 2,958,827 |
Commercial | Wholesale/retail [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 1,685,175 | 1,468,284 | 1,532,986 |
Nonaccrual | 14,095 | 2,574 | 10,620 |
Total | 1,699,554 | 1,471,256 | 1,543,695 |
Commercial | Manufacturing [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 644,825 | 490,739 | 536,481 |
Nonaccrual | 2,991 | 5,962 | 9,656 |
Total | 647,816 | 496,774 | 546,137 |
Commercial | Healthcare [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 2,322,580 | 2,284,770 | 2,196,088 |
Nonaccrual | 16,125 | 14,765 | 24,505 |
Total | 2,353,722 | 2,314,753 | 2,221,518 |
Commercial | Other commercial and industrial [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 538,269 | 514,701 | 499,743 |
Nonaccrual | 17,793 | 19,098 | 20,630 |
Total | 556,229 | 534,087 | 520,538 |
Commercial real estate | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 3,710,202 | 3,476,163 | 3,684,343 |
Nonaccrual | 1,996 | 2,855 | 3,775 |
Total | 3,712,220 | 3,479,987 | 3,688,592 |
Commercial real estate | Residential construction and land development [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 118,649 | 115,213 | 139,070 |
Nonaccrual | 350 | 1,832 | 2,051 |
Total | 118,999 | 117,245 | 141,592 |
Commercial real estate | Retail [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 766,956 | 691,256 | 722,504 |
Nonaccrual | 1,068 | 276 | 301 |
Total | 768,024 | 691,532 | 722,805 |
Commercial real estate | Office [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 819,852 | 831,118 | 862,577 |
Nonaccrual | 275 | 275 | 396 |
Total | 820,127 | 831,770 | 862,973 |
Commercial real estate | Multifamily [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 1,056,984 | 979,625 | 952,370 |
Nonaccrual | 0 | 0 | 10 |
Total | 1,056,984 | 980,017 | 952,380 |
Commercial real estate | Industrial [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 653,384 | 573,014 | 693,635 |
Nonaccrual | 0 | 0 | 0 |
Total | 653,384 | 573,014 | 693,635 |
Commercial real estate | Other commercial real estate [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 294,377 | 285,937 | 314,187 |
Nonaccrual | 303 | 472 | 1,017 |
Total | 294,702 | 286,409 | 315,207 |
Residential mortgage | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 1,771,319 | 1,754,287 | 1,744,045 |
Nonaccrual | 42,343 | 47,447 | 44,235 |
Total | 1,942,250 | 1,973,686 | 1,939,198 |
Residential mortgage | Permanent mortgage [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 1,041,859 | 1,014,588 | 962,443 |
Nonaccrual | 23,105 | 25,193 | 23,415 |
Total | 1,068,412 | 1,043,435 | 989,040 |
Residential mortgage | Permanent mortgages guaranteed by US government agencies [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 38,717 | 22,692 | 36,867 |
Nonaccrual | 7,567 | 9,179 | 9,052 |
Total | 169,653 | 197,506 | 191,729 |
Residential mortgage | Home equity [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 690,743 | 717,007 | 744,735 |
Nonaccrual | 11,671 | 13,075 | 11,768 |
Total | 704,185 | 732,745 | 758,429 |
Personal | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Current | 999,519 | 964,374 | 916,852 |
Nonaccrual | 340 | 269 | 272 |
Total | 1,000,187 | 965,776 | 917,900 |
30 to 59 Days [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 21,070 | 41,991 | 24,074 |
30 to 59 Days [Member] | Commercial | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 1,955 | 16,215 | 1,109 |
30 to 59 Days [Member] | Commercial | Energy [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
30 to 59 Days [Member] | Commercial | Services [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 1,619 | 514 | 50 |
30 to 59 Days [Member] | Commercial | Wholesale/retail [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 284 | 398 | 89 |
30 to 59 Days [Member] | Commercial | Manufacturing [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
30 to 59 Days [Member] | Commercial | Healthcare [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 15,218 | 925 |
30 to 59 Days [Member] | Commercial | Other commercial and industrial [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 52 | 85 | 45 |
30 to 59 Days [Member] | Commercial real estate | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 476 | 474 |
30 to 59 Days [Member] | Commercial real estate | Residential construction and land development [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 200 | 471 |
30 to 59 Days [Member] | Commercial real estate | Retail [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
30 to 59 Days [Member] | Commercial real estate | Office [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 254 | 0 |
30 to 59 Days [Member] | Commercial real estate | Multifamily [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 22 | 0 |
30 to 59 Days [Member] | Commercial real estate | Industrial [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
30 to 59 Days [Member] | Commercial real estate | Other commercial real estate [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 3 |
30 to 59 Days [Member] | Residential mortgage | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 18,937 | 24,619 | 22,004 |
30 to 59 Days [Member] | Residential mortgage | Permanent mortgage [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 2,568 | 3,435 | 2,024 |
30 to 59 Days [Member] | Residential mortgage | Permanent mortgages guaranteed by US government agencies [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 14,757 | 18,978 | 18,416 |
30 to 59 Days [Member] | Residential mortgage | Home equity [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 1,612 | 2,206 | 1,564 |
30 to 59 Days [Member] | Personal | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 178 | 681 | 487 |
60 to 89 Days [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 29,146 | 19,529 | 15,557 |
60 to 89 Days [Member] | Commercial | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 15,228 | 4,841 | 299 |
60 to 89 Days [Member] | Commercial | Energy [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 4,204 | 0 |
60 to 89 Days [Member] | Commercial | Services [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 106 | 486 | 180 |
60 to 89 Days [Member] | Commercial | Wholesale/retail [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
60 to 89 Days [Member] | Commercial | Manufacturing [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 73 | 0 |
60 to 89 Days [Member] | Commercial | Healthcare [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 15,017 | 0 | 0 |
60 to 89 Days [Member] | Commercial | Other commercial and industrial [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 105 | 78 | 119 |
60 to 89 Days [Member] | Commercial real estate | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 370 | 0 |
60 to 89 Days [Member] | Commercial real estate | Residential construction and land development [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
60 to 89 Days [Member] | Commercial real estate | Retail [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
60 to 89 Days [Member] | Commercial real estate | Office [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
60 to 89 Days [Member] | Commercial real estate | Multifamily [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 370 | 0 |
60 to 89 Days [Member] | Commercial real estate | Industrial [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
60 to 89 Days [Member] | Commercial real estate | Other commercial real estate [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
60 to 89 Days [Member] | Residential mortgage | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 13,768 | 14,127 | 14,969 |
60 to 89 Days [Member] | Residential mortgage | Permanent mortgage [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 796 | 219 | 1,026 |
60 to 89 Days [Member] | Residential mortgage | Permanent mortgages guaranteed by US government agencies [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 12,878 | 13,468 | 13,581 |
60 to 89 Days [Member] | Residential mortgage | Home equity [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 94 | 440 | 362 |
60 to 89 Days [Member] | Personal | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 150 | 191 | 289 |
90 Days or More [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 96,613 | 133,822 | 115,227 |
90 Days or More [Member] | Commercial | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 708 | 232 | 1,282 |
90 Days or More [Member] | Commercial | Energy [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
90 Days or More [Member] | Commercial | Services [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 698 | 107 | 1,281 |
90 Days or More [Member] | Commercial | Wholesale/retail [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
90 Days or More [Member] | Commercial | Manufacturing [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
90 Days or More [Member] | Commercial | Healthcare [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
90 Days or More [Member] | Commercial | Other commercial and industrial [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 10 | 125 | 1 |
90 Days or More [Member] | Commercial real estate | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 22 | 123 | 0 |
90 Days or More [Member] | Commercial real estate | Residential construction and land development [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
90 Days or More [Member] | Commercial real estate | Retail [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
90 Days or More [Member] | Commercial real estate | Office [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 123 | 0 |
90 Days or More [Member] | Commercial real estate | Multifamily [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
90 Days or More [Member] | Commercial real estate | Industrial [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 0 | 0 | 0 |
90 Days or More [Member] | Commercial real estate | Other commercial real estate [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 22 | 0 | 0 |
90 Days or More [Member] | Residential mortgage | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 95,883 | 133,206 | 113,945 |
90 Days or More [Member] | Residential mortgage | Permanent mortgage [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 84 | 0 | 132 |
90 Days or More [Member] | Residential mortgage | Permanent mortgages guaranteed by US government agencies [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 95,734 | 133,189 | 113,813 |
90 Days or More [Member] | Residential mortgage | Home equity [Member] | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | 65 | 17 | 0 |
90 Days or More [Member] | Personal | |||
Financing receivable, recorded investment, aging [Abstract] | |||
Past Due | $ 0 | $ 261 | $ 0 |
Acquisition Acquisitions (Detai
Acquisition Acquisitions (Details) | 3 Months Ended |
Jun. 30, 2018USD ($)shares | |
Cobiz Financial Inc. [Member] | |
Business Acquisition [Line Items] | |
Business Acquisition, Date of Acquisition Agreement | Jun. 18, 2018 |
Cobiz Financial Assets | $ 3,800,000,000 |
Number of BOKF Shares Given for Each Existing Cobiz Share | shares | 0.17 |
Amount of Cash Paid for Each Exisitng Share of Cobiz Stock | $ 5.70 |
Switchgrass Holdings LLC [Member] | |
Business Acquisition [Line Items] | |
Business Acquisition, Effective Date of Acquisition | May 1, 2018 |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred | $ 14,000,000 |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Goodwill | $ 6,100,000 |
Mortgage Banking Activities, Co
Mortgage Banking Activities, Components of Loans Held For Sale (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended | |
Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017 | |
Schedule of Residential Mortgage Loans Held For Sale [Line Items] | |||
Number of days for past due for loan to be considered nonperforming (in days) | 90 days | 90 days | 90 days |
Residential mortgage loans held for sale, nonperforming | $ 0 | $ 0 | $ 0 |
Credit losses recognized on residential mortgage loans held for sale | 0 | 0 | 0 |
Components of Residential Mortgage Loans Held for Sale [Abstract] | |||
Unpaid principal balance | 214,717 | 269,772 | 212,525 |
Residential mortgage loans held for sale, Fair value | 216,983 | 275,179 | 215,113 |
Total residential mortgage loans held for sale and mortgage loan commitments, net of forward sales contracts | $ 223,301 | $ 287,259 | $ 221,378 |
Residential Mortgage Loan Commitments [Member] | Not Designated as Hedging Instrument [Member] | |||
Schedule of Residential Mortgage Loans Held For Sale [Line Items] | |||
General number of days outstanding for residential mortgage commitments, minimum (in days) | 60 days | 60 days | 60 days |
General number of days outstanding for residential mortgage commitments, maximum (in days) | 90 days | 90 days | 90 days |
Components of Residential Mortgage Loans Held for Sale [Abstract] | |||
Notional | $ 251,231 | $ 362,088 | $ 222,919 |
Derivative, Net fair value | $ 7,473 | $ 10,993 | $ 6,523 |
Forward sales contracts [Member] | Not Designated as Hedging Instrument [Member] | |||
Schedule of Residential Mortgage Loans Held For Sale [Line Items] | |||
General number of days for delivery of loans, for which the price is set by forward sales contracts, minimum (in days) | 60 days | 60 days | 60 days |
General number of days for delivery for loans, for which the price is set by forward sales contracts, maximum (in days) | 90 days | 90 days | 90 days |
Components of Residential Mortgage Loans Held for Sale [Abstract] | |||
Notional | $ 440,735 | $ 587,595 | $ 380,159 |
Derivative, Net fair value | $ (1,155) | $ 1,087 | $ (258) |
Mortgage Banking Activities Mor
Mortgage Banking Activities Mortgage Banking Activities, Mortgage Banking Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | |
Mortgage Banking Revenue [Abstract] | ||||
Net realized gains on sale of mortgage loans | $ 10,718 | $ 11,787 | $ 19,636 | $ 20,402 |
Net change in unrealized gain on mortgage loans held for sale | 1,047 | 985 | (322) | 4,827 |
Net change in the fair value of mortgage loan commitments | (1,124) | (3,274) | 950 | 1,260 |
Net change in the fair value of forward sales contracts | (726) | 4,342 | (897) | (4,106) |
Total production revenue | 9,915 | 13,840 | 19,367 | 22,383 |
Servicing revenue | 16,431 | 16,436 | 33,004 | 33,084 |
Total mortgage banking revenue | $ 26,346 | $ 30,276 | $ 52,371 | $ 55,467 |
Mortgage Banking Activities, Mo
Mortgage Banking Activities, Mortgage Servicing Rights (Details) | 3 Months Ended | 6 Months Ended | ||||
Jun. 30, 2018USD ($) | Mar. 31, 2018USD ($) | Dec. 31, 2017USD ($) | Jun. 30, 2017USD ($) | Jun. 30, 2018USD ($) | Jun. 30, 2017USD ($) | |
Summary of Mortgage Servicing Rights [Abstract] | ||||||
Number of residential mortgage loans serviced for others | 134,868 | 136,528 | 138,335 | 134,868 | 138,335 | |
Outstanding principal balance of residential mortgage loans serviced for others | $ 21,963,309,000 | $ 22,046,632,000 | $ 22,095,232,000 | $ 21,963,309,000 | $ 22,095,232,000 | |
Weighted average interest rate | 3.96% | 3.94% | 3.95% | 3.96% | 3.95% | |
Remaining term (in months) | 295 months | 297 months | 299 months | |||
Servicing Asset at Fair Value, Amount [Roll Forward] | ||||||
Beginning balance | $ 274,978,000 | $ 252,867,000 | $ 249,403,000 | $ 252,867,000 | $ 247,073,000 | |
Additions, net | 10,820,000 | 11,078,000 | 19,720,000 | 19,514,000 | ||
Change in fair value due to principal payments | (8,802,000) | (8,299,000) | (16,797,000) | (16,261,000) | ||
Change in fair value due to market assumption changes | 1,723,000 | (6,943,000) | 22,929,000 | (5,087,000) | ||
Ending balance | $ 278,719,000 | $ 274,978,000 | $ 252,867,000 | $ 245,239,000 | $ 278,719,000 | $ 245,239,000 |
Servicing Assets at Fair Value, Assumptions Used to Estimate Fair Value [Abstract] | ||||||
Discount rate - risk-free rate plus a market premium (in hundredths) | 9.91% | 9.84% | 9.84% | |||
Prepayment rate - based upon loan interest rate, original term and loan type, minimum | 8.12% | 8.72% | 8.61% | |||
Prepayment rate - based upon loan interest rate, original term and loan type, maximum | 15.08% | 15.16% | 15.91% | |||
Loan servicing costs - annually per loan based upon loan type, performing, minimum (in dollars per loan) | $ 65 | $ 65 | $ 65 | |||
Loan servicing costs - annually per loan based upon loan type, performing, maximum (in dollars per loan) | 88 | 88 | 120 | |||
Loan servicing costs - annually per loan based upon loan type, delinquent, minimum (in dollars per loan) | 150 | 150 | 150 | |||
Loan servicing costs - annually per loan based upon loan type, delinquent, maximum (in dollars per loan) | 500 | 500 | 500 | |||
Loan servicing costs - annually per loan based upon loan type, foreclosure, minimum (in dollars per loan) | 1,000 | 1,000 | 1,000 | |||
Loan servicing costs - annually per loan based upon loan type, foreclosure, maximum (in dollars per loan) | $ 4,000 | $ 4,000 | $ 4,250 | |||
Escrow earnings rate - indexed to rates paid on deposit accounts with comparable average life (in hundredths) | 2.88% | 2.24% | 1.95% | |||
Primary secondary mortgage rate spread (in basis points) | 105 | 105 | 105 | 105 | 105 |
Mortgage Banking Activities M53
Mortgage Banking Activities Mortgage Banking Activities, Loans Serviced for Others (Details) $ in Thousands | Jun. 30, 2018USD ($) |
Financing Receivable, Recorded Investment, Aging [Abstract] | |
Current | $ 21,483,016 |
30 to 59 Days Past Due | 350,261 |
60 to 89 Days Past Due | 66,535 |
90 Days or More Past Due | 63,497 |
Total | 21,963,309 |
FHLMC [Member] | |
Financing Receivable, Recorded Investment, Aging [Abstract] | |
Current | 7,932,832 |
30 to 59 Days Past Due | 68,996 |
60 to 89 Days Past Due | 9,405 |
90 Days or More Past Due | 25,129 |
Total | 8,036,362 |
FNMA [Member] | |
Financing Receivable, Recorded Investment, Aging [Abstract] | |
Current | 6,491,492 |
30 to 59 Days Past Due | 77,424 |
60 to 89 Days Past Due | 9,118 |
90 Days or More Past Due | 20,918 |
Total | 6,598,952 |
GNMA [Member] | |
Financing Receivable, Recorded Investment, Aging [Abstract] | |
Current | 6,624,862 |
30 to 59 Days Past Due | 198,852 |
60 to 89 Days Past Due | 47,791 |
90 Days or More Past Due | 15,204 |
Total | 6,886,709 |
Other [Member] | |
Financing Receivable, Recorded Investment, Aging [Abstract] | |
Current | 433,830 |
30 to 59 Days Past Due | 4,989 |
60 to 89 Days Past Due | 221 |
90 Days or More Past Due | 2,246 |
Total | $ 441,286 |
Commitments and Contingent Li54
Commitments and Contingent Liabilities (Details) | 6 Months Ended |
Jun. 30, 2018USD ($)shares | |
BOKF Equity, LLC [Member] | |
Litigation Settlement [Abstract] | |
Number of Private Equity Funds of which the Entity is a General Partner | 2 |
Contingent Obligations For Additional Investments in Private Equity Funds | $ 3,400,000 |
Judicial Ruling [Member] | Misuse of Revenues Pledged to Municipal Bonds [Member] | |
Litigation Settlement [Abstract] | |
Outstanding principal, accrued interest and other amounts required by bond documents | 40,000,000 |
Disgorged fees | 1,067,721 |
Litigation Settlement, Amount Awarded to Other Party | $ 600,000 |
Pending Litigation [Member] | Misuse of Revenues Pledged to Municipal Bonds [Member] | |
Litigation Settlement [Abstract] | |
Loss Contingency, Number of Plaintiffs | 2 |
Alleged total of judgment against nursing home operator | $ 8,000,000 |
Pending Litigation [Member] | Bank Participation in Fraudulent Sale of Securities by Principals [Member] | |
Litigation Settlement [Abstract] | |
Loss Contingency, Number of Plaintiffs | 19 |
Pending Litigation [Member] | Purchase of facilities from principals subject to SEC New Jersey proceedings [Member] | |
Litigation Settlement [Abstract] | |
Outstanding principal, accrued interest and other amounts required by bond documents | $ 60,000,000 |
Number of individuals who purchased facilities from the principals subject to SEC New Jersey proceedings | 2 |
Number of principals in SEC New Jersey proceedings | 2 |
Visa Membership [Member] | |
Loss Contingencies [Line Items] | |
Number of Visa Class B Shares Owned by Entity (in shares) | shares | 252,233 |
Number of Visa Class A Shares Visa Class B Shares Are Convertible To (in shares) | shares | 411,089 |
Commitments and Contingent Li55
Commitments and Contingent Liabilities Variable Interest Entities (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017 | Jun. 30, 2017 |
Loans Receivable [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | $ 10,000 | $ 10,000 | $ 10,000 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | 62,188 | 52,852 | 59,744 |
Loans Receivable [Member] | Private equity funds [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 0 | 0 | 0 |
Loans Receivable [Member] | Tax credit entities [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 10,000 | 10,000 | 10,000 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | 62,188 | 52,852 | 59,744 |
Loans Receivable [Member] | Other [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 0 | 0 | 0 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | 0 | 0 | 0 |
Other Assets [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 42,722 | 26,787 | 44,073 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | 192,141 | 191,903 | 181,680 |
Other Assets [Member] | Private equity funds [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 14,150 | 14,783 | 16,905 |
Other Assets [Member] | Tax credit entities [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 10,964 | 10,964 | 11,274 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | 147,071 | 153,506 | 148,525 |
Other Assets [Member] | Other [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 17,608 | 1,040 | 15,894 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | 45,070 | 38,397 | 33,155 |
Other Liabilities [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 1,871 | 0 | 1,621 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | 69,258 | 70,827 | 77,502 |
Other Liabilities [Member] | Private equity funds [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 0 | 0 | 0 |
Other Liabilities [Member] | Tax credit entities [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 0 | 0 | 0 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | 49,472 | 47,859 | 63,822 |
Other Liabilities [Member] | Other [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 1,871 | 0 | 1,621 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | 19,786 | 22,968 | 13,680 |
Other borrowings [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 10,964 | 10,964 | 11,842 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | 0 | 0 | 0 |
Other borrowings [Member] | Private equity funds [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 0 | 0 | 0 |
Other borrowings [Member] | Tax credit entities [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 10,964 | 10,964 | 10,964 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | 0 | 0 | 0 |
Other borrowings [Member] | Other [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 0 | 0 | 878 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | 0 | 0 | 0 |
Non-Controlling Interests [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 22,614 | 22,967 | 27,076 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | 0 | 0 | 0 |
Non-Controlling Interests [Member] | Private equity funds [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 10,747 | 11,927 | 14,199 |
Non-Controlling Interests [Member] | Tax credit entities [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 10,000 | 10,000 | 10,000 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | 0 | 0 | 0 |
Non-Controlling Interests [Member] | Other [Member] | |||
Variable Interest Entity [Line Items] | |||
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net | 1,867 | 1,040 | 2,877 |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | $ 0 | $ 0 | $ 0 |
Shareholders' Equity (Details)
Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands | Jul. 24, 2018 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017 | ||
Dividends declared (in dollars per share) | $ 0.45 | $ 0.44 | $ 0.90 | $ 0.88 | ||||
Schedule of Accumulated Other Income (Loss) [Abstract] | ||||||||
Balance, Beginning of Period | $ (36,174) | $ (10,967) | ||||||
Transition adjustment for unrealized gains and losses on equity securities | $ (2,709) | |||||||
Net change in unrealized gain (loss) | $ (33,117) | $ 21,958 | (130,523) | 33,369 | ||||
Reclassification adjustments included in earnings: | ||||||||
Loss (gain) on available for sale securities, net | 762 | (380) | 1,052 | (2,429) | ||||
Other comprehensive income (loss), before income taxes | (32,355) | 21,578 | (129,471) | 30,940 | ||||
Federal and state income taxes | (8,241) | 8,393 | (33,049) | [1] | 12,009 | [2] | ||
Other comprehensive income (loss), net of income taxes | (24,114) | 13,185 | (96,422) | 18,931 | ||||
Balance, End of Period | (135,305) | 7,964 | (135,305) | 7,964 | ||||
Accumulated Net Unrealized Gain (Loss) on Available for Sale Securities [Member] | ||||||||
Schedule of Accumulated Other Income (Loss) [Abstract] | ||||||||
Balance, Beginning of Period | (35,385) | (9,087) | ||||||
Transition adjustment for unrealized gains and losses on equity securities | (2,709) | |||||||
Net change in unrealized gain (loss) | (130,523) | 33,369 | ||||||
Reclassification adjustments included in earnings: | ||||||||
Loss (gain) on available for sale securities, net | 1,052 | (2,429) | ||||||
Other comprehensive income (loss), before income taxes | (129,471) | 30,940 | ||||||
Federal and state income taxes | (33,049) | [1] | 12,009 | [2] | ||||
Other comprehensive income (loss), net of income taxes | (96,422) | 18,931 | ||||||
Balance, End of Period | (134,516) | 9,844 | (134,516) | 9,844 | ||||
Accumulated Unrealized Gain (Loss) on Employee Benefit Plans [Member] | ||||||||
Schedule of Accumulated Other Income (Loss) [Abstract] | ||||||||
Balance, Beginning of Period | (789) | (1,880) | ||||||
Transition adjustment for unrealized gains and losses on equity securities | $ 0 | |||||||
Net change in unrealized gain (loss) | 0 | 0 | ||||||
Reclassification adjustments included in earnings: | ||||||||
Loss (gain) on available for sale securities, net | 0 | 0 | ||||||
Other comprehensive income (loss), before income taxes | 0 | 0 | ||||||
Federal and state income taxes | 0 | [1] | 0 | [2] | ||||
Other comprehensive income (loss), net of income taxes | 0 | 0 | ||||||
Balance, End of Period | $ (789) | $ (1,880) | $ (789) | $ (1,880) | ||||
Subsequent Event [Member] | ||||||||
Dividends Payable, Date Declared | Jul. 24, 2018 | |||||||
Dividends declared (in dollars per share) | $ 0.50 | |||||||
Dividends Payable, Date to be Paid | Aug. 27, 2018 | |||||||
Dividends Payable, Date of Record | Aug. 13, 2018 | |||||||
[1] | Calculated using a 25 percent blended federal and state statutory tax rate. | |||||||
[2] | Calculated using a 39 percent blended federal and state statutory tax rate. |
Earnings Per Share (Details)
Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | |
Numerator: [Abstract] | ||||
Net income attributable to BOK Financial Corp. shareholders | $ 114,372 | $ 88,147 | $ 219,934 | $ 176,503 |
Less: Earnings allocated to participating securities | 956 | 926 | 1,978 | 1,929 |
Numerator for basic earnings per share – income available to common shareholders | 113,416 | 87,221 | 217,956 | 174,574 |
Effect of reallocating undistributed earnings of participating securities | 1 | 1 | 1 | 1 |
Numerator for diluted earnings per share – income available to common shareholders | $ 113,417 | $ 87,222 | $ 217,957 | $ 174,575 |
Denominator: [Abstract] | ||||
Weighted average shares outstanding (in shares) | 65,448,035 | 65,416,274 | 65,463,671 | 65,436,909 |
Less: Participating securities included in weighted average shares (in shares) | 546,060 | 686,522 | 589,104 | 714,165 |
Denominator for basic earnings per common share (in shares) | 64,901,975 | 64,729,752 | 64,874,567 | 64,722,744 |
Dilutive effect of employee stock compensation plans (in shares) | 35,251 | 63,382 | 37,985 | 65,578 |
Denominator for diluted earnings per common share (in shares) | 64,937,226 | 64,793,134 | 64,912,552 | 64,788,322 |
Basic earnings per share (per share) | $ 1.75 | $ 1.35 | $ 3.36 | $ 2.70 |
Diluted earnings per share (per share) | $ 1.75 | $ 1.35 | $ 3.36 | $ 2.69 |
Excludes employee stock options with exercise prices greater than current market price. | 0 | 0 | 0 | 0 |
Reportable Segments (Details)
Reportable Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | |
Segment Reporting Information [Line Items] | ||||
Net interest revenue from external sources | $ 238,562 | $ 205,204 | $ 458,298 | $ 406,386 |
Net interest revenue (expense) from internal sources | 0 | 0 | 0 | 0 |
Net interest revenue | 238,562 | 205,204 | 458,298 | 406,386 |
Provision for credit losses | 0 | 0 | (5,000) | 0 |
Net interest revenue after provision for credit losses | 238,562 | 205,204 | 463,298 | 406,386 |
Other operating revenue | 156,399 | 182,252 | 312,388 | 352,548 |
Other operating expense | 246,476 | 250,885 | 490,906 | 495,596 |
Net direct contribution | 148,485 | 136,571 | 284,780 | 263,338 |
Gain (loss) on financial instruments, net | 0 | 0 | 0 | 0 |
Change in fair value of mortgage servicing rights | 0 | 0 | 0 | 0 |
Gain (loss) on repossessed assets, net | 0 | 0 | 0 | 0 |
Corporate expense allocations | 0 | 0 | 0 | 0 |
Net income before taxes | 148,485 | 136,571 | 284,780 | 263,338 |
Federal and state income taxes | 33,330 | 47,705 | 64,278 | 85,808 |
Net income | 115,155 | 88,866 | 220,502 | 177,530 |
Net income attributable to non-controlling interests | 783 | 719 | 568 | 1,027 |
Net income attributable to BOK Financial Corp. shareholders | 114,372 | 88,147 | 219,934 | 176,503 |
Average assets | 33,906,035 | 32,368,571 | 33,815,994 | 32,660,160 |
Operating Segments [Member] | Commercial [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Net interest revenue from external sources | 182,127 | 154,377 | 342,541 | 301,753 |
Net interest revenue (expense) from internal sources | (37,102) | (21,715) | (65,445) | (39,831) |
Net interest revenue | 145,025 | 132,662 | 277,096 | 261,922 |
Provision for credit losses | 10,108 | 1,228 | 10,735 | (236) |
Net interest revenue after provision for credit losses | 134,917 | 131,434 | 266,361 | 262,158 |
Other operating revenue | 43,047 | 56,353 | 82,722 | 103,198 |
Other operating expense | 47,483 | 59,511 | 93,950 | 112,416 |
Net direct contribution | 130,481 | 128,276 | 255,133 | 252,940 |
Gain (loss) on financial instruments, net | 9 | 3 | 16 | 41 |
Change in fair value of mortgage servicing rights | 0 | 0 | 0 | 0 |
Gain (loss) on repossessed assets, net | (67) | 1,403 | (4,232) | 1,398 |
Corporate expense allocations | 11,269 | 8,955 | 23,776 | 17,674 |
Net income before taxes | 119,154 | 120,727 | 227,141 | 236,705 |
Federal and state income taxes | 31,577 | 49,382 | 60,319 | 96,949 |
Net income | 87,577 | 71,345 | 166,822 | 139,756 |
Net income attributable to non-controlling interests | 0 | 0 | 0 | 0 |
Net income attributable to BOK Financial Corp. shareholders | 87,577 | 71,345 | 166,822 | 139,756 |
Average assets | 18,072,155 | 17,791,671 | 17,933,756 | 17,716,738 |
Operating Segments [Member] | Consumer [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Net interest revenue from external sources | 21,746 | 20,756 | 43,499 | 39,348 |
Net interest revenue (expense) from internal sources | 17,548 | 13,447 | 32,772 | 25,864 |
Net interest revenue | 39,294 | 34,203 | 76,271 | 65,212 |
Provision for credit losses | 1,139 | 926 | 2,440 | 2,199 |
Net interest revenue after provision for credit losses | 38,155 | 33,277 | 73,831 | 63,013 |
Other operating revenue | 46,320 | 50,744 | 91,269 | 95,879 |
Other operating expense | 55,906 | 55,125 | 105,760 | 107,991 |
Net direct contribution | 28,569 | 28,896 | 59,340 | 50,901 |
Gain (loss) on financial instruments, net | (6,411) | 5,224 | (29,672) | 3,557 |
Change in fair value of mortgage servicing rights | 1,723 | (6,943) | 22,929 | (5,087) |
Gain (loss) on repossessed assets, net | 174 | 98 | 66 | (39) |
Corporate expense allocations | 15,867 | 16,912 | 31,897 | 33,658 |
Net income before taxes | 8,188 | 10,363 | 20,766 | 15,674 |
Federal and state income taxes | 2,086 | 4,031 | 5,288 | 6,097 |
Net income | 6,102 | 6,332 | 15,478 | 9,577 |
Net income attributable to non-controlling interests | 0 | 0 | 0 | 0 |
Net income attributable to BOK Financial Corp. shareholders | 6,102 | 6,332 | 15,478 | 9,577 |
Average assets | 8,353,558 | 8,441,831 | 8,410,513 | 8,360,022 |
Operating Segments [Member] | Wealth Management [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Net interest revenue from external sources | 18,754 | 10,475 | 34,161 | 21,960 |
Net interest revenue (expense) from internal sources | 10,232 | 10,325 | 20,164 | 19,181 |
Net interest revenue | 28,986 | 20,800 | 54,325 | 41,141 |
Provision for credit losses | (105) | (92) | (153) | (53) |
Net interest revenue after provision for credit losses | 29,091 | 20,892 | 54,478 | 41,194 |
Other operating revenue | 70,642 | 75,569 | 145,409 | 149,727 |
Other operating expense | 61,491 | 60,616 | 124,295 | 121,025 |
Net direct contribution | 38,242 | 35,845 | 75,592 | 69,896 |
Gain (loss) on financial instruments, net | 0 | 0 | 0 | 0 |
Change in fair value of mortgage servicing rights | 0 | 0 | 0 | 0 |
Gain (loss) on repossessed assets, net | 0 | 0 | 0 | 0 |
Corporate expense allocations | 11,142 | 9,947 | 22,097 | 20,619 |
Net income before taxes | 27,100 | 25,898 | 53,495 | 49,277 |
Federal and state income taxes | 6,981 | 10,209 | 13,767 | 19,429 |
Net income | 20,119 | 15,689 | 39,728 | 29,848 |
Net income attributable to non-controlling interests | 0 | 0 | 0 | 0 |
Net income attributable to BOK Financial Corp. shareholders | 20,119 | 15,689 | 39,728 | 29,848 |
Average assets | 8,495,557 | 6,960,872 | 8,296,780 | 6,960,872 |
Funds Management and Other [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Net interest revenue from external sources | 15,935 | 19,596 | 38,097 | 43,325 |
Net interest revenue (expense) from internal sources | 9,322 | (2,057) | 12,509 | (5,214) |
Net interest revenue | 25,257 | 17,539 | 50,606 | 38,111 |
Provision for credit losses | (11,142) | (2,062) | (18,022) | (1,910) |
Net interest revenue after provision for credit losses | 36,399 | 19,601 | 68,628 | 40,021 |
Other operating revenue | (3,610) | (414) | (7,012) | 3,744 |
Other operating expense | 81,596 | 75,633 | 166,901 | 154,164 |
Net direct contribution | (48,807) | (56,446) | (105,285) | (110,399) |
Gain (loss) on financial instruments, net | 6,402 | (5,227) | 29,656 | (3,598) |
Change in fair value of mortgage servicing rights | (1,723) | 6,943 | (22,929) | 5,087 |
Gain (loss) on repossessed assets, net | (107) | (1,501) | 4,166 | (1,359) |
Corporate expense allocations | (38,278) | (35,814) | (77,770) | (71,951) |
Net income before taxes | (5,957) | (20,417) | (16,622) | (38,318) |
Federal and state income taxes | (7,314) | (15,917) | (15,096) | (36,667) |
Net income | 1,357 | (4,500) | (1,526) | (1,651) |
Net income attributable to non-controlling interests | 783 | 719 | 568 | 1,027 |
Net income attributable to BOK Financial Corp. shareholders | 574 | (5,219) | (2,094) | (2,678) |
Average assets | $ (1,015,235) | $ (825,803) | $ (825,055) | $ (377,472) |
Fees and Commissions Revenue 59
Fees and Commissions Revenue Fees and Commissions (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | |||
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | ||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | $ 157,853 | $ 177,482 | $ 316,839 | $ 341,836 | |
Fees and commissions revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 157,853 | 316,839 | |||
Fees and commission revenue not from contracts with customers | [1] | 54,151 | 110,893 | ||
Fees and commissions revenue from contracts with customers | [2] | 103,702 | 205,946 | ||
Brokerage and trading revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 26,488 | 57,136 | |||
Fees and commission revenue not from contracts with customers | [1] | 18,433 | 40,795 | ||
Fees and commissions revenue from contracts with customers | [2] | 8,055 | 16,341 | ||
Trading revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 6,338 | 16,732 | |||
Fees and commission revenue not from contracts with customers | [1] | 6,338 | 16,732 | ||
Fees and commissions revenue from contracts with customers | [2] | 0 | 0 | ||
Customer hedging revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 9,795 | 20,702 | |||
Fees and commission revenue not from contracts with customers | [1] | 9,795 | 20,702 | ||
Fees and commissions revenue from contracts with customers | [2] | 0 | 0 | ||
Retail brokerage revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 4,811 | 9,565 | |||
Fees and commission revenue not from contracts with customers | [1] | 0 | 0 | ||
Fees and commissions revenue from contracts with customers | [2] | 4,811 | 9,565 | ||
Investment banking revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 5,544 | 10,137 | |||
Fees and commission revenue not from contracts with customers | [1] | 2,300 | 3,361 | ||
Fees and commissions revenue from contracts with customers | [2] | 3,244 | 6,776 | ||
Transaction card revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 20,975 | 41,965 | |||
Fees and commission revenue not from contracts with customers | [1] | 0 | 0 | ||
Fees and commissions revenue from contracts with customers | [2] | 20,975 | 41,965 | ||
TransFund EFT network revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 19,038 | 38,209 | |||
Fees and commission revenue not from contracts with customers | [1] | 0 | 0 | ||
Fees and commissions revenue from contracts with customers | [2] | 19,038 | 38,209 | ||
Merchant services revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 1,937 | 3,756 | |||
Fees and commission revenue not from contracts with customers | [1] | 0 | 0 | ||
Fees and commissions revenue from contracts with customers | [2] | 1,937 | 3,756 | ||
Fiduciary and asset management revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 41,699 | 83,531 | |||
Fees and commission revenue not from contracts with customers | [1] | 0 | 0 | ||
Fees and commissions revenue from contracts with customers | [2] | 41,699 | 83,531 | ||
Personal trust revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 20,558 | 40,658 | |||
Fees and commission revenue not from contracts with customers | [1] | 0 | 0 | ||
Fees and commissions revenue from contracts with customers | [2] | 20,558 | 40,658 | ||
Corporate trust revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 4,935 | 10,576 | |||
Fees and commission revenue not from contracts with customers | [1] | 0 | 0 | ||
Fees and commissions revenue from contracts with customers | [2] | 4,935 | 10,576 | ||
Institutional trust & retirement plan services revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 11,039 | 22,489 | |||
Fees and commission revenue not from contracts with customers | [1] | 0 | 0 | ||
Fees and commissions revenue from contracts with customers | [2] | 11,039 | 22,489 | ||
Investment management services and other [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 5,167 | 9,808 | |||
Fees and commission revenue not from contracts with customers | [1] | 0 | 0 | ||
Fees and commissions revenue from contracts with customers | [2] | 5,167 | 9,808 | ||
Deposit service charges and fees [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 27,827 | 54,988 | |||
Fees and commission revenue not from contracts with customers | [1] | 0 | 0 | ||
Fees and commissions revenue from contracts with customers | [2] | 27,827 | 54,988 | ||
Commercial account service charge revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 11,884 | 23,792 | |||
Fees and commission revenue not from contracts with customers | [1] | 0 | 0 | ||
Fees and commissions revenue from contracts with customers | [2] | 11,884 | 23,792 | ||
Overdraft fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 8,905 | 17,516 | |||
Fees and commission revenue not from contracts with customers | [1] | 0 | 0 | ||
Fees and commissions revenue from contracts with customers | [2] | 8,905 | 17,516 | ||
Check card fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 5,343 | 10,261 | |||
Fees and commission revenue not from contracts with customers | [1] | 0 | 0 | ||
Fees and commissions revenue from contracts with customers | [2] | 5,343 | 10,261 | ||
Automated service charge and other deposit fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 1,695 | 3,419 | |||
Fees and commission revenue not from contracts with customers | [1] | 0 | 0 | ||
Fees and commissions revenue from contracts with customers | [2] | 1,695 | 3,419 | ||
Mortgage banking revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 26,346 | 52,371 | |||
Fees and commission revenue not from contracts with customers | [1] | 26,346 | 52,371 | ||
Fees and commissions revenue from contracts with customers | [2] | 0 | 0 | ||
Mortgage production revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 9,915 | 19,367 | |||
Fees and commission revenue not from contracts with customers | [1] | 9,915 | 19,367 | ||
Fees and commissions revenue from contracts with customers | [2] | 0 | 0 | ||
Mortgage servicing revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 16,431 | 33,004 | |||
Fees and commission revenue not from contracts with customers | [1] | 16,431 | 33,004 | ||
Fees and commissions revenue from contracts with customers | [2] | 0 | 0 | ||
Other revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 14,518 | 26,848 | |||
Fees and commission revenue not from contracts with customers | [1] | 9,372 | 17,727 | ||
Fees and commissions revenue from contracts with customers | [2] | 5,146 | 9,121 | ||
Operating Segments [Member] | Commercial [Member] | Fees and commissions revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 42,874 | 82,891 | |||
Operating Segments [Member] | Commercial [Member] | Brokerage and trading revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 5,795 | 8,878 | |||
Operating Segments [Member] | Commercial [Member] | Trading revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Commercial [Member] | Customer hedging revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 2,892 | 4,914 | |||
Operating Segments [Member] | Commercial [Member] | Retail brokerage revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Commercial [Member] | Investment banking revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 2,903 | 3,964 | |||
Operating Segments [Member] | Commercial [Member] | Transaction card revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 19,969 | 39,975 | |||
Operating Segments [Member] | Commercial [Member] | TransFund EFT network revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 18,048 | 36,250 | |||
Operating Segments [Member] | Commercial [Member] | Merchant services revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 1,921 | 3,725 | |||
Operating Segments [Member] | Commercial [Member] | Fiduciary and asset management revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Commercial [Member] | Personal trust revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Commercial [Member] | Corporate trust revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Commercial [Member] | Institutional trust & retirement plan services revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Commercial [Member] | Investment management services and other [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Commercial [Member] | Deposit service charges and fees [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 11,048 | 22,119 | |||
Operating Segments [Member] | Commercial [Member] | Commercial account service charge revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 10,912 | 21,856 | |||
Operating Segments [Member] | Commercial [Member] | Overdraft fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 98 | 188 | |||
Operating Segments [Member] | Commercial [Member] | Check card fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Commercial [Member] | Automated service charge and other deposit fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 38 | 75 | |||
Operating Segments [Member] | Commercial [Member] | Mortgage banking revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Commercial [Member] | Mortgage production revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Commercial [Member] | Mortgage servicing revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Commercial [Member] | Other revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 6,062 | 11,919 | |||
Operating Segments [Member] | Consumer [Member] | Fees and commissions revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 46,332 | 91,296 | |||
Operating Segments [Member] | Consumer [Member] | Brokerage and trading revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Consumer [Member] | Trading revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Consumer [Member] | Customer hedging revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Consumer [Member] | Retail brokerage revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Consumer [Member] | Investment banking revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Consumer [Member] | Transaction card revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 1,025 | 2,027 | |||
Operating Segments [Member] | Consumer [Member] | TransFund EFT network revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 1,009 | 1,996 | |||
Operating Segments [Member] | Consumer [Member] | Merchant services revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 16 | 31 | |||
Operating Segments [Member] | Consumer [Member] | Fiduciary and asset management revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Consumer [Member] | Personal trust revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Consumer [Member] | Corporate trust revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Consumer [Member] | Institutional trust & retirement plan services revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Consumer [Member] | Investment management services and other [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Consumer [Member] | Deposit service charges and fees [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 16,106 | 31,526 | |||
Operating Segments [Member] | Consumer [Member] | Commercial account service charge revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 362 | 721 | |||
Operating Segments [Member] | Consumer [Member] | Overdraft fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 8,768 | 17,252 | |||
Operating Segments [Member] | Consumer [Member] | Check card fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 5,343 | 10,261 | |||
Operating Segments [Member] | Consumer [Member] | Automated service charge and other deposit fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 1,633 | 3,292 | |||
Operating Segments [Member] | Consumer [Member] | Mortgage banking revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 26,817 | 53,296 | |||
Operating Segments [Member] | Consumer [Member] | Mortgage production revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 9,915 | 19,367 | |||
Operating Segments [Member] | Consumer [Member] | Mortgage servicing revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 16,902 | 33,929 | |||
Operating Segments [Member] | Consumer [Member] | Other revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 2,384 | 4,447 | |||
Operating Segments [Member] | Wealth Management [Member] | Fees and commissions revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 70,489 | 145,296 | |||
Operating Segments [Member] | Wealth Management [Member] | Brokerage and trading revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 21,476 | 47,219 | |||
Operating Segments [Member] | Wealth Management [Member] | Trading revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 6,338 | 16,732 | |||
Operating Segments [Member] | Wealth Management [Member] | Customer hedging revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 7,611 | 14,576 | |||
Operating Segments [Member] | Wealth Management [Member] | Retail brokerage revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 4,886 | 9,738 | |||
Operating Segments [Member] | Wealth Management [Member] | Investment banking revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 2,641 | 6,173 | |||
Operating Segments [Member] | Wealth Management [Member] | Transaction card revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | (21) | (40) | |||
Operating Segments [Member] | Wealth Management [Member] | TransFund EFT network revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | (21) | (40) | |||
Operating Segments [Member] | Wealth Management [Member] | Merchant services revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Wealth Management [Member] | Fiduciary and asset management revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 41,749 | 83,629 | |||
Operating Segments [Member] | Wealth Management [Member] | Personal trust revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 20,558 | 40,658 | |||
Operating Segments [Member] | Wealth Management [Member] | Corporate trust revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 4,935 | 10,576 | |||
Operating Segments [Member] | Wealth Management [Member] | Institutional trust & retirement plan services revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 11,039 | 22,489 | |||
Operating Segments [Member] | Wealth Management [Member] | Investment management services and other [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 5,217 | 9,906 | |||
Operating Segments [Member] | Wealth Management [Member] | Deposit service charges and fees [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 666 | 1,331 | |||
Operating Segments [Member] | Wealth Management [Member] | Commercial account service charge revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 610 | 1,215 | |||
Operating Segments [Member] | Wealth Management [Member] | Overdraft fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 32 | 66 | |||
Operating Segments [Member] | Wealth Management [Member] | Check card fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Wealth Management [Member] | Automated service charge and other deposit fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 24 | 50 | |||
Operating Segments [Member] | Wealth Management [Member] | Mortgage banking revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Wealth Management [Member] | Mortgage production revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Wealth Management [Member] | Mortgage servicing revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Operating Segments [Member] | Wealth Management [Member] | Other revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 6,619 | 13,157 | |||
Funds Management and Other [Member] | Fees and commissions revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | (1,842) | (2,644) | |||
Funds Management and Other [Member] | Brokerage and trading revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | (783) | 1,039 | |||
Funds Management and Other [Member] | Trading revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Funds Management and Other [Member] | Customer hedging revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | (708) | 1,212 | |||
Funds Management and Other [Member] | Retail brokerage revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | (75) | (173) | |||
Funds Management and Other [Member] | Investment banking revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Funds Management and Other [Member] | Transaction card revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 2 | 3 | |||
Funds Management and Other [Member] | TransFund EFT network revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 2 | 3 | |||
Funds Management and Other [Member] | Merchant services revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Funds Management and Other [Member] | Fiduciary and asset management revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | (50) | (98) | |||
Funds Management and Other [Member] | Personal trust revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Funds Management and Other [Member] | Corporate trust revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Funds Management and Other [Member] | Institutional trust & retirement plan services revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Funds Management and Other [Member] | Investment management services and other [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | (50) | (98) | |||
Funds Management and Other [Member] | Deposit service charges and fees [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 7 | 12 | |||
Funds Management and Other [Member] | Commercial account service charge revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Funds Management and Other [Member] | Overdraft fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 7 | 10 | |||
Funds Management and Other [Member] | Check card fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Funds Management and Other [Member] | Automated service charge and other deposit fee revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 2 | |||
Funds Management and Other [Member] | Mortgage banking revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | (471) | (925) | |||
Funds Management and Other [Member] | Mortgage production revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | 0 | 0 | |||
Funds Management and Other [Member] | Mortgage servicing revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | (471) | (925) | |||
Funds Management and Other [Member] | Other revenue [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total fees and commissions | $ (547) | $ (2,675) | |||
[1] | Out of scope revenue generally relates to financial instruments or contractual rights and obligations within the scope of other applicable accounting guidance. | ||||
[2] | In scope revenue represents revenue subject to FASB ASC Topic 606, Revenue from Contracts with Customers. |
Fair Value Measurements, Fair V
Fair Value Measurements, Fair Value Of Financial Instruments as Measured On a Recurring Basis (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | |||
Assets: [Abstract] | |||||||||
Trading securities | $ 1,909,615 | $ 462,676 | $ 441,414 | ||||||
Available for sale securities | 8,162,866 | 8,321,578 | 8,341,041 | ||||||
Fair value option securities | 482,227 | 755,054 | 445,169 | ||||||
Mortgage servicing rights | 278,719 | $ 274,978 | 252,867 | 245,239 | $ 249,403 | $ 247,073 | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 373,373 | 220,502 | 280,289 | ||||||
Liabilities: [Abstract] | |||||||||
Derivative contracts, net of cash collateral, Liabilities, Fair Value | 234,856 | 171,963 | 285,819 | ||||||
U.S. government agency debentures | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 28,750 | 21,196 | 20,954 | ||||||
U.S. government agency residential mortgage-backed securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 1,605,001 | 392,673 | 365,171 | ||||||
Available for sale securities | 5,304,560 | 5,309,152 | 5,382,377 | ||||||
Fair value option securities | 482,227 | 755,054 | 445,169 | ||||||
Municipal and other tax-exempt securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 70,606 | 13,559 | 45,444 | ||||||
Available for sale securities | 10,697 | 27,080 | 32,765 | ||||||
Other trading securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 11,987 | 11,363 | 9,845 | ||||||
U.S. Treasury | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 490 | 1,000 | 998 | ||||||
Privately issued residential mortgage-backed securities | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 83,224 | 93,221 | 103,383 | ||||||
Commercial mortgage-backed securities guaranteed by U.S. government agencies | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 2,738,451 | 2,834,961 | 2,782,070 | ||||||
Other debt securities | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 25,444 | 25,481 | 4,152 | ||||||
Perpetual preferred stock | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 15,767 | 16,568 | |||||||
Equity securities and mutual funds | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 14,916 | 18,728 | |||||||
Fair Value, Measurements, Recurring [Member] | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 1,909,615 | 462,676 | 441,414 | ||||||
Available for sale securities | 8,162,866 | 8,321,578 | 8,341,041 | ||||||
Residential mortgage loans held for sale | 223,301 | 221,378 | 287,259 | ||||||
Mortgage servicing rights | 278,719 | [1] | 252,867 | [2] | 245,239 | [3] | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 373,373 | [4] | 220,502 | [5] | 280,289 | [6] | |||
Liabilities: [Abstract] | |||||||||
Derivative contracts, net of cash collateral, Liabilities, Fair Value | 234,856 | [4] | 171,963 | [5] | 285,819 | [6] | |||
Fair Value, Measurements, Recurring [Member] | U.S. government agency debentures | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 28,750 | 21,196 | 20,954 | ||||||
Fair Value, Measurements, Recurring [Member] | U.S. government agency residential mortgage-backed securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 1,605,001 | 392,673 | 365,171 | ||||||
Available for sale securities | 5,304,560 | 5,309,152 | 5,382,377 | ||||||
Fair value option securities | 482,227 | 755,054 | 445,169 | ||||||
Fair Value, Measurements, Recurring [Member] | Municipal and other tax-exempt securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 70,606 | 13,559 | 45,444 | ||||||
Available for sale securities | 10,697 | 27,080 | 32,765 | ||||||
Fair Value, Measurements, Recurring [Member] | Asset-backed securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 193,271 | 23,885 | |||||||
Fair Value, Measurements, Recurring [Member] | Other trading securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 11,987 | 11,363 | 9,845 | ||||||
Fair Value, Measurements, Recurring [Member] | U.S. Treasury | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 490 | 1,000 | 998 | ||||||
Fair Value, Measurements, Recurring [Member] | Privately issued residential mortgage-backed securities | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 83,224 | 93,221 | 103,383 | ||||||
Fair Value, Measurements, Recurring [Member] | Commercial mortgage-backed securities guaranteed by U.S. government agencies | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 2,738,451 | 2,834,961 | 2,782,070 | ||||||
Fair Value, Measurements, Recurring [Member] | Other debt securities | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 25,444 | 25,481 | 4,152 | ||||||
Fair Value, Measurements, Recurring [Member] | Perpetual preferred stock | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 15,767 | 16,568 | |||||||
Fair Value, Measurements, Recurring [Member] | Equity securities and mutual funds | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 14,916 | 18,728 | |||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 0 | 0 | 0 | ||||||
Available for sale securities | 490 | 1,000 | 4,514 | ||||||
Residential mortgage loans held for sale | 0 | 0 | 0 | ||||||
Mortgage servicing rights | 0 | [1] | 0 | [2] | 0 | [3] | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 21,056 | [4] | 8,179 | [5] | 46,366 | [6] | |||
Liabilities: [Abstract] | |||||||||
Derivative contracts, net of cash collateral, Liabilities, Fair Value | 17,214 | [4] | 0 | [5] | 20,915 | [6] | |||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. government agency debentures | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 0 | 0 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. government agency residential mortgage-backed securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 0 | 0 | 0 | ||||||
Available for sale securities | 0 | 0 | 0 | ||||||
Fair value option securities | 0 | 0 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Municipal and other tax-exempt securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 0 | 0 | 0 | ||||||
Available for sale securities | 0 | 0 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Asset-backed securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 0 | 0 | |||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Other trading securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 0 | 0 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. Treasury | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 490 | 1,000 | 998 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Privately issued residential mortgage-backed securities | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 0 | 0 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial mortgage-backed securities guaranteed by U.S. government agencies | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 0 | 0 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Other debt securities | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 0 | 0 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Perpetual preferred stock | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 0 | 0 | |||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Equity securities and mutual funds | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 0 | 3,516 | |||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 1,909,615 | 462,676 | 441,414 | ||||||
Available for sale securities | 8,159,875 | 8,315,304 | 8,327,720 | ||||||
Residential mortgage loans held for sale | 209,058 | 209,079 | 274,524 | ||||||
Mortgage servicing rights | 0 | [1] | 0 | [2] | 0 | [3] | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 352,317 | [4] | 212,323 | [5] | 233,923 | [6] | |||
Liabilities: [Abstract] | |||||||||
Derivative contracts, net of cash collateral, Liabilities, Fair Value | 217,642 | [4] | 171,963 | [5] | 264,904 | [6] | |||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. government agency debentures | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 28,750 | 21,196 | 20,954 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. government agency residential mortgage-backed securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 1,605,001 | 392,673 | 365,171 | ||||||
Available for sale securities | 5,304,560 | 5,309,152 | 5,382,377 | ||||||
Fair value option securities | 482,227 | 755,054 | 445,169 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Municipal and other tax-exempt securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 70,606 | 13,559 | 45,444 | ||||||
Available for sale securities | 8,667 | 22,278 | 28,110 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Asset-backed securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 193,271 | 23,885 | |||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other trading securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 11,987 | 11,363 | 9,845 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. Treasury | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 0 | 0 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Privately issued residential mortgage-backed securities | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 83,224 | 93,221 | 103,383 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial mortgage-backed securities guaranteed by U.S. government agencies | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 2,738,451 | 2,834,961 | 2,782,070 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other debt securities | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 24,973 | 25,009 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Perpetual preferred stock | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 15,767 | 16,568 | |||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Equity securities and mutual funds | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 14,916 | 15,212 | |||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 0 | 0 | 0 | ||||||
Available for sale securities | 2,501 | 5,274 | 8,807 | ||||||
Residential mortgage loans held for sale | 14,243 | 12,299 | 12,735 | ||||||
Mortgage servicing rights | 278,719 | [1] | 252,867 | [2] | 245,239 | [3] | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 0 | [4] | 0 | [5] | 0 | [6] | |||
Liabilities: [Abstract] | |||||||||
Derivative contracts, net of cash collateral, Liabilities, Fair Value | 0 | [4] | 0 | [5] | 0 | [6] | |||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | U.S. government agency debentures | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 0 | 0 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | U.S. government agency residential mortgage-backed securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 0 | 0 | 0 | ||||||
Available for sale securities | 0 | 0 | 0 | ||||||
Fair value option securities | 0 | 0 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Municipal and other tax-exempt securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 0 | 0 | 0 | ||||||
Available for sale securities | 2,030 | 4,802 | 4,655 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Asset-backed securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 0 | 0 | |||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Other trading securities | |||||||||
Assets: [Abstract] | |||||||||
Trading securities | 0 | 0 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | U.S. Treasury | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 0 | 0 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Privately issued residential mortgage-backed securities | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 0 | 0 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial mortgage-backed securities guaranteed by U.S. government agencies | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 0 | 0 | 0 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Other debt securities | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | $ 471 | 472 | 4,152 | ||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Perpetual preferred stock | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | 0 | 0 | |||||||
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Equity securities and mutual funds | |||||||||
Assets: [Abstract] | |||||||||
Available for sale securities | $ 0 | $ 0 | |||||||
[1] | A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6, Mortgage Banking Activities. | ||||||||
[2] | A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6, Mortgage Banking Activities. | ||||||||
[3] | A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 6, Mortgage Banking Activities. | ||||||||
[4] | See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts in asset positions that were valued based on quoted prices in active markets for identical instruments (Level 1) are primarily exchange-traded interest rate and agricultural derivative contacts, net of cah margin. Derivative contacts in liability positions that were valued using quoted prices in active markets for identical instruments are exchange-traded energy and interest rate derivative contracts, net of cash margin. | ||||||||
[5] | See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded interest rate, energy and agricultural derivative contacts. Derivative contracts in liability positions that were valued using quoted prices in active markets for identical instruments (Level 1) are exchange-traded interest rate and energy derivative contracts, fully offset by cash margin. | ||||||||
[6] | See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded energy and interest rate derivative contacts. Derivative contracts in liability positions that were valued using quoted prices in active markets for identical instruments (Level 1) are exchange-traded interest rate and agricultural derivative contracts, net cash margin. |
Fair Value Measurements, Measur
Fair Value Measurements, Measured On Recurring Basis Significant Unobservable Inputs (Details) - Fair Value, Measurements, Recurring [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||||||
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | |||||
Available-for-sale securities [Member] | Municipal and other tax-exempt securities | ||||||||
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward] | ||||||||
Balance, beginning of period | $ 1,891 | $ 5,722 | $ 4,802 | $ 5,789 | ||||
Transfer to Level 3 from Level 2 | 0 | [1] | 0 | [2] | 0 | [1] | 0 | [2] |
Purchases | 0 | 0 | 0 | 0 | ||||
Proceeds from sales | 0 | 0 | 0 | 0 | ||||
Redemptions and distributions | 0 | (1,100) | (3,045) | (1,100) | ||||
Other comprehensive income (loss) | 139 | 33 | 273 | (34) | ||||
Balance, end of period | 2,030 | 4,655 | 2,030 | 4,655 | ||||
Available-for-sale securities [Member] | Municipal and other tax-exempt securities | Mortgage banking revenue [Member] | ||||||||
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward] | ||||||||
Gain (loss) recognized in earnings | 0 | 0 | 0 | 0 | ||||
Available-for-sale securities [Member] | Other debt securities | ||||||||
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward] | ||||||||
Balance, beginning of period | 472 | 4,153 | 472 | 4,152 | ||||
Transfer to Level 3 from Level 2 | 0 | [1] | 0 | [2] | 0 | [1] | 0 | [2] |
Purchases | 0 | 0 | 0 | 0 | ||||
Proceeds from sales | 0 | 0 | 0 | 0 | ||||
Redemptions and distributions | 0 | 0 | 0 | 0 | ||||
Other comprehensive income (loss) | (1) | (1) | (1) | 0 | ||||
Balance, end of period | 471 | 4,152 | 471 | 4,152 | ||||
Available-for-sale securities [Member] | Other debt securities | Mortgage banking revenue [Member] | ||||||||
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward] | ||||||||
Gain (loss) recognized in earnings | 0 | 0 | 0 | 0 | ||||
Residential mortgage loans held for sale [Member] | ||||||||
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward] | ||||||||
Balance, beginning of period | 13,871 | 12,679 | 12,299 | 11,617 | ||||
Transfer to Level 3 from Level 2 | 687 | [1] | 853 | [2] | 2,843 | [1] | 2,740 | [2] |
Purchases | 0 | 0 | 0 | 0 | ||||
Proceeds from sales | (488) | (1,030) | (812) | (1,702) | ||||
Redemptions and distributions | 0 | 0 | 0 | 0 | ||||
Other comprehensive income (loss) | 0 | 0 | 0 | 0 | ||||
Balance, end of period | 14,243 | 12,735 | 14,243 | 12,735 | ||||
Residential mortgage loans held for sale [Member] | Mortgage banking revenue [Member] | ||||||||
Fair Value Assets Measured on Recurring Basis Unobservable Reconciliation [Roll Forward] | ||||||||
Gain (loss) recognized in earnings | $ 173 | $ 233 | $ (87) | $ 80 | ||||
[1] | 1 Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to meet conforming standards. | |||||||
[2] | 1 Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to meet conforming standards. |
Fair Value Measurements Fair Va
Fair Value Measurements Fair Value Measurements, Financial Instruments Measured On a Recurring Basis, Quantitative Information (Details) - Fair Value, Measurements, Recurring [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended | ||||
Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017 | ||||
Available-for-sale securities [Member] | Municipal and other tax-exempt securities | ||||||
Fair Value Inputs, Assets, Quantitative Information [Line Items] | ||||||
Fair Value Inputs, Asset, Par Value | $ 2,050 | $ 5,095 | $ 5,095 | |||
Fair Value Inputs, Asset, Amortized Cost/Unpaid Principal Balance | 2,033 | 5,067 | 5,068 | |||
Fair Value Inputs, Asset, Fair Value | $ 2,030 | $ 4,655 | $ 4,802 | |||
Fair Value Measurements, Valuation Techniques | Discounted cash flows | [1] | Discounted cash flows | [2] | Discounted cash flows | [3] |
Fair Value Measurements, Significant Unobservable Input | Interest rate spread | Interest rate spread | Interest rate spread | |||
Fair Value Inputs, Assets, Discount Rate, Minimum | 6.69% | [4] | 5.98% | [5] | 6.60% | [6] |
Fair Value Inputs, Assets, Discount Rate, Maximum | 6.69% | [4] | 5.98% | [5] | 6.60% | [6] |
Fair Value Inputs, Assets, Discount Rate, Weighted Average | 6.69% | [4] | 5.98% | [5] | 6.60% | [6] |
Fair Value Inputs, Assets, Fair Value As Percentage of Par Value, Minimum | 99.00% | [7] | 90.00% | [8] | 92.25% | [9] |
Fair Value Inputs, Assets, Fair Value As Percentage of Par Value, Maximum | 99.00% | [7] | 94.90% | [8] | 94.76% | [9] |
Fair Value Inputs, Fair Value As Percentage of Par Value, Weighted Average | 99.00% | [7] | 92.93% | [8] | 93.75% | [9] |
Investment Grade Tax Exempt Securities Yield Spread Over Comparable Securities Minimum | 413 | 360 | 372 | |||
Investment Grade Tax Exempt Securities Yield Spread Over Comparable Securities Maximum | 413 | 446 | 466 | |||
Available-for-sale securities [Member] | Other debt securities | ||||||
Fair Value Inputs, Assets, Quantitative Information [Line Items] | ||||||
Fair Value Inputs, Asset, Par Value | $ 500 | $ 4,400 | $ 500 | |||
Fair Value Inputs, Asset, Amortized Cost/Unpaid Principal Balance | 500 | 4,400 | 500 | |||
Fair Value Inputs, Asset, Fair Value | $ 471 | $ 4,152 | $ 472 | |||
Fair Value Measurements, Valuation Techniques | Discounted cash flows | [1] | Discounted cash flows | [2] | Discounted cash flows | [3] |
Fair Value Measurements, Significant Unobservable Input | Interest rate spread | Interest rate spread | Interest rate spread | |||
Fair Value Inputs, Assets, Discount Rate, Minimum | 6.32% | [10] | 5.41% | [11] | 6.85% | [12] |
Fair Value Inputs, Assets, Discount Rate, Maximum | 6.32% | [10] | 6.72% | [11] | 6.85% | [12] |
Fair Value Inputs, Assets, Discount Rate, Weighted Average | 6.32% | [10] | 6.57% | [11] | 6.85% | [12] |
Fair Value Inputs, Assets, Fair Value As Percentage of Par Value, Minimum | 94.36% | [7] | 94.31% | [8] | 94.39% | [9] |
Fair Value Inputs, Assets, Fair Value As Percentage of Par Value, Maximum | 94.36% | [7] | 94.38% | [8] | 94.39% | [9] |
Fair Value Inputs, Fair Value As Percentage of Par Value, Weighted Average | 94.36% | [7] | 94.37% | [8] | 94.39% | [9] |
Average Yields On Comparable Short-term Taxable Securities, Maximum | 3.00% | 3.00% | 3.00% | |||
Residential mortgage loans held for sale [Member] | ||||||
Fair Value Inputs, Assets, Quantitative Information [Line Items] | ||||||
Fair Value Inputs, Asset, Amortized Cost/Unpaid Principal Balance | $ 15,025 | $ 13,274 | $ 12,981 | |||
Fair Value Inputs, Asset, Fair Value | $ 14,252 | $ 12,735 | $ 12,299 | |||
Fair Value Measurements, Valuation Techniques | Quoted prices of loans sold in securitization transactions, with a liquidity discount applied | Quoted prices of loans sold in securitization transactions, with a liquidity discount applied | Quoted prices of loans sold in securitization transactions, with a liquidity discount applied | |||
Fair Value Measurements, Significant Unobservable Input | Liquidity discount applied to the market value of mortgage loans qualifying for sale to U.S. government agencies. | Liquidity discount applied to the market value of a mortgage loans qualifying for sale to U.S. government agencies. | Liquidity discount applied to the market value of mortgage loans qualifying for sale to U.S. government agencies. | |||
Liquidity Discount on Mortgage Loans Qualifying for Sale to US Govt Agencies | 94.86% | 95.94% | 94.75% | |||
[1] | Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume | |||||
[2] | Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume | |||||
[3] | Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume | |||||
[4] | Interest rate yields used to value investment grade tax-exempt securities represent a spread of 413 basis points over average yields for comparable tax-exempt securities. | |||||
[5] | Interest rate yields used to value investment grade tax-exempt securities represent a spread of 360 to 446 basis points over average yields for comparable tax-exempt securities. | |||||
[6] | Interest rate yields used to value investment grade tax-exempt securities represent a spread of 372 to 466 basis points over average yields for comparable tax-exempt securities. | |||||
[7] | Represents fair value as a percentage of par value. | |||||
[8] | Represents fair value as a percentage of par value. | |||||
[9] | Represents fair value as a percentage of par value. | |||||
[10] | Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 3 percent. | |||||
[11] | Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 3 percent. | |||||
[12] | Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 3 percent. |
Fair Value Measurements, Fair63
Fair Value Measurements, Fair Value Measured On a Nonrecurring Basis (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | |
Impaired Loans [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Gross charge-offs against allowance for loan losses | $ 6,701 | $ 232 | $ 7,198 | $ 676 |
Net losses and expenses of repossessed assets, net | 0 | 0 | 0 | 0 |
Real estate and other repossessed assets [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Gross charge-offs against allowance for loan losses | 0 | 0 | 0 | 0 |
Net losses and expenses of repossessed assets, net | 118 | 772 | 5,242 | 906 |
Fair Value, Inputs, Level 1 [Member] | Impaired Loans [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Carrying Value | 0 | 0 | 0 | 0 |
Fair Value, Inputs, Level 1 [Member] | Real estate and other repossessed assets [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Carrying Value | 0 | 0 | 0 | 0 |
Fair Value, Inputs, Level 2 [Member] | Impaired Loans [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Carrying Value | 1,045 | 464 | 1,045 | 464 |
Fair Value, Inputs, Level 2 [Member] | Real estate and other repossessed assets [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Carrying Value | 1,996 | 3,488 | 1,996 | 3,488 |
Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Carrying Value | 11,763 | 3,570 | 11,763 | 3,570 |
Fair Value, Inputs, Level 3 [Member] | Real estate and other repossessed assets [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Carrying Value | $ 6,838 | $ 530 | $ 6,838 | $ 530 |
Fair Value Measurements Fair 64
Fair Value Measurements Fair Value Measurement, Measured On Non-Recurring Basis, Signfiicant Unobservable Inputs, Quantitative Information (Details) - Fair Value, Measurements, Nonrecurring [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands | 3 Months Ended | |||
Jun. 30, 2018 | Jun. 30, 2017 | |||
Impaired Loans [Member] | ||||
Fair Value Inputs, Assets, Quantitative Information [Line Items] | ||||
Carrying Value | $ 11,763 | $ 3,570 | ||
Fair Value Measurements, Valuation Techniques | Discounted cash flows | Discounted cash flows | ||
Fair Value Measurements, Significant Unobservable Input | Management knowledge of industry and non-real estate collateral including but not limited to recoverable oil and gas reserves, forward-looking commodity prices, estimated operating costs | Recoverable oil and gas reserves, forward-looking commodity prices, estimated operating costs | ||
Fair Value of Impaired Loans as a Percentage of Unpaid Principal Balance [Abstract] | ||||
Fair Value Measurements, Fair Value of Impaired Loans as a Percentage of Unpaid Principal Balance, Minimum | [1] | 43.00% | 75.00% | |
Fair Value Measurements, Fair Value of Impaired Loans as a Percentage of Unpaid Principal Balance, Maximum | [1] | 84.00% | 90.00% | |
Fair Value of Impaired Loans as a Percentage of Unpaid Principal Balance, Weighted Average | [1] | 53.00% | 83.00% | |
Real estate and other repossessed assets [Member] | ||||
Fair Value Inputs, Assets, Quantitative Information [Line Items] | ||||
Carrying Value | $ 6,838 | $ 530 | ||
Fair Value Measurements, Valuation Techniques | Discounted cash flows | Appraised value, as adjusted | ||
Fair Value Measurements, Significant Unobservable Input | Recoverable oil and gas reserves, forward-looking commodity prices, estimated operating costs | Marketability adjustments off appraised value2 | [2] | |
Fair Value of Real Estate and Other Repossessed Assets as a Percentage of Appraised Value [Abstract] | ||||
Fair Value Measurement, Percentage of Appraised Value. Minimum | 65.00% | |||
Fair Value Measurement, Percentage of Appraised Value, Maximum | 88.00% | |||
Fair Value Measurement, Percentage of Appraised Value, Weighted Average | 80.00% | |||
[1] | Represents fair value as a percentage of the unpaid principal balance. | |||
[2] | Marketability adjustments include consideration of estimated costs to sell which is approximately 10% of the fair value. |
Fair Value Measurements, Financ
Fair Value Measurements, Financial Instruments (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | $ 1,909,615 | $ 462,676 | $ 441,414 | |||
Investment securities | 392,013 | 461,793 | 490,426 | |||
Available for sale securities | 8,162,866 | 8,321,578 | 8,341,041 | |||
Fair value option securities | 482,227 | 755,054 | 445,169 | |||
Residential mortgage loans held for sale | 223,301 | 221,378 | 287,259 | |||
Loans | 18,003,696 | 17,153,424 | 17,183,645 | |||
Allowance for loan losses | (215,142) | $ (223,967) | (230,682) | (250,061) | $ (248,710) | $ (246,159) |
Loans, net of allowance | 17,788,554 | 16,922,742 | 16,933,584 | |||
Mortgage servicing rights | 278,719 | 274,978 | 252,867 | 245,239 | 249,403 | 247,073 |
Derviative contracts, net of cash collateral, Assets, Fair value | 373,373 | 220,502 | 280,289 | |||
Time deposits | 2,127,732 | 2,098,416 | 2,196,122 | |||
Subordinated debentures | 144,697 | 144,677 | 144,658 | |||
Derivative contracts, net of cash collateral, Liabilities, Fair Value | 234,856 | 171,963 | 285,819 | |||
Commercial | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 11,349,039 | 10,733,975 | 10,637,955 | |||
Allowance for loan losses | (113,722) | (120,083) | (124,269) | (137,742) | (137,616) | (140,213) |
Commercial real estate | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 3,712,220 | 3,479,987 | 3,688,592 | |||
Allowance for loan losses | (58,758) | (57,070) | (56,621) | (58,580) | (58,343) | (50,749) |
Residential mortgage | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 1,942,250 | 1,973,686 | 1,939,198 | |||
Allowance for loan losses | (18,544) | (18,431) | (18,451) | (18,259) | (18,177) | (18,224) |
Personal | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 1,000,187 | 965,776 | 917,900 | |||
Allowance for loan losses | (8,646) | $ (8,408) | (9,124) | (8,106) | $ (7,247) | $ (8,773) |
U.S. government agency debentures | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 28,750 | 21,196 | 20,954 | |||
U.S. government agency residential mortgage-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 1,605,001 | 392,673 | 365,171 | |||
Investment securities | 13,989 | 15,891 | 18,035 | |||
Available for sale securities | 5,304,560 | 5,309,152 | 5,382,377 | |||
Fair value option securities | 482,227 | 755,054 | 445,169 | |||
Municipal and other tax-exempt securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 70,606 | 13,559 | 45,444 | |||
Investment securities | 173,097 | 228,186 | 267,375 | |||
Available for sale securities | 10,697 | 27,080 | 32,765 | |||
Other trading securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 11,987 | 11,363 | 9,845 | |||
U.S. Treasury | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 490 | 1,000 | 998 | |||
Privately issued residential mortgage-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 83,224 | 93,221 | 103,383 | |||
Commercial mortgage-backed securities guaranteed by U.S. government agencies | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 2,738,451 | 2,834,961 | 2,782,070 | |||
Other debt securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Investment securities | 204,927 | 217,716 | 205,016 | |||
Available for sale securities | 25,444 | 25,481 | 4,152 | |||
Perpetual preferred stock | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 15,767 | 16,568 | ||||
Equity securities and mutual funds | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 14,916 | 18,728 | ||||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Cash and due from banks | 585,801 | 602,510 | 561,587 | |||
Interest-bearing cash and cash equivalents | 872,999 | 1,714,544 | 2,078,831 | |||
Trading securities | 1,909,615 | 462,676 | 441,414 | |||
Investment securities | 392,013 | 461,793 | 490,426 | |||
Available for sale securities | 8,162,866 | 8,321,578 | 8,341,041 | |||
Residential mortgage loans held for sale | 223,301 | 221,378 | 287,259 | |||
Loans | 18,003,696 | 17,153,424 | 17,183,645 | |||
Allowance for loan losses | (215,142) | (230,682) | (250,061) | |||
Loans, net of allowance | 17,788,554 | 16,922,742 | 16,933,584 | |||
Mortgage servicing rights | 278,719 | 252,867 | 245,239 | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 373,373 | 220,502 | 280,289 | |||
Deposits with no stated maturity | 20,041,532 | 19,962,889 | 20,120,352 | |||
Time deposits | 2,127,732 | 2,098,416 | 2,196,122 | |||
Other borrowed funds | 6,809,472 | 5,709,861 | 5,696,666 | |||
Subordinated debentures | 144,697 | 144,677 | 144,658 | |||
Derivative contracts, net of cash collateral, Liabilities, Fair Value | 234,856 | 171,963 | 285,819 | |||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Commercial | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 11,349,039 | 10,733,975 | 10,637,955 | |||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Commercial real estate | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 3,712,220 | 3,479,987 | 3,688,592 | |||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Residential mortgage | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 1,942,250 | 1,973,686 | 1,939,198 | |||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Personal | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 1,000,187 | 965,776 | 917,900 | |||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | U.S. government agency debentures | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 28,750 | 21,196 | 20,954 | |||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | U.S. government agency residential mortgage-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 1,605,001 | 392,673 | 365,171 | |||
Investment securities | 13,989 | 15,891 | 18,035 | |||
Available for sale securities | 5,304,560 | 5,309,152 | 5,382,377 | |||
Fair value option securities | 482,227 | 755,054 | 445,169 | |||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Municipal and other tax-exempt securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 70,606 | 13,559 | 45,444 | |||
Investment securities | 173,097 | 228,186 | 267,375 | |||
Available for sale securities | 10,697 | 27,080 | 32,765 | |||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Asset-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 193,271 | 23,885 | ||||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Other trading securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 11,987 | 11,363 | 9,845 | |||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | U.S. Treasury | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 490 | 1,000 | 998 | |||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Privately issued residential mortgage-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 83,224 | 93,221 | 103,383 | |||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Commercial mortgage-backed securities guaranteed by U.S. government agencies | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 2,738,451 | 2,834,961 | 2,782,070 | |||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Other debt securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Investment securities | 204,927 | 217,716 | 205,016 | |||
Available for sale securities | 25,444 | 25,481 | 4,152 | |||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Perpetual preferred stock | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 15,767 | 16,568 | ||||
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Equity securities and mutual funds | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 14,916 | 18,728 | ||||
Estimate of Fair Value, Fair Value Disclosure [Member] | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Cash and due from banks | 585,801 | 602,510 | 561,587 | |||
Interest-bearing cash and cash equivalents | 872,999 | 1,714,544 | 2,078,831 | |||
Trading securities | 1,909,615 | 462,676 | 441,414 | |||
Investment securities | 403,384 | 480,035 | 515,675 | |||
Available for sale securities | 8,162,866 | 8,321,578 | 8,341,041 | |||
Residential mortgage loans held for sale | 223,301 | 221,378 | 287,259 | |||
Loans | 17,663,467 | 16,887,787 | 16,909,701 | |||
Allowance for loan losses | 0 | 0 | 0 | |||
Loans, net of allowance | 17,663,467 | 16,887,787 | 16,909,701 | |||
Mortgage servicing rights | 278,719 | 252,867 | 245,239 | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 373,373 | 220,502 | 280,289 | |||
Deposits with no stated maturity | 20,041,532 | 19,962,889 | 20,120,352 | |||
Time deposits | 2,078,486 | 2,064,558 | 2,164,115 | |||
Other borrowed funds | 6,571,762 | 5,703,121 | 5,664,273 | |||
Subordinated debentures | 148,112 | 148,207 | 147,204 | |||
Derivative contracts, net of cash collateral, Liabilities, Fair Value | 234,856 | 171,963 | 285,819 | |||
Estimate of Fair Value, Fair Value Disclosure [Member] | Commercial | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 11,116,828 | 10,524,627 | 10,413,704 | |||
Estimate of Fair Value, Fair Value Disclosure [Member] | Commercial real estate | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 3,639,121 | 3,428,733 | 3,636,365 | |||
Estimate of Fair Value, Fair Value Disclosure [Member] | Residential mortgage | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 1,917,099 | 1,977,721 | 1,950,577 | |||
Estimate of Fair Value, Fair Value Disclosure [Member] | Personal | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 990,419 | 956,706 | 909,055 | |||
Estimate of Fair Value, Fair Value Disclosure [Member] | U.S. government agency debentures | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 28,750 | 21,196 | 20,954 | |||
Estimate of Fair Value, Fair Value Disclosure [Member] | U.S. government agency residential mortgage-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 1,605,001 | 392,673 | 365,171 | |||
Investment securities | 13,984 | 16,242 | 18,642 | |||
Available for sale securities | 5,304,560 | 5,309,152 | 5,382,377 | |||
Fair value option securities | 482,227 | 755,054 | 445,169 | |||
Estimate of Fair Value, Fair Value Disclosure [Member] | Municipal and other tax-exempt securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 70,606 | 13,559 | 45,444 | |||
Investment securities | 174,205 | 230,349 | 270,531 | |||
Available for sale securities | 10,697 | 27,080 | 32,765 | |||
Estimate of Fair Value, Fair Value Disclosure [Member] | Asset-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 193,271 | 23,885 | ||||
Estimate of Fair Value, Fair Value Disclosure [Member] | Other trading securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 11,987 | 11,363 | 9,845 | |||
Estimate of Fair Value, Fair Value Disclosure [Member] | U.S. Treasury | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 490 | 1,000 | 998 | |||
Estimate of Fair Value, Fair Value Disclosure [Member] | Privately issued residential mortgage-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 83,224 | 93,221 | 103,383 | |||
Estimate of Fair Value, Fair Value Disclosure [Member] | Commercial mortgage-backed securities guaranteed by U.S. government agencies | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 2,738,451 | 2,834,961 | 2,782,070 | |||
Estimate of Fair Value, Fair Value Disclosure [Member] | Other debt securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Investment securities | 215,195 | 233,444 | 226,502 | |||
Available for sale securities | 25,444 | 25,481 | 4,152 | |||
Estimate of Fair Value, Fair Value Disclosure [Member] | Perpetual preferred stock | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 15,767 | 16,568 | ||||
Estimate of Fair Value, Fair Value Disclosure [Member] | Equity securities and mutual funds | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 14,916 | 18,728 | ||||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Cash and due from banks | 585,801 | 602,510 | 561,587 | |||
Interest-bearing cash and cash equivalents | 872,999 | 1,714,544 | 2,078,831 | |||
Trading securities | 0 | 0 | 0 | |||
Investment securities | 0 | 0 | 0 | |||
Available for sale securities | 490 | 1,000 | 4,514 | |||
Residential mortgage loans held for sale | 0 | 0 | 0 | |||
Loans | 0 | 0 | 0 | |||
Allowance for loan losses | 0 | 0 | 0 | |||
Loans, net of allowance | 0 | 0 | 0 | |||
Mortgage servicing rights | 0 | 0 | 0 | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 21,056 | 8,179 | 46,366 | |||
Deposits with no stated maturity | 0 | 0 | 0 | |||
Time deposits | 0 | 0 | 0 | |||
Other borrowed funds | 0 | 0 | 0 | |||
Subordinated debentures | 0 | 0 | 0 | |||
Derivative contracts, net of cash collateral, Liabilities, Fair Value | 17,214 | 0 | 20,915 | |||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Commercial | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Commercial real estate | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Residential mortgage | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Personal | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | U.S. government agency debentures | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | U.S. government agency residential mortgage-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 0 | 0 | 0 | |||
Investment securities | 0 | 0 | 0 | |||
Available for sale securities | 0 | 0 | 0 | |||
Fair value option securities | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Municipal and other tax-exempt securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 0 | 0 | 0 | |||
Investment securities | 0 | 0 | 0 | |||
Available for sale securities | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Asset-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 0 | 0 | ||||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Other trading securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | U.S. Treasury | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 490 | 1,000 | 998 | |||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Privately issued residential mortgage-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Commercial mortgage-backed securities guaranteed by U.S. government agencies | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Other debt securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Investment securities | 0 | 0 | 0 | |||
Available for sale securities | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Perpetual preferred stock | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 0 | 0 | ||||
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Equity securities and mutual funds | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 0 | 3,516 | ||||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Cash and due from banks | 0 | 0 | 0 | |||
Interest-bearing cash and cash equivalents | 0 | 0 | 0 | |||
Trading securities | 1,909,615 | 462,676 | 441,414 | |||
Investment securities | 403,384 | 480,035 | 515,675 | |||
Available for sale securities | 8,159,875 | 8,315,304 | 8,327,720 | |||
Residential mortgage loans held for sale | 209,058 | 209,079 | 274,524 | |||
Loans | 0 | 0 | 0 | |||
Allowance for loan losses | 0 | 0 | 0 | |||
Loans, net of allowance | 0 | 0 | 0 | |||
Mortgage servicing rights | 0 | 0 | 0 | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 352,317 | 212,323 | 233,923 | |||
Deposits with no stated maturity | 0 | 0 | 0 | |||
Time deposits | 0 | 0 | 0 | |||
Other borrowed funds | 0 | 0 | 0 | |||
Subordinated debentures | 148,112 | 148,207 | 147,204 | |||
Derivative contracts, net of cash collateral, Liabilities, Fair Value | 217,642 | 171,963 | 264,904 | |||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Commercial | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Commercial real estate | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Residential mortgage | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Personal | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | U.S. government agency debentures | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 28,750 | 21,196 | 20,954 | |||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | U.S. government agency residential mortgage-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 1,605,001 | 392,673 | 365,171 | |||
Investment securities | 13,984 | 16,242 | 18,642 | |||
Available for sale securities | 5,304,560 | 5,309,152 | 5,382,377 | |||
Fair value option securities | 482,227 | 755,054 | 445,169 | |||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Municipal and other tax-exempt securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 70,606 | 13,559 | 45,444 | |||
Investment securities | 174,205 | 230,349 | 270,531 | |||
Available for sale securities | 8,667 | 22,278 | 28,110 | |||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Asset-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 193,271 | 23,885 | ||||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Other trading securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 11,987 | 11,363 | 9,845 | |||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | U.S. Treasury | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Privately issued residential mortgage-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 83,224 | 93,221 | 103,383 | |||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Commercial mortgage-backed securities guaranteed by U.S. government agencies | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 2,738,451 | 2,834,961 | 2,782,070 | |||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Other debt securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Investment securities | 215,195 | 233,444 | 226,502 | |||
Available for sale securities | 24,973 | 25,009 | 0 | |||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Perpetual preferred stock | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 15,767 | 16,568 | ||||
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Equity securities and mutual funds | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 14,916 | 15,212 | ||||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Cash and due from banks | 0 | 0 | 0 | |||
Interest-bearing cash and cash equivalents | 0 | 0 | 0 | |||
Trading securities | 0 | 0 | 0 | |||
Investment securities | 0 | 0 | 0 | |||
Available for sale securities | 2,501 | 5,274 | 8,807 | |||
Residential mortgage loans held for sale | 14,243 | 12,299 | 12,735 | |||
Loans | 17,663,467 | 16,887,787 | 16,909,701 | |||
Allowance for loan losses | 0 | 0 | 0 | |||
Loans, net of allowance | 17,663,467 | 16,887,787 | 16,909,701 | |||
Mortgage servicing rights | 278,719 | 252,867 | 245,239 | |||
Derviative contracts, net of cash collateral, Assets, Fair value | 0 | 0 | 0 | |||
Deposits with no stated maturity | 20,041,532 | 19,962,889 | 20,120,352 | |||
Time deposits | 2,078,486 | 2,064,558 | 2,164,115 | |||
Other borrowed funds | 6,571,762 | 5,703,121 | 5,664,273 | |||
Subordinated debentures | 0 | 0 | 0 | |||
Derivative contracts, net of cash collateral, Liabilities, Fair Value | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Commercial | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 11,116,828 | 10,524,627 | 10,413,704 | |||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Commercial real estate | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 3,639,121 | 3,428,733 | 3,636,365 | |||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Residential mortgage | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 1,917,099 | 1,977,721 | 1,950,577 | |||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Personal | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Loans | 990,419 | 956,706 | 909,055 | |||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | U.S. government agency debentures | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | U.S. government agency residential mortgage-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 0 | 0 | 0 | |||
Investment securities | 0 | 0 | 0 | |||
Available for sale securities | 0 | 0 | 0 | |||
Fair value option securities | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Municipal and other tax-exempt securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 0 | 0 | 0 | |||
Investment securities | 0 | 0 | 0 | |||
Available for sale securities | 2,030 | 4,802 | 4,655 | |||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Asset-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 0 | 0 | ||||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Other trading securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Trading securities | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | U.S. Treasury | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Privately issued residential mortgage-backed securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Commercial mortgage-backed securities guaranteed by U.S. government agencies | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 0 | 0 | 0 | |||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Other debt securities | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Investment securities | 0 | 0 | 0 | |||
Available for sale securities | $ 471 | 472 | 4,152 | |||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Perpetual preferred stock | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | 0 | 0 | ||||
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Equity securities and mutual funds | ||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||
Available for sale securities | $ 0 | $ 0 |
Federal and State Income Taxe66
Federal and State Income Taxes Federal and State Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended | ||
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017 | |
Effective Income Tax Rate Reconciliation, Amount [Abstract] | |||||
Federal statutory tax | $ 31,182 | $ 47,800 | $ 59,804 | $ 92,168 | |
Tax exempt revenue | (1,653) | (3,224) | (3,465) | (6,335) | |
Effect of state income taxes, net of federal benefit | 3,288 | 2,944 | 6,945 | 5,389 | |
Utilization of tax credits, net of proportional amortization of low-income housing limited partnership investments | (1,334) | (889) | (2,667) | (2,976) | |
Share-based compensation | (424) | 1,636 | (2,044) | (2,301) | |
Adjustment to provisional amounts related to tax reform | 0 | 0 | 1,895 | 0 | |
Other, net | 2,271 | (562) | 3,810 | (137) | |
Total income tax expense | $ 33,330 | $ 47,705 | $ 64,278 | $ 85,808 | |
Effective Income Tax Rate Reconciliation, Percent [Abstract] | |||||
Federal statutory tax (in hundredths) | 21.00% | 35.00% | 21.00% | 35.00% | 35.00% |
Tax exempt revenue (in hundredths) | (1.10%) | (2.40%) | (1.20%) | (2.40%) | |
Effect of state income taxes, net of federal benefit (in hundredths) | 2.20% | 2.20% | 2.40% | 2.00% | |
Utilization of tax credits, net of proportional amortization of low-income housing limited partnership investments (in hundredths) | (0.90%) | (0.70%) | (0.90%) | (1.10%) | |
Share-based compensation (in hundredths) | (0.30%) | 1.20% | (0.70%) | (0.90%) | |
Adjustment to provisional amounts related to tax reform (in hundredths) | 0.00% | 0.00% | 0.70% | 0.00% | |
Other, net (in hundredths) | 1.50% | (0.40%) | 1.30% | 0.00% | |
Total (in hundredths) | 22.40% | 34.90% | 22.60% | 32.60% |