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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Cash Flows From Operating Activities: [Abstract] |  |  |
Net income | $ 500,685 | $ 446,424 | $ 335,685
Adjustments to reconcile net income to net cash provided by (used in) operating activities: [Abstract] |  |  |
Provision for credit losses | 44,000 | 8,000 | (7,000)
Change in fair value of mortgage servicing rights due to market changes | 53,517 | (4,668) | (172)
Change in fair value of mortgage servicing rights due to principal payments | 38,979 | 33,528 | 33,527
Net unrealized losses (gains) from derivative contracts | (25,936) | 4,686 | 3,704
Share-based compensation | 15,544 | 4,229 | 23,602
Depreciation and amortization | 95,416 | 60,843 | 54,466
Net amortization of discounts and premiums | (16,984) | 30,945 | 28,693
Net losses (gains) on financial instruments and other losses (gains), net | (583) | 9,585 | (2,828)
Net gain on mortgage loans held for sale | (40,402) | (35,705) | (47,159)
Mortgage loans originated for sale | (3,025,930) | (2,587,297) | (3,286,873)
Proceeds from sale of mortgage loans held for sale | 3,035,600 | 2,691,144 | 3,405,890
Capitalized mortgage servicing rights | (35,128) | (35,247) | (39,149)
Change in trading and fair value option securities | (483,007) | (1,023,097) | (804,204)
Change in receivables | (740,868) | (38,346) | 321,880
Change in other assets | 18,955 | 27,507 | (5,506)
Change in accrued interest, taxes and expense | 34,894 | (5,191) | 18,191
Change in other liabilities | 57,569 | (139,346) | 182,184
Net cash provided by (used in) operating activities | (473,679) | (552,006) | 214,931
Cash Flows From Investing Activities: [Abstract] |  |  |
Proceeds from maturities or redemptions of investment securities | 60,128 | 124,864 | 112,022
Proceeds from maturities or redemptions of available for sale securities | 1,841,069 | 1,122,680 | 1,841,217
Purchases of investment securities | 0 | (4,468) | (32,972)
Purchases of available for sale securities | (5,245,256) | (1,955,172) | (2,845,557)
Proceeds from sales of available for sale securities | 1,211,718 | 745,643 | 1,309,215
Change in amount receivable on unsettled available for sale securities transactions | 25,410 | 38,347 | (68,792)
Loans originated, net of principal collected | (44,414) | (1,553,033) | (78,232)
Net payments on derivative asset contracts | 33,566 | (114,417) | 479,409
Acquisitions, net of cash acquired | 0 | (175,755) | 0
Proceeds from disposition of assets | 178,681 | 308,762 | 274,029
Purchases of assets | (384,639) | (345,082) | (250,783)
Net cash provided by (used in) investing activities | (2,323,737) | (1,807,631) | 739,556
Cash Flows From Financing Activities: [Abstract] |  |  |
Net change in demand deposits, transaction deposits and savings accounts | 2,252,936 | (13,870) | (563,406)
Net change in time deposits | 104,288 | (73,089) | (123,384)
Net change in other borrowed funds | 1,110,970 | 1,295,484 | (10,909)
Change in amount due on unsettled security purchases | (41,651) | (41,319) | 144,690
Issuance of common and treasury stock, net | (7) | (88) | 4,368
Net change in derivative margin accounts | (207,122) | 85,466 | (17,726)
Net payments or proceeds on derivative liability contracts | (33,622) | 114,076 | (485,119)
Repurchase of common stock | (129,483) | (53,465) | (7,403)
Dividends paid | (143,496) | (127,188) | (116,041)
Net cash provided by (used in) financing activities | 2,912,813 | 1,186,007 | (1,174,930)
Net increase (decrease) in cash and cash equivalents | 115,397 | (1,173,630) | (220,443)
Cash and cash equivalents at beginning of period | 1,143,424 | 2,317,054 | 2,537,497
Cash and cash equivalents at end of period | 1,258,821 | 1,143,424 | 2,317,054
Supplemental Cash Flow Information: [Abstract] |  |  |
Cash paid for interest | 417,070 | 243,121 | 127,513
Cash paid for taxes | 87,361 | 92,291 | 121,697
Net loans and bank premises transferred to repossessed real estate and other assets | 10,665 | 9,880 | 7,367
Increase in U.S. government guaranteed loans eligible for repurchase | 91,634 | 100,238 | 148,107
Increase in receivables from conveyance of GNMA OREO | 28,669 | 38,216 | 40,528
Right-of-use assets obtained in exchange for operating lease liabilities | $ 62,755 | $ 0 | $ 0

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- Definition Represents the non-cash decrease in net pre-tax net income related to the change in fair value of mortgage servicing rights due to loan runoff + References No definition available. + Details
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- Definition Represents the non-cash increase in loans related to the right but not the obligation to repurchases loans previously sold into Ginnie Mae pools based on certain criteria and as such has effectively regained control of the asset and must recognize the loan on the balance sheet. + References No definition available. + Details
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- Definition Represents the combined realized net gain from sale of residential mortgage loans and the change in the unrealized net gain on mortgage loans held for sale during the period. + References No definition available. + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3044-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of increase (decrease) in operating liabilities classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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- Definition Net cash inflow (outflow) of time deposits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 230 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6477933&loc=d3e60009-112784 + Details
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- Definition Amount of increase (decrease) of investment in debt and equity securities, measured at fair value with changes in fair value recognized in net income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3444-108585 + Details
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- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585 + Details
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- Definition The adjustment to the carrying value of the rights retained or purchased to service mortgages. These adjustments are made when the estimate of the fair value is changed. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746 + Details
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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3521-108585 + Details
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- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3521-108585 + Details
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- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3521-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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- Definition The amount of cash paid for the origination of mortgages that are held for sale. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3461-108585 + Details
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- Definition The net cash outflow or inflow from derivative instruments during the period, which are classified as investing activities, excluding those designated as hedging instruments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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- Definition The net cash outflow or inflow for the increase (decrease) in the beginning and end of period of loan and lease balances which are not originated or purchased specifically for resale. Includes cash payments and proceeds associated with (a) loans held-for-investment, (b) leases held-for-investment, and (c) both. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3151-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118954083&loc=d3e26853-111562 + Details
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