CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating activities:
Net income	$ 123,944	$ 137,271
Adjustments to reconcile net income to net cash provided by operating activities:
Net amortization/accretion of premium/discount on securities	14,030	15,110
Depreciation, amortization and accretion	23,096	20,429
Provision for credit losses	34,497	18,767
Gain on mortgage loans sold, net	(2,879)	(2,053)
Gain on other equity investments, net	2,882	2,360
Stock-based compensation expense	10,340	10,199
Deferred tax expense	10,209	20,690
Losses on dispositions of other real estate and other investments	56	47
Income from equity method investment	(16,035)	(19,079)
Dividends received from equity method investment	3,601	23,961
Excess tax benefit from stock compensation	(2,414)	(277)
Gain on commercial loans sold, net	(186)	(53)
Decrease (increase) in other assets	(34,471)	44,525
Increase in other liabilities	30,470	109,102
Net cash provided by operating activities	197,283	359,870
Activities in securities available-for-sale:
Purchases	(165,236)	(223,495)
Sales	0	0
Maturities, prepayments and calls	39,236	29,216
Activities in securities held-to-maturity:
Maturities, prepayments and calls	5,917	17,883
Proceeds from Securities Purchased under Agreements to Resell	3,987	3,404
Increase in loans, net	(505,746)	(1,266,114)
Purchases of software, premises and equipment	(17,316)	(35,513)
Proceeds from sales of software, premises and equipment	129	418
Proceeds from sale of other real estate	1,549	253
Proceeds from bank owned life insurance settlements	1,622	0
Proceeds from Life Insurance Policy	141,308	0
Purchase of FHLB stock, net	(11,420)	(37,065)
Increase in other investments, net	(29,730)	(52,148)
Net cash used in investing activities	(535,700)	(1,563,161)
Financing activities:
Net increase in deposits	862,224	1,217,323
Net decrease in securities sold under agreements to repurchase	(8,071)	(45,133)
Federal Home Loan Bank: Advances	450,000	2,175,000
Federal Home Loan Bank: Repayments/maturities	(450,000)	(475,000)
Principal payments of finance lease obligation	(93)	(73)
Issuance of common stock pursuant to RSA, RSU and PSU agreements, net of shares withheld for taxes	(14,427)	(3,645)
Exercise of common stock options, net of shares surrendered for taxes	(4,137)	(2,116)
Common stock dividends paid	(17,269)	(17,173)
Preferred stock dividends paid	(3,798)	(3,798)
Net cash provided by financing activities	814,429	2,845,385
Net increase in cash, cash equivalents, and restricted cash	476,012	1,642,094
Cash, cash equivalents, and restricted cash, beginning of period	2,230,349	1,177,382
Cash, cash equivalents, and restricted cash, end of period	2,706,361	2,819,476
Commercial Loan
Adjustments to reconcile net income to net cash provided by operating activities:
Loans held-for-sale originated	(51,031)	(106,007)
Loans held-for-sale sold	54,429	104,066
Consumer Loan
Adjustments to reconcile net income to net cash provided by operating activities:
Loans held-for-sale originated	(466,061)	(299,238)
Loans held-for-sale sold	$ 468,570	$ 284,770