CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 155,602	$ 150,283
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,423	15,467
Provision for credit losses	16,270	9,969
Net amortization of premium on securities	12,670	23,332
Securities losses, net	19,573	1,532
Unrealized gain on equity securities, net	(605)	(165)
Stock based compensation	8,247	7,742
Loans originated for sale	0	(122,764)
Proceeds on sales of loans held for sale	5,175	138,603
Net gains on sale of loans held for sale	(104)	(3,762)
Decrease (increase) in accrued interest receivable	6,967	(9,203)
Decrease in prepaid expenses	4,580	964
(Decrease) increase in accrued interest payable	(8,562)	46,697
Capitalization of servicing rights	0	(24)
(Gain) loss on sales/valuations of assets, net	(26,012)	(2,149)
Net excess tax expense from stock based compensation	(189)	(115)
Income from fair value hedge activity	772	0
Other, net	105,946	140,670
NET CASH PROVIDED BY OPERATING ACTIVITIES	313,753	397,077
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of time deposits in other financial institutions	190	0
Proceeds from the sale of securities available for sale	128,872	331,196
Proceeds from the maturity of and principal paydowns on securities available for sale	748,070	480,362
Proceeds from the maturity of and principal paydowns on securities held to maturity	7,322	2,325
Proceeds from the maturity of time deposits in other financial institutions	0	250
Proceeds from the sale, maturity of, redemption of and principal paydowns on other investments	50,144	13,255
Purchase of securities available for sale	(204,864)	(276,635)
Purchase of other investments	(28,096)	(28,851)
Net decrease (increase) in loans	247,337	(505,924)
Purchase of bank owned life insurance policies	(223)	(226)
Proceeds from sale of mortgage servicing rights	0	6,714
Capital expenditures and investments	(1,199)	(5,701)
Proceeds from the sale of premises, furniture and equipment	1,955	4,446
Net cash expended in divestitures	(176,764)	0
Proceeds on sale of OREO and other repossessed assets	10,224	5,672
NET CASH PROVIDED BY INVESTING ACTIVITIES	782,968	26,883
CASH FLOWS FROM FINANCING ACTIVITIES:
Net decrease in demand deposits	(359,349)	(908,527)
Net increase (decrease) in savings deposits	404,939	(1,239,480)
Net (decrease) increase in time deposit accounts	(762,215)	1,735,991
Net decrease in borrowings	(50,545)	(285,255)
Proceeds from Bank Term Funding Program advances	500,000	0
Proceeds from short-term FHLB advances	643,309	617,391
Repayments of short-term FHLB advances	(1,164,495)	(315,619)
Repayments of term debt	0	(740)
Proceeds from issuance of common stock	1,643	1,527
Dividends paid	(44,627)	(44,340)
NET CASH USED BY FINANCING ACTIVITIES	(831,340)	(439,052)
Net increase (decrease) in cash and cash equivalents	265,381	(15,092)
Cash and cash equivalents at beginning of year	323,013	363,087
CASH AND CASH EQUIVALENTS AT END OF PERIOD	588,394	347,995
Supplemental disclosures:
Cash paid for income/franchise taxes	25,190	47,240
Cash paid for interest	299,899	206,113
Loans transferred to OREO	5,215	12,776
Transfer of premises from premises, furniture and equipment, net, to premises, furniture and equipment held for sale	8,478	4,091
Transfer of premises from premises, furniture and equipment held for sale to premises, furniture and equipment, net	350	5,825
Dividends declared, not paid	$ 2,434	$ 2,141