Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 220,122	$ 220,017
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	54,910	44,228
Depreciation and amortization of premises and equipment	22,789	22,212
Net amortization of investment securities premiums	725	8,650
Net accretion of loan discounts	(24,821)	0
Investment securities losses (gains), net	20,283	(19)
Gain on sales of mortgage loans held for sale	(5,952)	(4,150)
Proceeds from sales of mortgage loans held for sale	397,694	260,494
Originations of mortgage loans held for sale	(394,262)	(269,448)
Intangible amortization	11,548	2,347
Amortization of issuance costs and discounts on long-term borrowings	533	540
Gain on acquisition, net of tax	(39,685)	0
Gain on disposal of premises and equipment	(44)	0
Gain on Sale-Leaseback Transaction	(20,266)	0
Stock-based compensation	7,462	7,971
Net change in deferred federal income tax	31,203	(10,773)
Net change in accrued salaries and benefits	11,035	(11,232)
Net change in life insurance cash surrender value	(15,317)	(23,655)
Other changes, net	10,714	173,206
Total adjustments	68,549	200,371
Net cash provided by operating activities	288,671	420,388
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sales of AFS securities	2,300,487	80,666
Proceeds from principal repayments and maturities of AFS securities	194,108	77,905
Proceeds from principal repayments and maturities of HTM securities	40,561	46,301
Purchase of AFS securities	(1,450,128)	(72,252)
Net change in FRB and FHLB stock	(18,807)	23,823
Net change in loans	(277,669)	(919,231)
Net purchases of premises and equipment	(1,241)	(17,860)
Settlement of bank-owned life insurance	1,053	100
Proceeds from Sale-Leaseback Transaction	51,123	0
Net cash received for acquisition	1,018,371	0
Net change in tax credit investments	(30,109)	(17,945)
Net cash provided by (used in) investing activities	1,827,749	(798,493)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net change in demand and savings deposits	357,522	(811,325)
Net change in time deposits and brokered deposits	144,673	1,583,376
Net change in other borrowings	(1,871,808)	(501,635)
Net proceeds from issuance of common stock	270,606	2,491
Dividends paid	(96,095)	(85,323)
Acquisition of treasury stock	(30,348)	(70,940)
Net cash (used in) provided by financing activities	(1,225,450)	116,644
Net increase (decrease) in Cash and Cash Equivalents	890,970	(261,461)
Cash and Cash Equivalents at Beginning of Period	549,710	681,921
Cash and Cash Equivalents at End of Period	1,440,680	420,460
Cash paid during the period for:
Interest	459,522	276,159
Income taxes	20,739	23,416
Supplemental Schedule of Certain Noncash Activities:
Fair value of tangible assets acquired	4,708,947	0
Intangible assets	92,600	0
Liabilities assumed	5,560,160	0
PCD Loans credit discount	$ 54,767	$ 0