Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 233,035	$ 223,169
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	15,021	16,369
Provision for credit losses	25,387	21,691
Gain on other real estate and foreclosed assets	(388)	(1,590)
Deferred tax expense (benefit)	17,199	(2,221)
Increase cash surrender value of life insurance contracts	(9,396)	(13,804)
Loss (gain) loss on disposal of assets	99	(1,374)
Net increase in loans held for sale	(8,673)	(1,019)
Net amortization of securities premium/discount	6,775	6,887
Amortization of intangible assets	4,637	4,915
Stock-based compensation expense	11,964	11,817
Net change in derivative collateral liability	(22,017)	5,534
Net decrease in interest payable and other liabilities	(19,528)	(18,291)
Net (increase) decrease in other assets	(26,395)	23,372
Other, net	2,265	(3,742)
Net cash provided by operating activities	229,985	271,713
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from maturities of securities available for sale	198,383	167,697
Purchases of securities available for sale	(514,808)	(289,144)
Proceeds from maturities of securities held to maturity	199,570	108,919
Net decrease in short-term investments	335,106	45,473
Net purchases of Federal Home Loan Bank stock	(12,318)	0
Proceeds from sales of loans and leases	49,756	51,055
Net increase in loans	(244,216)	(56,692)
Purchases of property and equipment	(7,758)	(3,584)
Net cash paid in business acquisition	(112,071)
Proceeds from sales of other real estate and foreclosed assets	3,238	4,693
Other, net	(4,118)	507
Net cash (used in) provided by investing activities	(109,236)	28,924
CASH FLOWS FROM FINANCING ACTIVITIES:
Net decrease in deposits	(446,239)	(489,341)
Net increase in short-term borrowings	405,912	209,130
Dividends paid	(78,237)	(61,395)
Payroll tax remitted on net share settlement of equity awards	(6,628)	(6,801)
Proceeds from dividend reinvestment and stock purchase plans	2,212	2,018
Repurchase of common stock	(60,177)	(14,622)
Net cash used in financing activities	(183,157)	(361,011)
NET DECREASE IN CASH AND DUE FROM BANKS	(62,408)	(60,374)
CASH AND DUE FROM BANKS, BEGINNING	574,910	561,202
CASH AND DUE FROM BANKS, ENDING	512,502	500,828
SUPPLEMENTAL INFORMATION FOR NON-CASH INVESTING AND FINANCING ACTIVITIES
Assets acquired in settlement of loans	$ 5,691	$ 1,625