Consolidated Statements of Cash Flow (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income (Loss)	$ 118,459	$ 100,975
Adjustments to reconcile to net cash provided by operating activities:
Provision for credit losses	2,973	7,373
Depreciation and amortization	11,247	10,833
Net amortization of securities premiums and discounts	(232)	(627)
Realized securities losses/(gains)	1,073	(50)
Gain on sales of loans	(1,466)	(1,224)
Cash receipts from the sale of loans originated for sale	86,205	110,096
Cash disbursements for loans originated for sale	(86,675)	(72,791)
Deferred income tax benefit	(2,194)	(1,764)
Gain on sale of other assets	(919)	(1,319)
Increase/(decrease) in interest receivable	914	(3,074)
(Decrease)/increase in interest payable	(334)	5,314
Amortization of stock-based compensation arrangements	1,709	1,635
Excess tax benefit from stock-based compensation arrangements	(1,043)	(750)
Other, net	25,357	11,848
Net cash provided by operating activities	155,074	166,475
INVESTING ACTIVITIES
Net decrease in federal funds sold	715	214
Purchases of available for sale debt securities	(233)	(270)
Proceeds from maturities, calls and paydowns of held for investment debt securities	90	352
Proceeds from maturities, calls and paydowns of available for sale debt securities	127,572	116,611
Purchase of equity securities	(256)	(404)
Proceeds from paydowns and sales of equity securities	351	206
Net change in loans	(114,469)	(445,920)
Net payments on derivative asset contracts	(3,163)	(22,293)
Purchases of premises, equipment and computer software	(25,054)	(16,273)
Purchase of tax credits	(16,289)	(2,469)
Other, net	4,322	8,978
Net cash used in investing activities	(26,414)	(361,268)
FINANCING ACTIVITIES
Net change in deposits	337,646	315,480
Net change in short-term borrowings	5,860	913
Issuance of common stock in connection with stock-based compensation plans, net	1,982	2,565
Cash dividends paid	(30,570)	(28,336)
Net cash provided by financing activities	314,918	290,622
Net increase in cash, due from banks and interest-bearing deposits	443,578	95,829
Cash, due from banks and interest-bearing deposits at the beginning of the period	3,553,772	2,397,463
Cash, due from banks and interest-bearing deposits at the end of the period	3,997,350	2,493,292
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid during the period for interest	134,032	128,794
Cash paid during the period for income taxes	16,331	22,349
Noncash investing and financing activities:
Unpaid common stock dividends declared	$ 15,305	$ 14,200