Consolidated Statements of Cash Flow (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 50,334	$ 57,533
Adjustments to reconcile to net cash provided by operating activities:
Provision for credit losses	4,015	2,322
Depreciation and amortization	5,442	5,523
Net amortization of securities premiums and discounts	(306)	(273)
Realized securities losses	267	213
Gain on sales of loans	(491)	(604)
Cash receipts from the sale of loans originated for sale	28,773	34,246
Cash disbursements for loans originated for sale	(30,789)	(33,634)
Deferred income tax benefit	(822)	(778)
Gain on sale of other assets	(122)	(578)
Increase in interest receivable	(2,517)	(1,390)
Increase in interest payable	3,374	2,264
Amortization of stock-based compensation arrangements	715	382
Excess tax benefit from stock-based compensation arrangements	(470)	(324)
Other, net	8,921	4,602
Net cash provided by operating activities	66,324	69,504
INVESTING ACTIVITIES
Net decrease in federal funds sold	107	1,766
Purchases of available for sale debt securities		(91,312)
Proceeds from maturities, calls and paydowns of held for investment debt securities	61	170
Proceeds from maturities, calls and paydowns of available for sale debt securities	17,657	32,940
Purchase of equity securities	(366)	(195)
Proceeds from paydowns and sales of equity securities	42	485
Net change in loans	(130,801)	(176,739)
Net (payments)/receipts on derivative asset contracts	(19,595)	11,141
Purchases of premises, equipment and computer software	(10,251)	(7,962)
Purchase of tax credits	(429)	(536)
Other, net	2,346	1,658
Net cash used in investing activities	(141,229)	(228,584)
FINANCING ACTIVITIES
Net change in deposits	209,499	(364,125)
Net change in short-term borrowings	6,348	203,194
Issuance of common stock in connection with stock options, net	851	642
Cash dividends paid	(14,161)	(13,150)
Net cash provided by (used in) financing activities	202,537	(173,439)
Net increase/(decrease) in cash, due from banks and interest-bearing deposits	127,632	(332,519)
Cash, due from banks and interest-bearing deposits at the beginning of the period	2,397,463	3,168,910
Cash, due from banks and interest-bearing deposits at the end of the period	2,525,095	2,836,391
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid during the period for interest	62,164	34,026
Cash paid during the period for income taxes	249	1,880
Noncash investing and financing activities:
Unpaid common stock dividends declared	$ 14,175	$ 13,160