CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating Activities
Net Income	$ 152,302	$ 142,572	$ 157,063
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	36,725	29,170	14,813
Deferred Income Taxes and Tax Credits	3,036	3,414	6,843
Depreciation and amortization	6,626	5,688	4,104
Net gains on securities and other assets	(13,793)	(14,331)	(10,048)
Net amortization of premiums and discounts on securities	20	737	1,328
Redemption Premium	0	369	0
Income from increase in cash surrender value of bank owned life insurance	(6,730)	(5,352)	(4,557)
Mortgage loans originated for sale	(282,562)	(245,304)	(186,856)
Proceeds from Sale of Mortgage Loans Held-for-sale	282,651	212,807	174,850
Decrease (increase) in interest receivable	129	3,284	(8,838)
(Decrease) increase in interest payable	(1,033)	1,215	5,001
Decrease in income taxes payable	(4)	(818)	(4,609)
Other—net	10,173	(3,988)	1,665
Net cash provided by operating activities	187,540	129,463	150,759
Transactions with securities held to maturity:
Proceeds from maturities and redemptions	78,251	67,993	41,824
Purchases	(192,541)	(55,276)	(200)
Transactions with securities available for sale:
Proceeds from sale	69,862	69,598	33,756
Proceeds from maturities and redemptions	281,247	232,897	98,309
Purchases	(162,060)	(437,346)	(338,390)
Proceeds from Sale of Equity Securities, FV-NI	5,146	5,664	0
Purchases of FHLB stock	(61,538)	(45,365)	(103,233)
Proceeds from the redemption of FHLB stock	57,340	64,832	91,435
Proceeds from Sale of Other Investments	0	450	0
Proceeds from bank owned life insurance	3,512	4,062	3,232
Proceeds from the sale of loans	101,719	115,807	154,585
Proceeds from sales of other assets	6,213	7,384	4,327
Acquisition, net of cash acquired	4,672	0	14,492
Net increase in loans	(563,960)	(136,877)	(552,376)
Purchases of premises and equipment	(16,089)	(15,546)	(22,034)
Net cash used in investing activities	(388,226)	(121,723)	(574,273)
Financing Activities
Net increase (decrease) in other short-term borrowings	65,327	(517,696)	52,407
Net increase in deposits	295,037	485,736	430,661
Repayments of other long-term debt	(21,083)	(769)	(740)
Proceeds from Issuance of Long-term Debt	0	127,000	0
Repayments of Subordinated Debt	0	(50,000)	0
Repayments of Long-term Capital Lease Obligations	606	567	531
Dividends paid	(55,489)	(52,602)	(50,814)
Proceeds from reissuance of treasury stock	245	204	245
Purchase of treasury stock	(35,792)	(12,630)	(14,965)
Net cash provided by (used in) financing activities	247,639	(21,324)	416,263
Net increase (decrease) in cash and cash equivalents	46,953	(13,584)	(7,251)
Cash and cash equivalents at January 1	133,409	146,993	154,244
Cash and cash equivalents at December 31	$ 180,362	$ 133,409	$ 146,993