CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Cash flows provided by (used in) operating activities
Net income	$ 135,262	$ 113,691	$ 122,565
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for credit losses	52,743	7,495	2,860
Amortization of intangible assets	16,614	10,057	10,432
Amortization of mortgage servicing rights	663	997	2,785
Amortization of New Markets Tax Credit	0	0	8,999
Depreciation and amortization of premises and equipment	12,926	9,503	9,488
Net amortization (accretion) on portfolio loans	(17,221)	4,372	6,971
Net amortization (accretion) of premium (discount) on investment securities	1,457	8,857	14,406
Net amortization (accretion) of premium (discount) on time deposits	(1,710)	101	(270)
Net amortization (accretion) of premium (discount) on FHLB advances and other borrowings	1,938	1,158	1,027
Impairment of OREO and other repossessed assets	422	0	100
Impairment of fixed assets held for sale	286	637	0
Impairment of mortgage servicing rights	154	0	1
Impairment of leases	28	0	0
Unrealized (gains) losses recognized on equity securities, net	(4,516)	(931)	2,171
(Gain) loss on sales of equity securities, net	0	0	(5,475)
(Gain) loss on sales of debt securities, net	15,242	7,033	5,503
(Gain) loss on sales of mortgage servicing rights	0	(7,724)	0
(Gain) loss on sales of loans, net	(1,680)	(1,761)	(733)
(Gain) loss on sales of OREO and other repossessed assets	(302)	(585)	(46)
(Gain) loss on sales of premises and equipment	(2)	(138)	(450)
(Gain) loss on life insurance proceeds	(508)	(895)	(759)
Increase in cash surrender value of bank owned life insurance	(6,089)	(4,235)	(3,942)
Provision for deferred income taxes	8,074	1,384	(2,920)
Stock-based compensation	17,120	7,726	6,595
Proceeds from the sale of mortgage servicing rights	0	9,796	0
Mortgage loans originated for sale	(106,092)	(104,176)	(35,413)
Proceeds from sales of mortgage loans	105,280	104,670	35,018
(Increase) decrease in other assets	(10,319)	19,752	(17,888)
Increase (decrease) in other liabilities	(27,199)	(8,517)	12,365
Net cash provided by operating activities	192,571	178,267	173,390
Cash flows provided by (used in) investing activities
Purchases of equity securities	(919)	(30,422)	(6,617)
Purchases of debt securities available for sale	(546,278)	(182,603)	(10,436)
Proceeds from sales of equity securities	6,487	25,303	11,644
Proceeds from sales of debt securities available for sale	531,795	101,361	105,044
Proceeds from paydowns and maturities of debt securities held to maturity	82,643	48,822	48,927
Proceeds from paydowns and maturities of debt securities available for sale	464,828	370,774	326,252
Purchases of restricted bank stock	(35,278)	(43,954)	(30,957)
Proceeds from the redemption of restricted bank stock	11,905	884	43,926
Purchases of loans	(116,761)	(14,602)	0
Net decrease in loans	305,623	364,455	65,240
Net cash received in acquisitions (see Note 2)	385,804	18,377	0
Cash paid for premiums on bank-owned life insurance	(46)	(74)	(80)
Proceeds from life insurance	4,485	3,092	2,292
Purchases of premises and equipment	(19,618)	(6,430)	(9,533)
Proceeds from disposition of premises and equipment	936	2,247	4,425
Net proceeds from OREO and other repossessed assets	21,958	673	860
Net cash provided by investing activities	1,097,564	657,903	550,987
Cash flows provided by (used in) financing activities
Net increase (decrease) in deposits	(1,646,521)	(701,605)	220,146
Net increase (decrease) in federal funds purchased and securities sold under agreements to repurchase	11,319	(32,969)	(42,410)
Proceeds from short-term borrowings	60,000
Repayment of short-term borrowings	(71,158)	(36,000)	(335,000)
Proceeds from other borrowings, net of debt issuance costs	40,000	0	0
Repayment of other borrowings	(129,172)	(31,450)	(16,054)
Cash dividends paid	(90,989)	(54,169)	(53,076)
Purchase of treasury stock	(69,859)	0	(4,482)
Cash paid for withholding taxes on stock-based payments	(5,282)	(1,755)	(1,093)
Proceeds from (cash paid for) the exercise of stock options, warrants, and SSARs	(452)	(3)	9
Issuance of treasury stock for the ESPP	1,845	0	0
Issuance of preferred stock, net of stock issuance costs	207,447	0	0
Common stock issuance costs	(920)	(141)	0
Net cash used in financing activities	(1,693,742)	(858,092)	(231,960)
Net increase (decrease) in cash and cash equivalents	(403,607)	(21,922)	492,417
Cash and cash equivalents, beginning of period	697,659	719,581	227,164
Cash and cash equivalents, ending of period	294,052	697,659	719,581
Cash payments for:
Interest	320,008	208,359	135,482
Non-cash investing and financing activities:
OREO and other repossessed assets acquired in settlement of loans	22,772	26	189
Transfer of loans held for sale to portfolio loans	$ 359	$ 0	$ 0