CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Interest and dividend income:
Loans, including fees	$ 263,906	$ 258,192	$ 243,315
Interest and dividends on investment securities:
Taxable investment securities	38,849	33,278	28,789
Tax-exempt investment securities	2,822	2,527	2,912
Dividend income on investment securities	0	0	0
Deposits in other financial institutions	7,096	11,593	7,163
Dividend income on FRB and FHLB stock	1,489	509	478
Total interest income	314,162	306,099	282,657
Deposits:
Demand	1,826	2,159	1,701
Savings and money market	34,178	37,043	21,979
Time	30,132	46,084	39,205
Short-term borrowings	0	1	1,139
Long-term debt	7,143	9,079	8,633
Total interest expense	73,279	94,366	72,657
Net interest income	240,883	211,733	210,000
Provision (credit) for credit losses	15,712	9,826	15,698
Net interest income after provision for credit losses	225,171	201,907	194,302
Other operating income:
Mortgage banking income	3,485	3,388	2,592
Service charges on deposit accounts	9,024	8,656	8,753
Other service charges and fees	23,765	22,553	20,531
Income from fiduciary activities	6,201	5,761	4,895
Income from bank-owned life insurance	7,452	6,619	4,870
Net loss on sales of investment securities	(30)	(9,934)	(2,074)
Other	1,920	1,680	7,096
Other operating income	51,817	38,723	46,663
Other operating expense:
Salaries and employee benefits	93,754	85,941	82,050
Net occupancy	17,675	18,001	18,185
Equipment	3,724	3,881	3,958
Communication	3,220	3,177	3,010
Legal and professional services	11,218	9,790	9,959
Computer software	20,627	18,015	17,726
Advertising	3,392	3,615	3,888
Other	25,097	30,171	25,367
Total other operating expense	178,707	172,591	164,143
Income before income taxes	98,281	68,039	76,822
Income tax expense	20,801	14,627	18,153
Net income	$ 77,480	$ 53,412	$ 58,669
Per common share data:
Basic earnings per share (in dollars per share)	$ 2.88	$ 1.97	$ 2.17
Diluted earnings per share (in dollars per share)	2.86	1.97	2.17
Cash dividends declared (in dollars per share)	$ 1.09	$ 1.04	$ 1.04