Segment Reporting, Reconciliation of Segment Revenues (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) Segment	Jun. 30, 2024 USD ($)
Segment Reporting [Abstract]
Number of operating segments | Segment			1
Interest income [Abstract]
Interest and fees on loans, including loans held for sale	$ 75,828	$ 67,264	$ 148,564	$ 131,980
Interest and dividends on securities [Abstract]
Taxable	5,709	6,332	11,484	13,062
Tax exempt	613	653	1,230	1,312
Interest and dividends on Federal Reserve Bank and Federal Home Loan Bank stock	181	175	369	384
Interest on Federal Reserve Bank deposits	3,142	2,121	5,790	4,712
Other, including interest on federal funds sold	98	103	188	200
Total interest income	85,571	76,648	167,625	151,650
Interest expense [Abstract]
Interest on deposits	28,170	27,144	55,628	54,820
Interest on repurchase agreements and federal funds purchased	2,352	2,641	4,670	5,216
Interest on advances from Federal Home Loan Bank	13	15	13	15
Interest on long-term debt	996	1,170	2,007	2,330
Total interest expense	31,531	30,970	62,318	62,381
Net interest income	54,040	45,678	105,307	89,269
Provision for credit losses	2,094	2,972	5,662	5,628
Net interest income after provision for credit losses	51,946	42,706	99,645	83,641
Noninterest income [Abstract]
Deposit related fees	7,350	7,308	14,172	14,319
Gains on sales of loans, net	77	119	124	164
Trust and wealth management income	4,092	3,736	8,073	7,253
Loan related fees	1,249	1,320	2,214	2,672
Bank owned life insurance	1,102	1,815	2,137	3,107
Brokerage revenue	526	683	1,020	1,173
Securities gains (losses)	150	(474)	630	(103)
Dividend and undistributed income from subsidiaries	0	0	0	0
Other noninterest income	1,625	1,201	2,698	2,257
Total noninterest income	16,171	15,708	31,068	30,842
Noninterest expense [Abstract]
Officer salaries and employee benefits	5,610	4,132	10,007	8,373
Other salaries and employee benefits	16,044	15,459	31,765	31,340
Occupancy, net	2,389	2,375	5,140	4,753
Equipment	783	714	1,472	1,364
Data processing	3,326	2,669	6,185	5,187
Taxes other than property and payroll	573	438	1,102	880
Legal fees	319	297	879	515
Professional fees	682	681	1,347	1,295
Advertising and marketing	765	856	1,438	1,433
FDIC insurance	688	645	1,377	1,287
Other real estate owned provision and expense	64	19	125	59
Repossession expense	264	298	457	524
Other noninterest expense	4,156	3,839	8,577	7,632
Total noninterest expense	35,663	32,422	69,871	64,642
Income before income taxes	32,454	25,992	60,842	49,841
Income taxes	7,555	6,493	13,971	11,663
Net income	24,899	19,499	46,871	38,178
Operating Segments [Member] | Community Banking Services [Member]
Interest income [Abstract]
Interest and fees on loans, including loans held for sale	75,828	67,264	148,564	131,980
Interest and dividends on securities [Abstract]
Taxable	5,709	6,332	11,484	13,062
Tax exempt	613	653	1,230	1,312
Interest and dividends on Federal Reserve Bank and Federal Home Loan Bank stock	181	175	369	384
Interest on Federal Reserve Bank deposits	3,142	2,121	5,790	4,712
Other, including interest on federal funds sold	69	68	130	132
Total interest income	85,542	76,613	167,567	151,582
Interest expense [Abstract]
Interest on deposits	28,170	27,144	55,628	54,820
Interest on repurchase agreements and federal funds purchased	2,352	2,641	4,670	5,216
Interest on advances from Federal Home Loan Bank	13	15	13	15
Interest on long-term debt	89	91	181	185
Total interest expense	30,624	29,891	60,492	60,236
Net interest income	54,918	46,722	107,075	91,346
Provision for credit losses	2,094	2,972	5,662	5,628
Net interest income after provision for credit losses	52,824	43,750	101,413	85,718
Noninterest income [Abstract]
Deposit related fees	7,350	7,308	14,172	14,319
Gains on sales of loans, net	77	119	124	164
Trust and wealth management income	4,226	4,099	8,345	7,635
Loan related fees	1,249	1,320	2,214	2,672
Bank owned life insurance	1,102	1,815	2,137	3,107
Brokerage revenue	526	683	1,020	1,173
Securities gains (losses)	150	(474)	630	(103)
Dividend and undistributed income from subsidiaries	0	0	0	0
Other noninterest income	1,919	1,788	3,289	3,124
Total noninterest income	16,599	16,658	31,931	32,091
Noninterest expense [Abstract]
Officer salaries and employee benefits	4,924	3,747	8,729	7,581
Other salaries and employee benefits	16,044	15,459	31,765	31,340
Occupancy, net	2,389	2,375	5,140	4,753
Equipment	800	711	1,506	1,372
Data processing	3,759	2,673	7,056	5,569
Taxes other than property and payroll	573	438	1,102	880
Legal fees	215	262	708	440
Professional fees	1,358	610	2,704	2,053
Advertising and marketing	789	825	1,454	1,396
FDIC insurance	688	645	1,377	1,287
Other real estate owned provision and expense	64	19	125	59
Repossession expense	264	298	457	524
Other noninterest expense	3,893	3,594	8,208	7,263
Total noninterest expense	35,760	31,656	70,331	64,517
Income before income taxes	33,663	28,752	63,013	53,292
Income taxes	8,226	7,105	15,314	12,858
Net income	25,437	21,647	47,699	40,434
Operating Segments [Member] | Holding Company [Member]
Interest income [Abstract]
Interest and fees on loans, including loans held for sale	0	0	0	0
Interest and dividends on securities [Abstract]
Taxable	0	0	0	0
Tax exempt	0	0	0	0
Interest and dividends on Federal Reserve Bank and Federal Home Loan Bank stock	0	0	0	0
Interest on Federal Reserve Bank deposits	0	0	0	0
Other, including interest on federal funds sold	29	35	58	68
Total interest income	29	35	58	68
Interest expense [Abstract]
Interest on deposits	0	0	0	0
Interest on repurchase agreements and federal funds purchased	0	0	0	0
Interest on advances from Federal Home Loan Bank	0	0	0	0
Interest on long-term debt	961	1,144	1,936	2,275
Total interest expense	961	1,144	1,936	2,275
Net interest income	(932)	(1,109)	(1,878)	(2,207)
Provision for credit losses	0	0	0	0
Net interest income after provision for credit losses	(932)	(1,109)	(1,878)	(2,207)
Noninterest income [Abstract]
Deposit related fees	0	0	0	0
Gains on sales of loans, net	0	0	0	0
Trust and wealth management income	0	0	0	0
Loan related fees	0	0	0	0
Bank owned life insurance	0	0	0	0
Brokerage revenue	0	0	0	0
Securities gains (losses)	0	0	0	0
Dividend and undistributed income from subsidiaries	26,644	21,072	50,113	41,268
Other noninterest income	313	295	622	583
Total noninterest income	26,957	21,367	50,735	41,851
Noninterest expense [Abstract]
Officer salaries and employee benefits	908	592	1,721	1,207
Other salaries and employee benefits	230	218	460	436
Occupancy, net	0	0	0	0
Equipment	52	52	103	99
Data processing	10	4	17	8
Taxes other than property and payroll	0	0	0	0
Legal fees	104	35	171	75
Professional fees	103	151	204	243
Advertising and marketing	(24)	31	(16)	37
FDIC insurance	0	0	0	0
Other real estate owned provision and expense	0	0	0	0
Repossession expense	0	0	0	0
Other noninterest expense	414	288	669	556
Total noninterest expense	1,797	1,371	3,329	2,661
Income before income taxes	24,228	18,887	45,528	36,983
Income taxes	(671)	(612)	(1,343)	(1,195)
Net income	24,899	19,499	46,871	38,178
Eliminations [Member]
Interest income [Abstract]
Interest and fees on loans, including loans held for sale	0	0	0	0
Interest and dividends on securities [Abstract]
Taxable	0	0	0	0
Tax exempt	0	0	0	0
Interest and dividends on Federal Reserve Bank and Federal Home Loan Bank stock	0	0	0	0
Interest on Federal Reserve Bank deposits	0	0	0	0
Other, including interest on federal funds sold	0	0	0	0
Total interest income	0	0	0	0
Interest expense [Abstract]
Interest on deposits	0	0	0	0
Interest on repurchase agreements and federal funds purchased	0	0	0	0
Interest on advances from Federal Home Loan Bank	0	0	0	0
Interest on long-term debt	(54)	(65)	(110)	(130)
Total interest expense	(54)	(65)	(110)	(130)
Net interest income	54	65	110	130
Provision for credit losses	0	0	0	0
Net interest income after provision for credit losses	54	65	110	130
Noninterest income [Abstract]
Deposit related fees	0	0	0	0
Gains on sales of loans, net	0	0	0	0
Trust and wealth management income	(134)	(363)	(272)	(382)
Loan related fees	0	0	0	0
Bank owned life insurance	0	0	0	0
Brokerage revenue	0	0	0	0
Securities gains (losses)	0	0	0	0
Dividend and undistributed income from subsidiaries	(26,644)	(21,072)	(50,113)	(41,268)
Other noninterest income	(607)	(882)	(1,213)	(1,450)
Total noninterest income	(27,385)	(22,317)	(51,598)	(43,100)
Noninterest expense [Abstract]
Officer salaries and employee benefits	(222)	(207)	(443)	(415)
Other salaries and employee benefits	(230)	(218)	(460)	(436)
Occupancy, net	0	0	0	0
Equipment	(69)	(49)	(137)	(107)
Data processing	(443)	(8)	(888)	(390)
Taxes other than property and payroll	0	0	0	0
Legal fees	0	0	0	0
Professional fees	(779)	(80)	(1,561)	(1,001)
Advertising and marketing	0	0	0	0
FDIC insurance	0	0	0	0
Other real estate owned provision and expense	0	0	0	0
Repossession expense	0	0	0	0
Other noninterest expense	(151)	(43)	(300)	(187)
Total noninterest expense	(1,894)	(605)	(3,789)	(2,536)
Income before income taxes	(25,437)	(21,647)	(47,699)	(40,434)
Income taxes	0	0	0	0
Net income	$ (25,437)	$ (21,647)	$ (47,699)	$ (40,434)