Business Segments (Statement of Operations and Total Assets by Reportable Segment) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Net interest income	[1]	$ 32,262	$ 33,751	$ 95,512	$ 104,444
Provision for credit losses		200	500	1,400	2,000
Net interest income (expense) after provision for credit losses		32,062	33,251	94,112	102,444
Noninterest income	[1]	16,272	15,226	50,095	42,834
Depreciation and amortization expense		1,184	1,238	3,597	3,641
Other noninterest expenses		33,320	33,152	99,180	97,329
Total noninterest expenses		34,504	34,390	102,777	100,970
Income before income taxes		13,830	14,087	41,430	44,308
Income tax expense		2,849	2,926	8,698	9,079
Net income		10,981	11,161	32,732	35,229
Total assets		7,141,571	7,183,475	7,141,571	7,183,475	$ 7,202,847
Expenditures for long-lived assets		1,273	504	3,519	3,524
Commercial Banking
Segment Reporting Information [Line Items]
Net interest income		32,262	33,741	95,512	104,407
Provision for credit losses		200	500	1,400	2,000
Net interest income (expense) after provision for credit losses		32,062	33,241	94,112	102,407
Noninterest income		6,177	6,105	18,400	15,679
Depreciation and amortization expense		878	892	2,663	2,582
Other noninterest expenses		26,523	25,719	78,690	74,801
Total noninterest expenses		27,401	26,611	81,353	77,383
Income before income taxes		10,838	12,735	31,159	40,703
Income tax expense		2,193	2,621	6,441	8,226
Net income		8,645	10,114	24,718	32,477
Total assets		7,082,826	7,127,117	7,082,826	7,127,117
Expenditures for long-lived assets		1,271	498	3,427	3,493
Wealth Management Services
Segment Reporting Information [Line Items]
Net interest income		0	10	0	37
Provision for credit losses		0	0	0	0
Net interest income (expense) after provision for credit losses		0	10	0	37
Noninterest income		10,095	9,121	31,695	27,155
Depreciation and amortization expense		306	346	934	1,059
Other noninterest expenses		6,797	7,433	20,490	22,528
Total noninterest expenses		7,103	7,779	21,424	23,587
Income before income taxes		2,992	1,352	10,271	3,605
Income tax expense		656	305	2,257	853
Net income		2,336	1,047	8,014	2,752
Total assets		58,745	56,358	58,745	56,358
Expenditures for long-lived assets		$ 2	$ 6	$ 92	$ 31

[1] As reported in the Unaudited Consolidated Statements of Income.