Business Segments (Statement of Operations and Total Assets by Reportable Segment) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Net interest income	[1]	$ 31,585	$ 33,500	$ 63,250	$ 70,693
Provision for credit losses		500	700	1,200	1,500
Net interest income (expense) after provision for credit losses		31,085	32,800	62,050	69,193
Noninterest income	[1]	16,660	14,325	33,823	27,608
Depreciation and amortization expense		1,204	1,216	2,414	2,403
Other noninterest expenses		32,706	31,800	65,859	64,177
Total noninterest expenses		33,910	33,016	68,273	66,580
Income before income taxes		13,835	14,109	27,600	30,221
Income tax expense		3,020	2,853	5,849	6,153
Net income		10,815	11,256	21,751	24,068
Total assets		7,184,360	7,011,760	7,184,360	7,011,760	$ 7,202,847
Expenditures for long-lived assets		1,620	1,876	2,246	3,020
Commercial Banking [Member]
Segment Reporting Information [Line Items]
Net interest income		31,585	33,486	63,250	70,666
Provision for credit losses		500	700	1,200	1,500
Net interest income (expense) after provision for credit losses		31,085	32,786	62,050	69,166
Noninterest income		6,651	5,142	12,223	9,573
Depreciation and amortization expense		893	858	1,786	1,690
Other noninterest expenses		26,026	24,449	52,166	49,082
Total noninterest expenses		26,919	25,307	53,952	50,772
Income before income taxes		10,817	12,621	20,321	27,967
Income tax expense		2,342	2,518	4,248	5,605
Net income		8,475	10,103	16,073	22,362
Total assets		7,125,943	6,938,357	7,125,943	6,938,357
Expenditures for long-lived assets		1,598	1,859	2,156	2,995
Wealth Management Services [Member]
Segment Reporting Information [Line Items]
Net interest income		0	14	0	27
Provision for credit losses		0	0	0	0
Net interest income (expense) after provision for credit losses		0	14	0	27
Noninterest income		10,009	9,183	21,600	18,035
Depreciation and amortization expense		311	358	628	713
Other noninterest expenses		6,680	7,351	13,693	15,095
Total noninterest expenses		6,991	7,709	14,321	15,808
Income before income taxes		3,018	1,488	7,279	2,254
Income tax expense		678	335	1,601	548
Net income		2,340	1,153	5,678	1,706
Total assets		58,417	73,403	58,417	73,403
Expenditures for long-lived assets		$ 22	$ 17	$ 90	$ 25

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