Summarized Quarterly Financial Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Interest income	$ 56,588	$ 50,807	$ 42,742	$ 39,551	$ 42,473	$ 41,558	$ 40,499	$ 40,937	$ 189,688	$ 165,467	$ 178,259
Taxable equivalent adjustment	336	326	321	323	325	334	343	331
Interest income (FTE)	56,924	51,133	43,063	39,874	42,798	41,892	40,842	41,268
Interest expense	4,543	2,025	1,452	1,635	1,842	2,070	2,585	3,397	9,655	9,894	23,615
Net Interest Income	52,381	49,108	41,611	38,239	40,956	39,822	38,257	37,871
Provision for (recovery of) credit losses	500	730	0	(756)	0	(725)	(2,000)	(440)	474	(3,165)	10,722
Noninterest income	18,536	18,244	17,849	17,448	17,616	17,947	17,448	16,630	72,077	69,641	82,680
Noninterest expense	32,585	31,501	30,689	29,527	28,624	29,178	29,574	29,809	124,302	117,185	115,290
Income Loss From Continuing Operations Before Tax Equivalent Adjustment Income Taxes Extraordinary Items Noncontrolling Interest	37,832	35,121	28,771	26,916	29,948	29,316	28,131	25,132
Income tax expense	6,824	7,421	5,767	5,251	6,237	6,250	5,640	4,987	25,263	23,114	21,717
Interest Income Taxable Equivalent Adjustment - Tax	(336)	(326)	(321)	(323)	(325)	(334)	(343)	(331)
Net Income Available to Common Shareholders	30,672	27,374	22,683	21,342	23,386	22,732	22,148	19,814	102,071	88,080	89,595
Net earnings allocated to common shareholders	$ 30,378	$ 27,119	$ 22,480	$ 21,142	$ 23,161	$ 22,499	$ 21,942	$ 19,635	$ 101,113	$ 87,237	$ 88,708
Basic earnings per common share	$ 2.06	$ 1.84	$ 1.51	$ 1.41	$ 1.54	$ 1.47	$ 1.41	$ 1.25	$ 6.81	$ 5.67	$ 5.55
Diluted earnings per common share	$ 2.05	$ 1.83	$ 1.51	$ 1.41	$ 1.54	$ 1.47	$ 1.41	$ 1.25	$ 6.80	$ 5.66	$ 5.55
Basic	14,756	14,776	14,888	14,974	15,026	15,279	15,573	15,656	14,847	15,381	15,975
Average shares outstanding, diluted	14,785	14,800	14,909	15,002	15,056	15,302	15,594	15,687	14,873	15,407	15,995