Segment Reporting (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($) item segment	Mar. 31, 2021 USD ($)
Segment Reporting
Number of operating segments | segment	4
Number of banking offices | item	14
Key metrics related to segments
Net interest income	$ 21,673	$ 22,038
Noninterest income	29,470	40,881
Noninterest expense	38,071	43,042
Net income before taxes	13,072	19,877
Corporate Administration
Key metrics related to segments
Net interest income	(561)	(288)
Noninterest income	29	(14)
Noninterest expense	10,087	8,658
Net income before taxes	(10,619)	(8,960)
Banking | Operating Segments
Key metrics related to segments
Net interest income	21,525	21,880
Noninterest income	1,538	1,522
Noninterest expense	12,694	11,084
Net income before taxes	10,369	12,318
Retirement and Benefit Services | Operating Segments
Key metrics related to segments
Noninterest income	17,646	17,255
Noninterest expense	8,432	10,112
Net income before taxes	9,214	7,143
Wealth Management | Operating Segments
Key metrics related to segments
Noninterest income	5,326	4,986
Noninterest expense	1,838	2,335
Net income before taxes	3,488	2,651
Mortgage | Operating Segments
Key metrics related to segments
Net interest income	709	446
Noninterest income	4,931	17,132
Noninterest expense	5,020	10,853
Net income before taxes	$ 620	$ 6,725