Loans - Allowance for Loan Losses and Recorded Investment by Portfolio Type based on Impairment Method (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	$ 33,722	$ 35,798
Collectively evaluated for impairment	4,012,920	3,820,483
Total loans	4,046,642	3,856,281
Individually evaluated for impairment	2,568	4,080
Collectively evaluated for impairment	44,979	43,686
Total allowance for loan losses	47,547	47,766	$ 28,546	$ 26,399
Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	17,460	23,197
Collectively evaluated for impairment	2,397,327	2,158,355
Total loans	2,414,787	2,181,552
Individually evaluated for impairment	2,517	3,972
Collectively evaluated for impairment	30,760	28,037
Total allowance for loan losses	33,277	32,009	17,509	13,158
Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	4,781	2,933
Collectively evaluated for impairment	1,172,192	1,153,735
Total loans	1,176,973	1,156,668
Individually evaluated for impairment	12	12
Collectively evaluated for impairment	12,887	13,851
Total allowance for loan losses	12,899	13,863	9,645	11,774
Residential real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	11,479	9,630
Collectively evaluated for impairment	425,637	494,198
Total loans	437,116	503,828
Individually evaluated for impairment	39	96
Collectively evaluated for impairment	1,097	1,510
Total allowance for loan losses	1,136	1,606	1,056	1,201
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	2	38
Collectively evaluated for impairment	17,764	14,195
Total loans	17,766	14,233
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	235	288
Total allowance for loan losses	$ 235	$ 288	$ 336	$ 266