Loans - Credit Quality Indicators (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 2,639,243	$ 2,595,030	$ 2,414,193
Total Loans	2,612,403	2,565,798	2,390,556
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	78,184
2020	136,599
2019	18,268
2018	15,693
2017	10,004
Prior	15,750
Revolving Loans Amortized Cost Basis	14,053
Revolving Loan Converted to Term	0
Total	288,551
Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	26,532
2020	327,585
2019	55,973
2018	45,065
2017	24,700
Prior	98,466
Revolving Loans Amortized Cost Basis	3,186
Revolving Loan Converted to Term	0
Total	581,507
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	95,223
2020	321,716
2019	225,372
2018	135,835
2017	56,675
Prior	25,902
Revolving Loans Amortized Cost Basis	448
Revolving Loan Converted to Term	0
Total	861,171	859,768	824,709
Mortgage loans in process of foreclosure, amount	1,400
Residential
Financing Receivable, Credit Quality Indicator [Line Items]
2021	34,833
2020	156,703
2019	114,523
2018	107,203
2017	110,457
Prior	268,921
Revolving Loans Amortized Cost Basis	115,374
Revolving Loan Converted to Term	0
Total	908,014	922,921	916,254
Satisfactory
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans		754,960	637,461
Satisfactory | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	78,184
2020	126,061
2019	18,202
2018	15,693
2017	10,004
Prior	12,234
Revolving Loans Amortized Cost Basis	14,006
Revolving Loan Converted to Term	0
Total	274,384
Total Loans		229,351	140,218
Satisfactory | Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	24,511
2020	298,907
2019	49,957
2018	44,902
2017	24,558
Prior	83,690
Revolving Loans Amortized Cost Basis	3,161
Revolving Loan Converted to Term	0
Total	529,686
Total Loans		525,609	497,243
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans		17,787	283
Special Mention | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	5,031
2019	66
2018	0
2017	0
Prior	2
Revolving Loans Amortized Cost Basis	0
Revolving Loan Converted to Term	0
Total	5,099
Total Loans		1,574	28
Special Mention | Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	17,825
2019	2,010
2018	0
2017	142
Prior	2,115
Revolving Loans Amortized Cost Basis	0
Revolving Loan Converted to Term	0
Total	22,092
Total Loans		16,213	255
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans		39,594	35,486
Substandard | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	5,507
2019	0
2018	0
2017	0
Prior	3,514
Revolving Loans Amortized Cost Basis	47
Revolving Loan Converted to Term	0
Total	9,068
Total Loans		9,629	6,854
Substandard | Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	2,021
2020	10,853
2019	4,006
2018	163
2017	0
Prior	12,661
Revolving Loans Amortized Cost Basis	25
Revolving Loan Converted to Term	0
Total	29,729
Total Loans		29,965	28,632
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans		0	0
Doubtful | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loan Converted to Term	0
Total	0
Total Loans		0	0
Doubtful | Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loan Converted to Term	0
Total	0
Total Loans		0	0
Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans		1,778,165	1,737,334
Performing | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	95,223
2020	321,575
2019	225,191
2018	135,646
2017	56,508
Prior	25,834
Revolving Loans Amortized Cost Basis	448
Revolving Loan Converted to Term	0
Total	860,425
Total Loans		858,298	823,901
Performing | Residential
Financing Receivable, Credit Quality Indicator [Line Items]
2021	34,833
2020	156,500
2019	114,523
2018	107,176
2017	110,308
Prior	266,377
Revolving Loans Amortized Cost Basis	115,142
Revolving Loan Converted to Term	0
Total	904,859
Total Loans		919,867	913,433
Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans		4,524	3,629
Nonperforming | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	141
2019	181
2018	189
2017	167
Prior	68
Revolving Loans Amortized Cost Basis	0
Revolving Loan Converted to Term	0
Total	746
Total Loans		1,470	808
Nonperforming | Residential
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	203
2019	0
2018	27
2017	149
Prior	2,544
Revolving Loans Amortized Cost Basis	232
Revolving Loan Converted to Term	0
Total	$ 3,155
Total Loans		$ 3,054	$ 2,821