Loans - Recorded Investment in Residential, Consumer and Credit Card Loans Based on Payment Activity (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Jan. 01, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans			$ 2,804,035
Loans	$ 3,634,792	$ 3,371,789
1-4 Family Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans			0
Loans	37,822	27,768
Home equity lines of credit
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans			0
Loans	104,517	109,444
Residential Mortgages secured by first liens
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans			0
Loans	826,729	777,030
Residential Mortgages secured by junior liens
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans			0
Loans	56,689	53,726
Other revolving credit plans
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans			0
Loans	26,536	25,507
Automobile
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans			0
Loans	20,862	25,344
Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans			$ 0
Loans	49,676	42,792
Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	1,117,706	1,055,812
Loans	1,117,706	1,055,812
Performing | 1-4 Family Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	37,822	27,768
Loans	37,822	27,768
Performing | Home equity lines of credit
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	103,693	108,759
Loans	103,693	108,759
Performing | Residential Mortgages secured by first liens
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	823,182	772,572
Loans	823,182	772,572
Performing | Residential Mortgages secured by junior liens
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	56,542	53,612
Loans	56,542	53,612
Performing | Other revolving credit plans
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	26,523	25,501
Loans	26,523	25,501
Performing | Automobile
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	20,826	25,312
Loans	20,826	25,312
Performing | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	49,118	42,288
Loans	49,118	42,288
Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	5,125	5,799
Loans	5,125	5,799
Nonperforming | 1-4 Family Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	0	0
Loans	0	0
Nonperforming | Home equity lines of credit
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	824	685
Loans	824	685
Nonperforming | Residential Mortgages secured by first liens
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	3,547	4,458
Loans	3,547	4,458
Nonperforming | Residential Mortgages secured by junior liens
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	147	114
Loans	147	114
Nonperforming | Other revolving credit plans
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	13	6
Loans	13	6
Nonperforming | Automobile
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	36	32
Loans	36	32
Nonperforming | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	558	504
Loans	558	504
Total
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	1,122,831	1,061,611
Loans	1,122,831	1,061,611
Total | 1-4 Family Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	37,822	27,768
Loans	37,822	27,768
Total | Home equity lines of credit
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	104,517	109,444
Loans	104,517	109,444
Total | Residential Mortgages secured by first liens
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	826,729	777,030
Loans	826,729	777,030
Total | Residential Mortgages secured by junior liens
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	56,689	53,726
Loans	56,689	53,726
Total | Other revolving credit plans
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	26,536	25,507
Loans	26,536	25,507
Total | Automobile
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	20,862	25,344
Loans	20,862	25,344
Total | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Net loans	49,676	42,792
Loans	$ 49,676	$ 42,792