Loans (Residential, Home Equity and Consumer Loans Based on Payment Activity) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	$ 3,007,926	$ 3,091,998		$ 3,081,973
Consumer Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2021-2020	39,926	33,857
2020-2019	15,900	16,486
2019-2018	4,325	8,467
2018-2017	4,531	2,117
2017-2016	600	924
Prior	1,670	2,268
Revolving Loans Amortized Cost Basis	3,350	2,598
Loans	70,302	66,717	$ 69,264	81,217
Consumer Loans \| Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2021-2020	39,923	33,857
2020-2019	15,900	16,486
2019-2018	4,325	8,456
2018-2017	4,531	2,115
2017-2016	600	910
Prior	1,655	2,245
Revolving Loans Amortized Cost Basis	3,350	2,563
Loans	70,284	66,632
Consumer Loans \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021-2020	3	0
2020-2019	0	0
2019-2018	0	11
2018-2017	0	2
2017-2016	0	14
Prior	15	23
Revolving Loans Amortized Cost Basis	0	35
Loans	18	85
Home Equity Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2021-2020	0	0
2020-2019	0	0
2019-2018	0	34
2018-2017	21	46
2017-2016	0	67
Prior	836	490
Revolving Loans Amortized Cost Basis	221,668	218,711
Loans	222,525	219,348	225,790	225,755
Home Equity Loans \| Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2021-2020	0	0
2020-2019	0	0
2019-2018	0	34
2018-2017	21	46
2017-2016	0	67
Prior	835	490
Revolving Loans Amortized Cost Basis	221,644	218,440
Loans	222,500	219,077
Home Equity Loans \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021-2020	0	0
2020-2019	0	0
2019-2018	0	0
2018-2017	0	0
2017-2016	0	0
Prior	1	0
Revolving Loans Amortized Cost Basis	24	271
Loans	25	271
Residential Mortgage Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2021-2020	84,809	45,945
2020-2019	38,717	26,536
2019-2018	15,244	28,050
2018-2017	17,369	28,764
2017-2016	19,688	25,155
Prior	87,738	101,826
Revolving Loans Amortized Cost Basis	0	0
Loans	263,565	256,276	$ 305,002	$ 304,855
Residential Mortgage Loans \| Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2021-2020	84,809	45,945
2020-2019	38,717	26,536
2019-2018	15,244	28,050
2018-2017	17,369	28,764
2017-2016	19,688	25,155
Prior	87,164	100,998
Revolving Loans Amortized Cost Basis	0	0
Loans	262,991	255,448
Residential Mortgage Loans \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021-2020	0	0
2020-2019	0	0
2019-2018	0	0
2018-2017	0	0
2017-2016	0	0
Prior	574	828
Revolving Loans Amortized Cost Basis	0	0
Loans	$ 574	$ 828

Amount, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes financing receivable covered under loss sharing agreement.

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