Loans (Credit Quality Indicators Vintage) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Term loans amortized cost, current fiscal year	$ 1,293,402	$ 1,058,859
Term loans amortized cost, one year before current fiscal year	656,955	734,581
Term loans amortized cost, two years before current fiscal year	564,863	554,968
Term loans amortized cost, three years before current fiscal year	420,321	476,043
Term loans amortized cost, four years before current fiscal year	318,804	325,496
Term loans amortized cost, five years or more before current fiscal year	696,758	699,479
Revolving loans amortized cost	310,068	330,433
Revolving loans converted to term loans	11,754	16,131
Loan portfolios	4,272,925	4,195,990
Commercial Real Estate [Member]
Term loans amortized cost, current fiscal year	426,794	285,054
Term loans amortized cost, one year before current fiscal year	214,096	374,110
Term loans amortized cost, two years before current fiscal year	294,922	300,304
Term loans amortized cost, three years before current fiscal year	237,281	252,532
Term loans amortized cost, four years before current fiscal year	170,091	147,808
Term loans amortized cost, five years or more before current fiscal year	286,341	259,726
Revolving loans amortized cost	7,335	11,104
Revolving loans converted to term loans	2,202	2,386
Loan portfolios	1,639,062	1,633,024
Commercial Real Estate [Member] | Pass
Term loans amortized cost, current fiscal year	417,705	283,341
Term loans amortized cost, one year before current fiscal year	212,649	353,875
Term loans amortized cost, two years before current fiscal year	260,940	260,917
Term loans amortized cost, three years before current fiscal year	206,164	236,310
Term loans amortized cost, four years before current fiscal year	163,132	136,490
Term loans amortized cost, five years or more before current fiscal year	266,067	249,359
Revolving loans amortized cost	7,015	10,333
Revolving loans converted to term loans	2,202	2,386
Loan portfolios	1,535,874	1,533,011
Commercial Real Estate [Member] | Special Mention
Term loans amortized cost, current fiscal year	9,089	756
Term loans amortized cost, one year before current fiscal year	489	20,235
Term loans amortized cost, two years before current fiscal year	33,982	39,387
Term loans amortized cost, three years before current fiscal year	28,432	16,222
Term loans amortized cost, four years before current fiscal year	0	11,318
Term loans amortized cost, five years or more before current fiscal year	20,273	10,367
Revolving loans amortized cost	320	771
Revolving loans converted to term loans	0	0
Loan portfolios	92,585	99,056
Commercial Real Estate [Member] | Classified
Term loans amortized cost, current fiscal year	0	957
Term loans amortized cost, one year before current fiscal year	958	0
Term loans amortized cost, two years before current fiscal year	0	0
Term loans amortized cost, three years before current fiscal year	2,685	0
Term loans amortized cost, four years before current fiscal year	6,959	0
Term loans amortized cost, five years or more before current fiscal year	1	0
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Loan portfolios	10,603	957
Commercial & Industrial [Member]
Term loans amortized cost, current fiscal year	116,959	295,019
Term loans amortized cost, one year before current fiscal year	78,601	96,497
Term loans amortized cost, two years before current fiscal year	105,433	101,356
Term loans amortized cost, three years before current fiscal year	92,218	63,631
Term loans amortized cost, four years before current fiscal year	57,774	47,586
Term loans amortized cost, five years or more before current fiscal year	98,787	112,344
Revolving loans amortized cost	90,872	99,623
Revolving loans converted to term loans	911	1,352
Loan portfolios	641,555	817,408
Commercial & Industrial [Member] | Pass
Term loans amortized cost, current fiscal year	116,959	293,493
Term loans amortized cost, one year before current fiscal year	78,601	95,775
Term loans amortized cost, two years before current fiscal year	104,827	98,146
Term loans amortized cost, three years before current fiscal year	87,619	56,792
Term loans amortized cost, four years before current fiscal year	51,579	44,445
Term loans amortized cost, five years or more before current fiscal year	83,182	91,128
Revolving loans amortized cost	89,686	95,817
Revolving loans converted to term loans	911	1,296
Loan portfolios	613,364	776,892
Commercial & Industrial [Member] | Special Mention
Term loans amortized cost, current fiscal year	0	1,123
Term loans amortized cost, one year before current fiscal year	0	722
Term loans amortized cost, two years before current fiscal year	606	3,210
Term loans amortized cost, three years before current fiscal year	4,599	6,839
Term loans amortized cost, four years before current fiscal year	6,195	3,141
Term loans amortized cost, five years or more before current fiscal year	15,605	14,853
Revolving loans amortized cost	1,186	3,806
Revolving loans converted to term loans	0	56
Loan portfolios	28,191	33,750
Commercial & Industrial [Member] | Classified
Term loans amortized cost, current fiscal year	0	403
Term loans amortized cost, one year before current fiscal year	0	0
Term loans amortized cost, two years before current fiscal year	0	0
Term loans amortized cost, three years before current fiscal year	0	0
Term loans amortized cost, four years before current fiscal year	0	0
Term loans amortized cost, five years or more before current fiscal year	0	6,363
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Loan portfolios	0	6,766
Residential Real Estate [Member]
Term loans amortized cost, current fiscal year	733,658	463,715
Term loans amortized cost, one year before current fiscal year	355,144	254,926
Term loans amortized cost, two years before current fiscal year	159,307	148,149
Term loans amortized cost, three years before current fiscal year	88,035	156,862
Term loans amortized cost, four years before current fiscal year	89,128	128,249
Term loans amortized cost, five years or more before current fiscal year	301,703	315,411
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Loan portfolios	1,726,975	1,467,312
Residential Real Estate [Member] | Current
Term loans amortized cost, current fiscal year	733,658	463,477
Term loans amortized cost, one year before current fiscal year	353,742	253,228
Term loans amortized cost, two years before current fiscal year	158,140	146,839
Term loans amortized cost, three years before current fiscal year	85,656	155,976
Term loans amortized cost, four years before current fiscal year	88,365	128,139
Term loans amortized cost, five years or more before current fiscal year	297,792	309,314
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Loan portfolios	1,717,353	1,456,973
Residential Real Estate [Member] | Past Due
Term loans amortized cost, current fiscal year	0	238
Term loans amortized cost, one year before current fiscal year	1,402	1,698
Term loans amortized cost, two years before current fiscal year	1,167	1,310
Term loans amortized cost, three years before current fiscal year	2,379	886
Term loans amortized cost, four years before current fiscal year	763	110
Term loans amortized cost, five years or more before current fiscal year	3,911	6,097
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Loan portfolios	9,622	10,339
Home Equity [Member]
Term loans amortized cost, current fiscal year	10,434	9,838
Term loans amortized cost, one year before current fiscal year	5,850	6,806
Term loans amortized cost, two years before current fiscal year	3,888	3,922
Term loans amortized cost, three years before current fiscal year	2,380	1,474
Term loans amortized cost, four years before current fiscal year	1,064	1,217
Term loans amortized cost, five years or more before current fiscal year	3,837	4,141
Revolving loans amortized cost	211,603	219,395
Revolving loans converted to term loans	8,641	12,392
Loan portfolios	247,697	259,185
Home Equity [Member] | Current
Term loans amortized cost, current fiscal year	10,434	9,838
Term loans amortized cost, one year before current fiscal year	5,850	6,771
Term loans amortized cost, two years before current fiscal year	3,703	3,898
Term loans amortized cost, three years before current fiscal year	2,380	1,474
Term loans amortized cost, four years before current fiscal year	1,064	1,217
Term loans amortized cost, five years or more before current fiscal year	3,592	3,955
Revolving loans amortized cost	211,488	219,085
Revolving loans converted to term loans	8,421	11,280
Loan portfolios	246,932	257,518
Home Equity [Member] | Past Due
Term loans amortized cost, current fiscal year	0	0
Term loans amortized cost, one year before current fiscal year	0	35
Term loans amortized cost, two years before current fiscal year	185	24
Term loans amortized cost, three years before current fiscal year	0	0
Term loans amortized cost, four years before current fiscal year	0	0
Term loans amortized cost, five years or more before current fiscal year	245	186
Revolving loans amortized cost	115	310
Revolving loans converted to term loans	220	1,112
Loan portfolios	765	1,667
Other Consumer [Member]
Term loans amortized cost, current fiscal year	5,557	5,233
Term loans amortized cost, one year before current fiscal year	3,264	2,242
Term loans amortized cost, two years before current fiscal year	1,313	1,237
Term loans amortized cost, three years before current fiscal year	407	1,544
Term loans amortized cost, four years before current fiscal year	747	636
Term loans amortized cost, five years or more before current fiscal year	6,090	7,857
Revolving loans amortized cost	258	311
Revolving loans converted to term loans	0	1
Loan portfolios	17,636	19,061
Other Consumer [Member] | Current
Term loans amortized cost, current fiscal year	5,536	5,214
Term loans amortized cost, one year before current fiscal year	3,264	2,241
Term loans amortized cost, two years before current fiscal year	1,313	1,237
Term loans amortized cost, three years before current fiscal year	407	1,544
Term loans amortized cost, four years before current fiscal year	747	548
Term loans amortized cost, five years or more before current fiscal year	6,090	7,850
Revolving loans amortized cost	258	308
Revolving loans converted to term loans	0	1
Loan portfolios	17,615	18,943
Other Consumer [Member] | Past Due
Term loans amortized cost, current fiscal year	21	19
Term loans amortized cost, one year before current fiscal year	0	1
Term loans amortized cost, two years before current fiscal year	0	0
Term loans amortized cost, three years before current fiscal year	0	0
Term loans amortized cost, four years before current fiscal year	0	88
Term loans amortized cost, five years or more before current fiscal year	0	7
Revolving loans amortized cost	0	3
Revolving loans converted to term loans	0	0
Loan portfolios	$ 21	$ 118