Loans (Credit Quality Indicators Vintage) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	$ 303,717	$ 1,293,402
Term loans amortized cost, prior year	1,228,983	656,955
Term loans amortized cost, two years ago	611,515	564,863
Term loans amortized cost, three years ago	496,157	420,321
Term loans amortized cost, four years ago	406,239	318,804
Term loans amortized cost, five years ago or more	912,622	696,758
Revolving loans amortized cost	313,867	310,068
Revolving loans converted to term loans	10,752	11,754
Total	4,283,852	4,272,925
Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	138,105	426,794
Term loans amortized cost, prior year	399,995	214,096
Term loans amortized cost, two years ago	211,203	294,922
Term loans amortized cost, three years ago	243,633	237,281
Term loans amortized cost, four years ago	221,135	170,091
Term loans amortized cost, five years ago or more	404,449	286,341
Revolving loans amortized cost	8,483	7,335
Revolving loans converted to term loans	1,617	2,202
Total	1,628,620	1,639,062
Commercial Real Estate | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	138,105	417,705
Term loans amortized cost, prior year	390,948	212,649
Term loans amortized cost, two years ago	209,963	260,940
Term loans amortized cost, three years ago	230,338	206,164
Term loans amortized cost, four years ago	208,730	163,132
Term loans amortized cost, five years ago or more	384,605	266,067
Revolving loans amortized cost	8,206	7,015
Revolving loans converted to term loans	1,617	2,202
Total	1,572,512	1,535,874
Commercial Real Estate | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	0	9,089
Term loans amortized cost, prior year	9,047	489
Term loans amortized cost, two years ago	291	33,982
Term loans amortized cost, three years ago	13,295	28,432
Term loans amortized cost, four years ago	9,720	0
Term loans amortized cost, five years ago or more	12,885	20,273
Revolving loans amortized cost	277	320
Revolving loans converted to term loans	0	0
Total	45,515	92,585
Commercial Real Estate | Classified [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	0	0
Term loans amortized cost, prior year	0	958
Term loans amortized cost, two years ago	949	0
Term loans amortized cost, three years ago	0	2,685
Term loans amortized cost, four years ago	2,685	6,959
Term loans amortized cost, five years ago or more	6,959	1
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Total	10,593	10,603
Commercial & Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	10,123	116,959
Term loans amortized cost, prior year	85,132	78,601
Term loans amortized cost, two years ago	78,438	105,433
Term loans amortized cost, three years ago	102,884	92,218
Term loans amortized cost, four years ago	99,133	57,774
Term loans amortized cost, five years ago or more	144,858	98,787
Revolving loans amortized cost	93,437	90,872
Revolving loans converted to term loans	887	911
Total	614,892	641,555
Commercial & Industrial | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	9,593	116,959
Term loans amortized cost, prior year	85,132	78,601
Term loans amortized cost, two years ago	78,438	104,827
Term loans amortized cost, three years ago	102,252	87,619
Term loans amortized cost, four years ago	94,577	51,579
Term loans amortized cost, five years ago or more	126,646	83,182
Revolving loans amortized cost	91,555	89,686
Revolving loans converted to term loans	887	911
Total	589,080	613,364
Commercial & Industrial | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	530	0
Term loans amortized cost, prior year	0	0
Term loans amortized cost, two years ago	0	606
Term loans amortized cost, three years ago	569	4,599
Term loans amortized cost, four years ago	4,556	6,195
Term loans amortized cost, five years ago or more	18,211	15,605
Revolving loans amortized cost	1,186	1,186
Revolving loans converted to term loans	0	0
Total	25,052	28,191
Commercial & Industrial | Classified [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	0	0
Term loans amortized cost, prior year	0	0
Term loans amortized cost, two years ago	0	0
Term loans amortized cost, three years ago	63	0
Term loans amortized cost, four years ago	0	0
Term loans amortized cost, five years ago or more	1	0
Revolving loans amortized cost	696	0
Revolving loans converted to term loans	0	0
Total	760	0
Residential Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	152,448	733,658
Term loans amortized cost, prior year	729,453	355,144
Term loans amortized cost, two years ago	314,351	159,307
Term loans amortized cost, three years ago	145,454	88,035
Term loans amortized cost, four years ago	83,243	89,128
Term loans amortized cost, five years ago or more	353,025	301,703
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Total	1,777,974	1,726,975
Residential Real Estate | Current [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	152,448	733,658
Term loans amortized cost, prior year	729,453	353,742
Term loans amortized cost, two years ago	312,951	158,140
Term loans amortized cost, three years ago	145,184	85,656
Term loans amortized cost, four years ago	80,870	88,365
Term loans amortized cost, five years ago or more	350,601	297,792
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Total	1,771,507	1,717,353
Residential Real Estate | Past Due [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	0	0
Term loans amortized cost, prior year	0	1,402
Term loans amortized cost, two years ago	1,400	1,167
Term loans amortized cost, three years ago	270	2,379
Term loans amortized cost, four years ago	2,373	763
Term loans amortized cost, five years ago or more	2,424	3,911
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Total	6,467	9,622
Home Equity
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	2,561	10,434
Term loans amortized cost, prior year	9,149	5,850
Term loans amortized cost, two years ago	4,703	3,888
Term loans amortized cost, three years ago	3,107	2,380
Term loans amortized cost, four years ago	2,412	1,064
Term loans amortized cost, five years ago or more	4,224	3,837
Revolving loans amortized cost	211,693	211,603
Revolving loans converted to term loans	8,248	8,641
Total	246,097	247,697
Home Equity | Current [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	2,561	10,434
Term loans amortized cost, prior year	9,149	5,850
Term loans amortized cost, two years ago	4,703	3,703
Term loans amortized cost, three years ago	3,107	2,380
Term loans amortized cost, four years ago	2,412	1,064
Term loans amortized cost, five years ago or more	4,040	3,592
Revolving loans amortized cost	211,618	211,488
Revolving loans converted to term loans	8,076	8,421
Total	245,666	246,932
Home Equity | Past Due [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	0	0
Term loans amortized cost, prior year	0	0
Term loans amortized cost, two years ago	0	185
Term loans amortized cost, three years ago	0	0
Term loans amortized cost, four years ago	0	0
Term loans amortized cost, five years ago or more	184	245
Revolving loans amortized cost	75	115
Revolving loans converted to term loans	172	220
Total	431	765
Other
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	480	5,557
Term loans amortized cost, prior year	5,254	3,264
Term loans amortized cost, two years ago	2,820	1,313
Term loans amortized cost, three years ago	1,079	407
Term loans amortized cost, four years ago	316	747
Term loans amortized cost, five years ago or more	6,066	6,090
Revolving loans amortized cost	254	258
Revolving loans converted to term loans	0	0
Total	16,269	17,636
Other | Current [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	466	5,536
Term loans amortized cost, prior year	5,249	3,264
Term loans amortized cost, two years ago	2,811	1,313
Term loans amortized cost, three years ago	1,079	407
Term loans amortized cost, four years ago	316	747
Term loans amortized cost, five years ago or more	6,064	6,090
Revolving loans amortized cost	254	258
Revolving loans converted to term loans	0	0
Total	16,239	17,615
Other | Past Due [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	14	21
Term loans amortized cost, prior year	5	0
Term loans amortized cost, two years ago	9	0
Term loans amortized cost, three years ago	0	0
Term loans amortized cost, four years ago	0	0
Term loans amortized cost, five years ago or more	2	0
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Total	$ 30	$ 21