Loans (Credit Quality Indicators Vintage) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	$ 1,205,615	$ 1,293,402
Term loans amortized cost, prior year	1,171,641	656,955
Term loans amortized cost, two years ago	543,249	564,863
Term loans amortized cost, three years ago	426,493	420,321
Term loans amortized cost, four years ago	370,280	318,804
Term loans amortized cost, five years ago or more	782,394	696,758
Revolving loans amortized cost	338,536	310,068
Revolving loans converted to term loans	10,665	11,754
Total	4,848,873	4,272,925
Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	475,577	426,794
Term loans amortized cost, prior year	376,356	214,096
Term loans amortized cost, two years ago	176,306	294,922
Term loans amortized cost, three years ago	206,540	237,281
Term loans amortized cost, four years ago	195,336	170,091
Term loans amortized cost, five years ago or more	327,337	286,341
Revolving loans amortized cost	3,769	7,335
Revolving loans converted to term loans	1,466	2,202
Total	1,762,687	1,639,062
Commercial Real Estate | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	461,435	417,705
Term loans amortized cost, prior year	354,011	212,649
Term loans amortized cost, two years ago	175,390	260,940
Term loans amortized cost, three years ago	193,425	206,164
Term loans amortized cost, four years ago	175,084	163,132
Term loans amortized cost, five years ago or more	316,290	266,067
Revolving loans amortized cost	3,579	7,015
Revolving loans converted to term loans	1,466	2,202
Total	1,680,680	1,535,874
Commercial Real Estate | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	14,142	9,089
Term loans amortized cost, prior year	22,345	489
Term loans amortized cost, two years ago	406	33,982
Term loans amortized cost, three years ago	13,115	28,432
Term loans amortized cost, four years ago	17,567	0
Term loans amortized cost, five years ago or more	10,633	20,273
Revolving loans amortized cost	190	320
Revolving loans converted to term loans	0	0
Total	78,398	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	510	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	414	1
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Total	3,609	10,603
Commercial & Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	88,586	116,959
Term loans amortized cost, prior year	63,805	78,601
Term loans amortized cost, two years ago	76,341	105,433
Term loans amortized cost, three years ago	88,261	92,218
Term loans amortized cost, four years ago	95,684	57,774
Term loans amortized cost, five years ago or more	133,960	98,787
Revolving loans amortized cost	105,323	90,872
Revolving loans converted to term loans	798	911
Total	652,758	641,555
Commercial & Industrial | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	86,981	116,959
Term loans amortized cost, prior year	63,805	78,601
Term loans amortized cost, two years ago	76,341	104,827
Term loans amortized cost, three years ago	88,235	87,619
Term loans amortized cost, four years ago	94,240	51,579
Term loans amortized cost, five years ago or more	121,837	83,182
Revolving loans amortized cost	103,130	89,686
Revolving loans converted to term loans	798	911
Total	635,367	613,364
Commercial & Industrial | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	1,605	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	0	4,599
Term loans amortized cost, four years ago	1,444	6,195
Term loans amortized cost, five years ago or more	12,123	15,605
Revolving loans amortized cost	1,497	1,186
Revolving loans converted to term loans	0	0
Total	16,669	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	26	0
Term loans amortized cost, four years ago	0	0
Term loans amortized cost, five years ago or more	0	0
Revolving loans amortized cost	696	0
Revolving loans converted to term loans	0	0
Total	722	0
Residential Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	622,899	733,658
Term loans amortized cost, prior year	718,371	355,144
Term loans amortized cost, two years ago	285,018	159,307
Term loans amortized cost, three years ago	128,313	88,035
Term loans amortized cost, four years ago	76,896	89,128
Term loans amortized cost, five years ago or more	312,601	301,703
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Total	2,144,098	1,726,975
Residential Real Estate | Current [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	622,899	733,658
Term loans amortized cost, prior year	718,371	353,742
Term loans amortized cost, two years ago	283,621	158,140
Term loans amortized cost, three years ago	127,157	85,656
Term loans amortized cost, four years ago	74,789	88,365
Term loans amortized cost, five years ago or more	310,005	297,792
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Total	2,136,842	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	1,397	1,167
Term loans amortized cost, three years ago	1,156	2,379
Term loans amortized cost, four years ago	2,107	763
Term loans amortized cost, five years ago or more	2,596	3,911
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Total	7,256	9,622
Home Equity
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	15,354	10,434
Term loans amortized cost, prior year	8,709	5,850
Term loans amortized cost, two years ago	3,842	3,888
Term loans amortized cost, three years ago	2,643	2,380
Term loans amortized cost, four years ago	2,106	1,064
Term loans amortized cost, five years ago or more	3,509	3,837
Revolving loans amortized cost	229,178	211,603
Revolving loans converted to term loans	8,401	8,641
Total	273,742	247,697
Home Equity | Current [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	15,354	10,434
Term loans amortized cost, prior year	8,709	5,850
Term loans amortized cost, two years ago	3,842	3,703
Term loans amortized cost, three years ago	2,643	2,380
Term loans amortized cost, four years ago	2,106	1,064
Term loans amortized cost, five years ago or more	3,428	3,592
Revolving loans amortized cost	229,083	211,488
Revolving loans converted to term loans	8,326	8,421
Total	273,491	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	81	245
Revolving loans amortized cost	95	115
Revolving loans converted to term loans	75	220
Total	251	765
Other
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	3,199	5,557
Term loans amortized cost, prior year	4,400	3,264
Term loans amortized cost, two years ago	1,742	1,313
Term loans amortized cost, three years ago	736	407
Term loans amortized cost, four years ago	258	747
Term loans amortized cost, five years ago or more	4,987	6,090
Revolving loans amortized cost	266	258
Revolving loans converted to term loans	0	0
Total	15,588	17,636
Other | Current [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	3,182	5,536
Term loans amortized cost, prior year	4,400	3,264
Term loans amortized cost, two years ago	1,742	1,313
Term loans amortized cost, three years ago	736	407
Term loans amortized cost, four years ago	258	747
Term loans amortized cost, five years ago or more	4,987	6,090
Revolving loans amortized cost	266	258
Revolving loans converted to term loans	0	0
Total	15,571	17,615
Other | Past Due [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost, current year	17	21
Term loans amortized cost, prior year	0	0
Term loans amortized cost, two years ago	0	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	0	0
Revolving loans amortized cost	0	0
Revolving loans converted to term loans	0	0
Total	$ 17	$ 21