Loans and the Allowance for Credit Losses - Loans Receivable Disaggregated by Credit Quality Indicator (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Residential Mortgage
Financing Receivable Recorded Investment [Line Items]
2023	$ 9,324	$ 314,599
2022	320,381	511,217
2021	500,238	276,904
2020	273,086	113,566
2019	111,496	78,304
Prior	417,226	354,248
Total	1,631,751	1,648,838
Residential Mortgage | Current
Financing Receivable Recorded Investment [Line Items]
2023	9,324	314,599
2022	320,381	511,217
2021	500,035	276,698
2020	271,806	113,251
2019	106,535	77,620
Prior	417,226	350,098
Total	1,625,307	1,643,483
Residential Mortgage | Non-Performing Loans
Financing Receivable Recorded Investment [Line Items]
2021	203	206
2020	1,280	315
2019	4,961	684
Prior		4,150
Total	6,444	5,355
Home Equity
Financing Receivable Recorded Investment [Line Items]
2023	1,211	3,611
2022	1,281
2020	453	58
2019	1,711	360
Prior	24,462	481
Revolving loans amortized cost basis	72,597	106,841
Total	101,715	111,351
Home Equity | Current
Financing Receivable Recorded Investment [Line Items]
2023	1,211	3,611
2022	1,281
2020	453	58
2019	1,662	360
Prior	24,120	481
Revolving loans amortized cost basis	72,597	106,119
Total	101,324	110,629
Home Equity | Non-Performing Loans
Financing Receivable Recorded Investment [Line Items]
2019	49
Prior	342
Revolving loans amortized cost basis		722
Total	391	722
Consumer
Financing Receivable Recorded Investment [Line Items]
2023	2,538	13,214
2022	12,367	8,482
2021	6,815	5,353
2020	2,904	444
2019	336	2,078
Prior	9,396	7,424
Revolving loans amortized cost basis	556	599
Total	34,912	37,594
Current period gross writeoffs	(3)
Consumer | Current
Financing Receivable Recorded Investment [Line Items]
2023	2,538	13,214
2022	12,367	8,482
2021	6,815	5,353
2020	2,904	444
2019	336	2,078
Prior	9,396	7,424
Revolving loans amortized cost basis	556	599
Total	34,912	37,594
Commercial Mortgage
Financing Receivable Recorded Investment [Line Items]
2023	15,184	411,927
2022	423,525	330,593
2021	339,029	226,635
2020	221,147	302,166
2019	296,327	147,095
Prior	610,806	496,007
Total	1,906,018	1,914,423
Commercial Mortgage | 1-6 (Pass)
Financing Receivable Recorded Investment [Line Items]
2023	13,330	411,927
2022	423,525	330,593
2021	339,029	222,073
2020	218,625	260,588
2019	251,236	125,398
Prior	583,054	489,564
Total	1,828,799	1,840,143
Commercial Mortgage | 7 (Special Mention)
Financing Receivable Recorded Investment [Line Items]
2023	1,854
2022
2021		4,562
2020	2,522	41,578
2019	45,091	21,697
Prior	27,446	6,132
Total	76,913	73,969
Commercial Mortgage | 8 (Substandard)
Financing Receivable Recorded Investment [Line Items]
Prior	306	311
Total	306	311
Commercial and Industrial
Financing Receivable Recorded Investment [Line Items]
2023	15,456	128,301
2022	128,416	71,938
2021	54,354	62,783
2020	66,297	30,820
2019	27,924	19,282
Prior	50,731	37,041
Revolving loans amortized cost basis	508	485
Total	343,686	350,650
Current period gross writeoffs	11
Commercial and Industrial | 1-6 (Pass)
Financing Receivable Recorded Investment [Line Items]
2023	15,426	128,301
2022	128,416	67,727
2021	54,174	62,025
2020	65,575	28,557
2019	25,706	18,794
Prior	50,450	36,836
Revolving loans amortized cost basis	498	475
Total	340,245	342,715
Commercial and Industrial | 7 (Special Mention)
Financing Receivable Recorded Investment [Line Items]
2023	30	0
2022		4,211
2021	180	130
2020	115	161
2019	212	407
Prior	126	121
Revolving loans amortized cost basis	10	10
Total	673	5,040
Commercial and Industrial | 8 (Substandard)
Financing Receivable Recorded Investment [Line Items]
2021		628
2020	607	2,102
2019	2,006	81
Prior	155	84
Total	$ 2,768	$ 2,895