Loans - Residential, Home Equity and Consumer Loans Based on Payment Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 3,830,481		$ 3,830,481		$ 3,788,645
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Total	849	$ 447	2,087	$ 816
Consumer Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2023-2022	29,474		29,474		42,688
2022-2021	32,605		32,605		22,727
2021-2020	13,574		13,574		5,822
2020-2019	4,116		4,116		2,402
2019-2018	1,412		1,412		1,545
Prior	2,457		2,457		1,563
Revolving Loans Amortized Cost Basis	1,957		1,957		3,157
Total	85,595		85,595		79,904
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
2023			554
2022			24
2021			20
2020			19
2019			3
Prior			1
Revolving Loans Amortized Cost Basis			7
Total	284	322	628	532
Consumer Loans | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2023-2022	29,474		29,474		42,685
2022-2021	32,598		32,598		22,708
2021-2020	13,564		13,564		5,610
2020-2019	4,116		4,116		2,394
2019-2018	1,412		1,412		1,543
Prior	2,456		2,456		1,553
Revolving Loans Amortized Cost Basis	1,957		1,957		3,157
Total	85,577		85,577		79,650
Consumer Loans | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2023-2022	0		0		3
2022-2021	7		7		19
2021-2020	10		10		212
2020-2019	0		0		8
2019-2018	0		0		2
Prior	1		1		10
Revolving Loans Amortized Cost Basis	0		0		0
Total	18		18		254
Home Equity Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2023-2022	0		0		63
2022-2021	115		115		20
2021-2020	338		338		0
2020-2019	90		90		0
2019-2018	68		68		19
Prior	1,059		1,059		592
Revolving Loans Amortized Cost Basis	282,847		282,847		279,054
Total	284,517		284,517		279,748
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			24
Revolving Loans Amortized Cost Basis			15
Total	25	15	39	52
Home Equity Loans | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2023-2022	0		0		63
2022-2021	75		75		0
2021-2020	86		86		0
2020-2019	90		90		0
2019-2018	24		24		0
Prior	960		960		591
Revolving Loans Amortized Cost Basis	282,779		282,779		278,784
Total	284,014		284,014		279,438
Home Equity Loans | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2023-2022	0		0		0
2022-2021	40		40		20
2021-2020	252		252		0
2020-2019	0		0		0
2019-2018	44		44		19
Prior	99		99		1
Revolving Loans Amortized Cost Basis	68		68		270
Total	503		503		310
Residential Mortgage Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2023-2022	28,513		28,513		69,982
2022-2021	68,601		68,601		97,337
2021-2020	90,641		90,641		47,104
2020-2019	43,715		43,715		20,080
2019-2018	18,995		18,995		16,742
Prior	104,864		104,864		99,437
Revolving Loans Amortized Cost Basis	0		0		0
Total	355,329		355,329		350,682
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
2023			0
2022			0
2021			21
2020			36
2019			0
Prior			0
Revolving Loans Amortized Cost Basis			0
Total	31	3	57	3
Residential Mortgage Loans | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2023-2022	28,513		28,513		69,982
2022-2021	68,601		68,601		97,176
2021-2020	90,501		90,501		46,851
2020-2019	43,591		43,591		20,080
2019-2018	18,887		18,887		16,664
Prior	104,460		104,460		98,699
Revolving Loans Amortized Cost Basis	0		0		0
Total	354,553		354,553		349,452
Residential Mortgage Loans | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2023-2022	0		0		0
2022-2021	0		0		161
2021-2020	140		140		253
2020-2019	124		124		0
2019-2018	108		108		78
Prior	404		404		738
Revolving Loans Amortized Cost Basis	0		0		0
Total	776		776		1,230
Commercial and Industrial Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2023-2022	54,353		54,353		158,088
2022-2021	147,408		147,408		123,425
2021-2020	103,240		103,240		41,375
2020-2019	34,807		34,807		47,887
2019-2018	41,322		41,322		20,002
Prior	64,378		64,378		56,065
Revolving Loans Amortized Cost Basis	162,776		162,776		173,264
Total	608,284		608,284		$ 620,106
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
2023			0
2022			861
2021			32
2020			33
2019			0
Prior			50
Revolving Loans Amortized Cost Basis			101
Total	$ 343	$ 56	$ 1,077	$ 61