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Loans and Allowance for Credit Losses on Loans - Schedule of Collateral-Dependent Non-Accrual Loans (Details) - USD ($)	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	$ 22,547,000	$ 23,023,000	$ 19,958,000	$ 22,874,000
Weighted average ratio of loans value to collateral dependent loans value	69.00%	67.00%
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	$ 7,272,000	$ 7,963,000
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	390,000	413,000
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	16,000	0
Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	7,678,000	8,376,000
Allowance for credit losses	0	0
Nonaccrual collateral dependent loans in process of foreclosure	0	0
Commercial real estate loans | Commercial owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	2,622,000	2,776,000	2,304,000	2,778,000
Commercial real estate loans | Commercial owner-occupied | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	7,272,000	7,269,000
Commercial real estate loans | Commercial owner-occupied | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	0	0
Commercial real estate loans | Commercial owner-occupied | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	0	0
Commercial real estate loans | Commercial owner-occupied | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	7,272,000	7,269,000
Allowance for credit losses	0	0
Commercial real estate loans | Commercial investor-owned
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	12,301,000	12,739,000	10,856,000	12,682,000
Commercial real estate loans | Commercial investor-owned | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual		694,000
Commercial real estate loans | Commercial investor-owned | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual		0
Commercial real estate loans | Commercial investor-owned | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual		0
Commercial real estate loans | Commercial investor-owned | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual		694,000
Allowance for credit losses		0
Commercial real estate loans | Installment and other consumer loans | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	0
Commercial real estate loans | Installment and other consumer loans | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	0
Commercial real estate loans | Installment and other consumer loans | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	16,000
Commercial real estate loans | Installment and other consumer loans | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	16,000
Allowance for credit losses	0
Residential loans | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	549,000	595,000	$ 520,000	$ 738,000
Residential loans | Home equity | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	0	0
Residential loans | Home equity | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	390,000	413,000
Residential loans | Home equity | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	0	0
Residential loans | Home equity | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	390,000	413,000
Allowance for credit losses	$ 0	$ 0

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