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Loans, Allowance for Credit Losses and Credit Quality - Financial Effects of Loan Modifications (Details) | 3 Months Ended
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Mar. 31, 2023
Commercial Real Estate [Member] | Term Extension |
Financing Receivable, Troubled Debt Restructuring [Line Items] |
Added weighted-average contractual term to the life of the loan | 2 months
Small Business [Member] | Term Extension |
Financing Receivable, Troubled Debt Restructuring [Line Items] |
Added weighted-average contractual term to the life of the loan | 4 years 3 months 18 days
Small Business [Member] | Interest Rate Reduction | Maximum [Member] |
Financing Receivable, Troubled Debt Restructuring [Line Items] |
Reduced weighted-average contractual interest rate | 10.00%
Small Business [Member] | Interest Rate Reduction | Minimum [Member] |
Financing Receivable, Troubled Debt Restructuring [Line Items] |
Reduced weighted-average contractual interest rate | 6.50%

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