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Loans and Allowance for Credit Losses - Financial Impact of Modifications (Details) | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Commercial Loans | Commercial real estate |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted-Average Term Extension (in months) | 1 month | 4 months
Weighted-Average Interest Rate Reduction |  | 0.00%
Financing Receivable, Modified, Weighted Average Term Increase And Payment Delays | 22 months |
Commercial Loans | Commercial and industrial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted-Average Term Extension (in months) | 10 months | 5 months
Weighted-Average Interest Rate Reduction |  | 0.00%
Weighted-Average Payment Deferral (in months) | 6 months |
Business banking |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted-Average Term Extension (in months) |  | 19 months
Weighted-Average Interest Rate Reduction |  | 0.00%
Consumer Loans | Consumer real estate |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted-Average Term Extension (in months) | 101 months | 168 months
Weighted-Average Interest Rate Reduction |  | 2.00%

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