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Loans and Allowance for Credit Losses - Amortized Cost of Loans to Borrowers, Modified (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period | $ 28,894 | $ 12,705 | $ 38,936 | $ 34,651
% of Portfolio Segment | 0.36% | 0.17% | 0.49% | 0.45%
Term Extension |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period | $ 28,894 | $ 12,705 | $ 36,944 | $ 22,311
Payment Delays (Other Than Insignificant) |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period |  |  | 0 | 12,340
Term Extension and Interest Rate Reduction |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period |  |  | 1,992 | 0
Commercial loans | Commercial real estate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period | $ 14,574 | $ 12,482 | $ 14,574 | $ 12,482
% of Portfolio Segment | 0.49% | 0.47% | 0.49% | 0.47%
Commercial loans | Commercial real estate | Term Extension |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period | $ 14,574 | $ 12,482 | $ 14,574 | $ 12,482
Commercial loans | Commercial real estate | Payment Delays (Other Than Insignificant) |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period |  |  | 0 | 0
Commercial loans | Commercial real estate | Term Extension and Interest Rate Reduction |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period |  |  | 0 | 0
Commercial loans | Commercial and industrial |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period | $ 14,320 |  | $ 24,089 | $ 21,839
% of Portfolio Segment | 1.12% |  | 1.89% | 1.60%
Commercial loans | Commercial and industrial | Term Extension |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period | $ 14,320 |  | $ 22,097 | $ 9,499
Commercial loans | Commercial and industrial | Payment Delays (Other Than Insignificant) |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period |  |  | 0 | 12,340
Commercial loans | Commercial and industrial | Term Extension and Interest Rate Reduction |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period |  |  | 1,992 | 0
Consumer loans | Consumer real estate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period |  | $ 223 | $ 273 | $ 330
% of Portfolio Segment |  | 0.01% | 0.01% | 0.02%
Consumer loans | Consumer real estate | Term Extension |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period |  | $ 223 | $ 273 | $ 330
Consumer loans | Consumer real estate | Payment Delays (Other Than Insignificant) |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period |  |  | 0 | 0
Consumer loans | Consumer real estate | Term Extension and Interest Rate Reduction |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing receivable, modified in period |  |  | $ 0 | $ 0

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