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Allowance for Credit Losses - Schedule of Loans for Borrowers Experiencing Financial Difficulties Modified (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2025 | Mar. 31, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | $ 19,821 | $ 3,122 | $ 32,117 | $ 25,976
Payments in Default |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 883 |  |
Post-modification loan balances, payments in default | 827 | 1,010 |  |
Extension of Term |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 18,787 | 1,929 |  |
Reduction of Interest Rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 183 |  |
Interest Only Payments |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 32 |  |  |
Extension of Term and Reduction of Interest Rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 1,002 | 127 |  |
Commercial | Commercial, industrial and other |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 18,948 | 1,629 | 29,487 | 16,011
Commercial | Commercial, industrial and other | Payments in Default |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 0 |  |
Post-modification loan balances, payments in default | 117 | 244 |  |
Commercial | Commercial, industrial and other | Extension of Term |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 18,624 | 1,502 |  |
Commercial | Commercial, industrial and other | Reduction of Interest Rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 0 |  |
Commercial | Commercial, industrial and other | Interest Only Payments |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 32 |  |  |
Commercial | Commercial, industrial and other | Extension of Term and Reduction of Interest Rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 292 | 127 |  |
Commercial real estate | Construction and development |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 |  | 701 | 2,495
Commercial real estate | Construction and development | Payments in Default |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 |  |  |
Post-modification loan balances, payments in default | 0 | 0 |  |
Commercial real estate | Construction and development | Extension of Term |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 |  |  |
Commercial real estate | Construction and development | Reduction of Interest Rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 |  |  |
Commercial real estate | Construction and development | Interest Only Payments |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 |  |  |
Commercial real estate | Construction and development | Extension of Term and Reduction of Interest Rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 |  |  |
Commercial real estate | Non-construction |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 1,176 | 379 | 6,161
Commercial real estate | Non-construction | Payments in Default |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 883 |  |
Post-modification loan balances, payments in default | 0 | 603 |  |
Commercial real estate | Non-construction | Extension of Term |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 293 |  |
Commercial real estate | Non-construction | Reduction of Interest Rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 0 |  |
Commercial real estate | Non-construction | Interest Only Payments |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 |  |  |
Commercial real estate | Non-construction | Extension of Term and Reduction of Interest Rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 0 |  |
Home equity |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 98 | 0 | 616
Home equity | Payments in Default |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 0 |  |
Post-modification loan balances, payments in default | 0 | 19 |  |
Home equity | Extension of Term |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 98 |  |
Home equity | Reduction of Interest Rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 0 |  |
Home equity | Interest Only Payments |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 |  |  |
Home equity | Extension of Term and Reduction of Interest Rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 0 |  |
Residential real estate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 873 | 218 | 874 | 612
Residential real estate | Payments in Default |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 0 |  |
Post-modification loan balances, payments in default | 710 | 144 |  |
Residential real estate | Extension of Term |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 163 | 35 |  |
Residential real estate | Reduction of Interest Rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 183 |  |
Residential real estate | Interest Only Payments |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 |  |  |
Residential real estate | Extension of Term and Reduction of Interest Rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 710 | 0 |  |
Premium finance receivables | Property and casualty insurance loans |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 1 | $ 676 | $ 81
Premium finance receivables | Property and casualty insurance loans | Payments in Default |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 0 |  |
Post-modification loan balances, payments in default | 0 | 0 |  |
Premium finance receivables | Property and casualty insurance loans | Extension of Term |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 1 |  |
Premium finance receivables | Property and casualty insurance loans | Reduction of Interest Rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 | 0 |  |
Premium finance receivables | Property and casualty insurance loans | Interest Only Payments |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | 0 |  |  |
Premium finance receivables | Property and casualty insurance loans | Extension of Term and Reduction of Interest Rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Post-modification loan balances | $ 0 | $ 0 |  |

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