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Fair Value - Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Equity securities | $ 91,650 | $ 91,996
Derivative assets | 138,298 | 146,478
Derivative liabilities | 202,021 | 244,313
Carrying Value | Fair Value on Recurring Basis |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Equity securities | 91,650 | 91,996
Loans held-for-sale | 40,424 | 34,483
Derivative assets | 138,298 | 146,478
Derivative liabilities | 202,021 | 244,313
Carrying Value | Fair Value on Recurring Basis | U.S. Treasury |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 204,537 | 199,013
Carrying Value | Fair Value on Recurring Basis | U.S. government-sponsored entities and agencies |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 1,324,803 | 1,257,906
Carrying Value | Fair Value on Recurring Basis | Mortgage-backed securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 5,500,019 | 5,204,891
Carrying Value | Fair Value on Recurring Basis | States and political subdivisions |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 439,456 | 485,544
Carrying Value | Fair Value on Recurring Basis | Pooled trust preferred securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 11,311 | 11,322
Carrying Value | Fair Value on Recurring Basis | Other securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 273,845 | 299,783
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Equity securities | 91,650 | 91,996
Loans held-for-sale | 0 | 0
Derivative assets | 0 | 0
Derivative liabilities | 0 | 0
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Treasury |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 204,537 | 199,013
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. government-sponsored entities and agencies |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 0 | 0
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 0 | 0
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | States and political subdivisions |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 0 | 0
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Pooled trust preferred securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 0 | 0
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 0 | 0
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Significant Other Observable Inputs (Level 2) |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Equity securities | 0 | 0
Loans held-for-sale | 40,424 | 34,483
Derivative assets | 138,298 | 146,478
Derivative liabilities | 202,021 | 244,313
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Significant Other Observable Inputs (Level 2) | U.S. Treasury |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 0 | 0
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Significant Other Observable Inputs (Level 2) | U.S. government-sponsored entities and agencies |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 1,324,803 | 1,257,906
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 5,500,019 | 5,204,891
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Significant Other Observable Inputs (Level 2) | States and political subdivisions |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 439,456 | 485,544
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Significant Other Observable Inputs (Level 2) | Pooled trust preferred securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 11,311 | 11,322
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Significant Other Observable Inputs (Level 2) | Other securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 273,845 | 299,783
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Significant Unobservable Inputs (Level 3) |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Equity securities | 0 | 0
Loans held-for-sale | 0 | 0
Derivative assets | 0 | 0
Derivative liabilities | 0 | 0
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Significant Unobservable Inputs (Level 3) | U.S. Treasury |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 0 | 0
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Significant Unobservable Inputs (Level 3) | U.S. government-sponsored entities and agencies |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 0 | 0
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Significant Unobservable Inputs (Level 3) | Mortgage-backed securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 0 | 0
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Significant Unobservable Inputs (Level 3) | States and political subdivisions |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 0 | 0
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Significant Unobservable Inputs (Level 3) | Pooled trust preferred securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | 0 | 0
Estimate of Fair Value Measurement | Fair Value on Recurring Basis | Significant Unobservable Inputs (Level 3) | Other securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities available-for-sale: | $ 0 | $ 0

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