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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