v3.25.2
Derivative Financial Instruments - Additional Information (Details)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
USD ($)
Contract
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
Contract
Jun. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Contract
Designated as Hedging Instrument [Member]          
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]          
Total excluded components of earnings recognition $ 131 $ 124 $ 261 $ 209  
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]          
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]          
Total notional amount 1,570,000   1,570,000   $ 1,500,000
Interest and fees on LHFS and LHFI reclassified as a reduction over twelve months     4,900    
Designated as Hedging Instrument [Member] | Interest Rate Floor [Member]          
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]          
Total notional amount $ 1,570,000   $ 1,570,000   $ 1,500,000
Derivatives not Designated as Hedging Instruments [Member] | Beneficiary [Member]          
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]          
Number of risk participation agreements | Contract 11   11   11
Aggregate notional amount of credit risk participation agreements $ 107,200   $ 107,200   $ 83,900
Derivatives not Designated as Hedging Instruments [Member] | Guarantor [Member]          
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]          
Number of risk participation agreements | Contract 29   29   28
Aggregate notional amount of credit risk participation agreements $ 259,800   $ 259,800   $ 229,100
Derivatives not Designated as Hedging Instruments [Member] | Mortgage Servicing Rights Hedge [Member]          
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]          
Total notional amount 333,000   333,000   311,500
Net (negative) positive ineffectiveness on MSR fair value     (1,100) $ (5,600)  
Derivatives not Designated as Hedging Instruments [Member] | Interest Rate Swap [Member]          
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]          
Total notional amount 1,991,000   1,991,000   1,819,000
Termination value of derivatives 0   0   568
Collateral Posted 2,200   2,200   1,500
Derivatives not Designated as Hedging Instruments [Member] | Forward Contracts [Member]          
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]          
Off-balance sheet obligations 133,500   133,500   110,000
Valuation adjustment     (1,100)   679
Derivatives not Designated as Hedging Instruments [Member] | Interest Rate Lock Commitments [Member]          
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]          
Off-balance sheet obligations $ 89,100   89,100   52,100
Valuation adjustment     $ 1,800   $ 229