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Derivative Financial Instruments - Additional Information (Details)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2022
USD ($)
Contract
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
Contract
Sep. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
Contract
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 5   5   6
Aggregate notional amount of credit risk participation agreements $ 50,600   $ 50,600   $ 52,000
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 28   28   24
Aggregate notional amount of credit risk participation agreements $ 225,600   $ 225,600   $ 173,500
Derivatives not Designated as Hedging Instruments [Member] | Forward Contracts [Member]          
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]          
Off-balance sheet obligations 140,500   140,500   236,000
Valuation adjustment     5,500   (81)
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 85,500   85,500   142,600
Valuation adjustment     868   1,900
Derivatives not Designated as Hedging Instruments [Member] | Interest Rate Swap [Member]          
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]          
Total notional amount 1,491,000   1,491,000   1,225,000
Termination value of derivatives 0   0   655
Collateral Posted 40   40   850
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 260,000   260,000   $ 409,500
Net (negative) positive ineffectiveness on MSR fair value 928 $ 144 554 $ 1,700  
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]          
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]          
Total notional amount $ 675,000   675,000    
Interest and fees on LHFS and LHFI reclassified as a reduction over twelve months     $ 7,800