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Derivative Financial Instruments - Additional Information (Details)
12 Months Ended
Dec. 31, 2021
USD ($)
Contract
Dec. 31, 2020
USD ($)
Contract
Dec. 31, 2019
USD ($)
Apr. 04, 2013
USD ($)
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]        
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]        
Period for which cash flow hedges will be used to hedge quarterly interest payments 5 years      
Derivative inception date Dec. 31, 2014      
Derivative maturity date Dec. 31, 2019      
Description of variable rate basis for derivative three-month LIBOR      
Ineffectiveness related to interest rate swap designated as a cash flow hedge $ 0 $ 0 $ 0  
Accumulated net, after tax gain included in accumulated other comprehensive income (loss) $ 0 $ 0 0  
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Junior Subordinated Debentures [Member]        
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]        
Total notional amount       $ 60,000,000.0
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Three-month LIBOR [Member]        
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]        
Swap fixed interest rate to be paid 1.66%      
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 6 3    
Aggregate notional amount of credit risk participation agreements $ 52,000,000.0 $ 41,100,000    
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 24 24    
Aggregate notional amount of credit risk participation agreements $ 173,500,000 $ 172,000,000.0    
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 409,500,000 326,500,000    
Net (negative) positive ineffectiveness on MSR fair value 2,500,000 7,800,000 $ (11,500,000)  
Derivatives not Designated as Hedging Instruments [Member] | Interest Rate Swap [Member]        
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]        
Total notional amount 1,225,000,000 1,125,000,000    
Termination value of derivatives 655,000 1,300,000    
Collateral Posted 850,000      
Derivatives not Designated as Hedging Instruments [Member] | Forward Contracts [Member]        
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]        
Off-balance sheet obligations 236,000,000.0 377,500,000    
Valuation adjustment (81,000) (3,100,000)    
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 142,600,000 329,300,000    
Valuation adjustment $ 1,900,000 $ 9,600,000