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Accounting Pronouncements Recently Issued - Additional Information (Details) - USD ($)
Dec. 31, 2021
Jan. 01, 2021
Dec. 31, 2020
New Accounting Pronouncements Line Items      
Operating lease right-of-use asset $ 11,646,000   $ 0
Present value of future minimum lease payments 15,629,000    
Derivative notional amount 847,447,000   391,847,000
Securities available-for-sale, at fair value 1,454,542,000   1,447,230,000
Junior subordinated debenture carrying value 36,906,000   $ 36,451,000
London Interbank Offered Rate (LIBOR) [Member]      
New Accounting Pronouncements Line Items      
Loans 1,200,000,000    
Derivative notional amount 440,000,000.0    
Securities available-for-sale, at fair value 58,800,000    
Junior subordinated debenture carrying value $ 36,900,000    
Accounting Standards Update 201602      
New Accounting Pronouncements Line Items      
Operating lease right-of-use asset   $ 10,500,000  
Present value of future minimum lease payments   $ 11,700,000