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Fair Value - Additional Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Provision for credit losses [1] $ (28,812) $ 38,395 $ 4,747  
Other real estate owned property write-downs 23 200    
Valuation allowance for loan servicing rights with impairments 46 1,407 31 $ 15
Recoveries on loan servicing rights $ (1,361) 1,376 16  
Past due period of mortgage loans held for sale, days 90 days      
Interest income for residential loans held for sale $ 1,500 2,000 1,400  
States and political subdivisions        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Transfers out of Level 3     $ 4,000  
Impaired Commercial and Commercial Real Estate Loans        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Principal amount of impaired commercial and commercial real estate loans 21,000 57,200    
Valuation allowance 2,100 5,800    
Provision for credit losses $ (100) $ 2,100    
[1] Beginning January 1, 2020, with the adoption of CECL, calculation is based on current expected credit loss methodology. Prior to January 1, 2020, calculation was based on incurred loss methodology.