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Fair Value - Additional Information (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Dec. 31, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Allowance for credit losses $ 288,003,000 $ 109,444,000 $ 288,003,000 $ 109,444,000 $ 280,507,000 $ 107,341,000 $ 114,037,000 $ 131,388,000
Provision for credit losses 9,245,000 (4,929,000) 106,814,000 (22,285,000)        
Other real estate owned property write-downs 100,000 0 300,000 23,000        
Valuation allowance for loan servicing rights with impairments 0   0          
Valuation allowance for loan servicing rights with impairments, impairments (recoveries) during period (1,000) (41,000) (46,000) (1,302,000)        
Valuation allowance for loan servicing rights with impairments 0 105,000 $ 0 105,000 $ 1,000 46,000 $ 146,000 $ 1,407,000
Past due period of mortgage loans held for sale     90 days          
Interest income for residential loans held for sale 700,000 400,000 $ 1,200,000 800,000        
Fair Value on Non-recurring Basis                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Other real estate 500,000   500,000          
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 84,500,000   84,500,000     21,000,000    
Allowance for credit losses 14,800,000   14,800,000     $ 2,100,000    
Provision for credit losses $ 12,800,000 $ 200,000 $ 28,600,000 $ (38,000)