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Off-balance Sheet Arrangements, Commitments and Contingencies - Additional Information (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2022
USD ($)
SubleaseArrangement
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Offbalance Sheet Arrangements Commitments And Contingencies Details [Line Items]      
Allowance for credit losses on off-balance sheet credit exposures $ 29,947 $ 29,947  
Number of sublease arrangement | SubleaseArrangement 1    
Sublease income $ 3,200 3,100 $ 660
Operating lease right of use asset $ 41,800    
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Other assets    
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Other liabilities    
Operating lease, weighted average remaining lease term 5 years 6 months    
Operating lease, weighted average discount rate, percent 2.26%    
Operating lease, payments $ 10,900 12,200  
Right-of-Use asset obtained in exchange for operating lease liability 1,900    
Operating lease rent expense $ 10,900 $ 11,600 $ 13,700
Minimum [Member]      
Offbalance Sheet Arrangements Commitments And Contingencies Details [Line Items]      
Lessee operating lease remaining lease term 1 year    
Maximum [Member]      
Offbalance Sheet Arrangements Commitments And Contingencies Details [Line Items]      
Lessee operating lease remaining lease term 16 years    
Commitments to Extend Credit [Member]      
Offbalance Sheet Arrangements Commitments And Contingencies Details [Line Items]      
Amount of commitment to extend credit and standby letters of credit $ 707,800    
Commitments to Extend Credit [Member] | Minimum [Member]      
Offbalance Sheet Arrangements Commitments And Contingencies Details [Line Items]      
Percentage of commitments to extend credit and standby letters of credit fixed rate 0.00%    
Commitments to Extend Credit [Member] | Maximum [Member]      
Offbalance Sheet Arrangements Commitments And Contingencies Details [Line Items]      
Percentage of commitments to extend credit and standby letters of credit fixed rate 21.00%