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Leases - Additional Information (Details)
 3 Months Ended 6 Months Ended
Jun. 30, 2023
USD ($)
Jun. 30, 2022
USD ($)
Jun. 30, 2023
USD ($)
lease
security
Jun. 30, 2022
USD ($)
Lessee, Lease, Description [Line Items]        
Extension options, term of extension     5 years  
Rent expense $ 4,300,000 $ 4,700,000 $ 9,200,000 $ 9,300,000
Operating Lease, Impairment Loss 0   $ (93,000) $ 0
Number of Branches Consolidated | security     1  
Number of operating lease commitments not yet commenced | lease     1  
Operating leases, not yet commenced 668,000   $ 668,000  
Short-term operating lease liability 14,400,000   14,400,000  
Long-term operating lease liability $ 43,600,000   $ 43,600,000  
Minimum        
Lessee, Lease, Description [Line Items]        
Remaining lease term for operating leases 0 years   0 years  
Extension options, term of extension     2 years  
Maximum        
Lessee, Lease, Description [Line Items]        
Remaining lease term for operating leases 10 years   10 years  
Extension options, term of extension     5 years  
Operating leases, not yet commenced, term 5 years   5 years