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Leases - Additional Information (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2020
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Oct. 27, 2020
Branches
Leases [Abstract]          
Amortization of ROU assets   $ 2,006 $ 2,215 $ 1,701  
Interest on lease liabilities   1,044 $ 1,185 $ 1,194  
Undiscounted contract amount operating leases not yet commenced   $ 2,300      
Leases          
Operating lease contract not yet commenced   20 years      
PB | Branches closure          
Leases          
Asset impairment charges $ 15,900        
Number of branches closed | Branches         11
Minimum          
Leases          
Remaining lease term of contract   1 month 6 days      
Maximum          
Leases          
Remaining lease term of contract   32 years      
Lessee remaining lease renewal term   20 years