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Loan and Lease Receivables - Additional Information (Details) - USD ($)
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Dec. 31, 2020
Accounts Notes And Loans Receivable [Line Items]        
Total loans and leases $ 4,782,717,000 $ 4,533,511,000    
Loans held for sale pledged as security for borrowings 2,200,000,000 1,900,000,000    
Allowance for loan and lease losses 59,458,000 55,012,000 $ 65,590,000 $ 66,347,000
Acquired Impaired Loans        
Accounts Notes And Loans Receivable [Line Items]        
Allowance for loan and lease losses 3,000,000.0 3,200    
Installment and Other        
Accounts Notes And Loans Receivable [Line Items]        
Total loans and leases 1,312,000 1,322,000    
Overdraft deposits reclassified as loans 371,000,000 445,000,000,000    
Allowance for loan and lease losses 10,000 9,000 $ 12,000 $ 15,000
U.S. Government Guaranteed Loans        
Accounts Notes And Loans Receivable [Line Items]        
Total loans and leases 156,800,000 231,200,000    
Discount on the unguaranteed portion of government guaranteed loans $ 27,900,000 $ 28,300,000