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Loans and Leases and the Allowance for Credit Losses - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Loan and lease portfolio      
Net gains related to sales of residential mortgage loans $ 200 $ 7,100 $ 15,400
Accrued interest receivable 61,002 45,242  
Revolving loans, converted to term loan during the period $ 6,200 4,100  
Number of days non-accrual loans are not past due 30 days    
Recorded Investment $ 47,300 70,000  
Available commitments to lend additional funds on loans modified as TDR 200 200  
Consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure $ 3,900    
Minimum      
Loan and lease portfolio      
Default period past due following modification of loans in TDR (in days) 60 days    
Classified      
Loan and lease portfolio      
Number of months up to which residential and home equity loans may be considered classified, even if they are current as to principal and interest 6 months    
Classified | Consumer      
Loan and lease portfolio      
Number of days past due for loans and leases in classified credit quality indicator 90 days    
Pass | Residential Mortgage      
Loan and lease portfolio      
Number of days past due for loans and leases in classified credit quality indicator 90 days    
Maximum current loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent) 60.00%    
Pass | Home Equity      
Loan and lease portfolio      
Number of days past due for loans and leases in classified credit quality indicator 90 days    
Pass | Home Equity | First Mortgage      
Loan and lease portfolio      
Maximum current loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent) 60.00%    
Pass | Home Equity | First Lien      
Loan and lease portfolio      
Maximum current loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent) 60.00%    
Accrued Interest Receivable      
Loan and lease portfolio      
Accrued interest receivable $ 40,100 $ 28,700