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Loans and Leases and Allowance for Credit Losses - Narrative (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2024
USD ($)
segment
Mar. 31, 2023
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Financing Receivable, Modifications [Line Items]        
Loan portfolio segments | segment 6      
Provision for loan losses $ (440) $ 550    
Provision for credit losses, post ASU 2019-04 (78) 550    
Allowance for credit losses, post ASU 2019-04 $ 34,203 32,279 $ 35,066 $ 23,334
Percentage of allowance for credit losses to aggregate loans 0.98%   1.02%  
Nonaccrual restructuring loans, post ASU 2019-04 $ 6,171   $ 7,931  
Other real estate owned 696   517  
Residential Real Estate [Member]        
Financing Receivable, Modifications [Line Items]        
Mortgage loans in process of foreclosure 694      
Consumer Real Estate [Member]        
Financing Receivable, Modifications [Line Items]        
Provision for credit losses, post ASU 2019-04   260    
Allowance for credit losses, post ASU 2019-04 7,246 6,411 7,249 4,028
Nonaccrual restructuring loans, post ASU 2019-04 2,466   2,647  
Consumer Real Estate [Member] | Residential Real Estate [Member]        
Financing Receivable, Modifications [Line Items]        
Mortgage loans in process of foreclosure 279      
Consumer and Other [Member]        
Financing Receivable, Modifications [Line Items]        
Provision for credit losses, post ASU 2019-04   81    
Allowance for credit losses, post ASU 2019-04 $ 112 $ 125 $ 115 $ 136