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Borrowings - Narrative (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
USD ($)
bank
Dec. 31, 2023
USD ($)
bank
Debt Instrument [Line Items]    
Amount available to borrow in additional FHLB advances $ 170,017 $ 72,766
Number of unaffiliated banks | bank 3 3
Balance $ 291,513 $ 433,763
Revolving lines of credit    
Debt Instrument [Line Items]    
Balance 15,513 18,763
Line of credit facility, maximum borrowing capacity $ 40,000 40,000
Revolving lines of credit | Base Rate    
Debt Instrument [Line Items]    
Debt instrument, basis spread on variable rate 0.50%  
FRB | Revolving lines of credit    
Debt Instrument [Line Items]    
Unused line of credit $ 80,602 55,254
Unaffiliated Banks | Revolving lines of credit    
Debt Instrument [Line Items]    
Unused line of credit $ 149,487 $ 146,237