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Investment Securities - Narrative (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2024
USD ($)
security
Sep. 30, 2023
USD ($)
Sep. 30, 2024
USD ($)
security
Sep. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
Investments, Debt and Equity Securities [Abstract]          
Debt securities with carrying values, pledged $ 84,900   $ 84,900   $ 89,200
Proceeds from sales of available-for-sale securities 0 $ 0 0 $ 0  
Accrued interest on investments $ 1,400   $ 1,400   1,400
Number of securities consisted in portfolio | security 394   394    
Number of securities in loss position | security 356   356    
Aggregate fair value of securities in loss position $ 158,186   $ 158,186   172,671
Loss position for 12 months or longer 152,024   152,024   155,243
Aggregate unrealized loss $ 25,344   $ 25,344   $ 27,287