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Securities - Pledged as Collateral (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Available for sale securities    
Amortized Cost $ 510,597 $ 557,128
Fair Value 460,653 512,591
Securities Pledged as Collateral    
Available for sale securities    
Amortized Cost 215,220 237,150
Fair Value $ 190,510 $ 213,580