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Investment Securities - Realized Gains and Losses From Sale of Securities (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Realized Investment Gains (Losses) [Abstract]        
Gross gains $ 191 $ 11 $ 193 $ 88
Gross losses $ (112) $ 0 $ (112) $ 0