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Securities (Summary of Disaggregated Net Income on Equity Securities) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Securities [Abstract]        
Net losses recognized during the period on equity securities held at the reporting date $ (436) $ (559) $ (4,157) $ (5,487)
Net losses recognized during the period on equity securities sold during the period (58)   (233) (59)
Realized and unrealized losses on equity investments during the reporting period $ (494) $ (559) $ (4,390) $ (5,546)