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Basis of Accounting and Consolidation - Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]        
Realized gains on available-for-sale securities $ 95 $ 51 $ 913 $ 323
Tax effect (28) (15) (265) (94)
Total reclassifications out of accumulated other comprehensive income $ 67 $ 36 $ 648 $ 229