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Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Statement of Comprehensive Income [Abstract]        
Unrealized gains (losses) during the period, income tax expense (benefit) $ (27) $ 91 $ (497) $ 463
Less: reclassification adjustment for losses realized in net income, income tax benefit $ (23) $ (29) $ (73) $ (75)