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Statement of Comprehensive Income - Parenthetical - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Details        
Tax effect of unrealized appreciation (depreciation) on available-for-sale securities, taxes (credit) $ (232) $ (101) $ (894) $ 106
Tax Effect Reclassification Adjustment for Gains Included in Net Income Taxes Credit 0 0 0 0
Tax effect of change in fair value of cash flow hedge, taxes (credit) $ 0 $ 38 $ 0 $ 93