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Investments (Gross Gains And Losses Realized) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Investments [Abstract]        
Gross realized gains $ 0 $ 71 $ 2,130 $ 972
Gross realized losses 0 0 0 0
Net investment security gains $ 0 $ 71 $ 2,130 $ 972