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Income Taxes (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Income Taxes [Abstract]        
Income tax provision $ 4,835 $ 2,690 $ 11,244 $ 9,961
Effective tax rate 38.90% 39.50% 40.20% 39.70%