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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Income Taxes [Abstract]      
Income tax expense (benefit) $ 2,905 $ 295  
Income before income taxes $ 13,051 $ (2,130)  
Effective income tax rate 22.10% (13.90%)  
Unrecognized tax benefits $ 5,100   $ 5,000