Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Details)

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Income Taxes - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Income Tax Disclosure [Abstract]          
Income tax (benefit) provision $ 1,746 $ 267 $ (1,156) $ 31  
Effective tax rate (percent) 46.70% 8.90% 34.50% 0.20%  
Unrecognized tax benefits $ 3,700   $ 3,700   $ 3,700
Unrecognized tax benefits, if recognized would affect effective income tax rate $ 3,700   $ 3,700   $ 2,500