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Income Taxes - Schedule of Domestic and Foreign Components of Loss before Tax Provision (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]      
United States $ (24,285) $ (40,845) $ 62,479
Foreign (45,349) (16,760) (908)
Total $ (69,634) $ (57,605) $ 61,571