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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, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]      
United States $ (325,769) $ (35,838) $ (32,112)
Foreign (93,734) (87,878) (93,910)
Total $ (419,503) $ (123,716) $ (126,022)