Income Taxes - Schedule of Income (Loss) before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Tax Contingency [Line Items]
(Loss) income before taxes	$ (42,047)	$ 71,941
United States
Income Tax Contingency [Line Items]
(Loss) income before taxes	(47,873)	62,753
Foreign
Income Tax Contingency [Line Items]
(Loss) income before taxes	$ 5,826	$ 9,188