Revenue - Schedule of Contract Balances (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018
Revenue from Contract with Customer [Abstract]
Short-term contract assets (included in Prepaid expenses and other current assets)	$ 2,926	$ 6,166
Short-term contract liabilities (included in Other accrued liabilities)	(4,897)	(1,299)
Long-term contract liabilities (included in Other noncurrent liabilities)	(14,611)	(2,767)
Net contract assets (liabilities)	$ (16,582)	$ 2,100