Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
U.S.	$ (11,898)	$ (6,143)	$ 6,701
Non-U.S.	10,192	4,405	10,568
Total current	(1,706)	(1,738)	17,269
Deferred:
U.S.	0	0	0
Non-U.S.	0	144	348
Total deferred	0	144	348
Total income tax provision	$ (1,706)	$ (1,594)	$ 17,617