Income Taxes - Loss Before Income Taxes (Details) - USD ($) $ in Thousands	1 Months Ended	11 Months Ended	12 Months Ended
	Dec. 31, 2018	Nov. 19, 2018	Dec. 31, 2019	Dec. 31, 2017
Schedule of Income Before Income Tax [Line Items]
Loss before income taxes	$ (34,253)	$ (2,157,185)	$ (544,049)	$ (512,303)
Luxembourg
Schedule of Income Before Income Tax [Line Items]
Income (loss) before income taxes domestic	(9,738)	(500,317)	(83,322)	349
United States
Schedule of Income Before Income Tax [Line Items]
Income (loss) before income taxes foreign	3,558	(10,467)	(933)	1,301
Other Jurisdictions
Schedule of Income Before Income Tax [Line Items]
Income (loss) before income taxes foreign	$ (28,073)	$ (1,646,401)	$ (459,794)	$ (513,953)