Income Taxes - Components And Provisions (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Components income/ (loss) before income taxes
United States									$ (135,299)	$ (158,186)	$ (511,165)
Foreign									4,565	(6,760)	9,691
Net loss before income taxes	$ (62,383)	$ (11,773)	$ (17,360)	$ (39,218)	$ (78,707)	$ (27,998)	$ (48,030)	$ (10,211)	(130,734)	(164,946)	(501,474)
Provision for federal, state, and foreign income taxes
Federal - Current											(1,308)
Federal - Deferred									5	480	(3,879)
State - Current									1,232	1,325	2,255
State - Deferred									351	1,542	(807)
Foreign - Current									3,775	4,318	5,770
Foreign - Deferred									6,293	5,919	5,611
Income tax expense	$ 8,226	$ 1,441	$ 2,007	$ (18)	$ 10,144	$ 320	$ 661	$ 2,459	$ 11,656	$ 13,584	$ 7,642