Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Taxes at U.S. statutory rate	$ (3,287)	$ 1,087	$ (3,903)	$ (6,267)
Foreign tax provision	(527)	(2,166)	(1,465)	(1,116)
CARES Act		580		(5,234)
Subsidiary restructuring				(8,333)
Other	1,846	228	3,516	(414)
Income tax benefit	$ (1,968)	$ (271)	$ (1,852)	$ (21,364)
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Taxes at U.S. statutory rate	21.00%	21.00%	21.00%	21.00%
Foreign tax provision	3.40%	(41.80%)	7.90%	3.70%
CARES Act		11.20%		17.60%
Subsidiary restructuring				27.90%
Other	(11.80%)	4.40%	(18.90%)	1.40%
Income tax benefit	12.60%	(5.20%)	10.00%	71.60%
Interim period allocations	$ 1,600		$ 2,800