Restructuring - Activity (Details) - USD ($) $ in Thousands	2 Months Ended	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Additions charged to expense		$ 1,524	$ 13,688	$ 49,000
Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Balance at December 31, 2020	$ 0	2,347
Additions charged to expense	13,688	1,524
Cash payments	(927)	(1,417)
Balance at March 31, 2021	12,761	2,454	12,761
Severance and other benefits | Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Balance at December 31, 2020	0	1,481
Additions charged to expense	12,956	1,043
Cash payments	(853)	(841)
Balance at March 31, 2021	12,103	1,683	12,103
Professional fees and other related charges | Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Balance at December 31, 2020	0	866
Additions charged to expense	732	481
Cash payments	(74)	(576)
Balance at March 31, 2021	$ 658	$ 771	$ 658