Restructuring Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		24 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ (293)	$ (2,166)	$ (28,779)	$ (5,776)
Project Be Ready [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	(293)	0	(28,779)	0
Employee Separation costs
Restructuring Cost and Reserve [Line Items]
Restructuring expenses			(17,151)
Employee Separation costs | Project Be Ready [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	(200)	0	(17,153)	0
Lease consolidation expense | Project Be Ready [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	0	0	(204)	0
Third party and other costs
Restructuring Cost and Reserve [Line Items]
Restructuring expenses			(11,628)
Third party and other costs | Project Be Ready [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ (493)	$ 0	$ (11,422)	$ 0
Minimum | Subsequent Event
Restructuring Cost and Reserve [Line Items]
Restructuring expenses					$ (40,000)
Minimum | Subsequent Event | Employee Separation costs
Restructuring Cost and Reserve [Line Items]
Restructuring expenses					(20,000)
Minimum | Subsequent Event | Lease consolidation expense
Restructuring Cost and Reserve [Line Items]
Restructuring expenses					(5,000)
Minimum | Subsequent Event | Third party cost [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses					(15,000)
Maximum | Subsequent Event
Restructuring Cost and Reserve [Line Items]
Restructuring expenses					(55,000)
Maximum | Subsequent Event | Employee Separation costs
Restructuring Cost and Reserve [Line Items]
Restructuring expenses					(25,000)
Maximum | Subsequent Event | Lease consolidation expense
Restructuring Cost and Reserve [Line Items]
Restructuring expenses					(10,000)
Maximum | Subsequent Event | Third party cost [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses					$ (20,000)