Restructuring Costs (Details 3) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning	$ 4,123
Restructuring expenses	20,784	$ 609
Utilization	(5,985)
Restructuring Reserve, Ending	18,922
Employee Separation costs
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning	1,343
Restructuring expenses	10,465
Utilization	(1,685)
Restructuring Reserve, Ending	10,123
Lease consolidation expense
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning	339
Restructuring expenses	204
Utilization	(119)
Restructuring Reserve, Ending	424
Third party and other costs
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning	2,441
Restructuring expenses	10,115
Utilization	(4,181)
Restructuring Reserve, Ending	$ 8,375