Restructuring Costs (Details 3) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning	$ 4,484
Restructuring expenses	622	$ 20,784
Utilization	(1,963)
Restructuring Reserve, Ending	3,143
Employee Separation costs
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning	4,217
Restructuring expenses	276
Utilization	(1,387)
Restructuring Reserve, Ending	3,106
Third party and other costs
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning	267
Restructuring expenses	346
Utilization	(576)
Restructuring Reserve, Ending	$ 37