Restructuring Activities - Restructuring Reserve (Details 2) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 0
Additions	6,055
Payments	(4,134)
Restructuring Reserve	1,921
Contract Termination Fee
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0
Additions	3,101
Payments	(1,610)
Restructuring Reserve	1,491
Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0
Additions	2,168
Payments	(1,738)
Restructuring Reserve	430
Facility, asset impairment and other expense
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0
Additions	786
Payments	(786)
Restructuring Reserve	$ 0