Restructuring Restructuring Expected Costs - 2018 Projects (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring	$ (2,683)	$ (6,169)	$ (2,931)	$ 1,093
2018 Projects [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	91,910		91,910
Restructuring and Related Cost, Cost Incurred to Date					$ 87,395
Restructuring			(2,931)
Restructuring and Related Cost, Expected Cost Remaining	7,446		7,446
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring			(4,300)
Employee Severance [Member] | 2018 Projects [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	67,833		67,833
Restructuring and Related Cost, Cost Incurred to Date					72,133
Restructuring			(4,300)
Restructuring and Related Cost, Expected Cost Remaining	0		0
Asset Impairment and Net (Gain) Loss on Sale or Disposal [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring			(1,146)
Asset Impairment and Net (Gain) Loss on Sale or Disposal [Member] | 2018 Projects [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	2,696		2,696
Restructuring and Related Cost, Cost Incurred to Date					3,842
Restructuring			(1,146)
Restructuring and Related Cost, Expected Cost Remaining	0		0
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring			2,515
Other Restructuring [Member] | 2018 Projects [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	21,381		21,381
Restructuring and Related Cost, Cost Incurred to Date					$ 11,420
Restructuring			2,515
Restructuring and Related Cost, Expected Cost Remaining	$ 7,446		$ 7,446