Restructuring Expected Costs - 2020 Projects (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring	$ (830)
2020 Projects [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	44,022
Restructuring and Related Cost, Cost Incurred to Date		$ 43,232
Restructuring	(1,773)
Restructuring and Related Cost, Expected Cost Remaining	2,563
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring	(7,586)
Employee Severance [Member] | 2020 Projects [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	32,583
Restructuring and Related Cost, Cost Incurred to Date		36,225
Restructuring	(3,642)
Restructuring and Related Cost, Expected Cost Remaining	0
Asset Impairment and Net (Gain) Loss on Sale or Disposal [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring	951
Asset Impairment and Net (Gain) Loss on Sale or Disposal [Member] | 2020 Projects [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	6,893
Restructuring and Related Cost, Cost Incurred to Date		6,944
Restructuring	(51)
Restructuring and Related Cost, Expected Cost Remaining	0
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring	5,805
Other Restructuring [Member] | 2020 Projects [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	4,546
Restructuring and Related Cost, Cost Incurred to Date		$ 63
Restructuring	1,920
Restructuring and Related Cost, Expected Cost Remaining	$ 2,563