Restructuring Expected Costs - 2018 Projects (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring	$ (1,980)	$ (248)
2018 Projects [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	84,126
Restructuring and Related Cost, Cost Incurred to Date			$ 81,176
Restructuring	650
Restructuring and Related Cost, Expected Cost Remaining	2,300
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring	(5,015)
Employee Severance [Member] | 2018 Projects [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	61,476
Restructuring and Related Cost, Cost Incurred to Date			63,173
Restructuring	(1,697)
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	(45)
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	2,824
Restructuring and Related Cost, Cost Incurred to Date			2,786
Restructuring	38
Restructuring and Related Cost, Expected Cost Remaining	0
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring	3,080
Other Restructuring [Member] | 2018 Projects [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	19,826
Restructuring and Related Cost, Cost Incurred to Date			$ 15,217
Restructuring	2,309
Restructuring and Related Cost, Expected Cost Remaining	$ 2,300