Restructuring Related Balance Sheet Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2021	$ 72,626
Costs charged to expense	(1,980)	$ (248)
Cash (payments) receipts	(5,899)
Net assets disposed and impaired	(1,823)
Effect of change in exchange rates	(2,283)
Ending balance, March 31, 2021	60,641
Accrued Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2021	70,005
Costs charged to expense	(5,015)
Cash (payments) receipts	(6,269)
Net assets disposed and impaired	0
Effect of change in exchange rates	(2,250)
Ending balance, March 31, 2021	56,471
Asset Impairment and Net (Gain) Loss on Sale or Disposal [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2021	0
Costs charged to expense	(45)
Cash (payments) receipts	1,868
Net assets disposed and impaired	(1,823)
Effect of change in exchange rates	0
Ending balance, March 31, 2021	0
Other Accrued Costs [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2021	2,621
Costs charged to expense	3,080
Cash (payments) receipts	(1,498)
Net assets disposed and impaired	0
Effect of change in exchange rates	(33)
Ending balance, March 31, 2021	$ 4,170