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Restructuring Charges - Severance and Other Restructuring Charges Activity (Details) - Optimizing for Growth (formerly Capital Light Initiative) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Restructuring Reserve [Roll Forward]
Liability at December 31, 2020			$ 5,324
Charges	$ 9,406	$ 2,607	28,341	$ 11,191
Payments/Utilization			(17,895)
Liability at September 30, 2021	15,770		15,770
Severance
Restructuring Reserve [Roll Forward]
Liability at December 31, 2020			5,294
Charges			15,277
Payments/Utilization			(7,716)
Liability at September 30, 2021	12,855		12,855
Other restructuring charges
Restructuring Reserve [Roll Forward]
Liability at December 31, 2020			30
Charges			13,064
Payments/Utilization			(10,179)
Liability at September 30, 2021	$ 2,915		$ 2,915