Restructuring and Other Related Charges (Summary of Accrued Restructuring Costs) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($)
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 25,602
Charges	8,625
Cash payments	(22,499)
Non-cash adjustments	(4,457)
Other	105
Ending Balance	7,376
Severance and employee-related costs
Restructuring Reserve [Roll Forward]
Beginning Balance	25,571
Charges	4,168
Cash payments	(22,499)
Non-cash adjustments	0
Other	105
Ending Balance	7,345
Other exit costs
Restructuring Reserve [Roll Forward]
Beginning Balance	31
Charges	4,457
Cash payments	0
Non-cash adjustments	(4,457)
Other	0
Ending Balance	$ 31