Restructuring and Other Related Charges (Summary of Accrued Restructuring and Other Related Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Reserve [Roll Forward]
Accrued restructuring costs, beginning balance	$ 35,189	$ 1,236
Charges	27,897	45,847	$ 6,128
Other	(2,092)	(882)
Cash payments	(32,311)	(3,554)
Non-cash adjustments	(1,081)	(7,440)
Currency translation	26	(18)
Accrued restructuring costs, ending balance	27,628	35,189	1,236
Severance and Other Personnel Related Costs [Member]
Restructuring Reserve [Roll Forward]
Accrued restructuring costs, beginning balance	33,774	1,212
Charges	26,132	35,965
Other	(612)	(137)
Cash payments	(31,897)	(3,257)
Non-cash adjustments	0	0
Currency translation	10	(9)
Accrued restructuring costs, ending balance	27,407	33,774	1,212
Other Exit Costs [Member]
Restructuring Reserve [Roll Forward]
Accrued restructuring costs, beginning balance	1,415	24
Charges	1,765	9,882
Other	(1,480)	(745)
Cash payments	(414)	(297)
Non-cash adjustments	(1,081)	(7,440)
Currency translation	16	(9)
Accrued restructuring costs, ending balance	$ 221	$ 1,415	$ 24