Restructuring (Schedule of Restructuring Liability) (Details) - Termination and other costs [Member] - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Restructuring Reserve [Roll Forward]
Beginning balance	$ 2,042	$ 5,570
Restructuring charges accrued	4,189	1,095
Payments	(3,186)	(4,195)
Currency translation /other	46	(360)
Ending balance	$ 3,091	$ 2,110