Restructuring (Schedule of Restructuring Liability) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Restructuring Reserve [Roll Forward]
Beginning balance	$ 2,809	$ 19,301
Restructuring charges accrued	6,890	2,714
Payments	(2,707)	(19,100)
Currency translation/other	(13)	(106)
Ending balance	6,979	2,809
Termination Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning balance	2,809	19,301
Restructuring charges accrued	6,890	2,714
Payments	(2,707)	(19,100)
Currency translation/other	(13)	(106)
Ending balance	$ 6,979	$ 2,809