Restructuring And Other Costs (Summary Of Restructuring Activities And Remaining Obligations) (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011		Sep. 30, 2010
Restructuring Cost and Reserve [Line Items]
Beginning restructuring obligations	$ 18,819		$ 441
2011 Restructuring and related expenses	5,191		28,288	[1]
Cash payments	(2,699)		(7,436)
Effect of exchange rate changes	(19)		(1)
Ending restructuring obligations	21,292		21,292
Restructuring charges	5,191	0	28,532		0
Computer And Research And Development Lab Equipment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 200

[1] Excludes a non-cash charge of $0.2 million associated with certain computer and research and development lab equipment.