Hedging Activities And Fair Value Measurements (Schedule Of Gains And (Losses) On Forward Currency Contracts Outstanding And Total Net Foreign Currency Gains And (Losses)) (Details) (USD $) In Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
Hedging Activities And Fair Value Measurements [Abstract]
Foreign currency forward contracts	$ 2,747		$ (6,150)		$ 742		$ (790)
Total net foreign currency (losses) and gains	$ (25)	[1]	$ (1,760)	[1]	$ (2,614)	[1]	$ (1,132)	[1]

[1] See Note 13 "Supplemental Information"