Derivative Instruments (Effect Of Derivative Instruments Not Designated As Hedges On Result Of Operations) (Details) (Foreign Currency Contracts [Member], Other (Expense) Income, Net [Member], USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Foreign Currency Contracts [Member] | Other (Expense) Income, Net [Member]
Amount of gain (loss) recognized on derivative instruments	$ 2,225	$ (3,308)	$ (268)	$ (803)