Derivative Instruments (Effect Of Derivative Instruments Not Designated As Hedges On Result Of Operations) (Details) (Foreign Currency Contracts [Member], Other Income (Expense), Net [Member], USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Foreign Currency Contracts [Member] | Other Income (Expense), Net [Member]
Amount of (loss) gain recognized on derivative instruments	$ (881)	$ 1,411	$ (2,493)	$ 2,506