Derivative Instruments And Hedging Activities (Summary Of The Effect Of Derivative Instruments On The Condensed Consolidated Statements Of Operations) (Details) (Other Income (Expense), Net [Member], Nondesignated [Member], Foreign Exchange Contract [Member], USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Other Income (Expense), Net [Member] | Nondesignated [Member] | Foreign Exchange Contract [Member]
Amount of Gain or (Loss) Recognized in Results of Operations	$ 499	$ (2,650)	$ 1,959	$ (5,066)