Derivative Financial Instruments (Schedule Of Effect Of Derivative Instruments On Financial Performance) (Details) (Foreign Currency Exchange Contracts [Member], Forward Contracts [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Operating Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Recognized in Other Comprehensive Income (Effective Portion)	$ (58)	$ (3,599)	$ (2,983)	$ (38)
Amount of Loss Reclassified from Accumulated Other Comprehensive Loss (Effective Portion)	(1,788)	(779)	(2,312)	(2,306)
Derivatives Not Designated As Hedging Instruments [Member] | Other (Expense) Income, Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	$ 2,006	$ (1,163)	$ 1,727	$ (1,339)