Derivative Financial Instruments (Schedule Of Effect Of Derivative Instruments On Financial Performance) (Details) (Foreign Exchange Contract [Member], Forward Contracts [Member], USD $) In Thousands, unless otherwise specified	6 Months Ended						3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Operating Expense [Member]	Jun. 30, 2013 Operating Expense [Member]	Jun. 30, 2014 Not Designated as Hedging Instrument [Member] Other Income (Expense) [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] Other Income (Expense) [Member]	Jun. 30, 2014 Cash Flow Hedging [Member] Designated as Hedging Instrument [Member]	Jun. 30, 2013 Cash Flow Hedging [Member] Designated as Hedging Instrument [Member]	Jun. 30, 2014 Cash Flow Hedging [Member] Designated as Hedging Instrument [Member] Operating Expense [Member]	Jun. 30, 2013 Cash Flow Hedging [Member] Designated as Hedging Instrument [Member] Operating Expense [Member]	Jun. 30, 2014 Cash Flow Hedging [Member] Not Designated as Hedging Instrument [Member] Other Income (Expense) [Member]	Jun. 30, 2013 Cash Flow Hedging [Member] Not Designated as Hedging Instrument [Member] Other Income (Expense) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Recognized in Other Comprehensive (Loss) Income (Effective Portion)	$ (336)	$ (2,983)					$ (359)	$ (58)
Amount of Gain/(Loss) Reclassified from Accumulated Other Comprehensive Income (Effective Portion)			2,948	(2,312)					1,651	(1,788)
Amount of Gain (Loss) Recognized in Income on Derivative					$ (1,562)	$ 1,727					$ (577)	$ 2,006