Derivative Financial Instruments (Schedule Of Effect Of Derivative Instruments On Financial Performance) (Details) - Foreign Exchange Contract [Member] - Forward Contracts [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Not Designated as Hedging Instrument [Member] | Other Expense, Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain Recognized in Income on Derivative	$ 1,238	$ 2,626	$ 1,727	$ 1,064
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Recognized in Other Comprehensive (Loss) Income (Effective Portion)	(554)	(8,309)	5,770	(8,645)
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Operating Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss)/Gain Reclassified from Accumulated Other Comprehensive Loss (Effective Portion)	$ (1,794)	$ 1,500	$ (11,462)	$ 4,448