Derivative Financial Instruments (Schedule Of The Fair Values Of Derivative Instruments) (Details) (Cash Flow Hedging [Member], Foreign Exchange Contract [Member], Forward Contracts [Member], USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Designated as Hedging Instrument [Member] | Prepaid Expenses and Other Current Assets [Member]
Asset Derivatives
Asset derivatives	$ 465	$ 435
Designated as Hedging Instrument [Member] | Accrued Expenses and Other Current Liabilities [Member]
Liability Derivatives
Liability derivatives	10,986	9,364
Not Designated as Hedging Instrument [Member] | Prepaid Expenses and Other Current Assets [Member]
Asset Derivatives
Asset derivatives	733	771
Not Designated as Hedging Instrument [Member] | Accrued Expenses and Other Current Liabilities [Member]
Liability Derivatives
Liability derivatives	$ 518	$ 328