Derivative Financial Instruments (Schedule Of The Fair Values Of Derivative Instruments) (Details) (Foreign Currency Exchange Contracts [Member], Forward Contracts [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Derivatives Not Designated As Hedging Instruments [Member] | Prepaid Expenses And Other Current Assets [Member]
Asset Derivatives
Asset derivatives designated as hedging instruments	$ 1,358	$ 448
Derivatives Not Designated As Hedging Instruments [Member] | Accrued Expenses And Other Current Liabilities [Member]
Liability Derivatives
Liability derivatives designated as hedging instruments	623	52
Derivatives Designated As Hedging Instruments [Member] | Prepaid Expenses And Other Current Assets [Member]
Asset Derivatives
Asset derivatives designated as hedging instruments	3,223	4,157
Derivatives Designated As Hedging Instruments [Member] | Accrued Expenses And Other Current Liabilities [Member]
Liability Derivatives
Liability derivatives designated as hedging instruments	$ 6,463	$ 4,162