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	Dec. 31, 2011	Dec. 31, 2010
Derivatives Designated As Hedging Instruments [Member] | Prepaid Expenses And Other Current Assets [Member]
Asset derivatives	$ 2,762	$ 13,192
Derivatives Designated As Hedging Instruments [Member] | Accrued Expenses And Other Current Liabilities [Member]
Liability derivatives	8,252	6,745
Derivatives Not Designated As Hedging Instruments [Member] | Prepaid Expenses And Other Current Assets [Member]
Asset derivatives	69	0
Derivatives Not Designated As Hedging Instruments [Member] | Accrued Expenses And Other Current Liabilities [Member]
Liability derivatives	$ 202	$ 0