Financial Instruments (Derivative Instruments Measured At Fair Value) (Details) (USD $) In Thousands	Jun. 30, 2011		Dec. 31, 2010
Interest Rate Swaps [Member] | Prepaid Expenses And Other Current Assets [Member]
Fair Value of Derivatives Designated as Hedging Instruments	$ 425	[1]	$ 112	[1]
Fair Value of Derivatives Not Designated as Hedging Instruments		[1]		[1]
Total Fair Value	425	[1]	112	[1]
Interest Rate Swaps [Member] | Other Current Liabilities [Member]
Fair Value of Derivatives Designated as Hedging Instruments			348	[2]
Fair Value of Derivatives Not Designated as Hedging Instruments				[2]
Total Fair Value			348	[2]
Forward Currency Contracts [Member] | Prepaid Expenses And Other Current Assets [Member]
Fair Value of Derivatives Designated as Hedging Instruments	139	[1]	2,984	[1]
Fair Value of Derivatives Not Designated as Hedging Instruments	2,073	[1]	1,491	[1]
Total Fair Value	2,212	[1]	4,475	[1]
Forward Currency Contracts [Member] | Other Current Liabilities [Member]
Fair Value of Derivatives Designated as Hedging Instruments	9,646	[2]	7,086	[2]
Fair Value of Derivatives Not Designated as Hedging Instruments	3,825	[2]	9,276	[2]
Total Fair Value	13,471	[2]	16,362	[2]
Prepaid Expenses And Other Current Assets [Member]
Fair Value of Derivatives Designated as Hedging Instruments	564	[1]	3,096	[1]
Fair Value of Derivatives Not Designated as Hedging Instruments	2,073	[1]	1,491	[1]
Total Fair Value	2,637	[1]	4,587	[1]
Other Current Liabilities [Member]
Fair Value of Derivatives Designated as Hedging Instruments			7,434	[2]
Fair Value of Derivatives Not Designated as Hedging Instruments			9,276	[2]
Total Fair Value			$ 16,710	[2]

[1] Derivative assets are recorded to Prepaid expenses and other current assets in the Consolidated Balance Sheet.

[2] All derivative liabilities are recorded as Other current liabilities in the Consolidated Balance Sheet.