Derivative Instruments and Hedging (Schedule of Derivatives Subject to Master Netting Arrangements) (Details) (Derivatives Designated As Hedging Instruments [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Derivatives, Fair Value [Line Items]
Total derivative instruments, fair value of assets	$ 2,594	$ 2,128
Total derivative instruments, fair value of liabilities	4,092	4,875
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	1,861	1,918
Derivative Asset	733	210
Derivative Liability	2,231	2,957
Foreign Currency Exchange Contracts [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total derivative instruments, fair value of assets	2,266	2,128
Foreign Currency Exchange Contracts [Member] | Other Long-Term Assets Net [Member]
Derivatives, Fair Value [Line Items]
Total derivative instruments, fair value of assets	328
Foreign Currency Exchange Contracts [Member] | Accrued Liabilties [Member]
Derivatives, Fair Value [Line Items]
Total derivative instruments, fair value of liabilities	1,782	2,193
Foreign Currency Exchange Contracts [Member] | Other Long-Term Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total derivative instruments, fair value of liabilities	367
Interest Rate Swaps [Member] | Accrued Liabilties [Member]
Derivatives, Fair Value [Line Items]
Total derivative instruments, fair value of liabilities	$ 1,943	$ 2,682