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Derivatives and Other Financial Instruments - Schedule Of Fair Value And Location Of Hedges In The Consolidated Balance Sheets (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Prepaid And Other [Member]
Mar. 31, 2014
Prepaid And Other [Member]
Foreign Exchange Contracts [Member]
Dec. 31, 2013
Accrued Expenses [Member]
Dec. 31, 2013
Accrued Expenses [Member]
Foreign Exchange Contracts [Member]
Dec. 31, 2013
Significant Other Observable Inputs (Level 2) [Member]
Foreign Exchange Forward Contracts [Member]
Derivative [Line Items]          
Foreign exchange forward contracts in asset positions   $ 0   $ 44  
Foreign exchange forward contracts in liability positions   (213)     (225)
Net derivatives at fair value $ (213)   $ (181)