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Derivative Instruments - Information Regarding Fair Value of Forward Contracts Outstanding (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 28, 2014
Dec. 31, 2013
Derivatives, Fair Value [Line Items]    
Derivative Asset $ 142 $ 210
Derivative Liability 114 122
Designated as Hedging Instrument | Prepaid Expenses and Other Current Assets
   
Derivatives, Fair Value [Line Items]    
Derivative Asset 133 204
Designated as Hedging Instrument | Accrued Expenses
   
Derivatives, Fair Value [Line Items]    
Derivative Liability 105 98
Not Designated as Hedging Instrument | Prepaid Expenses and Other Current Assets
   
Derivatives, Fair Value [Line Items]    
Derivative Asset 9 6
Not Designated as Hedging Instrument | Accrued Expenses
   
Derivatives, Fair Value [Line Items]    
Derivative Liability $ 9 $ 24