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Derivative Instruments (Detail)
9 Months Ended
Oct. 01, 2017
Category
Derivative Instruments and Hedging Activities Disclosures [Line Items]  
Derivative, Number of Instruments Held 2
Designated as Hedging Instrument  
Derivative Instruments and Hedging Activities Disclosures [Line Items]  
Maximum length of time hedged in cash flow hedge 18 months
Not Designated as Hedging Instrument  
Derivative Instruments and Hedging Activities Disclosures [Line Items]  
Remaining maturity of foreign currency derivatives (up to) 45 days