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Derivative Financial Instruments - Summary of Pre-Tax Changes in Fair Value (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 28, 2014 | Dec. 29, 2013 | Dec. 30, 2012
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Total | $ 0us-gaap_GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments | $ (500)us-gaap_GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments | $ 500us-gaap_GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments
Cost of Sales [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Total | $ 0us-gaap_GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember | $ (500)us-gaap_GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember | $ 500us-gaap_GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember

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- Definition Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of price risk derivatives not designated as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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