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Derivative Financial Instruments - Summary of Fair Values and Classification in Consolidated Balance Sheets of Derivative Instruments (Detail) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2013 | Dec. 30, 2012 | Jul. 01, 2012
--- | --- | --- | ---
Derivatives, Fair Value [Line Items] |  |  |
Total | $ 0 | $ 1,062 | $ 0
Commodity Hedging Agreements Fair Market Value [Member] | Prepaid Expenses and Other Current Assets [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Total | 0 | 500 | 0
Commodity Hedging Agreements Unamortized Cost [Member] | Prepaid Expenses and Other Current Assets [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Total | $ 0 | $ 562 | $ 0

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- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
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- Details
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