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Derivative Financial Instruments - Summary of Outstanding Commodity Derivative Agreements (Detail) - Commodity Hedging Agreements [Member] - USD ($) | 6 Months Ended | 12 Months Ended
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Jun. 30, 2019 | Dec. 30, 2018
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |
Notional amount of outstanding commodity derivative agreements | $ 167,630,000 | $ 168,388,000
Latest maturity date of outstanding commodity derivative agreements | 2020-12 | 2019-12

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- Definition Outstanding commodity derivative agreements maturity date. + References No definition available. + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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