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Derivative Financial Instruments - Summary of Pre-Tax Changes in Fair Value (Detail) - Commodity Contract [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2019 | Jul. 01, 2018 | Jun. 30, 2019 | Jul. 01, 2018
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Total gain (loss) | $ (4,940) | $ 297 | $ 1,680 | $ (2,670)
Cost of Sales [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Total gain (loss) | (4,874) | 249 | (969) | (2,516)
Selling, Delivery and Administrative Expenses [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Total gain (loss) | $ (66) | $ 48 | $ 2,649 | $ (154)

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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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- 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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