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Effect of Derivative Instruments for Deferred Gains And (Losses) on Closed Contracts and Effective Portion in Fair Value on AOCI, Utilized for Risk Management Purposes (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 07, 2017 | Oct. 08, 2016 | Oct. 07, 2017 | Oct. 08, 2016
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Net change in fair value of derivatives | [1] | $ (9,652) | $ 3,433 | $ (5,932) | $ 2,496
Production costs |  | 476,170 | 476,760 | 1,552,263 | 1,575,905
Income before income taxes |  | (56,496) | 61,448 | 105,469 | 232,251
Reclassification out of Accumulated Other Comprehensive Income |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Income before income taxes | [2] | 372 | 742 | 1,166 | 2,688
Interest Rate Contracts |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Net change in fair value of derivatives | [1] |  | 666 |  | 666
Interest Rate Contracts | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Interest expense | [2] | 21 | 38 | 68 | 121
Commodity Contract |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Net change in fair value of derivatives | [1] | (9,652) | 2,767 | (5,932) | 1,830
Commodity Contract | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Production costs | [2],[3] | $ 351 | $ 704 | $ 1,098 | $ 2,567
[1] | Amounts in parentheses indicate debits to determine net income (loss).
[2] | Amounts in parentheses, if any, indicate credits to determine net income (loss).
[3] | Included in materials, supplies, labor and other production costs (exclusive of depreciation and amortization shown separately).

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