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Loss Reclassified From AOCI for Commodity Contracts (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 14, 2018 | Jul. 15, 2017 | Jul. 14, 2018 | Jul. 15, 2017
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Net of tax |  | $ 126 | $ 320 | $ 423 | $ 794
Gains/Losses on Cash Flow Hedges |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Gross loss reclassified from AOCI into income | [1] | 168 | 520 | 565 | 1,291
Tax benefit | [1] | (42) | (200) | (142) | (497)
Net of tax | [1] | 126 | 320 | 423 | 794
Commodity Contract | Gains/Losses on Cash Flow Hedges |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Gross loss reclassified from AOCI into income | [1],[2] | $ 135 | $ 487 | 488 | 1,214
Tax benefit |  |  |  | (123) | (467)
Net of tax |  |  |  | $ 365 | $ 747
[1] | Amounts in parentheses indicate debits to determine net income (loss).
[2] | Amounts are presented as an adjustment to reconcile net income (loss) to net cash provided by operating activities on the Condensed Consolidated Statements of Cash Flows.

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