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Summary of Reclassifications Out of AOCI (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 15, 2017 | Jul. 16, 2016 | Jul. 15, 2017 | Jul. 16, 2016
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Gains and losses on cash flow hedges net of tax |  | $ (320) | $ (803) | $ (794) | $ (1,946)
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax | [1] | (1,178) | (4,320) | (2,795) | (6,516)
Gains/Losses on Cash Flow Hedges |  |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Gains and losses on cash flow hedges before tax | [1] | (520) | (1,305) | (1,291) | (3,165)
Reclassification from Accumulated Other Comprehensive Income, Gains and losses on cash flow hedges tax benefit | [1] | 200 | 502 | 497 | 1,219
Reclassification from Accumulated Other Comprehensive Income, Gains and losses on cash flow hedges net of tax | [1] | (320) | (803) | (794) | (1,946)
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax |  |  |  | (794) | (1,946)
Amortization of defined benefit pension items, prior service (cost) credits |  |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax | [1],[2] | (40) | (27) | (94) | (81)
Amortization of defined benefit pension items, settlement losses |  |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax | [1],[2] |  | (4,641) |  | (4,641)
Amortization of defined benefit pension items, actuarial losses |  |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax | [1],[2] | (1,355) | (1,050) | (3,159) | (2,708)
Accumulated Defined Benefit Plans Adjustment |  |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax | [1] | (1,395) | (5,718) | (3,253) | (7,430)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax benefit | [1] | 537 | 2,201 | 1,252 | 2,860
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax | [1] | (858) | (3,517) | (2,001) | (4,570)
Interest Rate Contracts | Gains/Losses on Cash Flow Hedges |  |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Gains and losses on cash flow hedges before tax | [1] | (33) | (57) | (77) | (135)
Commodity Contract | Gains/Losses on Cash Flow Hedges |  |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Gains and losses on cash flow hedges before tax | [1],[3] | $ (487) | $ (1,248) | (1,214) | (3,030)
Reclassification from Accumulated Other Comprehensive Income, Gains and losses on cash flow hedges tax benefit |  |  |  | 467 | 1,167
Reclassification from Accumulated Other Comprehensive Income, Gains and losses on cash flow hedges net of tax |  |  |  | $ (747) | $ (1,863)
[1] | Amounts in parentheses indicate debits to determine net income.
[2] | These items are included in the computation of net periodic pension cost. See Note 14, Post-retirement Plans, for additional information.
[3] | Amounts are presented as an adjustment to reconcile net income to net cash provided by operating activities on the Condensed Consolidated Statements of Cash Flows.

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- Definition Amount before tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph c -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41638-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e689-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e637-108580 + Details
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- Definition Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e689-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph c -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41638-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e637-108580 + Details
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- Definition Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e640-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph c -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41638-113959 + Details
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