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Recent Accounting Pronouncements - Components of Pension Cost (Income) (Detail) - Accounting Standards Update201707 - Defined Benefit and Post-retirement Plans - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jul. 15, 2017 | Jul. 15, 2017
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |
Service cost to be reported in operating income | $ 233 | $ 545
Components to be reported outside of operating income | (1,442) | (3,366)
Total pension cost (income) | $ (1,209) | $ (2,821)

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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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