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Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) | 4 Months Ended |
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Apr. 21, 2018 | Dec. 30, 2017
Goodwill And Intangible Assets Disclosure [Abstract] |  |
Change in carrying amount of goodwill | $ 0 |
Additional indefinite lived intangible assets separately identified from goodwill | $ 206,600,000 | $ 206,600,000

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- Definition Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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