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Intangible Assets and Goodwill - Narrative - Intangible Assets (Details) - USD ($) $ in Millions | Apr. 28, 2018 | Apr. 29, 2017
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Goodwill and Intangible Assets Disclosure [Abstract] |  |
Trade names not subject to amortization | $ 1.8 | $ 1.8

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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trade name to gain or protect exclusive use thereof for 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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