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Description of Business and Summary of Significant Accounting Policies - Government Grants (Details) - USD ($) $ in Millions | May 02, 2020 | Apr. 27, 2019
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Accounting Policies [Abstract] |  |
Grants Receivable | $ 18.7 | $ 10.6

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- Definition Carrying amount as of the balance sheet date of amounts due under the terms of governmental, corporate, or foundation grants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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