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Goodwill and Other Intangible Assets - Summary of Goodwill by Reporting Unit (Details) - USD ($) $ in Millions | May 02, 2020 | Apr. 27, 2019 | Apr. 28, 2018 | Apr. 29, 2017
--- | --- | --- | --- | ---
Goodwill [Line Items] |  |  |  |
Goodwill | $ 231.6 | $ 233.3 | $ 59.2 | $ 1.6
Grakon Industrial |  |  |  |
Goodwill [Line Items] |  |  |  |
Goodwill | 123.8 | 125.4 |  |
North American Automotive |  |  |  |
Goodwill [Line Items] |  |  |  |
Goodwill | 99.8 | 99.8 |  |
European Automotive |  |  |  |
Goodwill [Line Items] |  |  |  |
Goodwill | 6.4 | 6.5 |  |
Other |  |  |  |
Goodwill [Line Items] |  |  |  |
Goodwill | $ 1.6 | $ 1.6 |  |

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- Definition Amount after accumulated impairment loss 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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