Balance Sheet Components - Pre-production Tooling Costs Related to Long-term Supply Arrangements (Details) - USD ($) $ in Millions	Feb. 01, 2020	Apr. 27, 2019
Pre-production Tooling Costs Related to Long-term Supply Arrangements [Abstract]
Pre-production costs	$ 39.9	$ 32.8
Preproduction Costs Related to Long-term Supply Arrangements, Asset for Molds Dies and Tools Owned	$ 15.9	$ 15.0

Pre-production Tooling Costs Related to Long-term Supply Arrangements [Abstract]

No definition available.

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- Definition

Carrying amount as of the balance sheet date of capitalized costs of molds, dies, and other tools that the entity does not own which are or will be used in producing goods under a long-term supply arrangement, and for which there is a noncancelable right of use during such arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=27011391&loc=d3e105117-122735

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 10
-Section 25
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6387057&loc=d3e6233-108318

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	debit
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- Definition

Carrying amount as of the balance sheet date of capitalized costs of molds, dies, and other tools that will be used in producing products under a long-term supply arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 10
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6387057&loc=d3e6169-108318

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=27011391&loc=d3e105117-122735

+ Details

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Balance Type:	debit
Period Type:	instant