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Income Taxes - Summary of Tax Years Remain Subject to Examinations under Major Tax Jurisdictions (Detail)	12 Months Ended
	Apr. 28, 2017
Earliest Tax Year | United States - State and Local Income Tax
Income Tax Examination [Line Items]
Tax year subject to examination	2008
Latest Tax Year | United States - State and Local Income Tax
Income Tax Examination [Line Items]
Tax year subject to examination	2017
Federal Income Tax | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2012
Federal Income Tax | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2017
Australia | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2013
Australia | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2017
Germany | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2014
Germany | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2017
India | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2007
India | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2017
Japan | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2011
Japan | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2017
The Netherlands | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2013
The Netherlands | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2017
United Kingdom | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2014
United Kingdom | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2017
Canada | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2009
Canada | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2017

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+ References

No definition available.

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- Definition

Tax year that remains open to examination under enacted tax laws, in CCYY format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319

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