Income Taxes - Summary of Tax Years Remain Subject to Examinations under Major Tax Jurisdictions (Detail)	12 Months Ended
	Apr. 26, 2019
Earliest Tax Year | United States - State and Local Income Tax
Income Tax Examination [Line Items]
Tax year subject to examination	2011
Latest Tax Year | United States - State and Local Income Tax
Income Tax Examination [Line Items]
Tax year subject to examination	2019
Federal Income Tax | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2014
Federal Income Tax | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2019
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	2019
Germany | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2013
Germany | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2019
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	2019
Japan | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2013
Japan | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2019
The Netherlands | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2014
The Netherlands | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2019
United Kingdom | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2016
United Kingdom | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2019
Canada | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2016
Canada | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2019