Additions made to capitalized computer software costs during the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 350
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-Section 50
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Amount of expense for amortization of capitalized computer software costs.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128487-111756

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Internal-use Software and Website Development Costs - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Software and Software Development Costs
Finite-Lived Intangible Assets [Line Items]
Useful Life			3 years
Capitalized software costs			$ 8,610	$ 10,622
Capitalized Computer Software, Amortization	$ 5,471	$ 6,154	$ 10,845	$ 12,749
Website Development Costs
Finite-Lived Intangible Assets [Line Items]
Useful Life			7 years