Additions made to capitalized computer software costs during the period.

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Internal-use Software and Website Development Costs - Additional Information (Detail) - Internal Use Software Development - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2015	Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014
Finite-Lived Intangible Assets [Line Items]
Capitalized costs			$ 17,258	$ 22,801
Amortization of capitalized amounts	$ 8,156	$ 7,012	$ 15,242	$ 13,974
Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life			3 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life			7 years