Organization - Additional Information (Detail) Person in Millions	6 Months Ended
	Oct. 28, 2017 Person Store
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of Stores	1,483
Number of students covered to build relationships and derive sales | Person	6
BNC [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of Stores	777
MBS [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of Stores	706
Number of Wholesale Customers	3,700
Student Brands LLC [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of Unique Monthly Users | Person	20