Organization - Additional Information (Detail) Person in Millions	9 Months Ended
	Jan. 27, 2018 Person Store
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of Stores	1,480
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	782
MBS [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of Stores	698
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