NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Nature of Business (Details)	12 Months Ended
	Jan. 29, 2017 segment product location category customer employee
Nature of Business
Number of distinct market sectors in which entity specializes | category	3
Number of operating locations	500
Number of associates | employee	14,000
Number of customers | customer	530,000
Number of SKUs offered | product	845,000
Number of reportable segments | segment	3
U.S.
Nature of Business
Number of states or provinces	48
Canada
Nature of Business
Number of states or provinces	6