SEGMENTS AND GEOGRAPHIC INFORMATION (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 03, 2018 USD ($)	Oct. 28, 2017 USD ($)	Jul. 29, 2017 USD ($)	Apr. 29, 2017 USD ($)	Jan. 28, 2017 USD ($)	Oct. 29, 2016 USD ($)	Jul. 30, 2016 USD ($)	Apr. 30, 2016 USD ($)	Feb. 03, 2018 USD ($) item	Jan. 28, 2017 USD ($)	Jan. 30, 2016 USD ($)
Segments
Number of reportable segments | item									1
Net Sales	$ 1,890,608	$ 1,240,196	$ 1,072,593	$ 1,158,563	$ 1,750,854	$ 1,227,206	$ 1,060,353	$ 1,158,880	$ 5,361,960	$ 5,197,292	$ 4,912,782
Total Assets	2,300,215				2,147,640				2,300,215	2,147,640
United States
Segments
Net Sales									4,856,275	4,736,578	4,473,454
Total Assets	2,145,244				1,969,889				2,145,244	1,969,889
Canada
Segments
Net Sales									505,685	460,714	$ 439,328
Total Assets	$ 154,971				$ 177,751				$ 154,971	$ 177,751