PROPERTY AND EQUIPMENT (Details)	3 Months Ended		12 Months Ended
	Apr. 29, 2017 USD ($)	Apr. 30, 2016 USD ($)	Jan. 30, 2016 USD ($)	Jan. 28, 2017 USD ($)
Property, Plant and Equipment [Line Items]
netbookvalue	$ 85,600,000	$ 108,200,000
Impairment of Long-Lived Assets Held-for-use	$ 484,000	0
Number of Underperforming Stores	6
Property and equipment, gross	$ 852,783,000	833,584,000		$ 841,270,000
Less accumulated depreciation and amortization	(588,899,000)	(550,136,000)		(576,990,000)
Property and equipment, net	263,884,000	283,448,000		264,280,000
Property and equipment, outstanding	4,800,000	4,400,000	$ 9,400,000
Land and land improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	3,403,000	3,403,000		3,403,000
Building and improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	35,548,000	35,548,000		35,548,000
Material handling equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	48,345,000	48,345,000		48,345,000
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	316,550,000	329,718,000		317,884,000
Store fixtures and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	222,747,000	229,170,000		223,873,000
Capitalized software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	205,625,000	178,318,000		204,901,000
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 20,565,000	$ 9,082,000		$ 7,316,000
Number of stores tested for impairment [Member]
Property, Plant and Equipment [Line Items]
Number of Stores	1,025	1,053