BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $) Share data in Millions, unless otherwise specified	12 Months Ended			138 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011	Feb. 02, 2013
Customers [Abstract]
Concentration risk	No customer accounted for more than 5.0% of our net sales	No customer accounted for more than 5.0%	No customer accounted for more than 5.0%
Advertising expense [Abstract]
Gross advertising costs	$ 9,554,000	$ 8,329,000	$ 7,314,000
Advertising reimbursements	(4,002,000)	(3,748,000)	(3,389,000)
Net advertising costs	5,552,000	4,581,000	3,925,000
Stock repurchase program [Abstract]
Repurchased common stock (in shares)				12.0
Cost of repurchased common stock	49,852,000	68,613,000	37,859,000	323,300,000
Cash and cash equivalents [Abstract]
Cash equivalents related to credit and debit card transactions	3,600,000	3,000,000		3,600,000
Days to collect debit and credit card transactions (in days)	within three business days
Investments [Abstract]
Investments included in other assets	1,900,000	1,400,000		1,900,000
Net unrealized holding gains	100,000	100,000
Trade and other accounts receivable [Abstract]
Allowance for doubtful accounts	42,000	49,000		42,000
Inventory and valuation [Abstract]
Accrual for inventory obsolescence	2,300,000	1,900,000		2,300,000
Accrual for inventory shrinkage	1,500,000	1,600,000		1,500,000
Vendor-owned inventories held at our locations	1,600,000	1,300,000		1,600,000
Property and equipment [Abstract]
Property Plant And Equipment Percentage Of Construction In Progress, Technology Projects	32.00%			32.00%
Property Plan and Equipment Percentage of Construction in Progress, Unopened Stores	2.00%			2.00%
Property Plant And Equipment Percentage Of Construction In Progress, Wholesaling and Logistics Facility and Corporate Headquarters	66.00%			66.00%
Deferred rent [Abstract]
Liability for the current portion of unamortized landlord allowances	2,900,000	3,100,000		2,900,000
Liability for long-term portion of unamortized landlord allowances	8,800,000	8,200,000		8,800,000
Estimate of the non-cash portion of landlord allowances	1,100,000	900,000
Revenue recognition [Abstract]
Days allowed for entire purchase price for merchandise placed on layaway (in days)	within 30 days
Gift card breakage revenue	300,000	200,000	200,000
Net deferred revenue liability	3,900,000	3,500,000		3,900,000
Sales returns [Abstract]
Net sales returns	28,800,000	25,700,000	23,200,000
Accrual for the effect of estimated returns on pre-tax income	400,000	400,000		400,000
Health Claims [Member]
Insurance accrual [Abstract]
Accrual for insurance liability	700,000	800,000		700,000
Workers Compensation and General Liability Stop-loss [Member]
Insurance accrual [Abstract]
Accrual for insurance liability	200,000	400,000		200,000
Health Claims Stop-Loss, Per Year [Member]
Insurance accrual [Abstract]
Stop-loss insurance, maximum per covered person	200,000			200,000
Health Care Claims Stop-loss, Lifetime [Member]
Insurance accrual [Abstract]
Stop-loss insurance, maximum per covered person	2,000,000			2,000,000
Equipment [Member]
Property and equipment [Abstract]
Estimated service lives, minimum range (in years)	3
Estimated service lives, maximum range (in years)	5
Furniture and Fixtures [Member]
Property and equipment [Abstract]
Estimated service lives (in years)	7
Buildings [Member]
Property and equipment [Abstract]
Estimated service lives (in years)	39
Leasehold Improvements [Member]
Property and equipment [Abstract]
Estimated service lives, minimum range (in years)	3
Estimated service lives, maximum range (in years)	10
Nike [Member]
Inventory and valuation [Abstract]
Percentage of purchases from supplier (in hundredths)	48.90%	48.30%	47.80%	48.90%
Second Largest Vendor [Member]
Inventory and valuation [Abstract]
Percentage of purchases from supplier (in hundredths)	12.80%	9.30%	8.10%	12.80%
Third Largest Vendor [Member]
Inventory and valuation [Abstract]
Percentage of purchases from supplier (in hundredths)	10.90%	11.40%	8.30%	10.90%
Under November 2012 Authorization [Member]
Stock repurchase program [Abstract]
Amount authorized for Stock Repurchase Program	250,000,000
Repurchased common stock (in shares)	0.9
Cost of repurchased common stock	49,900,000
Number of restricted stock unit awards repurchased to satisfy tax withholding requirements (in shares)	0.1
Tax withholding requirements	3,900,000
Remaining amount available under Stock Repurchase Program	245,400,000
Under November 2009 Authorization [Member]
Stock repurchase program [Abstract]
Repurchased common stock (in shares)		1.9
Cost of repurchased common stock		68,600,000
Tax withholding requirements		1,100,000
Under August 2004 Authorization [Member]
Stock repurchase program [Abstract]
Repurchased common stock (in shares)			7.8
Cost of repurchased common stock			$ 166,900,000