INCOME TAXES (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Provision for income taxes:
Current federal income tax expense	$ 78,956	$ 87,679	$ 89,198
Current state income tax expense	9,802	11,128	10,760
Deferred income tax expense (benefit)	(1,217)	(1,675)	(2,086)
Total	$ 87,541	$ 97,132	$ 97,872
Reconciliation of effective tax rate to statutory rate:
Statutory rate	35.00%	35.00%	35.00%
State income tax effect	2.80%	2.80%	2.70%
Tax exempt interest income	(0.10%)	(0.10%)	(0.10%)
Other	(0.40%)	(0.30%)	0.00%
Effective tax rate	37.30%	37.40%	37.60%
Deferred income tax assets (liabilities):
Inventory	$ 6,141	$ 5,345
Stock-based compensation	3,596	3,985
Accrued compensation	4,896	5,409
Accrued store operating costs	1,140	1,176
Realized and unrealized loss on securities	1,173	662
Gift certificates redeemable	1,784	1,592
Allowance for doubtful accounts	3	3
Deferred rent liability	14,672	15,009
Property and equipment	(31,561)	(32,496)
Less: Valuation allowance	(518)	(518)
Net deferred income tax asset (liability)	$ 1,326	$ 167