Reconciliation of Provision/Benefit for Income Taxes to Statutory Tax Rate (Detail)	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Reconciliation of Statutory Federal Tax Rate [Line Items]
Statutory federal rate	35.00%	35.00%	35.00%
State and local taxes, net of federal benefit and other	2.60%	(2.30%)	1.60%
Stock-based compensation expense	0.20%	(1.30%)	(0.50%)
FIN 48 reserve	0.00%	9.10%	(0.80%)
Other permanent differences, net	(0.70%)	1.70%	3.40%
Effective income tax rate	37.10%	42.20%	38.70%