Equity and Incentive Compensation Plans - Weighted-Average Assumptions (Detail)	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Disclosure - Weighted-Average Assumptions [Abstract]
Expected volatility	47.50%	50.90%	54.60%
Risk-free interest rate	1.70%	0.90%	0.90%
Expected life (years)	5 years 4 months 24 days	4 years 10 months 24 days	4 years 4 months 24 days
Dividend yield	0.00%	0.00%	0.00%