Equity and Incentive Compensation Plans - Weighted-Average Assumptions (Detail)	3 Months Ended	9 Months Ended
	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Disclosure - Weighted-Average Assumptions [Abstract]
Expected volatility	53.40%	52.90%	54.60%
Risk-free interest rate	0.60%	0.90%	0.90%
Expected life (years)	4 years 4 months 24 days	5 years 0 months 0 days	4 years 4 months 24 days
Dividend yield	0.00%	0.00%	0.00%