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Net Income Per Share - Additional Information (Detail)	3 Months Ended		9 Months Ended
Net Income Per Share - Additional Information (Detail)	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Nonparticipating Securities - Stock Options
Earnings Per Share Disclosure
Antidilutive securities excluded from the computations of earnings per share	585,250	616,175	698,040	1,637,275
Nonparticipating Securities - Performance-based Restricted Units
Earnings Per Share Disclosure
Antidilutive securities excluded from the computations of earnings per share	0	23,003	0	15,890

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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