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Reconciliation of Number of Shares Outstanding for Basic and Diluted Earning Per Share (Parenthetical) (Detail) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014
Accounting Policies [Abstract]
Common stock equivalents	497	443

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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