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Earnings per Share - Additional Information (Detail) In Millions, unless otherwise specified	3 Months Ended
	May 03, 2014	May 04, 2013
Outstanding Stock Awards
Earnings Per Share Disclosure [Line Items]
Shares that were not included in the computation of weighted average diluted common share amounts as the effect of doing so would have been anti-dilutive	2.5	1.0
Restricted Stock Units (RSUs)
Earnings Per Share Disclosure [Line Items]
Shares that were not included in the computation of weighted average diluted common share amounts as the effect of doing so would have been anti-dilutive	1.7	0.8
Shares of restricted stock units not included in the computation of weighted average diluted common share amounts because the number of shares ultimately issued is contingent on performance	1.3	0.6

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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