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Summary of Stock-Settled Stock Appreciation Right Activity (Detail) (Stock-Settled Stock Appreciation Rights)
9 Months Ended
Nov. 02, 2014
Stock-Settled Stock Appreciation Rights
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Balance at February 2, 2014, shares 1,859,762
Granted, shares 0
Converted into common stock, shares (524,507)
Cancelled, shares (23,950)
Balance at November 2, 2014, shares 1,311,305
Vested at November 2, 2014, shares 1,033,209
Vested plus expected to vest at November 2, 2014, shares 1,234,382