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Summary of Stock-Settled Stock Appreciation Right Activity (Detail) - Stock-Settled Stock Appreciation Rights
3 Months Ended
May. 01, 2016
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Balance at January 31, 2016, shares 634,609
Granted, shares 0
Converted into common stock, shares (97,095)
Cancelled, shares 0
Balance at May 1, 2016, shares 537,514