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Summary of Stock Option Activity (Detail) (USD $)
 12 Months Ended
Feb. 02, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Balance at February 3, 2013, shares 428,930
Granted, shares 0
Exercised, shares (201,442)
Cancelled, shares (5,000)
Balance at February 2, 2014, shares 222,488
Balance at February 3, 2013, weighted average exercise price $ 35.07
Granted, weighted average exercise price $ 0
Exercised, weighted average exercise price $ 32.83
Cancelled, weighted average exercise price $ 34.94
Balance at February 2, 2014, weighted average exercise price $ 37.11
Balance at February 2, 2014, weighted average contractual term remaining (years) 1 year 4 months 21 days
Balance at February 2, 2014, intrinsic value $ 3,874,000 [1]
[1] Intrinsic value for outstanding and vested options is based on the excess, if any, of the market value of our common stock on the last business day of the fiscal year (or $54.52) over the exercise price.