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Summary of Additional Information about Restricted Stock units (Detail) - USD ($)
12 Months Ended
Feb. 02, 2020
Feb. 03, 2019
Jan. 28, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average grant date fair value per share of awards granted $ 58.18 $ 49.57 $ 52.76
Intrinsic value of awards released [1] $ 65,403,000 $ 34,213,000 $ 35,508,000
[1] Intrinsic value for releases is based on the market value on the date of release.