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Schedule Of Stock Options Outstanding Expected To Vest And Stock Options Outstanding Exercisable (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 12 Months Ended
Feb. 01, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Shares, Options outstanding expected to vest 9,484
Shares, Options exercisable 22,473
Shares, Total outstanding options vested and expected to vest 31,957
Aggregate Intrinsic Value, Options outstanding expected to vest $ 109,443
Aggregate Intrinsic Value, Options exercisable 835,215
Aggregate Intrinsic Value, Total outstanding options vested and expected to vest $ 944,658
Weighted Average Remaining Contract Life, Options outstanding expected to vest, years 8 years 9 months 18 days
Weighted Average Remaining Contract Life, Options exercisable, years 5 years 2 months 12 days
Weighted Average Remaining Contract Life, Total outstanding options vested and expected to vest, years 6 years 3 months 18 days
WAEP, Options outstanding expected to vest $ 45.82
WAEP, Options exercisable $ 20.19
WAEP, Total outstanding options vested and expected to vest $ 27.80