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Reconciliation of U.S. Federal Statutory Income Tax Rate and Worldwide Effective Income Tax Rate (Detail) | 12 Months Ended
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Feb. 02, 2019 | Feb. 03, 2018 | Jan. 28, 2017
Income Tax Disclosure [Abstract] |  |  |
U.S. federal statutory income tax rate | 21.00% | 33.70% | 35.00%
Effective state income tax rate | 4.50% | 3.60% | 3.50%
Impact of foreign operations | 1.20% | (0.10%) | (0.20%)
Excess share-based compensation | (1.20%) | (1.30%) | 0.00%
Impact of 2017 Tax Act | 1.50% | (2.30%) | 0.00%
All other | (0.30%) | (1.20%) | 0.00%
Worldwide effective income tax rate | 26.70% | 32.40% | 38.30%

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