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Income Taxes - Differences Between Income Tax Expense at Federal Income Tax Rate and Effective Income Tax Rate (Detail) | 9 Months Ended
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Feb. 02, 2020 | Jan. 27, 2019
Income Tax Disclosure [Abstract] |  |
U.S. federal income tax rate | 21.00% | 21.00%
Global Intangible Low Taxed Income Tax (GILTI) | 58.20% | 2.60%
Foreign income tax rate differential | 35.70% | 10.10%
Non-controlling interest income attributable to a consolidated partnership | 21.00% |
Tax effects of Chinese foreign exchange gains | 4.40% | 1.40%
Change in estimate of U.S. valuation allowance | 2.50% | 1.00%
Stock-based compensation | 1.20% | 0.70%
Tax effects of the 2017 Tax Cuts and Jobs Act |  | (5.70%)
Other | (1.20%) | 1.40%
Effective income tax rate | 142.80% | 32.50%

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