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Income Taxes - Schedule of Reconciliation of Consolidated Provisions for Income Taxes from Continuing Operations (Details) - USD ($) $ in Millions | 12 Months Ended
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Apr. 30, 2022 | May 01, 2021 | May 02, 2020
Income Tax Disclosure [Abstract] |  |  |
Income tax at statutory rate (as a percent) | 21.00% | 21.00% | 21.00%
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract] |  |  |
Income tax at statutory rate | $ 24.9 | $ 28.3 | $ 31.2
State income taxes, net of federal benefit | 0.6 | 0.1 | 1.5
Withholding taxes | 2.5 | 2.7 | 2.3
Non-deductible compensation | 2.1 | 0.5 | 0.2
Foreign tax differential | (8.1) | (10.8) | (8.3)
U.S. tax on foreign income | (1.7) | 2.8 | (1.0)
Foreign investment tax credit |  | (7.2) | (0.8)
Research and development | (2.6) | (2.2) | (0.6)
Change in tax reserve | (0.1) | 0.1 | 2.2
Change in valuation allowance | (2.0) | 1.8 | 0.8
Tax rate change, foreign | 0.1 | (0.1) | (0.1)
Other, net | 0.6 | (3.4) | (2.1)
Total income tax expense | $ 16.3 | $ 12.6 | $ 25.3
Effective income tax rate | 13.80% | 9.30% | 17.00%

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