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Income Taxes - Uncertainty in Income Taxes - Narrative (Detail) - USD ($) | Apr. 28, 2024 | Apr. 30, 2023 | May 01, 2022 | May 02, 2021
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Income Taxes [Line Items] |  |  |  |
Unrecognized tax benefits | $ 1,258,000 | $ 1,179,000 | $ 1,101,000 | $ 1,444,000
Unrecognized tax benefits that would favorably impact effective income tax expense if recognized | 1,300,000 | 1,200,000 |  |
Gross amount of interest and penalties due to unrecognized tax benefits | $ 281,000 | $ 239,000 |  |

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