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Income Taxes - Summary of Income Taxes Paid (Refunded) (Parenthetical) (Detail) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 31, 2020 | Nov. 01, 2020 | Aug. 02, 2020 | May 02, 2021
Income Tax Disclosure [Abstract] |  |  |  |
United States Federal - AMT credit refunds |  |  |  | $ 1,500,000
Percentage of expected alternative minimum tax amount refundable in fiscal year 2021 |  |  |  | 50.00%
Percentage of expected alternative minimum tax amount refundable in fiscal year 2022 |  |  |  | 50.00%
Percentage of received alternative minimum tax |  | 50.00% | 50.00% |
AMT credit carryforward refundable balance amount received |  |  | $ 746,000 |
Percentage of AMT credits refundable under CARES Act |  |  |  | 100.00%
Percentage of remaining refundable AMT credit carryforward | 50.00% |  |  |
AMT credit carryforward remaining refundable balance amount received |  | $ 764,000 |  |

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