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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Oct. 03, 2020 | Oct. 05, 2019 | Oct. 03, 2020 | Oct. 05, 2019 | Dec. 30, 2017
Income Tax Disclosure [Abstract] |  |  |  |  |
Effective income tax rate | 21.80% | 84.20% | 10.50% | 129.00% |
Net discrete income tax benefits of CARES Act |  |  | $ 9.3 |  |
Federal statutory income tax rate |  |  |  |  | 35.00%

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