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Income Taxes (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Jul. 01, 2024 | Jun. 29, 2025 | Dec. 29, 2024 | Jun. 30, 2024 | Jun. 29, 2025 | Jun. 30, 2024 | Sep. 29, 2024
Income Tax Disclosure [Abstract] |  |  |  |  |  |  |
Effective tax rate |  |  |  |  | 40.90% | 27.70% |
Reduction in income tax expense due to excess tax benefits on share-based payments |  |  |  |  | $ 1,000 | $ 2,900 |
Impairment of goodwill | $ 0 | $ 0 |  | $ 0 | 92,416 | 0 |
Nondeductible expense, impairment losses, amount |  |  |  |  | 58,300 |  |
Legal fees |  | 0 | $ 115,000 | $ 0 | 115,000 | 0 |
Nondeductible expense, legal contingency charge, amount |  |  |  |  | $ 31,300 |  |
Income tax expense, nonoperating |  |  |  |  |  | $ 4,300 |
Effective tax rates, excluding valuation allowance release, non-deductible goodwill impairment charge, transaction costs, and excess tax benefits on share-based payments |  |  |  |  | 27.60% | 27.20% |
Liability for uncertain tax positions |  | $ 52,300 |  |  | $ 52,300 |  | $ 50,100

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