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Stockholders' Equity And Stock-Based Compensation (Forfeiture Rates) (Details) | 12 Months Ended
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Sep. 26, 2025 | Sep. 27, 2024 | Sep. 29, 2023
Stockholders' Equity And Stock-Based Compensation [Abstract] |  |  |
Estimated forfeiture rate, percent | 8.62% | 8.53% | 8.62%

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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Estimated Forfeiture Rate + References No definition available. + Details
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