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v3.25.3

Description of Business and Basis of Presentation - Schedule of Revenues Realized from Each of These Types of Contracts (Details) | 12 Months Ended
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Sep. 26, 2025 | Sep. 27, 2024 | Sep. 29, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |
Cost-reimbursable | 68.00% | 69.00% | 70.00%
Fixed-price | 32.00% | 31.00% | 30.00%

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