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Description of Business and Basis of Presentation - Schedule of Percentage Revenues Realized by Contract (Details) | 12 Months Ended
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Oct. 02, 2020 | Sep. 27, 2019 | Sep. 28, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |
Cost-reimbursable | 76.00% | 76.00% | 74.00%
Fixed-price | 24.00% | 24.00% | 26.00%

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- Definition Revenue From Cost Reimbursable Contracts Percentage + References No definition available. + Details
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