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Description of Business and Basis of Presentation (Tables)
12 Months Ended
Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Revenues Realized from Each of These Types of Contracts The percentage of revenues realized from each of these types of contracts for the fiscal years ended September 30, 2022, October 1, 2021 and October 2, 2020 was as follows:
 For the Years Ended
 September 30, 2022October 1, 2021 October 2, 2020
Cost-reimbursable74%76%76%
Fixed-price26%24%24%