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Related Party Transactions (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Dec. 29, 2019 | Dec. 30, 2018 | Sep. 29, 2019
Related Party Transactions [Abstract] |  |  |
Related party revenues | $ 28,900 | $ 23,900 |
Related party expenses | 28,700 | $ 23,400 |
Accounts receivable, net | 20,573 |  | $ 19,351
Contract assets | 11,415 |  | 9,681
Contract liabilities | $ (395) |  | $ (111)

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