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Revenue and Contract Balances - Summary of Contract Liabilities/Assets (Details) - USD ($) $ in Thousands | Jun. 29, 2025 | Sep. 29, 2024
--- | --- | ---
Disaggregation of Revenue [Line Items] |  |
Contract assets | $ 142,852 | $ 129,678
Contract liabilities - current | (389,856) | (351,738)
Contract liabilities - non-current | (6,687) | 0
Net contract liabilities | (253,691) | (222,060)
Contract Retentions |  |
Disaggregation of Revenue [Line Items] |  |
Contract assets | $ 11,700 | $ 7,900

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