Revenue and Contract Balances - Summary of Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands	Sep. 28, 2025	Sep. 29, 2024
Disaggregation of Revenue [Line Items]
Contract assets	$ 138,232	$ 129,678
Contract liabilities	(420,254)	(351,738)
Contract liabilities - non-current	(2,628)	0
Net contract liabilities	(284,650)	(222,060)
Contract retentions
Disaggregation of Revenue [Line Items]
Contract assets	$ 12,800	$ 7,900