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Revenue from Contracts with Customers Revenue from Contracts with Customers (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 28, 2025	Jun. 29, 2024	Jun. 28, 2025	Jun. 29, 2024	Sep. 28, 2024
Disaggregation of Revenue [Line Items]
Revenue for adjustments made to performance obligations satisfied in previous periods	$ 4,204	$ (10,565)	$ 15,478	$ (8,181)
Contract loss and contract-related loss reserves	69,832		69,832		$ 71,554
Revenue recognized due to contract liabilities	51,410		214,106
Remaining performance obligation, amount	$ 5,510,000		$ 5,510,000
Remaining performance obligation, percentage	48.00%		48.00%
Minimum
Disaggregation of Revenue [Line Items]
Payment terms - days			30
Maximum
Disaggregation of Revenue [Line Items]
Payment terms - days			60 days
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-06-29
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, expected timing of satisfaction	12 months		12 months