Revenue from Contracts with Customers Revenue from Contracts with Customers (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 30, 2023	Dec. 31, 2022	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Revenue for adjustments made to performance obligations satisfied in previous periods	$ (95)	$ 4,300
Contract loss and contract-related loss reserves	54,553		$ 45,257
Revenue recognized due to contract liabilities	97,705
Remaining performance obligation, amount	$ 5,300,000
Remaining performance obligation, percentage	47.00%
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: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, expected timing of satisfaction	12 months