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Borrowings and Credit Arrangements - Interest Expense Credit Agreement (Details) - Credit Agreement 2021 - USD ($) $ in Millions	12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 30, 2023
Line of Credit Facility [Line Items]
Interest expense	$ 71.2	$ 85.8	$ 92.4
Non-cash interest expense	$ 2.1	$ 2.2	$ 2.3
Weighted average interest rate	5.47%	6.39%	5.84%
Interest rate at end of period		5.96%	6.42%

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Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.

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Aggregate amount of interest expense on all borrowings.

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