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Borrowings and Credit Arrangements - Interest Expense Credit Agreement (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2023	Sep. 24, 2022	Sep. 25, 2021
2018 Credit Agreement
Line of Credit Facility [Line Items]
Interest expense			$ 22.0
Non-cash interest expense			$ 2.5
Weighted average interest rate			1.13%
Interest rate at end of period			1.08%
Credit Agreement 2021
Line of Credit Facility [Line Items]
Interest expense	$ 92.4	$ 31.8
Non-cash interest expense	$ 2.3	$ 2.2
Weighted average interest rate	5.84%	1.74%
Interest rate at end of period	6.42%	4.18%

X

- Definition

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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