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Debt, Long-Term Debt Instruments (Details) - USD ($) $ in Millions	Sep. 27, 2024	Sep. 29, 2023	Jul. 26, 2021	May 26, 2021
Debt Instrument [Line Items]
Unamortized debt discount and issuance costs	$ (5.7)	$ (7.7)
Total debt	994.3	1,292.3
Less: current portion of long-term debt	0.0	299.4
Long-term debt	994.3	992.9
Term Loans
Debt Instrument [Line Items]
Debt, gross	0.0	$ 300.0	$ 1,000.0
Effective interest rate		6.37%
2026 Notes
Debt Instrument [Line Items]
Debt, gross	$ 500.0	$ 500.0		$ 500.0
Effective interest rate	1.97%
2031 Notes
Debt Instrument [Line Items]
Debt, gross	$ 500.0	$ 500.0		$ 500.0
Effective interest rate	3.13%