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Summary of Significant Accounting Policies - Schedule of Derivative Instruments in Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2023	Sep. 24, 2022	Sep. 25, 2021	Mar. 23, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gain (loss) on derivative	$ (2.7)	$ 68.5	$ (9.7)
Unrealized gain (loss) on derivative	(13.0)	20.2	(3.5)
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (15.7)	88.7	(13.2)
Derivative, Variable Interest Rate	123.00%
Gain recognized in other comprehensive loss	$ (9.2)	44.0	9.8
Foreign Exchange Forward [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gain (loss) on derivative	1.3	68.5	(3.6)
Unrealized gain (loss) on derivative	(7.5)	14.7	0.5
Foreign Exchange Option
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gain (loss) on derivative	(4.0)	0.0	(6.1)
Unrealized gain (loss) on derivative	(5.5)	5.5	(4.0)
Interest Rate Swap, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]
Derivative, Variable Interest Rate				2.98%
Derivative, Notional Amount				$ 500.0
Interest Rate Swap, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Derivative, Variable Interest Rate				3.46%
Derivative, Notional Amount				$ 500.0
Cash Flow Hedge Derivative Instrument Assets at Fair Value	26.9
Interest Rate Swap
Accumulated Other Comprehensive Income (Loss) [Line Items]
Derivative, Notional Amount	1,000.0
Gain recognized in other comprehensive loss	$ (9.2)	$ 44.0	$ 9.4

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