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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. 27, 2025	Sep. 28, 2024	Sep. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amount of realized gain (loss) recognized in income	$ 2.5	$ 3.9	$ (2.7)
Amount of unrealized gain (loss) recognized in income	7.3	(20.1)	(13.0)
Amount of gain (loss) recognized in income	9.8	(16.2)	(15.7)
Forward foreign currency contracts
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amount of realized gain (loss) recognized in income	2.5	3.9	1.3
Amount of unrealized gain (loss) recognized in income	8.1	(20.9)	(7.5)
Foreign currency option contracts
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amount of realized gain (loss) recognized in income	0.0	0.0	(4.0)
Amount of unrealized gain (loss) recognized in income	$ (0.8)	$ 0.8	$ (5.5)

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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Aggregate impact of foreign currency derivatives on earnings for the period. Includes impact of foreign currency cash flow hedge ineffectiveness and the ineffectiveness of fair value hedging derivatives and full change in fair value of the foreign currency derivatives not designated as hedging instruments.

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