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Income Taxes - Provision for Income Taxes Differs from Federal Statutory Rate (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2023	Jun. 25, 2022	Jun. 26, 2021
Income Tax Disclosure [Abstract]
Provision at U.S. federal statutory tax rate	$ 26.4	$ 67.3	$ 25.1
State income taxes	0.0	0.0	0.1
Non-deductible share-based compensation	6.6	7.9	5.2
(Windfall)/shortfall related to share-based compensation	(1.3)	(18.1)	(3.8)
Non-deductible officer compensation	6.4	6.4	6.4
Business credits	(5.2)	(10.0)	(3.8)
Foreign tax differential	(0.5)	6.4	(6.7)
U.S. inclusion of foreign income	21.0	3.6	5.2
Deferred taxes on unremitted foreign earnings	0.3	0.7	3.5
Other differences	(1.3)	0.4	0.2
Provision for income taxes	$ 52.4	$ 64.6	$ 31.4

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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