Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jul. 02, 2022
Federal:
Current	$ 0.3	$ 0.0	$ 0.0
Deferred	0.0	0.0	0.0
Total federal income tax expense	0.3	0.0	0.0
State:
Current	3.3	2.6	(2.2)
Deferred	0.0	0.0	0.0
Total state income tax expense (benefit)	3.3	2.6	(2.2)
Foreign:
Current	32.8	27.6	63.2
Deferred	1.0	5.0	(11.4)
Total foreign income tax expense	33.8	32.6	51.8
Total income tax expense	$ 37.4	$ 35.2	$ 49.6