Debt - Interest Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 28, 2024	Dec. 30, 2023
Debt Disclosure [Abstract]
Interest expense-contractual interest	$ 4.7	$ 5.0	$ 9.5	$ 10.0
Amortization of debt issuance cost	0.6	0.6	1.2	1.3
Accretion of debt discount	1.2	1.2	2.4	2.4
Other	1.0	1.0	1.9	2.0
Total interest expense	$ 7.5	$ 7.8	$ 15.0	$ 15.7