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Debt - Interest Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Jul. 03, 2021
Jun. 27, 2020
Jun. 29, 2019
Debt Disclosure [Abstract]      
Interest expense-contractual interest $ 9.5 $ 8.5 $ 8.8
Amortization of debt issuance cost 2.0 1.4 1.4
Accretion of debt discount $ 21.7 $ 20.8 $ 21.3