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Balance Sheet Details - Other Non-Current Liabilities (Details) - USD ($)
$ in Millions
Sep. 26, 2020
Jun. 27, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Asset retirement obligations $ 4.6 $ 4.6
Pension accrual 12.4 11.8
Unrecognized tax benefit 18.2 17.3
Other non-current liabilities 3.6 2.3
Other non-current liabilities $ 38.8 $ 36.0