Balance Sheet and Other Details - Contract Liabilities (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Apr. 03, 2021	Apr. 03, 2021	Jun. 27, 2020
Capitalized Contract Cost [Line Items]
Unbilled receivables	$ 5.9	$ 5.9	$ 3.8
Deferred revenue:
Balance at beginning of period	82.0	74.6
Revenue deferrals for new contracts	32.1	93.5
Revenue recognized during the period	(28.1)	(82.1)
Balance at end of period	$ 86.0	$ 86.0
Minimum
Capitalized Contract Cost [Line Items]
Payment period from invoice date		30 days
Maximum
Capitalized Contract Cost [Line Items]
Payment period from invoice date		90 days