Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 29, 2018	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Contract asset	$ 1.4	$ 1.3
Change in Contract with Customer, Liability (Roll Forward)
Balance at beginning of period	71.9
Revenue deferrals for new contracts	26.7
Revenue recognized during the period	(26.0)
Balance at end of period	72.6
Short-term deferred revenue	61.5	60.6
Long-term deferred revenue	$ 11.1	$ 11.3
Minimum
Disaggregation of Revenue [Line Items]
Payment period from invoice date	30 days
Maximum
Disaggregation of Revenue [Line Items]
Payment period from invoice date	90 days