Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Jun. 30, 2018
Operating Loss Carryforwards [Line Items]
Income tax expense (benefit)	$ 5.7	$ 2.0
Unrecognized tax benefits	51.9		$ 48.6
Interest and penalties accrued	1.7
Unrecognized tax benefits that may be recognized during the next twelve months	$ 1.3
Foreign
Operating Loss Carryforwards [Line Items]
Tax benefit related to income tax intraperiod tax allocation		$ 2.8