Balance Sheet and Other Details - Other Current Liabilities (Details) - USD ($) $ in Millions	Jun. 27, 2020	Jun. 29, 2019
Balance Sheet and Other Details [Abstract]
Customer prepayments	$ 0.5	$ 30.2
Restructuring accrual	6.5	8.6
Income tax payable	10.7	8.5
Warranty accrual	4.6	4.7
Transaction tax payable	3.2	3.8
Operating lease liabilities	11.7	0.0
Foreign exchange forward contracts liability	1.5	4.0
Other	9.7	12.6
Other current liabilities	$ 48.4	$ 72.4
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent	us-gaap:OtherLiabilitiesCurrent