Non-Controlling Interest Redeemable Convertible Preferred Stock and Derivative Liability - Reconciliation of Fair Value of Embedded Derivative (Details) - Embedded Derivative Liability - Series A Preferred Stock $ in Millions	12 Months Ended
	Jun. 29, 2019 USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation
Balance as of beginning of period	$ 52.4
Unrealized gain on the Series A Preferred Stock derivative liability up through the conversion date	(8.8)
Settlement of the derivative liability upon conversion of Series A Preferred Stock	(43.6)
Balance as of end of period	$ 0.0