Interest Expense, Net - Components of Interest Expense, Net (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Other Income and Expenses [Abstract]
Interest expense on borrowings	$ (15.0)	$ (14.2)
Interest income	0.6	1.0
Interest expense, net	$ (14.4)	$ (13.1)