Income Taxes - Schedule of Provision (Benefit) for Income Taxes from Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Current:
Federal	$ (14.7)	$ (37.3)	$ 1.3
State	0.1	(0.6)	1.8
Foreign	3.7	3.2	1.9
Total current	(10.9)	(34.7)	5.0
Deferred:
Federal	(1.0)	(22.6)	(1.8)
State	(2.7)	(10.5)	0.3
Foreign	0.6	(0.5)	1.1
Total deferred	(3.1)	(33.6)	(0.4)
Total income tax (benefit) expense	$ (14.0)	$ (68.3)	$ 4.6