Income Taxes - Schedule of Income Before Income Taxes for the Company's Domestic and Foreign Operations (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Domestic	$ (74.0)	$ (252.5)	$ 20.9
Foreign	10.9	(45.4)	(14.8)
(Loss) income before income taxes	$ (63.1)	$ (297.9)	$ 6.1

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details