Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Income tax expense	$ 21.0	$ 12.5	$ 37.4	$ 21.0
Income tax benefit as a percent of pre-tax income (loss)	20.00%	22.60%	18.10%	19.50%
Tax benefit attributable to employee share-based compensation	$ 3.0		$ 9.8	$ 4.7
Impact of restructuring charges			$ 0.9