Leases - Schedule of Lease Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Leases [Abstract]
Operating lease cost	$ 31.4	$ 27.3	$ 61.9	$ 54.8
Short-term lease cost	0.3	0.2	0.7	0.5
Variable lease cost	5.8	4.6	11.5	11.2
Total operating lease cost	$ 37.5	$ 32.1	$ 74.1	$ 66.5