Leases - Schedule of Right of Use Assets and Operating Lease Liabilities (Details) - USD ($) $ in Millions	6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Jun. 30, 2025
Leases [Abstract]
Cash paid for operating lease liabilities	$ 64.9	$ 59.3
Operating lease ROU assets obtained in exchange for new operating lease liabilities	$ 89.8	$ 31.7
Weighted-average remaining lease term (in years)	6 years		6 years
Weighted-average discount rate	3.90%		3.60%
Current operating lease liability	$ 107.0		$ 100.8