LEASES - Schedule of lease cost (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Lease Cost:
Operating lease cost	$ 18.7	$ 18.8
Short-term lease cost	0.9	0.7
Variable lease cost	10.1	11.8
Sublease income	(2.8)	(3.6)
Net lease cost	26.9	27.7
Other information:
Operating cash outflows from operating leases	(18.5)	(16.8)
Right-of-use assets obtained in exchange for lease obligations	$ 4.1	$ 18.6
Weighted-average remaining lease term - real estate	6 years	6 years 6 months
Weighted-average discount rate - real estate leases	4.32%	4.53%