FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of Changes in Level 3 Financial Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 14.0	$ 12.0
Additional contingent consideration incurred	$ 0.0	$ 14.0
Fair Value Recurring Basis Unobservable Input Reconciliation Liability Gain Loss Statement Of Income Extensible List Not Disclosed Flag	Net decrease in contingent consideration liability	Net decrease in contingent consideration liability
Net decrease in contingent consideration liability	$ 0.0	$ (6.7)
Foreign currency impact on contingent consideration liability	0.0	(0.1)
Payments	$ 0.0	(5.2)
Ending balance		$ 14.0