SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Jun. 30, 2024
Accounting Policies [Abstract]
Restricted cash	$ 19.0		$ 19.0		$ 19.8
Effective income tax rate, percentage	45.90%	27.70%	35.90%	36.40%
Change in enacted tax rate, amount				$ 24.3
Gross unrecognized tax benefits	$ 212.5		$ 212.5		215.3
Unrecognized tax benefits that would impact effective tax rate	178.7		178.7
Unrecognized tax benefits, net	213.9		213.9		200.2
Interest and penalties expense	0.8	$ 0.7	4.6	$ 2.0
Gross accrued interest and penalties	34.8		34.8		$ 30.2
Reasonably possible decrease in UTBs (up to)	$ 29.6		$ 29.6