SHARE-BASED COMPENSATION PLANS - Outstanding and Nonvested Restricted Stock Activity (Details) - Restricted Stock - $ / shares shares in Millions	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Shares
Outstanding, beginning balance (in shares)	0.6
Granted (in shares)	0.4	0.3	0.0
Vested (in shares)	(0.3)
Outstanding, ending balance (in shares)	0.7	0.6
Weighted Average Grant Date Fair Value
Outstanding and nonvested, beginning balance (in dollars per share)	$ 6.58
Granted (in dollars per share)	6.62
Vested (in dollars per share)	5.94
Outstanding and nonvested, ending balance (in dollars per share)	$ 6.94	$ 6.58