INCOME TAXES (Schedule of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
INCOME TAXES
Balance, beginning of year	$ 3.0	$ 0.2
Additions for current year tax positions	1.5	1.2
Additions for prior year tax positions	11.5	1.7
Reductions as a result of settlement with tax authority	(0.3)	(0.1)
Balance, end of year	15.7	3.0
Interest and penalties included in balance	2.2	0.1
Amount, if recognized, would impact the effective income tax rate	10.0	1.8
Amount that could be settled within the next year	$ 10.0	$ 1.9