INCOME TAXES (U.S. Tax Reform) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
INCOME TAXES
Deferred tax liability, Change in statutory tax rate, U.S. only	$ (13.6)
Deferred tax liability, Changes to indefinite reinvestment assertion	0.8
Deferred tax liability, Repatriation Tax (settled with NOL, non-cash)	37.6
Deferred tax liability, Net impacts of U.S. Tax Reform		$ 24.8
Tax expense, Change in statutory tax rate, U.S. only	6.2
Tax expense, Changes to indefinite reinvestment assertion	(0.2)
Tax expense, Repatriation Tax (settled with NOL, non-cash)	1.2
Tax expense, Net impacts of U.S. Tax Reform	7.2
Deferred tax liability, Change in statutory tax rate, U.S. only	(7.4)
Deferred tax liability, Changes to indefinite reinvestment assertion	0.6
Deferred tax liability, Repatriation Tax (settled with NOL, non-cash)	38.8
Current tax receivable, Net impacts of U.S. Tax Reform	$ 32.0