INCOME TAXES (Reconciliation of Income Tax Provision) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
INCOME TAXES
Expected provision at the statutory rate	$ 18.2	$ 11.1	$ 24.9	$ 20.0
Stock-based compensation	(0.6)	2.5	0.1	3.6
State income taxes, net of federal benefit	2.8	2.5	4.7	4.0
Change in statutory tax rate, outside U.S.				(0.1)
Change in uncertain tax benefits		6.4	1.0	6.4
Foreign tax rate differential	0.4	1.3	1.6	1.5
State NOL expirations			1.6
Adjustments to taxes recorded in a prior year	2.8		2.8
U.S. Tax Reform		(0.4)		7.2
Change in valuation allowance	(1.3)	(0.5)	(1.3)	(0.8)
Other, net	2.8	(0.4)	3.7	1.2
Provision for income taxes	$ 25.1	$ 22.5	$ 39.1	$ 43.0