MANDATORILY REDEEMABLE FINANCIAL INTEREST (Details) - USD ($) $ in Millions		1 Months Ended	12 Months Ended
	May 23, 2017	Jul. 31, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Schedule of Equity Method Investments [Line Items]
Purchase of additional noncontrolling interest			$ 0.0	$ 0.0	$ 9.8
U.A.E. JV
Schedule of Equity Method Investments [Line Items]
Percentage of redeemable noncontrolling interest			25.00%
Mandatorily redeemable financial instrument liability			$ 7.5	8.2
U.A.E. JV | Other Noncurrent Liabilities
Schedule of Equity Method Investments [Line Items]
Mandatorily redeemable financial instrument liability			6.1	6.7
U.A.E. JV | Accrued Expenses and Other Current Liabilities
Schedule of Equity Method Investments [Line Items]
Mandatorily redeemable financial instrument liability			1.4	1.5
U.A.E. JV | Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Joint venture total assets			37.2	33.2
Joint venture total liabilities			26.7	20.2
South-east Asian Subsidiary
Schedule of Equity Method Investments [Line Items]
Percentage of redeemable noncontrolling interest	49.00%
Mandatorily redeemable financial instrument liability			$ 50.4	$ 45.1
Purchase of additional noncontrolling interest	$ 45.0
Subsequent Event | South-east Asian Subsidiary
Schedule of Equity Method Investments [Line Items]
Purchase of additional noncontrolling interest		$ 45.0