MANDATORILY REDEEMABLE FINANCIAL INTEREST (Details) - USD ($) $ in Millions		12 Months Ended
	May 23, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016	Jan. 01, 2014
Schedule of Equity Method Investments [Line Items]
Purchase of additional noncontrolling interest		$ 0.0	$ 9.8	$ 0.7
U.A.E. JV
Schedule of Equity Method Investments [Line Items]
Percentage of redeemable noncontrolling interest					25.00%
Mandatorily redeemable financial instrument liability		8.2	5.2
U.A.E. JV | Other Noncurrent Liabilities
Schedule of Equity Method Investments [Line Items]
Mandatorily redeemable financial instrument liability		6.7	4.7
U.A.E. JV | Accrued Expenses and Other Current Liabilities
Schedule of Equity Method Investments [Line Items]
Mandatorily redeemable financial instrument liability		1.5	0.5
U.A.E. JV | Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Joint venture total assets		33.2	22.8
Joint venture total liabilities		20.2	16.5
South-east Asian Subsidiary
Schedule of Equity Method Investments [Line Items]
Percentage of redeemable noncontrolling interest	49.00%
Mandatorily redeemable financial instrument liability		45.1	49.3
Purchase of additional noncontrolling interest	$ 45.0
South-east Asian Subsidiary | Other Noncurrent Liabilities
Schedule of Equity Method Investments [Line Items]
Mandatorily redeemable financial instrument liability		0.0	41.7
South-east Asian Subsidiary | Accrued Expenses and Other Current Liabilities
Schedule of Equity Method Investments [Line Items]
Mandatorily redeemable financial instrument liability		$ 45.1	$ 7.6