PENSIONS AND OTHER POST-RETIREMENT BENEFITS (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
401(k) Retirement Savings Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Monthly employee contributions (as a percent of compensation)	20.00%
Monthly matching employer contributions (as a percent of compensation)	4.00%
401(k) Retirement Savings Plan | Selling, General and Administrative Expenses
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Plan expense	$ 9.2	$ 8.5	$ 6.6
Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Monthly employee contributions (as a percent of compensation)	5.00%
Pension Plan | Selling, General and Administrative Expenses
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Plan expense			$ 3.9