LEASE COMMITMENTS - Narrative (Details) - USD ($)	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Operating Leased Assets [Line Items]
Rent expense	$ 166,100,000	$ 82,500,000	$ 87,100,000
Payments collected from sub-lessors	6,000,000	5,400,000	4,300,000
Selling, general and administrative
Operating Leased Assets [Line Items]
Estimated net future minimum lease (recoveries) payments and related costs for facilities no longer used	$ 9,200,000.0	$ 0	$ (700,000)
Minimum
Operating Leased Assets [Line Items]
Operating leases renewal term	1 year
Maximum
Operating Leased Assets [Line Items]
Operating leases renewal term	9 years