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GOODWILL - Schedule of Goodwill (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2011
Goodwill [Line Items]
Gross Carrying Value	$ 486,743	$ 491,087
Accumulated Impairment	(74,100)	(74,100)
Net	412,643	416,987	$ 417,393
North American Value
Goodwill [Line Items]
Accumulated Impairment				$ (74,100)
Net	$ 184,800	$ 188,900