STOCK-BASED COMPENSATION - Schedule of Weighted Average Fair Values (Details) - $ / shares	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
SARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair values per stock based compensation award granted (in dollars per share)	$ 3.68	$ 3.51	$ 6.16
RSAs & RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair values per stock based compensation award granted (in dollars per share)	11.73	11.18	15.95
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair values per stock based compensation award granted (in dollars per share)	$ 12.28	$ 12.11	$ 15.15