SHARE-BASED COMPENSATION PLANS - Non-Vested Shares of Series A Preferred Stock (Details) - Series A Preferred Stock - $ / shares shares in Millions	1 Months Ended	12 Months Ended
	Apr. 30, 2015	Jun. 30, 2017
Shares
Outstanding, beginning balance (in shares)		1.7
Granted (in shares)		2.5
Vested (in shares)	(0.6)	(1.0)
Outstanding, ending balance (in shares)		3.2
Weighted Average Grant Date Fair Value
Outstanding and nonvested, beginning balance (in dollars per share)		$ 5.24
Granted (in dollars per share)		4.53
Vested, weighted average grant date fair value (in dollars per share)		3.63
Outstanding and nonvested, ending balance (in dollars per share)		$ 5.19