SHARE-BASED COMPENSATION PLANS - Outstanding Preferred Stock Activity (Details) - Series A and Series A-1 Preferred Stock $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2020 USD ($) $ / shares shares
Shares
Outstanding, beginning of period (in shares) | shares	9.4
Forfeited (in shares) | shares	(7.9)
Outstanding, end of period (in shares) | shares	1.5
Vested and expected to vest (in shares) | shares	1.0
Weighted Average Exercise Price
Outstanding, beginning of period (in dollars per share) | $ / shares	$ 11.47
Forfeited (in dollars per share) | $ / shares	9.46
Outstanding, end of period (in dollars per share) | $ / shares	22.10
Vested and expected to vest (in dollars per share) | $ / shares	$ 22.39
Aggregate Intrinsic Value and Weighted Average Remaining Contractual Term
Vested and expected to vest, aggregate intrinsic value | $	$ 0.0
Vested and expected to vest, weighted average remaining contractual term	3 years 8 months 26 days