EQUITY - Preferred Stock (Details) $ / shares in Units, $ in Millions					12 Months Ended
	Jun. 18, 2019 shares	Jun. 14, 2019 shares	Feb. 04, 2019 shares	Jan. 15, 2019 shares	Jun. 30, 2019 USD ($) $ / shares shares	Jun. 17, 2019 shares	Jun. 13, 2019 shares	Jan. 14, 2019 shares	Jun. 30, 2018 $ / shares shares	May 18, 2018 shares	May 17, 2018 shares	Nov. 16, 2017 shares	Mar. 27, 2017 shares	Feb. 16, 2017 shares
Class of Stock [Line Items]
Preferred stock, par value (in dollars per share) | $ / shares					$ 0.01				$ 0.01
Preferred stock, shares authorized (shares)					20,000,000				20,000,000
Preferred stock, shares outstanding (shares)					9,400,000				5,000,000
Amount of preferred stock | $					$ 0.7
Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock, par value (in dollars per share) | $ / shares					$ 0.01
Number of votes entitled to holders					0
Preferred stock, shares authorized (shares)	2,900,000			3,300,000	2,900,000	3,300,000		6,300,000		6,300,000	6,500,000
Stock cancelled during period (in shares)	400,000			3,000,000.0
Preferred stock, shares outstanding (shares)					1,500,000							200,000	1,000,000.0	300,000
Series A-1 Preferred Stock
Class of Stock [Line Items]
Preferred stock, par value (in dollars per share) | $ / shares					$ 0.01
Number of votes entitled to holders					0
Preferred stock, shares authorized (shares)		7,900,000			7,900,000		6,900,000
Stock authorized, designated and issued during period (in shares)		1,000,000.0	6,900,000
Preferred stock, shares outstanding (shares)		1,000,000.0	6,900,000		7,900,000
Tranche One | Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares outstanding (shares)					1,000,000.0
Tranche One | Series A-1 Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares outstanding (shares)					4,100,000
Tranche One | Stock Compensation Plan | Series A-1 Preferred Stock
Class of Stock [Line Items]
Award vesting rights, percentage					60.00%
Vesting period					3 years
Tranche Two | Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares outstanding (shares)					300,000
Tranche Two | Series A-1 Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares outstanding (shares)					1,400,000
Tranche Two | Stock Compensation Plan | Series A-1 Preferred Stock
Class of Stock [Line Items]
Award vesting rights, percentage					20.00%
Vesting period					4 years
Tranche Three | Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares outstanding (shares)					200,000
Tranche Three | Series A-1 Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares outstanding (shares)					1,400,000
Tranche Three | Stock Compensation Plan | Series A-1 Preferred Stock
Class of Stock [Line Items]
Award vesting rights, percentage					20.00%
Vesting period					5 years
Tranche Four | Series A-1 Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares outstanding (shares)					600,000
Tranche Five | Series A-1 Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares outstanding (shares)					200,000
Tranche Six | Series A-1 Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares outstanding (shares)					200,000
Other Noncurrent Liabilities
Class of Stock [Line Items]
Amount of preferred stock | $					$ 2.0