STOCKHOLDERS' EQUITY - Preferred Stock (Details) $ / shares in Units, item in Millions, $ in Millions	Apr. 22, 2016 USD ($) item $ / shares shares	Jun. 30, 2016 shares
Registration statement
Preferred stock, outstanding shares		0
Registration statement
Registration statement
Maximum amount of offering | $	$ 900
Maximum number of units in offering | item	36
Number of preferred share in a unit	1
Preferred stock stated value | $ / shares	$ 25
Number of warrant in a unit	1
Warrant right to purchase a share of Common Stock	0.25
Cumulative dividend rate (as a percent)	5.50%
Premium of the exercise price of the warrant as a percent to net asset value of common stock	15.00%