EQUITY STRUCTURE AND ACCOUNTS - Tax Treatment of Aggregate Distributions per Common Stock Paid (Details) - $ / shares					3 Months Ended				12 Months Ended
	Dec. 10, 2015	Sep. 10, 2015	Jun. 15, 2015	Apr. 06, 2015	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Distribution Made to Limited Liability Company (LLC) Member [Line Items]
Dividend per Share					$ 1.45	$ 0.275	$ 0.25	$ 0.25
Class A common stock
Distribution Made to Limited Liability Company (LLC) Member [Line Items]
Dividend per Share	$ 1.45	$ 0.275	$ 0.25	$ 0.25					$ 2.225	$ 0
Ordinary Dividends	1.306	0.275	0.250	0.250					2.081
Qualified Dividends	0.156	0.275	0.250	0.250					0.931
Capital Gain	0.144	0.000	0.000	0.000					0.144
Unrecaptured 1250 Gain	$ 0.020	$ 0.000	$ 0.000	$ 0.000					$ 0.020