EQUITY AND EARNINGS PER SHARE - Narrative (Details) - USD ($)					1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 23, 2016	Jun. 27, 2016	Mar. 22, 2016	Dec. 10, 2015	Aug. 31, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Jan. 19, 2016	Dec. 31, 2015
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Dividend declared per Share of Common Stock (in dollars per share)	$ 0.46	$ 0.46	$ 0.46	$ 0.46		$ 0.46	$ 0.46	$ 1.38	$ 1.29
Dividends	$ 115,400,000	$ 106,000,000	$ 106,000,000	$ 106,000,000				$ 327,399,000
Common stock repurchase amount authorized (up to)										$ 200,000,000
Stock issued during period, shares, new issues (in shares)					20,000,000.0
Shares issued, price per share (in dollars per share)					$ 14.20
Issuance of common stock					$ 278,775,000			278,775,000
Issuance of common stock								$ 279,600,000	$ 882,166,000
Options granted (in shares)								2,002,000
Options exercised (in shares)								1,100,497
Weighted average exercise price, exercised (in dollars per share)								$ 10.59
Common stock, shares outstanding (in shares)						250,773,117		250,773,117			230,471,202
Share price (in dollars per share)						$ 13.81		$ 13.81
Diluted common stock equivalent, shares outstanding, adjustment (in shares)						497,690	759,667	309,544	2,821,758
Fortress [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Common stock, shares outstanding (in shares)						2,400,000		2,400,000
Manager [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Stock issued during period, shares, new issues (in shares)					280,111
Options granted (in shares)					2,000,000
Options granted in period, fair value (in shares)					$ 2,300,000
Options exercised (in shares)					1,100,497
Weighted average exercise price, exercised (in dollars per share)					$ 10.59
Employee Stock Option [Member] | Manager [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Risk free interest rate					1.45%
Expected dividend rate					11.80%
Expected volatility rate					27.57%
Expected term (in years)					10 years