VARIABLE INTEREST ENTITIES BORROWINGS (Schedule of Debt - Parenthetical) (Details) RSO (USD $)	Dec. 31, 2013 Linked Transactions [Member]	Dec. 31, 2012 Linked Transactions [Member]	Dec. 31, 2013 RSO [Member]	Dec. 31, 2012 RSO [Member]	Dec. 31, 2013 RSO [Member] CRE Repurchase Facilities [Member]	Dec. 31, 2012 RSO [Member] CRE Repurchase Facilities [Member]	Dec. 31, 2013 RSO [Member] RREF CDO 2006-1 Senior Notes [Member]	Dec. 31, 2012 RSO [Member] RREF CDO 2006-1 Senior Notes [Member]	Dec. 31, 2013 RSO [Member] RREF CDO 2007-1 Senior Notes [Member]	Dec. 31, 2012 RSO [Member] RREF CDO 2007-1 Senior Notes [Member]	Dec. 31, 2013 RSO [Member] Apidos CDO I Senior Notes [Member]	Dec. 31, 2012 RSO [Member] Apidos CDO I Senior Notes [Member]	Dec. 31, 2013 RSO [Member] Apidos CDO III Senior Notes [Member]	Dec. 31, 2012 RSO [Member] Apidos CDO III Senior Notes [Member]	Dec. 31, 2013 RSO [Member] Apidos Cinco CDO Senior Notes [Member]	Dec. 31, 2012 RSO [Member] Apidos Cinco CDO Senior Notes [Member]	Dec. 31, 2012 RSO [Member] Apidos CLO VIII Senior Notes [Member]	Dec. 31, 2013 RSO [Member] CMBS - Term Repurchase Facilities [Member]	Dec. 31, 2012 RSO [Member] CMBS - Term Repurchase Facilities [Member]	Dec. 31, 2012 RSO [Member] Mortgages [Member]	Aug. 01, 2011 RSO [Member] Mortgages [Member]	Dec. 31, 2012 RSO [Member] Whitney CLO I Senior Notes [Member]	Dec. 31, 2013 RSO [Member] Whitney CLO I, Ltd. [Member]	May 31, 2013 RSO [Member] Whitney CLO I, Ltd. [Member]	Oct. 31, 2012 RSO [Member] Whitney CLO I, Ltd. [Member]
Debt Instrument [Line Items]
Investments in unconsolidated entities			$ 74,438,000	$ 45,413,000
Principal outstanding	64,094,000	20,416,000	1,336,026,000	1,810,524,000			94,209,000	146,419,000	178,556,000	227,468,000	87,131,000	203,242,000	133,326,000	221,963,000	322,000,000	322,000,000	317,600,000	47,613,000	47,492,000	13,600,000	13,600,000	174,103,000
Unamortized debt issuance costs			16,216,000	24,924,000			205,000	755,000	719,000	1,485,000	0	273,000	117,000	659,000	853,000	1,450,000	16,649,000	12,000	23,000	0		2,548,000
Accrued interest expense			1,693,000	2,918,000	26,000	79,000												22,000	23,000
Purchased equity interests																								$ 550,000	$ 20,900,000
Ownership interests in variable interest entity																							68.30%		66.60%