BORROWINGS (Schedule of Debt - Parenthetical) (Details) RSO (Resource Capital Corp [Member], USD $)	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2012 RREF CDO 2006-1 Senior Notes [Member]	Sep. 30, 2012 RREF CDO 2006-1 Senior Notes [Member]	Dec. 31, 2012 CMBS - Term Repurchase Facilities [Member]	Sep. 30, 2012 CMBS - Term Repurchase Facilities [Member]	Dec. 31, 2012 CRE - Term Repurchase Facility [Member]	Sep. 30, 2012 CRE - Term Repurchase Facility [Member]	Dec. 31, 2012 Mortgages [Member]	Sep. 30, 2012 Mortgages [Member]	Aug. 01, 2011 Mortgages [Member]	Dec. 31, 2012 Whitney CLO I Senior Notes [Member]	Oct. 31, 2012 Whitney CLO I, Ltd. [Member]	Dec. 31, 2012 Apidos CLO VIII Senior Notes [Member]	Sep. 30, 2012 Apidos CLO VIII Senior Notes [Member]	Dec. 31, 2012 Apidos Cinco CDO Senior Notes [Member]	Sep. 30, 2012 Apidos Cinco CDO Senior Notes [Member]	Dec. 31, 2012 Apidos CDO III Senior Notes [Member]	Sep. 30, 2012 Apidos CDO III Senior Notes [Member]	Dec. 31, 2012 Apidos CDO I Senior Notes [Member]	Sep. 30, 2012 Apidos CDO I Senior Notes [Member]	Dec. 31, 2012 RREF CDO 2007-1 Senior Notes [Member]	Sep. 30, 2012 RREF CDO 2007-1 Senior Notes [Member]
Debt Instrument [Line Items]
Principal outstanding			$ 146,400,000	$ 146,400,000	$ 47,500,000	$ 47,400,000	$ 59,100,000	$ 28,900,000	$ 13,600,000	$ 13,600,000	$ 13,600,000	$ 174,100,000		$ 317,600,000	$ 317,600,000	$ 322,000,000	$ 322,000,000	$ 222,000,000	$ 244,900,000	$ 203,200,000	$ 231,800,000	$ 227,400,000	$ 265,800,000
Unamortized debt issuance costs	0	0	728,000	835,000	23,000	91,000	348,000	479,000						4,700,000	5,100,000	1,500,000	1,600,000	659,000	834,000	274,000	439,000	1,400,000	1,800,000
Unamortized discount												2,500,000		11,900,000	12,800,000
Accrued interest expense					37,000	31,000	79,000	57,000
Purchased equity interests													$ 20,900,000
Ownership interests in variable interest entities (in hundredths)													67.00%