VARIABLE INTEREST ENTITIES BORROWINGS (Short-Term Repurchase Agreements) (Details) RSO (USD $)	12 Months Ended
	Dec. 31, 2012 Security	Dec. 31, 2011
RSO [Member]
Debt Instrument [Line Items]
Number of CMBS bonds securing repurchase agreement	2
Amount at Risk Under Facility [Abstract]
Weighted Average Maturity in Days	12 years 6 months	15 years 2 months
Deutsche Bank Securities, Inc [Member] | RCC Real Estate [Member] | Short-Term Repurchase Agreements [Member]
Debt Instrument [Line Items]
Debt instrument term	12 months
Principal outstanding	$ 3,100,000
CMBS bonds held as collateral, fair value	5,100,000	0
Description of variable rate basis	one-month LIBOR
Basis spread on variable rate	1.25%
Debt instrument, weighted average interest rate	1.46%
Amount at Risk Under Facility [Abstract]
Amount at Risk	2,069,000
Weighted Average Maturity in Days	7 days
Weighted Average Interest Rate	1.46%
Wells Fargo Securities, LLC [Member] | RCC Real Estate [Member] | Short-Term Repurchase Agreements [Member]
Debt Instrument [Line Items]
Principal outstanding	5,400,000	0
CMBS bonds held as collateral, fair value	8,500,000
Description of variable rate basis	one-month LIBOR
Basis spread on variable rate	1.25%
Debt instrument, weighted average interest rate	1.46%
Amount at Risk Under Facility [Abstract]
Amount at Risk	1,956,000
Weighted Average Maturity in Days	28 days
Weighted Average Interest Rate	1.46%
Linked repurchase agreement borrowings included as derivative instruments	3,500,000
JP Morgan Securities, LLC [Member] | RCC Real Estate [Member] | Short-Term Repurchase Agreements [Member]
Debt Instrument [Line Items]
Principal outstanding	4,700,000
CMBS bonds held as collateral, fair value	7,200,000
Description of variable rate basis	one-month LIBOR
Basis spread on variable rate	0.80%
Debt instrument, weighted average interest rate	1.01%
Amount at Risk Under Facility [Abstract]
Amount at Risk	2,544,000
Weighted Average Maturity in Days	11 days
Weighted Average Interest Rate	1.01%
Linked repurchase agreement borrowings included as derivative instruments	$ 4,700,000