VARIABLE INTEREST ENTITIES BORROWINGS (Linked Transactions) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
RSO [Member]
Debt Instrument [Line Items]
Principal outstanding	$ 1,336,026,000	$ 1,810,524,000
RSO [Member] | CMBS - Term Repurchase Facilities [Member]
Debt Instrument [Line Items]
Principal outstanding	47,613,000	47,492,000
RCC Real Estate [Member]
Debt Instrument [Line Items]
Face amount of debt issued	91,931,000	106,303,000
Debt Instrument, Fair Value Disclosure	121,622,000	145,235,000
RCC Real Estate [Member] | Wells Fargo Bank, National Association [Member] | CMBS - Term Repurchase Facilities [Member]
Debt Instrument [Line Items]
Face amount of debt issued	47,601,000	42,530,000
Debt Instrument, Fair Value Disclosure	56,949,000	51,636,000
Debt Instrument, Number of Positions as Collateral	44	33
Debt instrument, weighted average interest rate	1.38%	1.52%
RCC Real Estate [Member] | Wells Fargo Bank, National Association [Member] | CRE - Term Repurchase Facility [Member]
Debt Instrument [Line Items]
Face amount of debt issued	30,003,000	58,834,000
Debt Instrument, Fair Value Disclosure	48,186,000	85,390,000
Debt Instrument, Number of Positions as Collateral	3	8
Debt instrument, weighted average interest rate	2.67%	2.89%
Linked Transactions [Member]
Debt Instrument [Line Items]
CMBS bonds held as collateral, fair value	93,823,000	27,251,000
Principal outstanding	64,094,000	20,416,000
Linked Transactions [Member] | RCC Real Estate [Member] | Wells Fargo Bank, National Association [Member] | CMBS - Term Repurchase Facilities [Member]
Debt Instrument [Line Items]
Debt Instrument, Fair Value Disclosure	8,345,000	14,586,000
Debt Instrument, Number of Positions as Collateral	7	6
Debt instrument, weighted average interest rate	1.65%	1.40%
Linked Transactions [Member] | RCC Real Estate [Member] | Wells Fargo Bank, National Association [Member] | CRE - Term Repurchase Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Fair Value Disclosure	0	0
Debt Instrument, Number of Positions as Collateral	0	0
Debt instrument, weighted average interest rate	0.00%	0.00%
CMBS [Member] | Linked Transactions [Member] | RCC Real Estate [Member] | Wells Fargo Bank, National Association [Member] | CMBS - Term Repurchase Facilities [Member]
Debt Instrument [Line Items]
Face amount of debt issued	6,506,000	12,180,000
CMBS [Member] | Linked Transactions [Member] | RCC Real Estate [Member] | Wells Fargo Bank, National Association [Member] | CRE - Term Repurchase Facility [Member]
Debt Instrument [Line Items]
Face amount of debt issued	0	0
Repurchase Agreements [Member] | RCC Real Estate [Member] | JP Morgan Securities, LLC [Member]
Debt Instrument [Line Items]
Principal outstanding	17,020,000
Repurchase Agreements [Member] | RCC Real Estate [Member] | Wells Fargo Securities, LLC [Member]
Debt Instrument [Line Items]
Face amount of debt issued	0	1,862,000
Debt Instrument, Fair Value Disclosure	0	3,098,000
Debt Instrument, Number of Positions as Collateral	0	1
Debt instrument, weighted average interest rate	0.00%	1.46%
Repurchase Agreements [Member] | RCC Real Estate [Member] | Deutsche Bank Securities, Inc [Member]
Debt Instrument [Line Items]
Face amount of debt issued	0	3,077,000
Debt Instrument, Fair Value Disclosure	0	5,111,000
Debt Instrument, Number of Positions as Collateral	0	1
Debt instrument, weighted average interest rate	0.00%	1.46%
Repurchase Agreements [Member] | Linked Transactions [Member] | RCC Real Estate [Member] | JP Morgan Securities, LLC [Member]
Debt Instrument [Line Items]
Debt Instrument, Number of Positions as Collateral	4	1
Debt instrument, weighted average interest rate	0.99%	1.01%
CMBS bonds held as collateral, fair value	24,814,000	7,221,000
Principal outstanding	17,020,000	4,703,000
Repurchase Agreements [Member] | Linked Transactions [Member] | RCC Real Estate [Member] | Wells Fargo Securities, LLC [Member]
Debt Instrument [Line Items]
Debt Instrument, Number of Positions as Collateral	9	1
Debt instrument, weighted average interest rate	1.19%	1.46%
CMBS bonds held as collateral, fair value	30,803,000	5,444,000
Principal outstanding	21,969,000	3,533,000
Repurchase Agreements [Member] | Linked Transactions [Member] | RCC Real Estate [Member] | Deutsche Bank Securities, Inc [Member]
Debt Instrument [Line Items]
Debt Instrument, Number of Positions as Collateral	9	0
Debt instrument, weighted average interest rate	1.43%	0.00%
CMBS bonds held as collateral, fair value	29,861,000	0
Principal outstanding	$ 18,599,000	$ 0