VARIABLE INTEREST ENTITIES FINANCING RECEIVABLES (Impaired Loans) (Details) RSO (RSO [Member], USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Net Balance	$ 175,140,000	$ 204,005,000
Unpaid Principal Balance	175,140,000	203,958,000
Specific Allowance	(1,400,000)	(7,193,000)
Average Investment in Impaired Loans	172,692,000	186,315,000
Interest Income Recognized	14,753,000	11,676,000
Whole Loans [Member]
Financing Receivable, Impaired [Line Items]
Loans without a specific valuation allowance, Recorded balance	127,888,000	130,759,000
Loans with a specific valuation allowance, Recorded balance	0	25,572,000
Net Balance	127,888,000	156,331,000
Loans without a specific valuation allowance, Unpaid Principal Balance	127,888,000	130,759,000
Loans with a specific valuation allowance, Unpaid Principal Balance	0	25,572,000
Unpaid Principal Balance	127,888,000	156,331,000
Specific Allowance	0	(4,572,000)
Loans without a specific valuation allowance, Average Investment in Impaired Loans	126,591,000	123,495,000
Loans with specific valuation allowance, Average Investment in Impaired Loans	0	24,748,000
Average Investment in Impaired Loans	126,591,000	148,243,000
Loans without a specific valuation allowance, Interest Income Recognized	11,882,000	8,439,000
Loans with a specific valuation allowance, Interest Income Recognized	0	1,622,000
Interest Income Recognized	11,882,000	10,061,000
B Notes [Member]
Financing Receivable, Impaired [Line Items]
Loans without a specific valuation allowance, Recorded balance	0	0
Loans with a specific valuation allowance, Recorded balance	0	0
Net Balance	0	0
Loans without a specific valuation allowance, Unpaid Principal Balance	0	0
Loans with a specific valuation allowance, Unpaid Principal Balance	0	0
Unpaid Principal Balance	0	0
Specific Allowance	0	0
Loans without a specific valuation allowance, Average Investment in Impaired Loans	0	0
Loans with specific valuation allowance, Average Investment in Impaired Loans	0	0
Average Investment in Impaired Loans	0	0
Loans without a specific valuation allowance, Interest Income Recognized	0	0
Loans with a specific valuation allowance, Interest Income Recognized	0	0
Interest Income Recognized	0	0
Mezzanine Loans [Member]
Financing Receivable, Impaired [Line Items]
Loans without a specific valuation allowance, Recorded balance	38,072,000	38,072,000
Loans with a specific valuation allowance, Recorded balance	0	0
Net Balance	38,072,000	38,072,000
Loans without a specific valuation allowance, Unpaid Principal Balance	38,072,000	38,072,000
Loans with a specific valuation allowance, Unpaid Principal Balance	0	0
Unpaid Principal Balance	38,072,000	38,072,000
Specific Allowance	0	0
Loans without a specific valuation allowance, Average Investment in Impaired Loans	38,072,000	38,072,000
Loans with specific valuation allowance, Average Investment in Impaired Loans	0	0
Average Investment in Impaired Loans	38,072,000	38,072,000
Loans without a specific valuation allowance, Interest Income Recognized	2,543,000	1,615,000
Loans with a specific valuation allowance, Interest Income Recognized	0	0
Interest Income Recognized	2,543,000	1,615,000
Bank Loans [Member]
Financing Receivable, Impaired [Line Items]
Loans without a specific valuation allowance, Recorded balance	86,000	0
Loans with a specific valuation allowance, Recorded balance	2,340,000	3,554,000
Net Balance	2,426,000	3,554,000
Loans without a specific valuation allowance, Unpaid Principal Balance	86,000	0
Loans with a specific valuation allowance, Unpaid Principal Balance	2,340,000	3,554,000
Unpaid Principal Balance	2,426,000	3,554,000
Specific Allowance	(464,000)	(2,621,000)
Loans without a specific valuation allowance, Average Investment in Impaired Loans	86,000	0
Loans with specific valuation allowance, Average Investment in Impaired Loans	287,000	0
Average Investment in Impaired Loans	373,000	0
Loans without a specific valuation allowance, Interest Income Recognized	0	0
Loans with a specific valuation allowance, Interest Income Recognized	0	0
Interest Income Recognized	0	0
Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Loans without a specific valuation allowance, Recorded balance	2,825,000	315,000
Loans with a specific valuation allowance, Recorded balance	0	0
Net Balance	2,825,000	315,000
Loans without a specific valuation allowance, Unpaid Principal Balance	2,825,000	268,000
Loans with a specific valuation allowance, Unpaid Principal Balance	0	0
Unpaid Principal Balance	2,825,000	268,000
Specific Allowance	0	0
Loans without a specific valuation allowance, Average Investment in Impaired Loans	2,825,000	0
Loans with specific valuation allowance, Average Investment in Impaired Loans	0	0
Average Investment in Impaired Loans	2,825,000	0
Loans without a specific valuation allowance, Interest Income Recognized	107,000	0
Loans with a specific valuation allowance, Interest Income Recognized	0	0
Interest Income Recognized	107,000	0
Loans Receivable - Related Party [Member]
Financing Receivable, Impaired [Line Items]
Loans without a specific valuation allowance, Recorded balance	0	5,733,000
Loans with a specific valuation allowance, Recorded balance	3,929,000	0
Net Balance	3,929,000	5,733,000
Loans without a specific valuation allowance, Unpaid Principal Balance	0	5,733,000
Loans with a specific valuation allowance, Unpaid Principal Balance	3,929,000	0
Unpaid Principal Balance	3,929,000	5,733,000
Specific Allowance	(936,000)	0
Loans without a specific valuation allowance, Average Investment in Impaired Loans	0	0
Loans with specific valuation allowance, Average Investment in Impaired Loans	4,831,000	0
Average Investment in Impaired Loans	4,831,000	0
Loans without a specific valuation allowance, Interest Income Recognized	0	0
Loans with a specific valuation allowance, Interest Income Recognized	221,000	0
Interest Income Recognized	$ 221,000	$ 0