Quarterly report pursuant to Section 13 or 15(d)

REAL ESTATE SECURITIES (Real Estate Securities Holdings) (Details)

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REAL ESTATE SECURITIES (Real Estate Securities Holdings) (Details)
 9 Months Ended
Sep. 30, 2016
USD ($)
contract
security
Dec. 31, 2015
USD ($)
Schedule of Available-for-sale Securities [Line Items]    
Carrying Value $ 3,430,000 $ 59,034,000
Total outstanding face amount of fixed rate securities 640,700,000  
Total outstanding face amount of floating rate securities 14,300,000  
Other | Unlevered real estate securities    
Schedule of Available-for-sale Securities [Line Items]    
Outstanding Face Amount $ 12,464,000  
Number of Securities (in contracts/securities) | security 11  
Excluded from face amount of unlevered real estate securities $ 154,000,000  
Total Securities, Pledged as Collateral    
Schedule of Available-for-sale Securities [Line Items]    
Outstanding Face Amount 632,206,000  
Before Impairment - Amortized Cost Basis 663,456,000  
Other-Than-Temporary Impairment - Amortized Cost Basis 0  
After Impairment - Amortized Cost Basis 663,456,000  
Gross Unrealized Gains 103,000  
Gross Unrealized Losses 0  
Carrying Value $ 663,559,000  
Number of Securities (in contracts/securities) | contract 10  
Real Estate Securities Available For Sale    
Schedule of Available-for-sale Securities [Line Items]    
Before Impairment - Amortized Cost Basis $ 20,224,000  
Other-Than-Temporary Impairment - Amortized Cost Basis (19,476,000)  
After Impairment - Amortized Cost Basis 748,000  
Gross Unrealized Gains 2,682,000  
Gross Unrealized Losses 0  
Carrying Value $ 3,430,000  
Number of Securities (in contracts/securities) | contract 5  
CMBS    
Schedule of Available-for-sale Securities [Line Items]    
Outstanding Face Amount $ 10,308,000  
Before Impairment - Amortized Cost Basis 10,308,000  
Other-Than-Temporary Impairment - Amortized Cost Basis (10,308,000)  
After Impairment - Amortized Cost Basis 0  
Gross Unrealized Gains 0  
Gross Unrealized Losses 0  
Carrying Value $ 0  
Number of Securities (in contracts/securities) | contract 2  
Weighted Average Rating C  
Weighted Average Coupon 2.53%  
Weighted Average Yield 0.00%  
Weighted Average Life 1 day  
Weighted Average Principal Subordination 0.00%  
ABS - Non-Agency RMBS    
Schedule of Available-for-sale Securities [Line Items]    
Outstanding Face Amount $ 4,000,000  
Before Impairment - Amortized Cost Basis 2,269,000  
Other-Than-Temporary Impairment - Amortized Cost Basis (1,521,000)  
After Impairment - Amortized Cost Basis 748,000  
Gross Unrealized Gains 2,682,000  
Gross Unrealized Losses 0  
Carrying Value $ 3,430,000  
Number of Securities (in contracts/securities) | contract 1  
Weighted Average Rating C  
Weighted Average Coupon 0.92%  
Weighted Average Yield 24.61%  
Weighted Average Life 5 years 4 months  
Weighted Average Principal Subordination 26.50%  
ABS - Small Business Loans    
Schedule of Available-for-sale Securities [Line Items]    
Outstanding Face Amount $ 8,464,000  
Before Impairment - Amortized Cost Basis 7,647,000  
Other-Than-Temporary Impairment - Amortized Cost Basis (7,647,000)  
After Impairment - Amortized Cost Basis 0  
Gross Unrealized Gains 0  
Gross Unrealized Losses 0  
Carrying Value $ 0  
Number of Securities (in contracts/securities) | contract 1  
Weighted Average Rating C  
Weighted Average Coupon 6.69%  
Weighted Average Yield 0.00%  
Weighted Average Life 1 day  
Weighted Average Principal Subordination 0.00%  
Debt securities    
Schedule of Available-for-sale Securities [Line Items]    
Outstanding Face Amount $ 22,772,000  
Before Impairment - Amortized Cost Basis 20,224,000  
Other-Than-Temporary Impairment - Amortized Cost Basis (19,476,000)  
After Impairment - Amortized Cost Basis 748,000  
Gross Unrealized Gains 2,682,000  
Gross Unrealized Losses 0  
Carrying Value $ 3,430,000  
Number of Securities (in contracts/securities) | contract 4  
Weighted Average Rating C  
Weighted Average Coupon 3.79%  
Weighted Average Yield 24.61%  
Weighted Average Life 10 months 15 days  
Equity Securities    
Schedule of Available-for-sale Securities [Line Items]    
Before Impairment - Amortized Cost Basis $ 0  
Other-Than-Temporary Impairment - Amortized Cost Basis 0  
After Impairment - Amortized Cost Basis 0  
Gross Unrealized Gains 0  
Gross Unrealized Losses 0  
Carrying Value $ 0  
Number of Securities (in contracts/securities) | contract 1  
FNMA/FHLMC    
Schedule of Available-for-sale Securities [Line Items]    
Outstanding Face Amount $ 632,206,000  
Before Impairment - Amortized Cost Basis 663,456,000  
Other-Than-Temporary Impairment - Amortized Cost Basis 0  
After Impairment - Amortized Cost Basis 663,456,000  
Gross Unrealized Gains 103,000  
Gross Unrealized Losses 0  
Carrying Value $ 663,559,000  
Number of Securities (in contracts/securities) | contract 10  
Weighted Average Rating AAA  
Weighted Average Coupon 3.26%  
Weighted Average Yield 2.87%  
Weighted Average Life 6 years 4 months  
Non-consolidated CDO Securities    
Schedule of Available-for-sale Securities [Line Items]    
Outstanding Face Amount $ 0