Quarterly report pursuant to Section 13 or 15(d)

INVESTMENTS IN RESIDENTIAL MORTGAGE LOANS - Schedule of Residential Mortgage Loans Outstanding by Loan Type, Excluding REO (Details)

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INVESTMENTS IN RESIDENTIAL MORTGAGE LOANS - Schedule of Residential Mortgage Loans Outstanding by Loan Type, Excluding REO (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2017
USD ($)
loan
Dec. 31, 2016
USD ($)
Mortgage Loans on Real Estate [Line Items]    
Weighted Average Life (Years) 1 year 3 months 18 days  
Threshold period past due (in days) 60 days  
Reverse Mortgage Loans, Held-For-Investment [Member]    
Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 0  
Carrying Value $ 0 $ 0
Loan Count | loan 0  
Weighted Average Yield 0.00%  
Weighted Average Life (Years) 0 years  
Floating Rate Loans as a % of Face Amount 0.00%  
Loan to Value Ratio (LTV) 0.00%  
Weighted Average Delinquency 0.00%  
Performing Loans [Member]    
Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 589,962  
Carrying Value $ 527,098 0
Loan Count | loan 8,294  
Weighted Average Yield 8.00%  
Weighted Average Life (Years) 5 years 5 months 30 days  
Floating Rate Loans as a % of Face Amount 18.80%  
Loan to Value Ratio (LTV) 84.30%  
Weighted Average Delinquency 8.40%  
Weighted Average FICO 652  
Performing Loans [Member] | Ginnie Mae [Member]    
Mortgage Loans on Real Estate [Line Items]    
Unpaid Principal Balance $ 37,900  
Purchased Credit Deteriorated Loans [Member]    
Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount 319,239  
Carrying Value $ 230,323 190,761
Loan Count | loan 2,572  
Weighted Average Yield 5.50%  
Weighted Average Life (Years) 3 years 3 months 8 days  
Floating Rate Loans as a % of Face Amount 14.70%  
Loan to Value Ratio (LTV) 87.20%  
Weighted Average Delinquency 86.90%  
Weighted Average FICO 597  
Residential Mortgage Loans, held-for-investment [Member]    
Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 909,201  
Carrying Value $ 757,421 190,761
Loan Count | loan 10,866  
Weighted Average Yield 7.10%  
Weighted Average Life (Years) 4 years 8 months 18 days  
Floating Rate Loans as a % of Face Amount 17.40%  
Loan to Value Ratio (LTV) 85.30%  
Weighted Average Delinquency 35.90%  
Weighted Average FICO 632  
Reverse Mortgage Loans, Held-For-Sale [Member]    
Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 20,481  
Carrying Value $ 10,709 11,468
Loan Count | loan 59  
Weighted Average Yield 6.80%  
Weighted Average Life (Years) 4 years 6 months 20 days  
Floating Rate Loans as a % of Face Amount 15.70%  
Loan to Value Ratio (LTV) 137.00%  
Weighted Average Delinquency 76.10%  
Performing Loans, held-for-sale [Member]    
Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 285,063  
Carrying Value $ 287,087 175,194
Loan Count | loan 7,475  
Weighted Average Yield 4.60%  
Weighted Average Life (Years) 4 years 5 months 12 days  
Floating Rate Loans as a % of Face Amount 8.30%  
Loan to Value Ratio (LTV) 72.80%  
Weighted Average Delinquency 9.30%  
Weighted Average FICO 617  
Non-Performing Loans, held-for-sale [Member]    
Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 928,908  
Carrying Value $ 703,676 510,003
Loan Count | loan 5,677  
Weighted Average Yield 5.50%  
Weighted Average Life (Years) 3 years 11 months 28 days  
Floating Rate Loans as a % of Face Amount 18.50%  
Loan to Value Ratio (LTV) 97.50%  
Weighted Average Delinquency 66.00%  
Weighted Average FICO 583  
Residential Mortgage Loans Held-for-Sale [Member]    
Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 1,234,452  
Carrying Value $ 1,001,472 $ 696,665
Loan Count | loan 13,211  
Weighted Average Yield 5.30%  
Weighted Average Life (Years) 4 years 1 month 9 days  
Floating Rate Loans as a % of Face Amount 16.10%  
Loan to Value Ratio (LTV) 92.50%  
Weighted Average Delinquency 53.10%  
Weighted Average FICO 591  
Reverse Mortgage Loans [Member]    
Mortgage Loans on Real Estate [Line Items]    
Interest in reverse mortgage loans 70.00%  
Unpaid principal balance $ 500  
Percentage of loans that have reached a termination event 61.00%  
Non-Performing Loans [Member] | Ginnie Mae [Member]    
Mortgage Loans on Real Estate [Line Items]    
Unpaid Principal Balance $ 76,500