Quarterly report pursuant to Section 13 or 15(d)

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

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INVESTMENTS IN RESIDENTIAL MORTGAGE LOANS - Residential Mortgage Loans Outstanding by Loan Type, Excluding REO (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2019
USD ($)
loan
Dec. 31, 2018
USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Weighted Average Life (Years) 27 days  
Unpaid Principal Balance $ 21,900,000  
Threshold period past due (in days) 60 days  
Performing Loans    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 613,104  
Carrying Value $ 570,480 $ 591,264
Loan Count | loan 8,348  
Weighted Average Yield 8.00%  
Weighted Average Life (Years) 4 years 9 months 18 days  
Floating Rate Loans as a % of Face Amount 20.10%  
Loan to Value Ratio (LTV) 77.40%  
Weighted Average Delinquency 9.30%  
Weighted Average FICO 647  
Purchased Credit Deteriorated Loans    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 143,476  
Carrying Value $ 101,870 144,065
Loan Count | loan 1,297  
Weighted Average Yield 8.20%  
Weighted Average Life (Years) 3 years 3 months 18 days  
Floating Rate Loans as a % of Face Amount 18.70%  
Loan to Value Ratio (LTV) 88.10%  
Weighted Average Delinquency 62.00%  
Weighted Average FICO 595  
Residential Mortgage Loans, held-for-investment    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 756,580  
Carrying Value $ 672,350 735,329
Loan Count | loan 9,645  
Weighted Average Yield 8.00%  
Weighted Average Life (Years) 4 years 6 months  
Floating Rate Loans as a % of Face Amount 19.90%  
Loan to Value Ratio (LTV) 79.40%  
Weighted Average Delinquency 19.30%  
Weighted Average FICO 637  
Reverse Mortgage Loans    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 13,523  
Carrying Value $ 6,500 6,557
Loan Count | loan 35  
Weighted Average Yield 8.30%  
Weighted Average Life (Years) 4 years 7 months 6 days  
Floating Rate Loans as a % of Face Amount 10.90%  
Loan to Value Ratio (LTV) 145.20%  
Weighted Average Delinquency 69.00%  
Performing Loans    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 483,488  
Carrying Value $ 486,626 413,883
Loan Count | loan 8,129  
Weighted Average Yield 4.10%  
Weighted Average Life (Years) 4 years  
Floating Rate Loans as a % of Face Amount 62.30%  
Loan to Value Ratio (LTV) 57.00%  
Weighted Average Delinquency 6.80%  
Weighted Average FICO 642  
Non-Performing Loans    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 611,924  
Carrying Value $ 504,038 512,040
Loan Count | loan 5,016  
Weighted Average Yield 5.00%  
Weighted Average Life (Years) 3 years 3 months 18 days  
Floating Rate Loans as a % of Face Amount 13.30%  
Loan to Value Ratio (LTV) 81.00%  
Weighted Average Delinquency 64.50%  
Weighted Average FICO 536  
Residential Mortgage Loans, held-for-sale    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 1,108,935  
Carrying Value $ 997,164 932,480
Loan Count | loan 13,180  
Weighted Average Yield 4.70%  
Weighted Average Life (Years) 3 years 8 months 12 days  
Floating Rate Loans as a % of Face Amount 34.70%  
Loan to Value Ratio (LTV) 71.30%  
Weighted Average Delinquency 39.40%  
Weighted Average FICO 583  
Acquired Loans    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 2,483,358  
Carrying Value $ 2,375,501 2,153,269
Loan Count | loan 16,288  
Weighted Average Yield 4.40%  
Weighted Average Life (Years) 7 years 8 months 12 days  
Floating Rate Loans as a % of Face Amount 2.80%  
Loan to Value Ratio (LTV) 73.20%  
Weighted Average Delinquency 19.60%  
Weighted Average FICO 623  
Originated Loans    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 802,793  
Carrying Value $ 828,821 655,260
Loan Count | loan 3,124  
Weighted Average Yield 4.70%  
Weighted Average Life (Years) 28 years 7 months 6 days  
Floating Rate Loans as a % of Face Amount 1.30%  
Loan to Value Ratio (LTV) 82.30%  
Weighted Average Delinquency 15.70%  
Weighted Average FICO 575  
Residential Mortgage Loans Held-for-Sale, At Fair Value    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Outstanding Face Amount $ 3,286,151  
Carrying Value $ 3,204,322 $ 2,808,529
Loan Count | loan 19,412  
Weighted Average Yield 4.50%  
Weighted Average Life (Years) 12 years 9 months 18 days  
Floating Rate Loans as a % of Face Amount 2.40%  
Loan to Value Ratio (LTV) 75.40%  
Weighted Average Delinquency 18.60%  
Weighted Average FICO 611  
Reverse Mortgage Loans    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Interest in reverse mortgage loans 70.00%  
Unpaid principal balance $ 600  
Percentage of loans that have reached a termination event 59.00%  
Reverse Mortgage Loans | Nationstar    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Interest in reverse mortgage loans 30.00%  
Performing Loans | Ginnie Mae    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Unpaid Principal Balance $ 23,600  
Non-Performing Loans | Ginnie Mae    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Unpaid Principal Balance 48,800  
Non Agency Mortgage Loans    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Unpaid Principal Balance $ 120,200