Quarterly report pursuant to Section 13 or 15(d)

INVESTMENTS IN RESIDENTIAL MORTGAGE LOANS - Carrying Value of Mortgage Loans (Details)

v3.10.0.1
INVESTMENTS IN RESIDENTIAL MORTGAGE LOANS - Carrying Value of Mortgage Loans (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward]    
Accretion of loan discount and premium amortization, net $ 528,981 $ 811,922
Transfer of loans to real estate owned (83,844)  
PCD Loans    
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward]    
Balance, beginning 183,540  
Purchases/additional fundings 29,785  
Sales 0  
Proceeds from repayments (30,261)  
Accretion of loan discount and premium amortization, net 18,282  
Provision for loan losses 0  
Transfer of loans to real estate owned (20,215)  
Transfer of loans to held-for-sale (25,111)  
Balance, ending 156,020  
Residential Portfolio Segment | Performing Loans    
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward]    
Balance, beginning 507,615  
Shellpoint acquisition 125,350  
Purchases/additional fundings 55,993  
Proceeds from repayments (77,646)  
Accretion of loan discount and premium amortization, net 12,964  
Provision for loan losses (604)  
Transfer of loans to other assets 0  
Transfer of loans to real estate owned (2,768)  
Transfer of loans to held-for-sale (1,248)  
Fair value adjustment 647  
Balance, ending $ 620,303