Annual report pursuant to Section 13 and 15(d)

REAL ESTATE AND OTHER SECURITIES - Summary of the Geographic Distribution of the Collateral Securing Non-Agency RMBS (Details)

v3.20.4
REAL ESTATE AND OTHER SECURITIES - Summary of the Geographic Distribution of the Collateral Securing Non-Agency RMBS (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Non-Agency    
Debt Securities, Available-for-sale [Line Items]    
Outstanding Face Amount $ 19,365,008 $ 24,747,959
Percentage of Total Outstanding 100.00% 100.00%
Non-Agency | Western U.S.    
Debt Securities, Available-for-sale [Line Items]    
Outstanding Face Amount $ 6,543,524 $ 9,048,847
Percentage of Total Outstanding 33.70% 36.60%
Non-Agency | Southeastern U.S.    
Debt Securities, Available-for-sale [Line Items]    
Outstanding Face Amount $ 5,089,592 $ 5,983,966
Percentage of Total Outstanding 26.30% 24.20%
Non-Agency | Northeastern U.S.    
Debt Securities, Available-for-sale [Line Items]    
Outstanding Face Amount $ 4,484,340 $ 5,416,137
Percentage of Total Outstanding 23.20% 21.90%
Non-Agency | Midwestern U.S.    
Debt Securities, Available-for-sale [Line Items]    
Outstanding Face Amount $ 2,207,783 $ 2,562,269
Percentage of Total Outstanding 11.40% 10.40%
Non-Agency | Southwestern U.S.    
Debt Securities, Available-for-sale [Line Items]    
Outstanding Face Amount $ 1,025,637 $ 1,440,467
Percentage of Total Outstanding 5.30% 5.80%
Non-Agency | Other U.S.    
Debt Securities, Available-for-sale [Line Items]    
Outstanding Face Amount $ 14,132 $ 296,273
Percentage of Total Outstanding 0.10% 1.10%
Consumer loan bonds | Bonds    
Debt Securities, Available-for-sale [Line Items]    
Face Amount $ 13,000 $ 25,000
Corporate bond | Bonds    
Debt Securities, Available-for-sale [Line Items]    
Face Amount $ 500 $ 85,000