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Schedule of Mortgage-Backed Securities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Mortgage-Backed Securities [Line Items]    
Mortgage-backed securities, at fair value(1) [1] $ 893,301 $ 1,311,361
Residential Mortgage Backed Securities [Member]    
Mortgage-Backed Securities [Line Items]    
Current Principal 943,185 1,246,084
Unamortized Premium (Discount) 8,058 44,493
Amortized Cost 966,744 1,306,244
Gross Unrealized Gain on Securities 4,625 17,526
Gross Unrealized Losses on Securities (78,068) (12,409)
Mortgage-backed securities, at fair value(1) $ 893,301 $ 1,311,361
Weighted Average Coupon 2.26% 2.48%
Weighted Average Yield 3.49% 2.33%
Weighted Average Life (Years) 7 years 11 months 26 days 5 years 2 months 15 days
Non-Agency RMBS [Member]    
Mortgage-Backed Securities [Line Items]    
Current Principal $ 16,895 $ 10,672
Unamortized Premium (Discount) (4,481) (3,438)
Amortized Cost 18,703 9,918
Gross Unrealized Gain on Securities 2,728 1,936
Gross Unrealized Losses on Securities (727) 0
Mortgage-backed securities, at fair value(1) $ 20,704 $ 11,854
Weighted Average Coupon 0.36% 0.30%
Weighted Average Yield 10.45% 7.69%
Weighted Average Life (Years) 8 years 1 month 13 days 6 years 9 months 25 days
15-year fixed rate mortgages [Member] | Agency RMBS [Member]    
Mortgage-Backed Securities [Line Items]    
Current Principal $ 47,453 $ 125,033
Unamortized Premium (Discount) 1,446 5,066
Amortized Cost 48,899 130,099
Gross Unrealized Gain on Securities 0 1,488
Gross Unrealized Losses on Securities (3,575) (877)
Mortgage-backed securities, at fair value(1) $ 45,324 $ 130,710
Weighted Average Coupon 3.23% 2.78%
Weighted Average Yield 2.31% 1.69%
Weighted Average Life (Years) 3 years 8 months 15 days 4 years 2 months 4 days
20-year fixed rate mortgages [Member] | Agency RMBS [Member]    
Mortgage-Backed Securities [Line Items]    
Current Principal $ 10,812 $ 35,732
Unamortized Premium (Discount) 696 1,479
Amortized Cost 11,508 37,211
Gross Unrealized Gain on Securities 0 34
Gross Unrealized Losses on Securities (1,817) (898)
Mortgage-backed securities, at fair value(1) $ 9,691 $ 36,347
Weighted Average Coupon 2.84% 2.31%
Weighted Average Yield 1.77% 1.50%
Weighted Average Life (Years) 6 years 8 months 19 days 5 years 11 months 15 days
30-year fixed rate mortgages [Member] | Agency RMBS [Member]    
Mortgage-Backed Securities [Line Items]    
Current Principal $ 841,823 $ 1,027,843
Unamortized Premium (Discount) 7,345 38,504
Amortized Cost 849,168 1,066,347
Gross Unrealized Gain on Securities 1,316 13,672
Gross Unrealized Losses on Securities (68,730) (7,115)
Mortgage-backed securities, at fair value(1) $ 781,754 $ 1,072,904
Weighted Average Coupon 3.65% 3.03%
Weighted Average Yield 3.38% 2.37%
Weighted Average Life (Years) 8 years 4 months 17 days 4 years 11 months 19 days
Adjustable Rate Mortgages | Agency RMBS [Member]    
Mortgage-Backed Securities [Line Items]    
Current Principal $ 8,696 $ 11,491
Unamortized Premium (Discount) 899 543
Amortized Cost 9,595 12,034
Gross Unrealized Gain on Securities 0 59
Gross Unrealized Losses on Securities (932) (133)
Mortgage-backed securities, at fair value(1) $ 8,663 $ 11,960
Weighted Average Coupon 3.58% 2.82%
Weighted Average Yield 2.37% 2.21%
Weighted Average Life (Years) 4 years 6 months 4 years 2 months 23 days
Reverse mortgages [Member] | Agency RMBS [Member]    
Mortgage-Backed Securities [Line Items]    
Current Principal $ 17,506 $ 35,313
Unamortized Premium (Discount) 2,153 2,339
Amortized Cost 19,659 37,652
Gross Unrealized Gain on Securities 0 242
Gross Unrealized Losses on Securities (1,807) (597)
Mortgage-backed securities, at fair value(1) $ 17,852 $ 37,297
Weighted Average Coupon 4.06% 3.33%
Weighted Average Yield 2.73% 2.27%
Weighted Average Life (Years) 4 years 8 months 12 days 4 years 2 months 26 days
Interest-Only [Member] | Agency RMBS [Member]    
Mortgage-Backed Securities [Line Items]    
Amortized Cost $ 9,212 $ 12,983
Gross Unrealized Gain on Securities 581 95
Gross Unrealized Losses on Securities (480) (2,789)
Mortgage-backed securities, at fair value(1) $ 9,313 $ 10,289
Weighted Average Coupon 3.89% 3.36%
Weighted Average Yield 10.56% 5.34%
Weighted Average Life (Years) 6 years 7 months 17 days 3 years 10 months 13 days
Interest-Only [Member] | Non-Agency RMBS [Member]    
Mortgage-Backed Securities [Line Items]    
Amortized Cost $ 6,289 $ 2,684
Gross Unrealized Gain on Securities 1,849 114
Gross Unrealized Losses on Securities 0 0
Mortgage-backed securities, at fair value(1) $ 8,138 $ 2,798
Weighted Average Coupon 0.24% 0.27%
Weighted Average Yield 17.94% 11.58%
Weighted Average Life (Years) 9 years 6 months 29 days 6 years 9 months 14 days
Agency Securities [Member] | Agency RMBS [Member]    
Mortgage-Backed Securities [Line Items]    
Current Principal $ 926,290 $ 1,235,412
Unamortized Premium (Discount) 12,539 47,931
Amortized Cost 948,041 1,296,326
Gross Unrealized Gain on Securities 1,897 15,590
Gross Unrealized Losses on Securities (77,341) (12,409)
Mortgage-backed securities, at fair value(1) $ 872,597 $ 1,299,507
Weighted Average Coupon 3.65% 3.02%
Weighted Average Yield 3.35% 2.31%
Weighted Average Life (Years) 7 years 11 months 26 days 4 years 9 months 21 days
Principal and interest securities | Non-Agency RMBS [Member]    
Mortgage-Backed Securities [Line Items]    
Current Principal $ 16,895 $ 10,672
Unamortized Premium (Discount) (4,481) (3,438)
Amortized Cost 12,414 7,234
Gross Unrealized Gain on Securities 879 1,822
Gross Unrealized Losses on Securities (727) 0
Mortgage-backed securities, at fair value(1) $ 12,566 $ 9,056
Weighted Average Coupon 5.26% 1.47%
Weighted Average Yield 6.65% 6.25%
Weighted Average Life (Years) 7 years 2 months 4 days 7 years 5 months 26 days
[1] Includes assets pledged as collateral to counterparties. See Note 6 for additional details on the Company's borrowings and related collateral.