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Residential Whole Loans - Residential Whole Loans, Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2025 | Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Asset Amount | [1],[2] | $ 8,813,834 | $ 8,813,834 | $ 8,811,224
LTV ratio (as a percent) |  |  | 80.00% |
Single-family transitional loans | As is value of collateral |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 324,000 | $ 324,000 | 445,600
Multifamily transitional loans | As is value of collateral |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 143,500 | 143,500 | 252,100
Residential whole loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Asset Amount |  | 8,813,834 | 8,813,834 | 8,811,224
Fair Value |  | 8,822,525 | 8,822,525 | 8,795,953
Unpaid Principal Balance (“UPB”) |  | $ 9,018,124 | $ 9,018,124 | $ 9,194,832
Weighted Average Coupon ( as a percent) |  | 7.02% | 7.02% | 7.06%
LTV ratio (as a percent) |  |  | 64.00% | 64.00%
60+ Days Past Due % |  | 6.80% | 6.80% | 7.50%
Residential whole loans | Current |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | $ 8,045,946 | $ 8,045,946 | $ 8,183,381
Residential whole loans | 30-59 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 355,997 | 355,997 | 324,331
Residential whole loans | 60-89 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 118,143 | 118,143 | 117,102
Residential whole loans | 90 or more |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 498,038 | 498,038 | 570,018
Residential whole loans | Non-QM loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Asset Amount |  | 5,120,744 | 5,120,744 | 4,288,961
Fair Value |  | 5,105,895 | 5,105,895 | 4,258,298
Unpaid Principal Balance (“UPB”) |  | $ 5,120,904 | $ 5,120,904 | $ 4,408,660
Weighted Average Coupon ( as a percent) |  | 6.72% | 6.72% | 6.50%
Weighted Average Term to Maturity (Months) |  |  | 338 months | 339 months
LTV ratio (as a percent) |  |  | 64.00% | 64.00%
Weighted Average Original FICO |  |  | 738 | 735
60+ Days Past Due % |  | 4.10% | 4.10% | 3.80%
Gross coupon rate (as a percent) |  | 6.86% |  | 6.65%
Residential whole loans | Non-QM loans | Current |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | $ 4,780,553 | $ 4,780,553 | $ 4,114,436
Residential whole loans | Non-QM loans | 30-59 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 130,895 | 130,895 | 124,765
Residential whole loans | Non-QM loans | 60-89 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 47,995 | 47,995 | 50,619
Residential whole loans | Non-QM loans | 90 or more |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 161,461 | 161,461 | 118,840
Residential whole loans | Business purpose loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Asset Amount |  | 2,640,929 | 2,640,929 | 3,394,426
Fair Value |  | 2,644,053 | 2,644,053 | 3,394,591
Unpaid Principal Balance (“UPB”) |  | $ 2,707,998 | $ 2,707,998 | $ 3,500,300
Weighted Average Coupon ( as a percent) |  | 8.38% | 8.38% | 8.43%
Weighted Average Term to Maturity (Months) |  |  |  |
LTV ratio (as a percent) |  |  | 67.00% | 67.00%
Weighted Average Original FICO |  |  |  |
60+ Days Past Due % |  | 7.00% | 7.00% | 7.30%
Residential whole loans | Business purpose loans | Current |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | $ 2,409,983 | $ 2,409,983 | $ 3,174,103
Residential whole loans | Business purpose loans | 30-59 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 107,873 | 107,873 | 69,869
Residential whole loans | Business purpose loans | 60-89 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 28,559 | 28,559 | 21,409
Residential whole loans | Business purpose loans | 90 or more |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 161,583 | 161,583 | 234,919
Residential whole loans | Business purpose loans | Single-family rental loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Asset Amount |  | 1,245,766 | 1,245,766 | 1,356,034
Fair Value |  | 1,248,466 | 1,248,466 | 1,355,965
Unpaid Principal Balance (“UPB”) |  | $ 1,267,818 | $ 1,267,818 | $ 1,416,705
Weighted Average Coupon ( as a percent) |  | 6.33% | 6.33% | 6.36%
Weighted Average Term to Maturity (Months) |  |  | 313 months | 321 months
LTV ratio (as a percent) |  |  | 67.00% | 68.00%
Weighted Average Original FICO |  |  | 740 | 739
60+ Days Past Due % |  | 3.20% | 3.20% | 3.90%
Gross coupon rate (as a percent) |  | 6.36% |  | 6.39%
Residential whole loans | Business purpose loans | Single-family rental loans | Current |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | $ 1,208,637 | $ 1,208,637 | $ 1,346,312
Residential whole loans | Business purpose loans | Single-family rental loans | 30-59 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 18,900 | 18,900 | 15,661
Residential whole loans | Business purpose loans | Single-family rental loans | 60-89 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 4,056 | 4,056 | 5,445
Residential whole loans | Business purpose loans | Single-family rental loans | 90 or more |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 36,225 | 36,225 | 49,287
Residential whole loans | Business purpose loans | Single-family transitional loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Asset Amount |  | 791,019 | 791,019 | 1,099,466
Fair Value |  | 791,443 | 791,443 | 1,099,700
Unpaid Principal Balance (“UPB”) |  | $ 804,252 | $ 804,252 | $ 1,106,631
Weighted Average Coupon ( as a percent) |  | 10.39% | 10.39% | 10.44%
Weighted Average Term to Maturity (Months) |  |  | 6 months | 5 months
LTV ratio (as a percent) |  |  | 69.00% | 67.00%
Weighted Average Original FICO |  |  | 749 | 750
60+ Days Past Due % |  | 12.80% | 12.80% | 10.50%
Gross coupon rate (as a percent) |  | 10.40% |  | 10.45%
Residential whole loans | Business purpose loans | Single-family transitional loans | Current |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | $ 667,779 | $ 667,779 | $ 957,266
Residential whole loans | Business purpose loans | Single-family transitional loans | 30-59 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 33,374 | 33,374 | 33,393
Residential whole loans | Business purpose loans | Single-family transitional loans | 60-89 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 18,293 | 18,293 | 15,964
Residential whole loans | Business purpose loans | Single-family transitional loans | 90 or more |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 84,806 | 84,806 | 100,008
Residential whole loans | Business purpose loans | Multifamily transitional loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Asset Amount |  | 604,144 | 604,144 | 938,926
Fair Value |  | 604,144 | 604,144 | 938,926
Unpaid Principal Balance (“UPB”) |  | $ 635,928 | $ 635,928 | $ 976,964
Weighted Average Coupon ( as a percent) |  | 9.94% | 9.94% | 9.17%
Weighted Average Term to Maturity (Months) |  |  | 3 months | 6 months
LTV ratio (as a percent) |  |  | 64.00% | 64.00%
Weighted Average Original FICO |  |  | 752 | 751
60+ Days Past Due % |  | 7.40% | 7.40% | 8.80%
Gross coupon rate (as a percent) |  | 9.95% |  | 9.18%
Residential whole loans | Business purpose loans | Multifamily transitional loans | Current |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | $ 533,567 | $ 533,567 | $ 870,525
Residential whole loans | Business purpose loans | Multifamily transitional loans | 30-59 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 55,599 | 55,599 | 20,815
Residential whole loans | Business purpose loans | Multifamily transitional loans | 60-89 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 6,210 | 6,210 | 0
Residential whole loans | Business purpose loans | Multifamily transitional loans | 90 or more |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 40,552 | 40,552 | 85,624
Residential whole loans | Legacy RPL/NPL loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Asset Amount |  | 1,000,224 | 1,000,224 | 1,075,764
Fair Value |  | 1,020,640 | 1,020,640 | 1,090,991
Unpaid Principal Balance (“UPB”) |  | $ 1,128,259 | $ 1,128,259 | $ 1,222,258
Weighted Average Coupon ( as a percent) |  | 5.10% | 5.10% | 5.15%
Weighted Average Term to Maturity (Months) |  |  | 246 months | 253 months
LTV ratio (as a percent) |  |  | 54.00% | 55.00%
Weighted Average Original FICO |  |  | 647 | 647
60+ Days Past Due % |  | 19.20% | 19.20% | 21.40%
Gross coupon rate (as a percent) |  | 5.11% |  | 5.16%
Residential whole loans | Legacy RPL/NPL loans | Current |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | $ 794,824 | $ 794,824 | $ 831,844
Residential whole loans | Legacy RPL/NPL loans | 30-59 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 116,852 | 116,852 | 129,081
Residential whole loans | Legacy RPL/NPL loans | 60-89 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 41,589 | 41,589 | 45,074
Residential whole loans | Legacy RPL/NPL loans | 90 or more |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 174,994 | 174,994 | 216,259
Residential whole loans | Other loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Asset Amount |  | 51,937 | 51,937 | 52,073
Fair Value |  | 51,937 | 51,937 | 52,073
Unpaid Principal Balance (“UPB”) |  | $ 60,963 | $ 60,963 | $ 63,614
Weighted Average Coupon ( as a percent) |  | 3.43% | 3.43% | 3.44%
Weighted Average Term to Maturity (Months) |  |  | 311 months | 320 months
LTV ratio (as a percent) |  |  | 63.00% | 65.00%
Weighted Average Original FICO |  |  | 757 | 758
60+ Days Past Due % |  | 0.00% | 0.00% | 0.00%
Residential whole loans | Other loans | Current |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | $ 60,586 | $ 60,586 | $ 62,998
Residential whole loans | Other loans | 30-59 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 377 | 377 | 616
Residential whole loans | Other loans | 60-89 |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | 0 | 0 | 0
Residential whole loans | Other loans | 90 or more |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Unpaid Principal Balance (“UPB”) |  | $ 0 | $ 0 | $ 0
[1] | Includes approximately $7.6 billion and $6.9 billion of Residential whole loans transferred to consolidated variable interest entities (“VIEs”) at September 30, 2025 and December 31, 2024, respectively. Such assets can be used only to settle the obligations of each respective VIE.
[2] | See Note 6 for information regarding the Company’s pledged assets.

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