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Residential Whole Loans - Residential Whole Loans, at Carrying Value Additional Information (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2022 | Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average LTV Ratio | 80.00% |
Settled Whole Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Purchased Performing Loans | $ 6,793,604 | $ 6,315,738
Unpaid Principal Balance (“UPB”) | $ 7,119,313 | $ 6,189,012
Weighted Average Coupon | 5.11% | 5.05%
Weighted Average Term to Maturity (Months) | 296 months | 307 months
Settled Whole Loans | Non-QM loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Purchased Performing Loans | $ 3,487,780 | $ 3,453,242
Unpaid Principal Balance (“UPB”) | $ 3,636,992 | $ 3,361,164
Weighted Average Coupon | 4.96% | 5.07%
Weighted Average Term to Maturity (Months) | 356 months | 355 months
Weighted Average LTV Ratio | 65.00% | 66.00%
Weighted Average FICO Scores | 734 | 731
Settled Whole Loans | Non-QM loans | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | $ 3,465,427 | $ 3,165,964
Settled Whole Loans | Non-QM loans | 30-59 |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 76,261 | 77,581
Settled Whole Loans | Non-QM loans | 60-89 |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 17,781 | 22,864
Settled Whole Loans | Non-QM loans | 90 or more |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 77,523 | 94,755
Settled Whole Loans | Rehabilitation loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Purchased Performing Loans | 1,038,770 | 727,964
Unpaid Principal Balance (“UPB”) | $ 1,044,722 | $ 731,154
Weighted Average Coupon | 7.18% | 7.18%
Weighted Average Term to Maturity (Months) | 13 months | 11 months
Weighted Average LTV Ratio | 67.00% | 67.00%
Weighted Average FICO Scores | 743 | 735
Settled Whole Loans | Rehabilitation loans | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | $ 952,587 | $ 616,733
Settled Whole Loans | Rehabilitation loans | 30-59 |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 3,230 | 5,834
Settled Whole Loans | Rehabilitation loans | 60-89 |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 6,913 | 5,553
Settled Whole Loans | Rehabilitation loans | 90 or more |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 81,992 | 103,034
Settled Whole Loans | Single-family rental loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Purchased Performing Loans | 1,261,946 | 949,772
Unpaid Principal Balance (“UPB”) | $ 1,319,956 | $ 924,498
Weighted Average Coupon | 5.40% | 5.46%
Weighted Average Term to Maturity (Months) | 326 months | 329 months
Weighted Average LTV Ratio | 70.00% | 70.00%
Weighted Average FICO Scores | 737 | 732
Settled Whole Loans | Single-family rental loans | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | $ 1,283,285 | $ 898,166
Settled Whole Loans | Single-family rental loans | 30-59 |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 5,169 | 2,150
Settled Whole Loans | Single-family rental loans | 60-89 |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 2,009 | 695
Settled Whole Loans | Single-family rental loans | 90 or more |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 29,493 | 23,487
Settled Whole Loans | Seasoned performing loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Purchased Performing Loans | 92,863 | 101,995
Unpaid Principal Balance (“UPB”) | $ 101,811 | $ 111,710
Weighted Average Coupon | 2.82% | 2.76%
Weighted Average Term to Maturity (Months) | 156 months | 162 months
Weighted Average LTV Ratio | 31.00% | 37.00%
Weighted Average FICO Scores | 722 | 722
Settled Whole Loans | Seasoned performing loans | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | $ 93,000 | $ 102,047
Settled Whole Loans | Seasoned performing loans | 30-59 |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 807 | 938
Settled Whole Loans | Seasoned performing loans | 60-89 |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 577 | 481
Settled Whole Loans | Seasoned performing loans | 90 or more |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 7,427 | 8,244
Settled Whole Loans | Agency eligible investor loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Purchased Performing Loans | 912,245 | 1,082,765
Unpaid Principal Balance (“UPB”) | $ 1,015,832 | $ 1,060,486
Weighted Average Coupon | 3.40% | 3.40%
Weighted Average Term to Maturity (Months) | 348 months | 354 months
Weighted Average LTV Ratio | 61.00% | 62.00%
Weighted Average FICO Scores | 767 | 767
Settled Whole Loans | Agency eligible investor loans | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | $ 1,011,769 | $ 1,039,257
Settled Whole Loans | Agency eligible investor loans | 30-59 |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 2,653 | 21,229
Settled Whole Loans | Agency eligible investor loans | 60-89 |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 596 | 0
Settled Whole Loans | Agency eligible investor loans | 90 or more |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 814 | 0
Settled Whole Loans | Purchased Credit Deteriorated Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Purchased Performing Loans | 474,919 | 524,992
Unpaid Principal Balance (“UPB”) | $ 587,058 | $ 643,187
Weighted Average Coupon | 4.57% | 4.55%
Weighted Average Term to Maturity (Months) | 280 months | 283 months
Weighted Average LTV Ratio | 65.00% | 69.00%
Settled Whole Loans | Purchased Credit Deteriorated Loans | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | $ 425,803 | $ 456,924
Settled Whole Loans | Purchased Credit Deteriorated Loans | 30-59 |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 40,047 | 50,048
Settled Whole Loans | Purchased Credit Deteriorated Loans | 60-89 |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 17,416 | 18,736
Settled Whole Loans | Purchased Credit Deteriorated Loans | 90 or more |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 103,792 | 117,479
Settled Whole Loans | Purchased Non-Performing Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Purchased Performing Loans | 922,058 | 1,072,270
Unpaid Principal Balance (“UPB”) | $ 969,007 | $ 1,073,544
Weighted Average Coupon | 4.92% | 4.87%
Weighted Average Term to Maturity (Months) | 280 months | 283 months
Weighted Average LTV Ratio | 70.00% | 73.00%
Settled Whole Loans | Purchased Non-Performing Loans | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | $ 460,929 | $ 492,481
Settled Whole Loans | Purchased Non-Performing Loans | 30-59 |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 83,631 | 87,041
Settled Whole Loans | Purchased Non-Performing Loans | 60-89 |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 34,546 | 40,876
Settled Whole Loans | Purchased Non-Performing Loans | 90 or more |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Aging by UPB | 389,901 | 453,146
Settled Whole Loans | Residential whole loans, total or weighted average |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Purchased Performing Loans | 8,190,581 | 7,913,000
Unpaid Principal Balance (“UPB”) | $ 8,675,378 | $ 7,905,743
Weighted Average Coupon | 5.06% | 4.99%
Weighted Average Term to Maturity (Months) | 293 months | 301 months
Settled Whole Loans | Certain rehabilitation loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average LTV Ratio | 72.00% | 71.00%

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