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Residential Whole Loans (Residential Whole Loans) (Details) $ in Thousands | Sep. 30, 2021 USD ($) loan | Dec. 31, 2020 USD ($) loan
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | $ 3,031,966 |
Allowance for Credit Losses |  | (44,102) | $ (86,833)
Total Residential Whole Loans | [1],[2] | $ 7,081,462 | $ 5,325,401
Number of loans | loan |  | 22,668 | 18,734
Carrying Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for Credit Losses |  | $ (44,102) | $ (86,833)
Total Residential Whole Loans |  | $ 2,987,864 | $ 4,108,499
Number of loans | loan |  | 10,361 | 13,112
Fair Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for Credit Losses |  | $ 0 | $ 0
Total Residential Whole Loans |  | $ 4,093,598 | $ 1,216,902
Number of loans | loan |  | 12,307 | 5,622
Performing |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | $ 5,409,497 | $ 3,521,624
Performing | Carrying Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 2,456,736 | 3,521,624
Performing | Fair Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 2,952,761 | 0
Nonperforming |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 1,140,837 | 1,216,902
Nonperforming | Carrying Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 0 | 0
Nonperforming | Fair Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 1,140,837 | 1,216,902
Non-QM loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 1,683,025 |
Non-QM loans | Performing |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 2,835,572 | 2,357,185
Non-QM loans | Performing | Carrying Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 1,683,025 | 2,357,185
Non-QM loans | Performing | Fair Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 1,152,547 | 0
Rehabilitation loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 294,622 |
Rehabilitation loans | Performing |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 596,224 | 581,801
Rehabilitation loans | Performing | Carrying Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 294,622 | 581,801
Rehabilitation loans | Performing | Fair Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 301,602 | 0
Single-family rental loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 368,927 |
Single-family rental loans | Performing |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 741,062 | 446,374
Single-family rental loans | Performing | Carrying Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 368,927 | 446,374
Single-family rental loans | Performing | Fair Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 372,135 | 0
Seasoned performing loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 110,162 |
Seasoned performing loans | Performing |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 110,162 | 136,264
Seasoned performing loans | Performing | Carrying Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 110,162 | 136,264
Seasoned performing loans | Performing | Fair Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 0 | 0
Agency eligible investor loans | Performing |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 1,126,477 | 0
Agency eligible investor loans | Performing | Carrying Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 0 | 0
Agency eligible investor loans | Performing | Fair Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 1,126,477 | 0
Purchased credit deteriorated loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 575,230 | 673,708
Purchased credit deteriorated loans | Carrying Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | 575,230 | 673,708
Purchased credit deteriorated loans | Fair Value |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans |  | $ 0 | $ 0
[1] | Includes approximately $2.3 billion and $1.8 billion of Residential whole loans transferred to consolidated variable interest entities (“VIEs”) at September 30, 2021 and December 31, 2020, 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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