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Residential Whole Loans - Allowance for Credit Losses (Details) - Residential whole loans - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | $ 10,665 | $ 20,451 |
Current provision/(reversal) | 145 | (460) |
Write-offs | (616) | (379) |
Ending balance | 10,194 | 19,612 |
Business purpose loans |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Loans | 3,139,060 |  | $ 3,396,181
Business purpose loans | Single-family transitional loans |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 1,389 | 2,587 |
Current provision/(reversal) | (88) | (472) |
Write-offs | (436) | (416) |
Ending balance | 865 | 1,699 |
Business purpose loans | Single-family transitional loans | Collateral Dependent Methodology |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Loans | 11,000 | 21,900 |
Business purpose loans | Single-family rental loans |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Loans | 1,312,993 |  | 1,356,400
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 366 | 4,355 |
Current provision/(reversal) | 614 | 228 |
Write-offs | 0 | 59 |
Ending balance | 980 | 4,642 |
Business purpose loans | Single-family rental loans | Collateral Dependent Methodology |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Loans |  | 10,600 |
Non-QM loans |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Loans | 4,540,553 |  | 4,291,086
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 2,125 | 1,871 |
Current provision/(reversal) | (197) | (190) |
Write-offs | 0 | 0 |
Ending balance | 1,928 | 1,681 |
Legacy RPL/NPL loans |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Loans | 1,061,802 |  | $ 1,082,549
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 6,785 | 11,638 |
Current provision/(reversal) | (184) | (26) |
Write-offs | (180) | (22) |
Ending balance | 6,421 | 11,590 |
Legacy RPL/NPL loans | Collateral Dependent Methodology |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Loans | $ 37,000 | $ 50,500 |

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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph c -Publisher SEC Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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- Definition Amount, excluding accrued interest, of decrease (increase) in allowance for credit loss on financing receivable from writeoff (recovery). Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
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