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Residential Whole Loans - Allowance for Credit Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2024 | Dec. 31, 2023
Unfunded Loan Commitment |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Ending balance | $ 0 |  | $ 44 |  | $ 0 |
Commitment to lend, unfunded | 1,700 |  | 6,000 |  | 1,700 |
Residential whole loan |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning balance | 19,612 | $ 20,451 | 33,062 | $ 35,314 | 20,451 |
Current provision/(reversal) | (1,079) | (460) | 265 | 315 |  |
Write-offs | (5,262) | (379) | (2,292) | (2,567) |  |
Ending balance | 13,271 | 19,612 | 31,035 | 33,062 | 13,271 |
Residential whole loan | Business purpose loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Loans | 4,017,444 |  |  |  | 4,017,444 | $ 3,996,292
Residential whole loan | Business purpose loans | Single-family transitional loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning balance | 1,699 | 2,588 | 3,626 | 5,223 | 2,588 |
Current provision/(reversal) | (317) | (473) | 999 | 406 |  |
Write-offs | (81) | (416) | (1,785) | (2,003) |  |
Ending balance | 1,301 | 1,699 | 2,840 | 3,626 | 1,301 |
Residential whole loan | Business purpose loans | Single-family transitional loans | Collateral Dependent Methodology |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Loans | 20,400 |  | 35,200 |  | 20,400 |
Residential whole loan | Business purpose loans | Single-family rental loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning balance | 4,642 | 4,355 | 1,340 | 1,277 | 4,355 |
Current provision/(reversal) | 978 | 228 | (103) | 514 |  |
Write-offs | (5,011) |  | 0 | (451) |  |
Write-offs |  | 59 |  |  |  |
Ending balance | 609 | 4,642 | 1,237 | 1,340 | 609 |
Loans | 1,643,690 |  |  |  | 1,643,690 | 1,634,796
Residential whole loan | Non-QM loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning balance | 1,681 | 1,870 | 7,145 | 7,359 | 1,870 |
Current provision/(reversal) | (326) | (189) | (233) | (214) |  |
Write-offs | 0 | 0 | (206) | 0 |  |
Ending balance | 1,355 | 1,681 | 6,706 | 7,145 | 1,355 |
Loans | 3,995,591 |  |  |  | 3,995,591 | 3,805,577
Residential whole loan | Legacy RPL/NPL loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning balance | 11,590 | 11,638 | 20,951 | 21,455 | 11,638 |
Current provision/(reversal) | (1,414) | (26) | (398) | (391) |  |
Write-offs | (170) | (22) | (301) | (113) |  |
Ending balance | 10,006 | $ 11,590 | 20,252 | $ 20,951 | 10,006 |
Loans | 1,133,056 |  |  |  | 1,133,056 | $ 1,204,095
Residential whole loan | Legacy RPL/NPL loans | Collateral Dependent Methodology |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Loans | $ 44,400 |  | $ 55,500 |  | $ 44,400 |

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- Definition Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, Net Of Recovery + References No definition available. + Details
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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 Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -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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