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Residential Whole Loans - Additional Credit Related Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2022 | Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | $ 0 |  |  |  | $ 0 |
2021 | 69,861 |  |  |  | 69,861 |
2020 | 272,065 |  |  |  | 272,065 |
2019 | 744,102 |  |  |  | 744,102 |
2018 | 343,510 |  |  |  | 343,510 |
Prior | 633,677 |  |  |  | 633,677 |
Residential whole loans, total or weighted average | 2,063,215 |  |  |  | 2,063,215 |
Gross write-offs, 2019 |  |  |  |  | 495 |
Gross write-offs, 2018 |  |  |  |  | 105 |
Gross write-offs, prior |  |  |  |  | 284 |
Six Months Ended June 30, 2022 Gross write-offs | 360 | $ 523 | $ 400 | $ 1,217 | $ 884 |
Ratio Loan-To-Value |  |  |  |  | 80.00% |
Debt-to-Value Ratio, Less than 80 Percent |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | $ 0 |
2021 | 67,714 |  |  |  | 67,714 |
2020 | 253,692 |  |  |  | 253,692 |
2019 | 719,573 |  |  |  | 719,573 |
2018 | 332,011 |  |  |  | 332,011 |
Prior | 522,309 |  |  |  | 522,309 |
Residential whole loans, total or weighted average | 1,895,299 |  |  |  | 1,895,299 |
Debt-to-Value Ratio, 81 to 100 Percent |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | 0 |
2021 | 2,147 |  |  |  | 2,147 |
2020 | 18,373 |  |  |  | 18,373 |
2019 | 24,529 |  |  |  | 24,529 |
2018 | 11,499 |  |  |  | 11,499 |
Prior | 111,368 |  |  |  | 111,368 |
Residential whole loans, total or weighted average | 167,916 |  |  |  | 167,916 |
Non-QM loans |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | 0 |
2021 | 52,635 |  |  |  | 52,635 |
2020 | 228,966 |  |  |  | 228,966 |
2019 | 527,819 |  |  |  | 527,819 |
2018 | 272,137 |  |  |  | 272,137 |
Prior | 32,139 |  |  |  | 32,139 |
Residential whole loans, total or weighted average | 1,113,696 |  |  |  | 1,113,696 |
Gross write-offs, 2018 |  |  |  |  | 51 |
Six Months Ended June 30, 2022 Gross write-offs |  |  |  |  | 51 |
Non-QM loans | Debt-to-Value Ratio, Less than 80 Percent |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | 0 |
2021 | 50,488 |  |  |  | 50,488 |
2020 | 213,384 |  |  |  | 213,384 |
2019 | 519,616 |  |  |  | 519,616 |
2018 | 264,276 |  |  |  | 264,276 |
Prior | 30,517 |  |  |  | 30,517 |
Residential whole loans, total or weighted average | 1,078,281 |  |  |  | 1,078,281 |
Non-QM loans | Debt-to-Value Ratio, 81 to 100 Percent |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | 0 |
2021 | 2,147 |  |  |  | 2,147 |
2020 | 15,582 |  |  |  | 15,582 |
2019 | 8,203 |  |  |  | 8,203 |
2018 | 7,861 |  |  |  | 7,861 |
Prior | 1,622 |  |  |  | 1,622 |
Residential whole loans, total or weighted average | 35,415 |  |  |  | $ 35,415 |
Non-QM loans | Settled Whole Loans |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Ratio Loan-To-Value |  |  |  |  | 65.00% | 66.00%
Rehabilitation loans |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | $ 0 |
2021 | 3,061 |  |  |  | 3,061 |
2020 | 14,103 |  |  |  | 14,103 |
2019 | 71,662 |  |  |  | 71,662 |
2018 | 17,592 |  |  |  | 17,592 |
Prior | 4,746 |  |  |  | 4,746 |
Residential whole loans, total or weighted average | 111,164 |  |  |  | 111,164 |
Gross write-offs, 2019 |  |  |  |  | 296 |
Gross write-offs, 2018 |  |  |  |  | 41 |
Six Months Ended June 30, 2022 Gross write-offs |  |  |  |  | 337 |
Rehabilitation loans | Debt-to-Value Ratio, Less than 80 Percent |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | 0 |
2021 | 3,061 |  |  |  | 3,061 |
2020 | 11,823 |  |  |  | 11,823 |
2019 | 60,678 |  |  |  | 60,678 |
2018 | 14,040 |  |  |  | 14,040 |
Prior | 3,047 |  |  |  | 3,047 |
Residential whole loans, total or weighted average | 92,649 |  |  |  | 92,649 |
Rehabilitation loans | Debt-to-Value Ratio, 81 to 100 Percent |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | 0 |
2021 | 0 |  |  |  | 0 |
2020 | 2,280 |  |  |  | 2,280 |
2019 | 10,984 |  |  |  | 10,984 |
2018 | 3,552 |  |  |  | 3,552 |
Prior | 1,699 |  |  |  | 1,699 |
Residential whole loans, total or weighted average | 18,515 |  |  |  | $ 18,515 |
Rehabilitation loans | Settled Whole Loans |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Ratio Loan-To-Value |  |  |  |  | 67.00% | 67.00%
Single-family rental loans |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | $ 0 |
2021 | 14,165 |  |  |  | 14,165 |
2020 | 28,996 |  |  |  | 28,996 |
2019 | 144,621 |  |  |  | 144,621 |
2018 | 53,781 |  |  |  | 53,781 |
Prior | 5,566 |  |  |  | 5,566 |
Residential whole loans, total or weighted average | 247,129 |  |  |  | 247,129 |
Gross write-offs, 2019 |  |  |  |  | 199 |
Gross write-offs, 2018 |  |  |  |  | 13 |
Six Months Ended June 30, 2022 Gross write-offs |  |  |  |  | 212 |
Single-family rental loans | Debt-to-Value Ratio, Less than 80 Percent |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | 0 |
2021 | 14,165 |  |  |  | 14,165 |
2020 | 28,485 |  |  |  | 28,485 |
2019 | 139,279 |  |  |  | 139,279 |
2018 | 53,695 |  |  |  | 53,695 |
Prior | 5,566 |  |  |  | 5,566 |
Residential whole loans, total or weighted average | 241,190 |  |  |  | 241,190 |
Single-family rental loans | Debt-to-Value Ratio, 81 to 100 Percent |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | 0 |
2021 | 0 |  |  |  | 0 |
2020 | 511 |  |  |  | 511 |
2019 | 5,342 |  |  |  | 5,342 |
2018 | 86 |  |  |  | 86 |
Prior | 0 |  |  |  | 0 |
Residential whole loans, total or weighted average | 5,939 |  |  |  | $ 5,939 |
Single-family rental loans | Settled Whole Loans |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Ratio Loan-To-Value |  |  |  |  | 70.00% | 70.00%
Seasoned performing loans |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | $ 0 |
2021 | 0 |  |  |  | 0 |
2020 | 0 |  |  |  | 0 |
2019 | 0 |  |  |  | 0 |
2018 | 0 |  |  |  | 0 |
Prior | 92,909 |  |  |  | 92,909 |
Residential whole loans, total or weighted average | 92,909 |  |  |  | 92,909 |
Seasoned performing loans | Debt-to-Value Ratio, Less than 80 Percent |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | 0 |
2021 | 0 |  |  |  | 0 |
2020 | 0 |  |  |  | 0 |
2019 | 0 |  |  |  | 0 |
2018 | 0 |  |  |  | 0 |
Prior | 89,973 |  |  |  | 89,973 |
Residential whole loans, total or weighted average | 89,973 |  |  |  | 89,973 |
Seasoned performing loans | Debt-to-Value Ratio, 81 to 100 Percent |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | 0 |
2021 | 0 |  |  |  | 0 |
2020 | 0 |  |  |  | 0 |
2019 | 0 |  |  |  | 0 |
2018 | 0 |  |  |  | 0 |
Prior | 2,936 |  |  |  | 2,936 |
Residential whole loans, total or weighted average | 2,936 |  |  |  | $ 2,936 |
Seasoned performing loans | Settled Whole Loans |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Ratio Loan-To-Value |  |  |  |  | 31.00% | 37.00%
Purchased Credit Deteriorated Loans |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | $ 0 |
2021 | 0 |  |  |  | 0 |
2020 | 0 |  |  |  | 0 |
2019 | 0 |  |  |  | 0 |
2018 | 0 |  |  |  | 0 |
Prior | 498,317 |  |  |  | 498,317 |
Residential whole loans, total or weighted average | 498,317 |  |  |  | 498,317 | $ 547,772
Gross write-offs, prior |  |  |  |  | 284 |
Six Months Ended June 30, 2022 Gross write-offs |  |  |  |  | 284 |
Purchased Credit Deteriorated Loans | Debt-to-Value Ratio, Less than 80 Percent |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | 0 |
2021 | 0 |  |  |  | 0 |
2020 | 0 |  |  |  | 0 |
2019 | 0 |  |  |  | 0 |
2018 | 0 |  |  |  | 0 |
Prior | 393,206 |  |  |  | 393,206 |
Residential whole loans, total or weighted average | 393,206 |  |  |  | 393,206 |
Purchased Credit Deteriorated Loans | Debt-to-Value Ratio, 81 to 100 Percent |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
2022 | 0 |  |  |  | 0 |
2021 | 0 |  |  |  | 0 |
2020 | 0 |  |  |  | 0 |
2019 | 0 |  |  |  | 0 |
2018 | 0 |  |  |  | 0 |
Prior | 105,111 |  |  |  | 105,111 |
Residential whole loans, total or weighted average | 105,111 |  |  |  | 105,111 |
Certain rehabilitation loans | Settled Whole Loans |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Purchased performing loans | $ 172,300 |  |  |  | $ 172,300 | $ 137,300
Ratio Loan-To-Value |  |  |  |  | 72.00% | 71.00%

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