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Loans Held for Investment, net - Loan Portfolio Statistics (Details) $ in Thousands | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2023 USD ($) loan | Dec. 31, 2022 USD ($) loan | Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Receivables [Abstract] |  |  |  |
Number of loans | loan | 25 | 27 |  |
Total loan commitments | $ 674,475 | $ 727,562 |  |
Unfunded loan commitments | 45,779 | 49,007 |  |
Principal balance | 628,696 | 678,555 | $ 636,831 | $ 590,590
Carrying value | $ 617,935 | $ 669,929 |  |
Weighted average coupon rate | 8.57% | 8.07% |  |
Weighted average all in yield | 9.06% | 8.57% |  |
Weighted average floor | 0.65% | 0.62% |  |
Weighted average maximum maturity (years) | 3 years 1 month 6 days | 3 years 3 months 18 days |  |
Weighted average risk rating | 2.9 | 2.9 |  |

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- Definition Amount of contractual principal due at origination of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Paragraph Column F -Subsection 29 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column F)) -URI https://asc.fasb.org/extlink&oid=120402547&loc=d3e617274-123014 + Details
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