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Investments in Equity Affiliates (Tables) | 12 Months Ended
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Dec. 31, 2021
Investments in Equity Affiliates |
Summary of the company's investments in equity affiliates | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | UPB of Loans to
​ | ​ | Investments in Equity Affiliates at | ​ | Equity Affiliates at
Equity Affiliates |  | December 31, 2021 |  | December 31, 2020 |  | December 31, 2021
Arbor Residential Investor LLC | ​ | $ | 65,756 | ​ | $ | 59,150 | ​ | $ | —
AMAC Holdings III LLC | ​ | ​ | 13,772 | ​ | ​ | 10,308 | ​ | ​ | —
Fifth Wall Ventures III | ​ | ​ | 5,409 | ​ | ​ | — | ​ | ​ | —
North Vermont Avenue | ​ | ​ | 2,419 | ​ | ​ | 2,496 | ​ | ​ | —
Lightstone Value Plus REIT L.P. | ​ | ​ | 1,895 | ​ | ​ | 1,895 | ​ | ​ | —
JT Prime | ​ |  | 425 | ​ |  | 425 | ​ |  | —
West Shore Café | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,687
Lexford Portfolio | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
East River Portfolio | ​ |  | — | ​ |  | — | ​ |  | —
Total | ​ | $ | 89,676 | ​ | $ | 74,274 | ​ | $ | 1,687

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- Definition Tabular disclosure of investments in and advances to affiliates. Does not include the tabular disclosure of the disaggregation of investments in and advances to affiliates across legal entities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14) -URI http://asc.fasb.org/extlink&oid=122147990&loc=d3e611322-123010 + Details
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