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Investments in and Advances to Unconsolidated Affiliates - Schedule of Investments (Parenthetical) (Details) - USD ($) $ in Thousands | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2024 | Sep. 25, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Dec. 31, 2022
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Note receivable from related party |  | $ 126,576 |  | $ 124,949 |  |
Allowance for credit losses |  | $ 1,835 |  | 1,279 | $ 988 | $ 834
1238 Wisconsin Avenue |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Debt Instrument, Description of Variable Rate Basis |  | The loan is collateralized by the venture members’ equity interest in the entity that holds the 1238 Wisconsin development property, bears interest at Prime + 1.0% subject to a 4.5% floor and matures on December 28, 2024. |  |  |  |
1238 Wisconsin Avenue | Core Portfolio |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Construction Commitment |  | $ 12,800 |  |  |  |
Note receivable from related party |  | 12,800 |  | 12,800 |  |
Allowance for credit losses |  | $ 200 |  | $ 100 |  |
Equity method investment, ownership percentage | [1],[2] | 80.00% |  |  |  |
Frederick Crossing |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity method investment, ownership percentage |  |  | 90.00% |  |  |
Fund V |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity method investment, ownership percentage |  |  | 90.00% |  |  |
[1] | Includes the amounts advanced against a $12.8 million construction commitment from the Company to the venture that holds its investm ent in 1238 Wisconsin. As of September 30, 2024 and December 31, 2023 the note receivable from a related party had a balance of $12.8 million, as of each period, net of an allowance for credit losses of $0.2 million and $0.1 million as of September 30, 2024 and December 31, 2023, respectively. The loan is collateralized by the venture members’ equity interest in the entity that holds the 1238 Wisconsin development property, bears interest at Prime + 1.0% subject to a 4.5% floor and matures on December 28, 2024.
[2] | Represents a variable interest entity (“VIE”) for which the Company is not the primary beneficia ry (Note 15).

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