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Investments in and Advances to Unconsolidated Affiliates - Schedule of Investments (Parenthetical) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Sep. 25, 2024
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Note receivable from related party |  | $ 126,584 | [1] | $ 124,949 |  |
Allowance for credit losses |  | 2,004 | [1] | 1,279 | $ 898 |
Interest income |  | 25,085 |  | 19,993 | $ 14,641 |
Impairment charge |  | 400 |  |  |  |
Long-term debt outstanding | [2],[3] | $ 1,547,947 |  | 1,881,087 |  |
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, 2027 (as extended). |  |  |  |
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 |  | 100 |  | 100 |  |
Interest income |  | $ 200 |  | 200 |  |
Equity method investment, ownership percentage | [4],[5] | 80.00% |  |  |  |
Fund V |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity method investment, ownership percentage |  | 20.10% |  |  |  | 90.00%
Long-term debt outstanding |  |  |  | 33,500 |  |
Fund IV |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity method investment, ownership percentage |  | 23.12% |  |  |  |
Long-term debt outstanding |  |  |  | $ 21,900 |  |
Frederick Crossing |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  |  | 90.00%
840 N. Michigan Avenue |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  | 3.42% |  |
Debt Instrument, Basis Spread on Variable Rate |  | 6.50% |  | 6.50% |  |
Long-term debt outstanding |  | $ 2,300 |  | $ 1,400 |  |
840 N. Michigan Avenue | Maximum |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  | 91.85% |  |
840 N. Michigan Avenue | Minimum |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  | 88.43% |  |
[1] | The aggregate carrying amount of notes receivable included above for Federal income tax purposes was approximately $126.2 million as of December 31, 2024.
[2] | Includes $111.2 million and $151.4 million, respectively, of variable-rate debt that is subject to interest cap agreements as of the periods presented. The effective fixed rates ranged fro m 4.50% to 6.00%.
[3] | Includes $852.0 million and $1,249.8 million, respectively, of variable-rate debt that has been fixed with interest rate swap agreements as of the periods presented. The effective fixed rates ranged from 1.98% to 4.61%.
[4] | Includes the amounts advanced against a $12.8 million construction commitment from the Company to the venture that holds its investment in 1238 Wisconsin. As of December 31, 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 $0.1 million at each of December 31, 2024 and 2023. 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, 2027 (as extended). The Company recognized Interest income of $0.2 million for each of the years ended December 31, 2024 and 2023, respectively, related to this note receivable.
[5] | Represents a variable interest entity (“VIE”) for which the Company is not the primary beneficiary (Note 16).

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