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Investments in and Advances to Unconsolidated Affiliates - Schedule of Investments (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Sep. 25, 2024 | May 16, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Due (to) from Related Parties |  | $ 2,748 |  |  | $ 1,775
Other | [1] | 4,368 |  |  | 4,554
Investments in and advances to unconsolidated affiliates |  | 187,363 |  |  | 197,240
Distributions in excess of income from, and investments in, unconsolidated affiliates |  | 7,797 |  |  | 7,982
Related Party |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Due (to) from Related Parties |  | 102 |  |  | 396
Fund V |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  |  | 90.00% |  |
Shops at Grand - Queens, NY |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  |  |  | 95.00% |
Core Portfolio |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investments |  | $ 108,606 |  |  | 101,227
Core Portfolio | Renaissance Portfolio |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  | 20.00% |  |  |
Equity method investments |  | $ 29,121 |  |  | 30,745
Core Portfolio | Gotham Plaza |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  | 49.00% |  |  |
Equity method investments |  | $ 30,605 |  |  | 30,772
Core Portfolio | Georgetown Portfolio |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage | [2] | 50.00% |  |  |
Equity method investments | [2] | $ 4,201 |  |  | 4,230
Core Portfolio | 1238 Wisconsin Avenue |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage | [2],[3] | 80.00% |  |  |
Equity method investments | [2],[3] | $ 19,020 |  |  | 19,719
Core Portfolio | Crossroads |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage | [4] | 49.00% |  |  |
Distributions in excess of income from, and investments in, unconsolidated affiliates | [4] | $ 7,797 |  |  | 7,982
Core Portfolio | 840 N. Michigan |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage | [5] | 91.85% |  |  |
Equity method investments | [5] | $ 25,659 |  |  | 15,761
Investment Management | Fund IV Other Portfolio |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  | 90.00% |  |  |
Equity method investments |  | $ 5,435 |  |  | 5,221
Investment Management | 650 Bald Hill Road |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  | 90.00% |  |  |
Equity method investments |  | $ 9,234 |  |  | 9,486
Investment Management | Paramus Plaza |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  | 50.00% |  |  |
Equity method investments |  | $ 0 |  |  | 70
Investment Management | Fund IV |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investments |  | $ 14,669 |  |  | 14,777
Investment Management | Fund V Family Center at Riverdale |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage | [5] | 89.42% |  |  |
Equity method investments | [5] | $ 1,163 |  |  | 2,552
Investment Management | Tri City Plaza |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  | 90.00% |  |  |
Equity method investments |  | $ 4,747 |  |  | 6,452
Investment Management | Frederick County Acquisitions |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage | [6] | 90.00% |  |  |
Equity method investments | [6] | $ 5,012 |  |  | 11,345
Investment Management | Wood Ridge Plaza |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  | 90.00% |  |  |
Equity method investments |  | $ 9,167 |  |  | 10,313
Investment Management | La Frontera Village |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  | 90.00% |  |  |
Equity method investments |  | $ 13,856 |  |  | 17,483
Investment Management | Shoppes at South Hills |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  | 90.00% |  |  |
Equity method investments |  | $ 10,355 |  |  | 11,707
Investment Management | Mohawk Commons |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  | 90.00% |  |  |
Equity method investments |  | $ 12,869 |  |  | 16,434
Investment Management | Fund V |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investments |  | $ 57,169 |  |  | 76,286
Investment Management | Shops at Grand - Queens, NY |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  | 5.00% |  |  |
Equity method investments |  | $ 2,449 |  |  | $ 0
[1] | Includes cost-method investment in Fifth Wall.
[2] | Represents a variable interest entity (“VIE”) for which the Company is not the primary beneficia ry (Note 15).
[3] | 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.
[4] | Distributions have exceeded the Company’s investment; however, the Company recognizes a liability balance as it may elect to contribute capital to the entity.
[5] | Represents a tenancy-in-common interest.
[6] | On September 25, 2024 the venture which Fund V holds a 90% interest in sold a 300,000 square foot property in Frederick County, Maryland commonly referred to as Frederick Crossing. Fund V maintains its 90% interest in the venture which retains its interest in the remaining property of the Frederick County Acquisitions portfolio, commonly referred to as Frederick County Square.

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