Investments in and Advances to Unconsolidated Affiliates - Schedule of Investments (Details) - USD ($) $ in Thousands		Dec. 31, 2024	Oct. 25, 2024	Sep. 25, 2024	May 16, 2024	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Due (to) from Related Parties		$ 2,523				$ 1,775
Other	[1]	4,540				4,554
Investments in and advances to unconsolidated affiliates		209,232				197,240
Distributions in excess of income from, and investments in, unconsolidated affiliates		16,514				7,982
Related Party
Schedule of Equity Method Investments [Line Items]
Due (to) from Related Parties		$ 446				396
Fund IV
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		23.12%
Fund V
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		20.10%		90.00%
Shops at Grand - Queens, NY
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage					95.00%
Walk at Highwoods Preserve
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage			80.00%
Core Portfolio
Schedule of Equity Method Investments [Line Items]
Equity method investments		$ 110,184				101,227
Core Portfolio | Renaissance Portfolio
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		20.00%
Equity method investments		$ 28,250				30,745
Core Portfolio | Gotham Plaza
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		49.00%
Equity method investments		$ 30,561				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]	$ 4,214				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]	$ 19,048				19,719
Core Portfolio | 840 N. Michigan
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	[4]	91.85%
Equity method investments	[4]	$ 28,111				15,761
Core Portfolio | Crossroads
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	[5]	49.00%
Distributions in excess of income from, and investments in, unconsolidated affiliates	[5]	$ 16,514				7,982
Investment Management | Fund IV Other Portfolio
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	[6]	90.00%
Equity method investments	[6]	$ 5,291				5,221
Investment Management | 650 Bald Hill Road
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	[6]	90.00%
Equity method investments	[6]	$ 9,220				9,486
Investment Management | Paramus Plaza
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	[6]	50.00%
Equity method investments	[6]	$ 0				70
Investment Management | Fund IV
Schedule of Equity Method Investments [Line Items]
Equity method investments	[6]	$ 14,511				14,777
Investment Management | Fund V Family Center at Riverdale
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	[4],[6]	89.42%
Equity method investments	[4],[6]	$ 1,832				2,552
Investment Management | Tri City Plaza
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	[6]	90.00%
Equity method investments	[6]	$ 6,914				6,452
Investment Management | Frederick County Acquisitions
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	[6],[7]	90.00%
Equity method investments	[6],[7]	$ 4,375				11,345
Investment Management | Wood Ridge Plaza
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	[6]	90.00%
Equity method investments	[6]	$ 9,313				10,313
Investment Management | La Frontera Village
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	[6]	90.00%
Equity method investments	[6]	$ 13,389				17,483
Investment Management | Shoppes at South Hills
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	[6]	90.00%
Equity method investments	[6]	$ 10,139				11,707
Investment Management | Mohawk Commons
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	[6]	90.00%
Equity method investments	[6]	$ 12,350				16,434
Investment Management | Fund V
Schedule of Equity Method Investments [Line Items]
Equity method investments	[6]	$ 58,312				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		$ 2,452				0
Investment Management | Walk at Highwoods Preserve
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		20.00%
Equity method investments		$ 2,279				0
Investment Management | LINQ Promenade
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		15.00%
Equity method investments		$ 16,508				0
Investment Management | Other
Schedule of Equity Method Investments [Line Items]
Equity method investments		$ 21,239				$ 0

[1] Includes cost-method investment in Fifth Wall. As of December 31, 2024, the Company recorded an impairment charge of $0.4 million.

[2] Represents a variable interest entity (“VIE”) for which the Company is not the primary beneficiary (Note 16).

[3] 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.

[4] Represents a tenancy-in-common interest. In December 2023, the Company acquired an additional 3.42% interest in the North Michigan Avenue venture, increasing its ownership from 88.43% to 91.85% and provided a loan to the remaining venture partners. The note receivable bears interest at 6.50% had an outstanding balance of $2.3 million and $1.4 million as of December 31, 2024 and 2023, respectively (Note 3).

[5] Distributions have exceeded the Company’s investment; however, the Company recognizes a liability balance as it may elect to contribute capital to the entity.

[6] The Company owns 23.12% and 20.10% in Funds IV and V, respectively (Note 1). For the ventures within these Funds, the ownership interest percentage represents the Fund’s ownership interest and not the Company’s proportionate share.

[7] 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.