Investments in and Advances to Unconsolidated Affiliates - Schedule of Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Due from (to) Related Parties	$ 210	$ 305
Other	4,367	4,315
Investments in and advances to unconsolidated affiliates	191,925	291,156
Distributions in excess of income from, and investments in, unconsolidated affiliates	$ 8,588	10,505
KLA/ABS
Schedule of Equity Method Investments [Line Items]
Cost method investment, ownership percentage	36.70%
Cost Method Investment	$ 0	85,403
Fund IV Other Portfolio
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	98.57%
Equity method investments	$ 7,105	7,914
650 Bald Hill Road
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	90.00%
Equity method investments	$ 9,717	10,203
Paramus Plaza
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%
Equity method investments	$ 517	936
Fund IV
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 17,339	19,053
Fund V Family Center at Riverdale
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	89.42%
Equity method investments	$ 4,159	4,995
Tri City Plaza
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	90.00%
Equity method investments	$ 7,774	8,422
Frederick County Acquisitions
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	90.00%
Equity method investments	$ 12,496	12,240
Wood Ridge Plaza
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	90.00%
Equity method investments	$ 12,586	12,751
La Frontera Village
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	90.00%
Equity method investments	$ 19,974	20,803
Shoppes at South Hills
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	90.00%
Equity method investments	$ 12,183	44,677
Mohawk Commons
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	90.00%
Equity method investments	$ 19,788	775
Fund V
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 88,960	104,663
840 N. Michigan
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	88.43%
Distributions in excess of income from, and investments in, unconsolidated affiliates		1,673
Core Portfolio
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 81,049	77,417
Core Portfolio | Renaissance Portfolio
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	20.00%
Equity method investments	$ 28,634	28,755
Core Portfolio | Gotham Plaza
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	49.00%
Equity method investments	$ 30,545	30,112
Core Portfolio | Georgetown Portfolio
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%
Equity method investments	$ 4,172	4,048
Core Portfolio | 1238 Wisconsin Avenue
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	80.00%
Equity method investments	$ 17,630	14,502
Core Portfolio | 840 N. Michigan Avenue
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	88.00%
Equity method investments	$ 68	0
Core Portfolio | Crossroads
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	49.00%
Distributions in excess of income from, and investments in, unconsolidated affiliates	$ 8,588	$ 8,832