Investments in and Advances to Unconsolidated Affiliates - Fund Investments - Additional Information (Details) - USD ($) $ in Thousands, shares in Millions							12 Months Ended
		Oct. 25, 2024	Sep. 25, 2024	Jun. 28, 2024	May 16, 2024	Jan. 20, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Nov. 05, 2024	Sep. 19, 2024
Schedule of Equity Method Investments [Line Items]
Long-term debt, gross	[1],[2]						$ 1,547,947	$ 1,881,087
Contingent payment							5,400	0
Equity in earnings (losses) of unconsolidated affiliates							15,178	(7,677)	$ (32,907)
Additional contingent payments								17,500
Proceeds from dividends received							500	29,100	1,800
Proceeds from the disposition of properties and other investments, net							89,078	$ 0	$ 224,558
Venture Capital Gain (Loss), Net			$ 12,900	$ 8,500
Mohawk Commons Venture
Schedule of Equity Method Investments [Line Items]
Percentage of voting interests acquired								90.00%
LINQ Promenade
Schedule of Equity Method Investments [Line Items]
Purchase Price							$ 41,600
Percentage of voting interests acquired							15.00%
Real estate investments, unconsolidated real estate and other joint ventures							$ 277,500
Mortgage loan							$ 175,000
Paramus Plaza
Schedule of Equity Method Investments [Line Items]
Proceeds from the disposition of properties and other investments, net				36,800
Repayment related to mortgage				27,900
Fund IV
Schedule of Equity Method Investments [Line Items]
Long-term debt, gross								$ 21,900
Equity method investment, ownership percentage							23.12%
Loans payable								24,100
Venture Capital Gain (Loss), Net				4,100
Share of the gain based on ownership				$ 1,000
Frederick Crossing
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage			90.00%
Proceeds from the disposition of properties and other investments, net			$ 47,200
Repayment related to mortgage			$ 23,200
Georgetown Portfolio
Schedule of Equity Method Investments [Line Items]
Long-term debt, gross								160,000
Loans payable								152,000
Debt instrument convertible carrying amount of the equity component								1,400
Crossroads
Schedule of Equity Method Investments [Line Items]
Purchase Price										$ 58,100
Mortgage loan										$ 75,000
Crossroads | SOFR
Schedule of Equity Method Investments [Line Items]
Interest rate										3.83%
Gotham Plaza
Schedule of Equity Method Investments [Line Items]
Purchase Price											$ 17,100
Mortgage loan											$ 28,000
Gotham Plaza | Base Rate
Schedule of Equity Method Investments [Line Items]
Interest rate											5.90%
Walk at Highwoods Preserve
Schedule of Equity Method Investments [Line Items]
Percentage of voting interests acquired		20.00%
Investment Owned, Fair Value		$ 6,400
Equity method investment, ownership percentage		80.00%
Sale price		$ 31,400
Mortgage loan		$ 20,500
840 N. Michigan Avenue
Schedule of Equity Method Investments [Line Items]
Long-term debt, gross							$ 2,300	1,400
Equity in earnings (losses) of unconsolidated affiliates								400
Investment owned balance principal amount								18,500
Investment Owned Balance Principal Paydown								$ 17,500
Description of maturity date								the maturity date was extended from February 2025 to December 2026.
Proceeds from sale and maturity of other investments								$ 55,000
Percentage of unpaid outstanding principal								50.00%
Equity method investment, ownership percentage								3.42%
Mortgage loan								$ 73,500
840 N. Michigan Avenue | Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Debt instrument interest rate increase decrease								6.50%
Equity method investment, ownership percentage								91.85%
840 N. Michigan Avenue | Minimum [Member]
Schedule of Equity Method Investments [Line Items]
Debt instrument interest rate increase decrease								4.40%
Equity method investment, ownership percentage								88.43%
1238 Wisconsin Avenue
Schedule of Equity Method Investments [Line Items]
Term loan								$ 5,300
Construction loan commitment								12,800
Long-term debt, gross								12,800
Fund V
Schedule of Equity Method Investments [Line Items]
Purchase Price								20,200
Long-term debt, gross								33,500
Equity method investment, ownership percentage			90.00%				20.10%
Venture Capital Gain (Loss), Net			$ 11,600
Share of the gain based on ownership			$ 2,300
Fund V | Bridge Loan
Schedule of Equity Method Investments [Line Items]
Long-term line of credit, noncurrent								31,700
Mohawk Commons
Schedule of Equity Method Investments [Line Items]
Purchase Price								62,100
Mortgage loan								39,700
Fund V Acquisition One
Schedule of Equity Method Investments [Line Items]
Mortgage loan								36,000
Mortgage loan funded at closing								$ 31,800
Albertsons
Schedule of Equity Method Investments [Line Items]
Proceeds from dividends received						$ 28,500
Investment, shares						$ 11,400
Share distributed to investor						4.1
Investment owned, shares						1.6
Shops at Grand - Queens, NY
Schedule of Equity Method Investments [Line Items]
Percentage of voting interests acquired					5.00%
Investment Owned, Fair Value					$ 2,400
Equity method investment, ownership percentage					95.00%
Sale price					$ 48,300

[1] 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 from 4.50% to 6.00%.

[2] 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%.