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Mortgage Notes Payable - Footnotes (Details) - USD ($) $ in Thousands												6 Months Ended
	May 24, 2024	Mar. 19, 2024	Jan. 25, 2024	Nov. 16, 2023	Oct. 06, 2023	Jul. 09, 2023	Jun. 05, 2023	Jan. 20, 2023	Jan. 03, 2023	Dec. 09, 2022	May 06, 2022	Jun. 30, 2024	Jun. 30, 2023	May 14, 2024	Apr. 21, 2024	Dec. 31, 2023
Mortgage loans payable on real estate
Debt, fair value												$ 41,367				$ 0
Unamortized deferred finance costs												22,641				21,148
Payments to acquire interest in joint venture												30,013	$ 37,238
Mortgage notes payable												4,373,234				4,136,136
Arrowhead Towne Center
Mortgage loans payable on real estate
Debt, fair value												31,903				0
Ownership percentage at completion of acquisition (as a percent)														100.00%
South Plains Mall
Mortgage loans payable on real estate
Debt, fair value												$ 9,464				$ 0
Chandler Fashion Center
Mortgage loans payable on real estate
Interest in the loan assumed by a third party (as a percent)												49.90%
Freehold Raceway Mall
Mortgage loans payable on real estate
Ownership percentage (as a percent)				49.90%
Ownership percentage at completion of acquisition (as a percent)				100.00%
Interest in the loan assumed by a third party (as a percent)												49.90%
Payments to acquire interest in joint venture				$ 5,600
Danbury Fair Mall
Mortgage loans payable on real estate
Debt issued			$ 155,000
Interest rate on debt (as a percent)			6.39%
Fashion District Philadelphia
Mortgage loans payable on real estate
Repayments of debt								$ 26,107
Extension term (in years)								1 year
Mortgage notes payable															$ 8,171
Fashion District Philadelphia \| SOFR
Mortgage loans payable on real estate
Interest rate on debt (as a percent)								3.60%
Fashion Outlets at Niagara Falls USA
Mortgage loans payable on real estate
Extension term (in years)		3 years
Variable interest rate spread (as a percent)					5.90%
Green Acres Mall And Commons
Mortgage loans payable on real estate
Interest rate on debt (as a percent)									5.90%
Repayments of debt									$ 370
Extension term (in years)									5 years
Oaks, The
Mortgage loans payable on real estate
Interest rate on debt (as a percent)											5.25%
Repayments of debt							$ 10,000				$ 5,000
Extension term (in years)	2 years										2 years
Oaks, The \| Period One
Mortgage loans payable on real estate
Interest rate on debt (as a percent)	7.50%
Oaks, The \| Period Two
Mortgage loans payable on real estate
Interest rate on debt (as a percent)	8.50%
Santa Monica Place
Mortgage loans payable on real estate
Extension term (in years)										3 years
Santa Monica Place \| SOFR
Mortgage loans payable on real estate
Variable interest rate spread (as a percent)						1.52%
Interest rate cap (as a percent)										4.00%
Santa Monica Place \| LIBOR
Mortgage loans payable on real estate
Variable interest rate spread (as a percent)						1.48%
Interest rate cap (as a percent)										4.00%