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Amount, after accumulated amortization, of debt discount.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group.

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Mortgage Notes Payable - Footnotes (Details) - USD ($)														9 Months Ended
Mortgage Notes Payable - Footnotes (Details) - USD ($)	Oct. 28, 2024	Aug. 22, 2024	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	Sep. 30, 2024	Sep. 30, 2023	May 14, 2024	Apr. 21, 2024	Dec. 31, 2023
Mortgage loans payable on real estate
Debt, fair value														$ 37,529,000				$ 0
Unamortized deferred finance costs														21,782,000				21,148,000
Payments to acquire interest in joint venture														37,008,000	$ 55,578,000
Mortgage notes payable														4,342,216,000				4,136,136,000
Arrowhead Towne Center
Mortgage loans payable on real estate
Debt, fair value														29,727,000				0
Ownership percentage at completion of acquisition (as a percent)																100.00%
South Plains Mall
Mortgage loans payable on real estate
Debt, fair value														$ 7,802,000				$ 0
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%
Payments to acquire interest in joint venture						$ 5,600,000
Danbury Fair Mall
Mortgage loans payable on real estate
Debt issued		$ 85,000			$ 155,000,000
Interest rate on debt (as a percent)		6.72%			6.39%
Fashion District Philadelphia
Mortgage loans payable on real estate
Repayments of debt										$ 26,107,000
Extension term (in years)										1 year
Mortgage notes payable																	$ 8,171,000
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%
Extension term (in years)											5 years
Face amount on debt											$ 370,000,000
Oaks, The
Mortgage loans payable on real estate
Interest rate on debt (as a percent)													5.25%
Repayments of debt									$ 10,000,000				$ 5,000,000
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%
Queens Center \| Subsequent Event
Mortgage loans payable on real estate
Interest rate on debt (as a percent)	5.37%
Face amount on debt	$ 525,000,000
Debt instrument term (in years)	5 years
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%