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Investments in Unconsolidated Joint Ventures - Narrative (Details) $ in Thousands							3 Months Ended				9 Months Ended
	May 18, 2023 USD ($) property	Apr. 25, 2023 USD ($)	Mar. 03, 2023 USD ($)	Nov. 14, 2022 USD ($)	Aug. 02, 2022 USD ($) property	Feb. 02, 2022 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	May 09, 2023 USD ($)	Aug. 01, 2022 property	May 17, 2018 property
Schedule of Equity Method Investments
Impairment loss							$ 152,798			$ 5,148	$ 153,464	$ 15,006
Sears Deptford Mall And Vintage Faire Mall
Schedule of Equity Method Investments
Purchase price					$ 24,544
Ownership percentage at completion of acquisition (as a percent)					100.00%
Number of properties (property) | property					2
Chandler Fashion Center, Danbury Fair Mall, Freehold Raceway Mall, Los Cerritos Center and Washington Square
Schedule of Equity Method Investments
Ownership percentage at completion of acquisition (as a percent)	100.00%
Joint Venture | Sears South Plains
Schedule of Equity Method Investments
Impairment loss					$ 27,054
Joint Venture | Chandler Fashion Center, Danbury Fair Mall, Freehold Raceway Mall, Los Cerritos Center and Washington Square
Schedule of Equity Method Investments
Purchase price	$ 46,687
Impairment loss									$ 50,197
Ownership percentage at completion of acquisition (as a percent)	100.00%
Loss on acquisition of real estate								$ 1,166
Number of properties (property) | property	5
Joint Venture | Third Party | Sears Deptford Mall And Vintage Faire Mall
Schedule of Equity Method Investments
Ownership percentage (as a percent)					50.00%
Joint Venture | Third Party | Chandler Fashion Center, Danbury Fair Mall, Freehold Raceway Mall, Los Cerritos Center and Washington Square
Schedule of Equity Method Investments
Ownership percentage (as a percent)	50.00%
FlatIron Crossing | Joint Venture
Schedule of Equity Method Investments
Repayments of debt						$ 197,011
Debt issued						$ 175,000
FlatIron Crossing | Joint Venture | SOFR
Schedule of Equity Method Investments
Variable interest rate spread (as a percent)						3.70%
Interest rate cap (as a percent)						4.00%
Washington Square
Schedule of Equity Method Investments
Repayments of debt				$ 9,000
Washington Square | Joint Venture
Schedule of Equity Method Investments
Repayments of debt				$ 15,000
Extension term (in years)				4 years
Washington Square | Joint Venture | SOFR
Schedule of Equity Method Investments
Variable interest rate spread (as a percent)				4.00%
Scottsdale Fashion Square | Joint Venture
Schedule of Equity Method Investments
Repayments of debt			$ 403,931
Debt issued			$ 700,000
Interest rate on debt (as a percent)			6.21%
Deptford Mall
Schedule of Equity Method Investments
Repayments of debt		$ 5,100
Deptford Mall | Joint Venture
Schedule of Equity Method Investments
Repayments of debt		$ 10,000
Debt instrument term (in years)		3 years
Deptford Mall | Joint Venture | SOFR
Schedule of Equity Method Investments
Interest rate on debt (as a percent)		3.73%
Country Club Plaza
Schedule of Equity Method Investments
Debt instrument, default amount													$ 147,605
Country Club Plaza | Joint Venture
Schedule of Equity Method Investments
Impairment loss							$ 107,673				$ 107,673
Debt instrument, default amount													$ 295,210
Chandler Fashion Center, Danbury Fair Mall, Freehold Raceway Mall, Los Cerritos Center and Washington Square | Joint Venture | Seritage
Schedule of Equity Method Investments
Number of properties (property) | property															5
Sears Deptford Mall And Vintage Faire Mall | Joint Venture | Seritage
Schedule of Equity Method Investments
Number of properties (property) | property														2

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