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Unconsolidated Affiliates - Joint Ventures (Details) - USD ($)	1 Months Ended					2 Months Ended	10 Months Ended	12 Months Ended
	May 31, 2023	Jun. 30, 2022	May 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2021	Oct. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Feb. 28, 2023	Aug. 31, 2022
Schedule Of Equity Method Investments [Line Items]
Loan agreement term		5 years
Gain on deconsolidation						$ 19,126,000	$ 55,131,000	$ 47,879,000	$ 36,250,000
Secured loan							395,000,000
Proceeds after factoring in its share of outstanding debt						7,103,000
Debt instrument, term		5 years
Debt instrument, maturity date	Jun. 07, 2027
Gain on sales of real estate assets						(3,000)	12,187,000	$ 5,125,000	$ 5,345,000
Interest rate percentage	7.3975%							7.3975%			4.25%
Nonrecourse
Schedule Of Equity Method Investments [Line Items]
Loan agreement term			3 years
Debt instrument, term			3 years
Interest rate percentage			5.85%
Asheville Mall and Park Plaza
Schedule Of Equity Method Investments [Line Items]
Long-lived assets							0
Gain on deconsolidation							$ 55,131,000
Springs at Port Orange
Schedule Of Equity Method Investments [Line Items]
Secured loan				$ 44,400,000		44,400,000				$ 44,400,000
EastGate Mall CMBS, LLC
Schedule Of Equity Method Investments [Line Items]
Long-lived assets				0		$ 0				$ 0
Gain on deconsolidation				19,126,000
EastGate Storage, LLC, Hamilton Place Self Storage, LLC, Parkdale Self Storage, LLC and Self-Storage at Mid Rivers, LLC
Schedule Of Equity Method Investments [Line Items]
Gross proceeds				42,000,000
Pay off total outstanding debt secured by property				25,855,000
Amount received after the proceeds used to pay off outstanding debt				$ 7,637,000
Ambassador Infrastructure, LLC
Schedule Of Equity Method Investments [Line Items]
Loan agreement term										4 years
Line of credit fixed interest rate				3.00%		3.00%				3.00%
Debtors emerged from bankruptcy date										Nov. 01, 2021
Debt instrument, term										4 years
Ambassador Town Center J.V., LLC
Schedule Of Equity Method Investments [Line Items]
Fair value carrying amount		$ 42,492,000
Debt instrument, maturity date		Jun. 30, 2029
Interest rate percentage		4.35%
Asheville Mall CMBS, LLC
Schedule Of Equity Method Investments [Line Items]
Fair value carrying amount												$ 62,121,000
Port Orange I, LLC
Schedule Of Equity Method Investments [Line Items]
Loan maturity date					Feb. 28, 2026
Loan agreement term					4 years
Debtors emerged from bankruptcy date					Nov. 01, 2021
Loan term of extension option					1 year
Debt instrument, term					4 years
Ownership interest in joint venture (as a percent)								50.00%
West Melbourne I, LLC
Schedule Of Equity Method Investments [Line Items]
Loan agreement term					4 years
Debtors emerged from bankruptcy date					Nov. 01, 2021
Loan term of extension option					1 year
Debt instrument, term					4 years