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Unconsolidated Affiliates and Noncontrolling Interests - Narrative (Details)	1 Months Ended				3 Months Ended	6 Months Ended
	May 31, 2026 USD ($)	Apr. 30, 2026 USD ($)	Apr. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	Jun. 30, 2026 USD ($) Entity	Jun. 30, 2026 USD ($) Entity	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)	Sep. 30, 2025 USD ($)	Aug. 31, 2025
Schedule of Equity Method Investments [Line Items]
Number of entities - equity method of accounting (entity) \| Entity					24	24
Number of 50/50 joint ventures \| Entity					15	15
Long-Term Debt, Percentage Bearing Fixed Interest, Amount					$ 1,842,642,000	$ 1,842,642,000		$ 1,501,918,000
Non-recourse loan amount					2,034,011,000	2,034,011,000		$ 2,170,785,000
Proceeds from sale of real estate					19,202	20,696
Gain on sales of real estate assets						15,035,000	$ 22,871,000
Gain on consolidation/deconsolidation					$ 5,925,000	$ 41,259,000	$ 0
Alamance Crossing CMBS, LLC
Schedule of Equity Method Investments [Line Items]
Fair value carrying amount				$ 41,122,000
BI Developments II, LLC
Schedule of Equity Method Investments [Line Items]
Proceeds from sale of real estate				2,400,000
Gain on sales of real estate assets				$ 1,035,000
Port Orange I, LLC
Schedule of Equity Method Investments [Line Items]
Proceeds from sale of real estate			$ 1,300,000
Gain on sales of real estate assets			$ 832,000
Southpark Mall CMBS, LLC
Schedule of Equity Method Investments [Line Items]
Ownership interest in joint venture (as a percent)					100.00%	100.00%
Unconsolidated Affiliates
Schedule of Equity Method Investments [Line Items]
Ownership interest in joint venture (as a percent)					65.00%	65.00%
Jefferson Mall
Schedule of Equity Method Investments [Line Items]
Ownership interest in joint venture (as a percent)					100.00%	100.00%
The Outlet Shoppes at Gettysburg
Schedule of Equity Method Investments [Line Items]
Ownership interest in joint venture (as a percent)					50.00%	50.00%
Minimum
Schedule of Equity Method Investments [Line Items]
Ownership in variable interest entity (as a percent)						50.00%
Minimum \| Unconsolidated Affiliates
Schedule of Equity Method Investments [Line Items]
Ownership interest in joint venture (as a percent)					33.00%	33.00%
Maximum
Schedule of Equity Method Investments [Line Items]
Ownership in variable interest entity (as a percent)						92.00%
Maximum \| Unconsolidated Affiliates
Schedule of Equity Method Investments [Line Items]
Ownership interest in joint venture (as a percent)					49.00%	49.00%
Non Recourse, Secured Term Loan [Member] \| Port Orange I, LLC
Schedule of Equity Method Investments [Line Items]
Long-Term Debt, Percentage Bearing Fixed Interest, Amount									$ 43,000,000
Loan, fixed interest rate									5.933%
Non Recourse, Secured Term Loan [Member] \| York Town Center Holding, LP
Schedule of Equity Method Investments [Line Items]
Loan, fixed interest rate										6.00%
Non Recourse, Secured Term Loan [Member] \| Coastal Grand Mall - Dick's Sporting Goods
Schedule of Equity Method Investments [Line Items]
Non-recourse loan amount		$ 6,581,000
Debt instrument, term		5 years
Loan, fixed interest rate		6.17%
Secured Debt [Member] \| West Melbourne I, LLC
Schedule of Equity Method Investments [Line Items]
Long-Term Debt, Percentage Bearing Fixed Interest, Amount	$ 78,500,000
Loan outstanding balance	43,827,000
Gain on consolidation/deconsolidation	$ 12,107,000
Secured Debt [Member] \| Jefferson Mall
Schedule of Equity Method Investments [Line Items]
Gain on consolidation/deconsolidation						$ 35,334,000
Secured Debt [Member] \| Gettysburg Outlet Center CMBS, LLC
Schedule of Equity Method Investments [Line Items]
Gain on consolidation/deconsolidation					$ 5,925,000	$ 5,925,000