Percentage of interest acquired in an asset acquisition.

No definition available.

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- Definition

This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to investment property acquired in connection with a business combination for which the initial accounting was incomplete.

+ References

No definition available.

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- Definition

Amount of increase (decrease) in amortization of excess investment in unconsolidated entities that would have been recognized in previous periods if the adjustments to provisional amounts were recognized as of the acquisition date.

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No definition available.

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- Definition

Amount of increase (decrease) in depreciation and amortization expense for investment properties that would have been recognized in previous periods if the adjustments to provisional amounts were recognized as of the acquisition date.

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No definition available.

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Amount of increase (decrease) in lease income for lease intangible assets that would have been recognized in previous periods if the adjustments to provisional amounts were recognized as of the acquisition date.

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No definition available.

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- Definition

Amount of real estate investment property and lease intangible assets.

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Represents the number of luxury outlets acquired.

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Number of regional , super regional and outlet malls.

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no definition

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- Definition

Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

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- Definition

Number of shares of equity interest issued or issuable by acquirer as part of consideration transferred in business combination.

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- Definition

Percentage of voting equity interest acquired in business combination.

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Indicates line item in statement of income or comprehensive income that includes gain from remeasurement of acquisition-date fair value of equity interest in acquiree held by acquirer immediately before acquisition date in business combination achieved in stages.

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Amount of acquiree's earnings (loss) since acquisition date of business combination included in consolidated statement of income.

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Amount of acquiree's revenue since acquisition date of business combination included in consolidated statement of income.

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- Definition

Percentage of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination.

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Amount of gain from remeasurement of acquisition-date fair value of equity interest in acquiree held by acquirer immediately before acquisition date in business combination achieved in stages.

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- Definition

The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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No definition available.

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Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

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Real Estate Acquisitions and Dispositions (Details) shares in Thousands, $ in Thousands						3 Months Ended			9 Months Ended
	Nov. 17, 2025 USD ($)	Oct. 31, 2025 property shares	Jun. 27, 2025 USD ($)	Apr. 01, 2025 USD ($)	Jan. 30, 2025 USD ($) property	Sep. 30, 2026 USD ($) property	Dec. 31, 2025 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2026 USD ($) property
Acquisitions
Investment properties, at cost						$ 51,263,154	$ 50,946,067		$ 51,263,154
Simon Property Group, L.P
Acquisitions
Investment properties, at cost						$ 51,263,154	50,946,067		$ 51,263,154
TRG
Acquisitions
Ownership interest (as a percent)		88.00%
The Mall Firenze and The Mall Sanremo
Acquisitions
Asset acquisition interest acquired (as a percent)					100.00%
Number of luxury outlets acquired \| property					2
Acquisition price					$ 392,400
Cash acquired					25,300
Investment properties, at cost					$ 413,500
Brickell City Centre Property
Acquisitions
Acquisition price			$ 497,700
Cash acquired			24,000
Investment property and lease intangible assets			$ 544,600
Brickell City Centre Retail
Acquisitions
Asset acquisition interest acquired (as a percent)			75.00%
Brickell City Centre Parking
Acquisitions
Asset acquisition interest acquired (as a percent)			100.00%
Briarwood Mall
Acquisitions
Asset acquisition interest acquired (as a percent)				50.00%
Acquisition price				$ 9,200
Cash acquired				14,700
Investment properties, at cost				168,600
Phillips Place
Acquisitions
Asset acquisition interest acquired (as a percent)	100.00%
Acquisition price	$ 143,800
Investment properties, at cost	$ 133,300
Unconsolidated properties \| TRG
Acquisitions
Number of regional, super regional and outlet malls \| property						11			11
Mortgage bearing 3.29% Interest \| Briarwood Mall
Acquisitions
Fixed rate debt				$ 165,000
Fixed rate of interest				3.29%
TRG
Acquisitions
Ownership interests acquired (as a percent)		12.00%
Number of regional, super regional and outlet malls \| property		22
Business combination, step acquisition, non-cash gain							$ 2,858,000
Business Combination, Achieved in Stages, Preacquisition Equity Interest in Acquiree, Remeasurement, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration]							Acquisition Of Controlling Interest Sale Or Disposal Of Or Recovery On Assets And Interests In Unconsolidated Entities Gain Or Loss And Impairment Net
Business combination, step acquisition, Percentage		88.00%
Business combination, measurement period adjustment									$ 83,300
Business combination, total consolidated revenue						$ 189,200			564,400
Business combination, Consolidated net loss						47,400			$ 130,000
Business combination, Adjustments related to depreciation and amortization expense						49,800
Business combination, Adjustments related to lease income						1,900		$ 1,400
Business combination, Adjustments related to amortization of excess investment						$ 25,200
TRG \| Simon Property Group, L.P
Acquisitions
Number of units issued in connection with acquisition \| shares		5,060
TRG \| Consolidated properties
Acquisitions
Number of regional, super regional and outlet malls \| property		11
TRG \| Unconsolidated properties
Acquisitions
Number of regional, super regional and outlet malls \| property		11