Unconsolidated Affiliates and Noncontrolling Interests - Narrative (Details)	1 Months Ended	3 Months Ended
Feb. 29, 2020 USD ($)	Mar. 31, 2020 entity
Schedule Of Equity Method Investments [Line Items]
Number of entities - equity method of accounting (entity)		28
Number of 50/50 joint ventures		17
Atlanta Outlet JV, LLC
Schedule Of Equity Method Investments [Line Items]
Ownership interest in joint venture (as a percent)	50.00%
Balance of non-recourse debt \| $	$ 4,680,000
Partnership guarantee (as a percent)	100.00%
Debt instrument, maturity date	Nov. 30, 2023
Atlanta Outlet JV, LLC \| LIBOR
Schedule Of Equity Method Investments [Line Items]
Basis spread on variable rate (as a percent)	2.50%
Minimum
Schedule Of Equity Method Investments [Line Items]
Ownership interest in joint venture (as a percent)		20.00%
Ownership in variable interest entity (as a percent)		50.00%
Maximum
Schedule Of Equity Method Investments [Line Items]
Ownership interest in joint venture (as a percent)		65.00%
Ownership in variable interest entity (as a percent)		92.00%

Debt Instrument, Percentage Guaranteed

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The total number of entities accounted for using the equity method of Accounting.

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Face (par) amount of debt instrument at time of issuance.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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