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Unconsolidated Affiliates and Noncontrolling Interests - Noncontrolling Interests (Details) - USD ($) | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Schedule Of Equity Method Investments [Line Items] |  |
Noncontrolling interests | $ 29,257,000 | $ 55,553,000
Operating Partnership |  |
Schedule Of Equity Method Investments [Line Items] |  |
Noncontrolling interests | 5,566,000 | 31,592,000
Other consolidated subsidiaries |  |
Schedule Of Equity Method Investments [Line Items] |  |
Noncontrolling interests | $ 23,691,000 | $ 23,961,000

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