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Unconsolidated Entities - Summary of Operating Information and Financial Position of Unconsolidated Co-investment Ventures (Parenthetical) (Detail) - USD ($) $ in Millions | Mar. 31, 2021 | Dec. 31, 2020
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Equity Method Investments And Joint Ventures [Abstract] |  |
Receivables from unconsolidated co-investment ventures | $ 143.7 | $ 165.6

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