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Investments in and Advances to Joint Ventures - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Schedule Of Equity Method Investments [Line Items]
Letters of credit outstanding amount	$ 203.9		$ 193.1
Unconsolidated Joint Ventures
Schedule Of Equity Method Investments [Line Items]
Net distributions from and sale proceeds for unconsolidated joint ventures	5.4	$ 6.5
Consolidated Joint Ventures
Schedule Of Equity Method Investments [Line Items]
Letters of credit outstanding amount	$ 67.4		$ 59.3

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Net distributions from and sales proceeds to equity method investment.

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