Unconsolidated Entities - Summary of Investments in and Advances to our Unconsolidated Entities (Detail) - USD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Schedule Of Equity Method Investments [Line Items]
Total unconsolidated entities		$ 7,602,014	$ 6,237,371
Unconsolidated Co-Investment Ventures [Member]
Schedule Of Equity Method Investments [Line Items]
Total unconsolidated entities		6,685,567	5,873,784
Other Ventures [Member]
Schedule Of Equity Method Investments [Line Items]
Total unconsolidated entities	[1]	$ 916,447	$ 363,587

[1] In 2020, we completed the Liberty Transaction and acquired an equity method investment in eight ventures.