Unconsolidated Entities - Summary of Strategic Capital Revenues Recognized in Consolidated Statements of Income Related to Co-Investment Ventures (Detail) - Unconsolidated Co-Investment Ventures [Member] - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule Of Equity Method Investments [Line Items]
Recurring fees		$ 318,423	$ 266,615	$ 230,746
Transactional fees		65,804	57,334	55,816
Promote revenue	[1]	239,268	165,635	116,290
Total strategic capital revenues from unconsolidated co-investment ventures	[2]	$ 623,495	$ 489,584	$ 402,852

[1] Includes promote revenue earned primarily from our unconsolidated co-investment venture in the U.S. in 2020, Europe in 2019 and China and Europe in 2018.

[2] These amounts exclude strategic capital revenues from other ventures.