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Investments of Operating Entities and Consolidated Funds - Operating Entities - Equity Method Investment - Narrative (Details) - USD ($)	3 Months Ended		12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Other than Temporary Impairment	$ 0	$ 0	$ 0	$ 0
Net gains (losses) on other investments			$ 35,500,000	18,900,000	$ 24,600,000
Surf House Ocean Views Holdings, LLC
Schedule of Equity Method Investments [Line Items]
Other than Temporary Impairment Losses, Investments				$ 11,300,000	$ 2,600,000