Segment Reporting - Consolidated Revenues and Assets Based on Geographical Focus of Associated Investment Vehicle (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Share of Total Revenues	$ 4,438.7	$ 8,782.1	$ 2,934.6
Percentages Of Revenue By Geographic Regions	100.00%	100.00%	100.00%
Consolidated VIEs, assets	$ 21,403.0	$ 21,250.4	$ 15,644.8
Percentage Of Assets By Geographic Regions	100.00%	100.00%	100.00%
Americas
Segment Reporting Information [Line Items]
Share of Total Revenues	$ 2,560.0	$ 5,434.6	$ 1,787.7
Percentages Of Revenue By Geographic Regions	58.00%	62.00%	61.00%
Consolidated VIEs, assets	$ 11,662.8	$ 10,874.2	$ 7,758.8
Percentage Of Assets By Geographic Regions	55.00%	51.00%	50.00%
EMEA
Segment Reporting Information [Line Items]
Share of Total Revenues	$ 1,603.8	$ 2,629.3	$ 622.3
Percentages Of Revenue By Geographic Regions	36.00%	30.00%	21.00%
Consolidated VIEs, assets	$ 8,632.9	$ 8,920.4	$ 6,807.0
Percentage Of Assets By Geographic Regions	40.00%	42.00%	43.00%
Asia-Pacific
Segment Reporting Information [Line Items]
Share of Total Revenues	$ 274.9	$ 718.2	$ 524.6
Percentages Of Revenue By Geographic Regions	6.00%	8.00%	18.00%
Consolidated VIEs, assets	$ 1,107.3	$ 1,455.8	$ 1,079.0
Percentage Of Assets By Geographic Regions	5.00%	7.00%	7.00%