Segment Reporting - Reconciliation of Income Before Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Income before provision for income taxes	$ (600.9)	$ 1,572.5	$ 4,027.5
Adjustments:
Unrealized principal investment (income) loss	44.8	1,898.0	6,721.9
Equity-based compensation	249.1	154.0	163.1
Net income attributable to non-controlling interests in consolidated entities	111.7	59.7	70.5
Right-of-use asset impairment			26.8
Total Reportable Segments
Adjustments:
Net unrealized performance and fee related performance revenues	1,659.2	(183.7)	(1,606.2)
Distributable Earnings			2,243.7
Realized principal investment income			209.5
Net interest			93.5
Fee Related Earnings			598.1
Reconciling Items
Adjustments:
Equity-based compensation	260.1	161.9	172.9
Acquisition or disposition-related charges and amortization of intangibles and impairment	145.3	187.4	37.7
Net income attributable to non-controlling interests in consolidated entities	(111.7)	(59.7)	(70.5)
Tax (expense) benefit associated with certain foreign performance revenues	(1.0)	3.0	(17.1)
Debt extinguishment costs	0.0	0.0	10.2
Right-of-use asset impairment	0.0	0.0	26.8
Other adjustments	11.6	12.4	14.2
Distributable Earnings	1,430.5	1,909.0	2,243.7
Fee Related Earnings	859.4	834.4	598.1
Unrealized principal investment income (loss) | Reconciling Items
Adjustments:
Unrealized principal investment (income) loss	(36.1)	38.3	(351.8)
Unrealized principal investment income (loss) | Reconciling Items | Fortitude Holdings
Adjustments:
Principal investment loss from dilution of indirect investment in Fortitude	104.0	176.9	0.0
Performance allocations
Adjustments:
Unrealized principal investment (income) loss	(88.6)	1,327.5	6,084.6
Realized performance revenues, net of related compensation	$ (1,192.3)	$ 607.6	3,123.6
Performance allocations | Total Reportable Segments
Adjustments:
Realized performance revenues, net of related compensation			$ 1,529.6