Amount of realized performance fees, if the fund were liquidated at the reporting date fair value, that would be given back to the fund investors at the end of the fund's life if the fund fair value does not recover sufficiently to pass through the hurdle rate that allows for the recognition of performance fees.

No definition available.

Supplemental Financial Information - Financial Position (Details) - USD ($) $ in Millions	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Assets
Cash and cash equivalents	$ 1,376.8		$ 1,440.3	$ 1,267.7
Cash and cash equivalents held at Consolidated Funds	488.5		346.0	352.3
Restricted cash	2.1		1.8	4.5
Investments	11,095.0		9,955.3
Investments of Consolidated Funds	7,427.9		7,253.1
Due from affiliates and other receivables, net	757.2		691.6
Due from affiliates and other receivables of Consolidated Funds, net	218.3		141.0
Fixed assets, net	174.1		161.5
Lease right-of-use assets, net	353.6		332.2
Deposits and other	71.8		70.6
Intangible assets, net	670.6		766.1
Deferred tax assets	22.5		16.5
Total assets	22,658.4		21,176.0
Liabilities and equity
Debt obligations	2,211.0		2,281.0
Loans payable of Consolidated Funds	6,531.4		6,486.5
Accounts payable, accrued expenses and other liabilities	349.9		333.8
Accrued compensation and benefits	5,434.8		4,922.2
Due to affiliates	219.8		275.9
Deferred revenue	379.5		140.3
Deferred tax liabilities	150.5		45.3
Other liabilities of Consolidated Funds	497.6		374.4
Lease liabilities	504.6		488.1
Accrued giveback obligations	43.9		44.0
Total liabilities	16,323.0		15,391.5
Common stock	3.6		3.6
Additional paid-in capital	3,774.5		3,403.0
Retained earnings	2,034.5		2,082.1
Accumulated other comprehensive loss	(265.9)		(297.3)
Non-controlling interests in consolidated entities	788.7		593.1
Total equity	6,335.4	$ 5,729.4	5,784.5	6,504.8	$ 6,644.6	$ 6,821.3
Total liabilities and equity	22,658.4		21,176.0
Performance allocations	7,210.8		6,169.9
Consolidated Operating Entities
Assets
Cash and cash equivalents	1,376.8			1,267.7
Cash and cash equivalents held at Consolidated Funds	488.5			352.3
Restricted cash	2.1			$ 4.5
Consolidated Entities and Consolidated Funds \| Consolidated Operating Entities
Assets
Cash and cash equivalents	1,376.8		1,440.3
Cash and cash equivalents held at Consolidated Funds	0.0		0.0
Restricted cash	2.1		1.8
Investments	11,407.5		10,104.5
Investments of Consolidated Funds	0.0		0.0
Due from affiliates and other receivables, net	1,061.5		1,009.2
Due from affiliates and other receivables of Consolidated Funds, net	0.0		0.0
Fixed assets, net	174.1		161.5
Lease right-of-use assets, net	353.6		332.2
Deposits and other	69.9		66.0
Intangible assets, net	670.6		766.1
Deferred tax assets	22.5		16.5
Total assets	15,138.6		13,898.1
Liabilities and equity
Debt obligations	2,211.0		2,281.0
Loans payable of Consolidated Funds	0.0		0.0
Accounts payable, accrued expenses and other liabilities	349.9		333.8
Accrued compensation and benefits	5,434.8		4,922.2
Due to affiliates	214.4		269.6
Deferred revenue	379.5		140.3
Deferred tax liabilities	150.5		45.3
Other liabilities of Consolidated Funds	0.0		0.0
Lease liabilities	504.6		488.1
Accrued giveback obligations	43.9		44.0
Total liabilities	9,288.6		8,524.3
Common stock	3.6		3.6
Additional paid-in capital	3,774.5		3,403.0
Retained earnings	2,034.5		2,082.1
Accumulated other comprehensive loss	(278.3)		(292.7)
Non-controlling interests in consolidated entities	315.7		177.8
Total equity	5,850.0		5,373.8
Total liabilities and equity	15,138.6		13,898.1
Consolidated Entities and Consolidated Funds \| Consolidated Funds
Assets
Cash and cash equivalents	0.0		0.0
Cash and cash equivalents held at Consolidated Funds	488.5		346.0
Restricted cash	0.0		0.0
Investments	0.0		0.0
Investments of Consolidated Funds	7,427.9		7,313.9
Due from affiliates and other receivables, net	0.0		0.0
Due from affiliates and other receivables of Consolidated Funds, net	218.3		141.0
Fixed assets, net	0.0		0.0
Lease right-of-use assets, net	0.0		0.0
Deposits and other	1.9		4.6
Intangible assets, net	0.0		0.0
Deferred tax assets	0.0		0.0
Total assets	8,136.6		7,805.5
Liabilities and equity
Debt obligations	0.0		0.0
Loans payable of Consolidated Funds	6,830.3		6,796.4
Accounts payable, accrued expenses and other liabilities	0.0		0.0
Accrued compensation and benefits	0.0		0.0
Due to affiliates	5.4		6.3
Deferred revenue	0.0		0.0
Deferred tax liabilities	0.0		0.0
Other liabilities of Consolidated Funds	497.7		374.4
Lease liabilities	0.0		0.0
Accrued giveback obligations	0.0		0.0
Total liabilities	7,333.4		7,177.1
Common stock	0.0		0.0
Additional paid-in capital	334.1		223.8
Retained earnings	0.0		0.0
Accumulated other comprehensive loss	(3.9)		(10.7)
Non-controlling interests in consolidated entities	473.0		415.3
Total equity	803.2		628.4
Total liabilities and equity	8,136.6		7,805.5
Eliminations
Assets
Cash and cash equivalents	0.0		0.0
Cash and cash equivalents held at Consolidated Funds	0.0		0.0
Restricted cash	0.0		0.0
Investments	(312.5)		(149.2)
Investments of Consolidated Funds	0.0		(60.8)
Due from affiliates and other receivables, net	(304.3)		(317.6)
Due from affiliates and other receivables of Consolidated Funds, net	0.0		0.0
Fixed assets, net	0.0		0.0
Lease right-of-use assets, net	0.0		0.0
Deposits and other	0.0		0.0
Intangible assets, net	0.0		0.0
Deferred tax assets	0.0		0.0
Total assets	(616.8)		(527.6)
Liabilities and equity
Debt obligations	0.0		0.0
Loans payable of Consolidated Funds	(298.9)		(309.9)
Accounts payable, accrued expenses and other liabilities	0.0		0.0
Accrued compensation and benefits	0.0		0.0
Due to affiliates	0.0		0.0
Deferred revenue	0.0		0.0
Deferred tax liabilities	0.0		0.0
Other liabilities of Consolidated Funds	(0.1)		0.0
Lease liabilities	0.0		0.0
Accrued giveback obligations	0.0		0.0
Total liabilities	(299.0)		(309.9)
Common stock	0.0		0.0
Additional paid-in capital	(334.1)		(223.8)
Retained earnings	0.0		0.0
Accumulated other comprehensive loss	16.3		6.1
Non-controlling interests in consolidated entities	0.0		0.0
Total equity	(317.8)		(217.7)
Total liabilities and equity	$ (616.8)		$ (527.6)