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 - Schedule of Supplemental Financial Position (Details) - USD ($) $ in Millions	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023
Assets
Cash and cash equivalents	$ 1,275.8		$ 1,266.0	$ 914.8
Cash and cash equivalents held at Consolidated Funds	463.1		830.4	1,047.5
Investments	11,203.1		10,936.7
Investments of Consolidated Funds	9,857.5		7,782.4
Due from affiliates and other receivables, net	795.5		805.6
Due from affiliates and other receivables of Consolidated Funds, net	247.8		237.1
Fixed assets, net	191.7		185.3
Lease right-of-use assets, net	351.1		341.4
Deposits and other	82.9		56.9
Intangible assets, net	573.6		634.1
Deferred tax assets	25.7		27.6
Total assets	25,067.8		23,103.5
Liabilities and equity
Debt obligations	2,155.3		2,143.5
Loans payable of Consolidated Funds	8,056.1		6,864.2
Accounts payable, accrued expenses and other liabilities	439.5		389.8
Accrued compensation and benefits	5,598.9		5,446.6
Due to affiliates	198.9		241.9
Deferred revenue	204.0		138.7
Deferred tax liabilities	128.3		137.0
Other liabilities of Consolidated Funds	1,030.9		861.6
Lease liabilities	493.7		488.6
Accrued giveback obligations	44.6		44.0
Total liabilities	18,350.2		16,755.9
Common stock	3.6		3.6
Additional paid-in capital	4,096.4		3,892.3
Retained earnings	1,950.0		2,040.8
Accumulated other comprehensive loss	(189.5)		(329.8)
Non-controlling interests in consolidated entities	857.1		740.7
Total equity	6,717.6	$ 6,385.2	6,347.6	5,729.4	$ 5,740.0	$ 5,784.5
Total liabilities and equity	25,067.8		23,103.5
Performance allocations	7,598.8		7,053.5
Consolidated Operating Entities
Assets
Cash and cash equivalents	1,275.8			914.8
Cash and cash equivalents held at Consolidated Funds	463.1			$ 1,047.5
Consolidated Entities and Consolidated Funds \| Consolidated Operating Entities
Assets
Cash and cash equivalents	1,275.8		1,266.0
Cash and cash equivalents held at Consolidated Funds	0.0		0.0
Investments	11,890.3		11,324.1
Investments of Consolidated Funds	0.0		0.0
Due from affiliates and other receivables, net	1,097.9		1,111.0
Due from affiliates and other receivables of Consolidated Funds, net	0.0		0.0
Fixed assets, net	191.7		185.3
Lease right-of-use assets, net	351.1		341.4
Deposits and other	81.4		55.1
Intangible assets, net	573.6		634.1
Deferred tax assets	25.7		27.6
Total assets	15,487.5		14,944.6
Liabilities and equity
Debt obligations	2,155.3		2,143.5
Loans payable of Consolidated Funds	0.0		0.0
Accounts payable, accrued expenses and other liabilities	439.5		389.8
Accrued compensation and benefits	5,598.9		5,446.6
Due to affiliates	193.2		236.6
Deferred revenue	204.0		138.7
Deferred tax liabilities	128.3		137.0
Other liabilities of Consolidated Funds	0.0		0.0
Lease liabilities	493.7		488.6
Accrued giveback obligations	44.6		44.0
Total liabilities	9,257.5		9,024.8
Common stock	3.6		3.6
Additional paid-in capital	4,096.4		3,892.3
Retained earnings	1,950.0		2,040.8
Accumulated other comprehensive loss	(222.7)		(350.5)
Non-controlling interests in consolidated entities	402.7		333.6
Total equity	6,230.0		5,919.8
Total liabilities and equity	15,487.5		14,944.6
Consolidated Entities and Consolidated Funds \| Consolidated Funds
Assets
Cash and cash equivalents	0.0		0.0
Cash and cash equivalents held at Consolidated Funds	463.1		830.4
Investments	0.0		0.0
Investments of Consolidated Funds	9,857.5		7,782.4
Due from affiliates and other receivables, net	0.0		0.0
Due from affiliates and other receivables of Consolidated Funds, net	247.8		237.1
Fixed assets, net	0.0		0.0
Lease right-of-use assets, net	0.0		0.0
Deposits and other	1.5		1.8
Intangible assets, net	0.0		0.0
Deferred tax assets	0.0		0.0
Total assets	10,569.9		8,851.7
Liabilities and equity
Debt obligations	0.0		0.0
Loans payable of Consolidated Funds	8,350.3		7,161.6
Accounts payable, accrued expenses and other liabilities	0.0		0.0
Accrued compensation and benefits	0.0		0.0
Due to affiliates	5.7		5.3
Deferred revenue	0.0		0.0
Deferred tax liabilities	0.0		0.0
Other liabilities of Consolidated Funds	1,031.0		861.7
Lease liabilities	0.0		0.0
Accrued giveback obligations	0.0		0.0
Total liabilities	9,387.0		8,028.6
Common stock	0.0		0.0
Additional paid-in capital	715.7		423.5
Retained earnings	0.0		0.0
Accumulated other comprehensive loss	12.8		(7.5)
Non-controlling interests in consolidated entities	454.4		407.1
Total equity	1,182.9		823.1
Total liabilities and equity	10,569.9		8,851.7
Eliminations
Assets
Cash and cash equivalents	0.0		0.0
Cash and cash equivalents held at Consolidated Funds	0.0		0.0
Investments	(687.2)		(387.4)
Investments of Consolidated Funds	0.0		0.0
Due from affiliates and other receivables, net	(302.4)		(305.4)
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	(989.6)		(692.8)
Liabilities and equity
Debt obligations	0.0		0.0
Loans payable of Consolidated Funds	(294.2)		(297.4)
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)		(0.1)
Lease liabilities	0.0		0.0
Accrued giveback obligations	0.0		0.0
Total liabilities	(294.3)		(297.5)
Common stock	0.0		0.0
Additional paid-in capital	(715.7)		(423.5)
Retained earnings	0.0		0.0
Accumulated other comprehensive loss	20.4		28.2
Non-controlling interests in consolidated entities	0.0		0.0
Total equity	(695.3)		(395.3)
Total liabilities and equity	$ (989.6)		$ (692.8)