CONSOLIDATION - Schedule of Interest in VIEs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Variable Interest Entity [Line Items]
Assets of consolidated VIEs	$ 24,522,650		$ 24,522,650		$ 24,730,500
Liabilities of consolidated VIEs	18,643,116		18,643,116		19,709,151
Collateralized loan obligations
Variable Interest Entity [Line Items]
Maximum exposure to loss attributable to the company's investment in VIEs	96,100		96,100		83,100
Non-Consolidated Variable Interest Entities
Variable Interest Entity [Line Items]
Maximum exposure to loss attributable to the company's investment in VIEs	384,552		384,552		503,376
Consolidated VIEs
Variable Interest Entity [Line Items]
Maximum exposure to loss attributable to the company's investment in VIEs	784,102		784,102		910,600
Consolidated VIEs | Consolidated Funds
Variable Interest Entity [Line Items]
Assets of consolidated VIEs	14,892,869		14,892,869		15,484,962
Liabilities of consolidated VIEs	12,180,936		12,180,936		$ 13,409,257
Net income attributable to non-controlling interests related to consolidated VIEs	$ 57,289	$ 66,526	$ 216,614	$ 165,118