CONSOLIDATION - Variable Interest Entities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Variable Interest Entity [Line Items]
Assets of consolidated VIEs	$ 21,206,326		$ 21,206,326		$ 21,605,164
Liabilities of consolidated VIEs	16,641,576		16,641,576		16,694,730
Collateralized loan obligations
Variable Interest Entity [Line Items]
Maximum exposure to loss attributable to the company's investment in VIEs	82,200		82,200		103,800
Consolidated Funds
Variable Interest Entity [Line Items]
Net income attributable to non-controlling interests related to consolidated VIEs	16,340	$ 47,370	48,700	$ 102,255
Non-Consolidated Variable Interest Entities
Variable Interest Entity [Line Items]
Maximum exposure to loss attributable to the company's investment in VIEs	377,935		377,935		353,768
Consolidated VIEs
Variable Interest Entity [Line Items]
Maximum exposure to loss attributable to the company's investment in VIEs	533,941		533,941		583,192
Consolidated VIEs | Consolidated Funds
Variable Interest Entity [Line Items]
Assets of consolidated VIEs	12,501,069		12,501,069		13,197,321
Liabilities of consolidated VIEs	11,173,216		11,173,216		$ 12,018,655
Net income attributable to non-controlling interests related to consolidated VIEs	$ 8,733	$ 38,597	$ 28,470	$ 84,285