ACQUISITIONS AND INTANGIBLE ASSETS, NET - Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Acquired Finite-Lived Intangible Assets [Line Items]
Total intangible assets, gross	$ 2,776,220	$ 2,725,300
Total accumulated amortization	(370,798)	(113,889)
Total Intangible Assets, Net	2,405,422	2,611,411
Investment management agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Total intangible assets, gross	2,222,320	2,183,200
Total accumulated amortization	$ (290,816)	(89,961)
Remaining weighted-average amortization period	12 years 7 months 6 days
Investment management agreements | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life (in years)	1 month 6 days
Investment management agreements | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life (in years)	20 years
Investor relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Total intangible assets, gross	$ 459,500	448,800
Total accumulated amortization	$ (60,630)	(18,033)
Remaining weighted-average amortization period	9 years 7 months 6 days
Investor relationships | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life (in years)	5 years 9 months 18 days
Investor relationships | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life (in years)	13 years
Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Total intangible assets, gross	$ 94,400	93,300
Total accumulated amortization	$ (19,352)	$ (5,895)
Remaining weighted-average amortization period	5 years 7 months 6 days
Trademarks | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life (in years)	7 years
Trademarks | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life (in years)	7 years