GOODWILL AND INTANGIBLE ASSETS - Schedule of Carrying Value of Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Finite-lived intangible assets, net
Finite-lived intangible assets	$ 765,095	$ 805,662
Foreign currency translation	2,615	1,126
Total finite-lived intangible assets	767,710	806,788
Less: accumulated amortization	(365,534)	(316,093)
Finite-lived intangible assets, net	402,176	490,695
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Intangible assets, net	969,976	1,058,495
Management contracts
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived management contracts	$ 567,800	567,800
Management contracts
Finite-lived intangible assets, net
Weighted average amortization period	3 years 10 months 24 days
Finite-lived intangible assets	$ 563,675	604,242
Client relationships
Finite-lived intangible assets, net
Weighted average amortization period	7 years 9 months 18 days
Finite-lived intangible assets	$ 200,920	200,920
Other
Finite-lived intangible assets, net
Weighted average amortization period	1 month 6 days
Finite-lived intangible assets	$ 500	$ 500