GOODWILL AND INTANGIBLE ASSETS - Carrying Value of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Finite-lived intangible assets, net
Finite-lived intangible assets	$ 834,551	$ 859,957
Foreign currency translation	(477)	935
Total finite-lived intangible assets	834,074	860,892
Less: accumulated amortization	(271,201)	(220,472)
Finite-lived intangible assets, net	562,873	640,420
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	567,800	567,800
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Intangible assets, net	1,130,673	1,208,220
Management contracts
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 567,800	567,800
Management contracts
Finite-lived intangible assets, net
Weighted average amortization period	4 years 7 months 6 days
Finite-lived intangible assets	$ 571,750	586,077
Client relationships
Finite-lived intangible assets, net
Weighted average amortization period	9 years 2 months 12 days
Finite-lived intangible assets	$ 262,301	262,301
Trade name
Finite-lived intangible assets, net
Weighted average amortization period	0 years
Finite-lived intangible assets	$ 0	11,079
Other
Finite-lived intangible assets, net
Weighted average amortization period	1 year 3 months 18 days
Finite-lived intangible assets	$ 500	$ 500