GOODWILL AND INTANGIBLE ASSETS - Schedule of Goodwill (Details) $ in Thousands	6 Months Ended
Jun. 30, 2026 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 3,454,107
Acquisitions	10,359
Foreign currency translation	(177)
Goodwill, ending balance	3,464,289
Credit Group
Goodwill [Roll Forward]
Goodwill, beginning balance	313,830
Acquisitions	0
Foreign currency translation	(1,086)
Goodwill, ending balance	312,744
Real Assets Group
Goodwill [Roll Forward]
Goodwill, beginning balance	2,601,229
Acquisitions	10,359
Foreign currency translation	912
Goodwill, ending balance	2,612,500
Secondaries Group
Goodwill [Roll Forward]
Goodwill, beginning balance	417,640
Acquisitions	0
Foreign currency translation	(3)
Goodwill, ending balance	417,637
Private Equity Group
Goodwill [Roll Forward]
Goodwill, beginning balance	121,408
Acquisitions	0
Foreign currency translation	0
Goodwill, ending balance	$ 121,408

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details