GOODWILL AND INTANGIBLE ASSETS - Goodwill (Details) $ in Thousands	3 Months Ended
Mar. 31, 2022 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 787,972
Acquisitions	213,216
Reallocation	0
Foreign currency translation	(899)
Goodwill, ending balance	1,000,289
Credit Group
Goodwill [Roll Forward]
Goodwill, beginning balance	32,196
Acquisitions	0
Reallocation	0
Foreign currency translation	0
Goodwill, ending balance	32,196
Private Equity Group
Goodwill [Roll Forward]
Goodwill, beginning balance	58,600
Acquisitions	0
Reallocation	(10,530)
Foreign currency translation	0
Goodwill, ending balance	48,070
Real Assets Group
Goodwill [Roll Forward]
Goodwill, beginning balance	53,339
Acquisitions	213,313
Reallocation	10,530
Foreign currency translation	0
Goodwill, ending balance	277,182
Secondary Solutions Group
Goodwill [Roll Forward]
Goodwill, beginning balance	417,738
Acquisitions	(97)
Reallocation	0
Foreign currency translation	(7)
Goodwill, ending balance	417,634
Strategic Initiatives
Goodwill [Roll Forward]
Goodwill, beginning balance	226,099
Acquisitions	0
Reallocation	0
Foreign currency translation	(892)
Goodwill, ending balance	$ 225,207

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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-Subparagraph (SX 210.9-03(10)(1))
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of transfers into (out of) an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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