v3.24.2

SEGMENT INFORMATION - Schedule of Operating Revenues by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	$ 707,949	$ 621,157	$ 1,387,914	$ 1,213,375
Index
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	397,192	362,316	771,064	701,698
Analytics
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	165,995	149,881	329,961	296,951
ESG and Climate
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	79,855	71,219	157,739	138,277
All Other - Private Assets
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	$ 64,907	$ 37,741	$ 129,150	$ 76,449

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