v3.24.3

SEGMENT INFORMATION - Schedule of Operating Revenues by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	$ 724,705	$ 625,439	$ 2,112,619	$ 1,838,814
Index
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	404,882	362,122	1,175,946	1,063,820
Analytics
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	172,376	154,268	502,337	451,219
ESG and Climate
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	83,643	73,038	241,382	211,315
All Other - Private Assets
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	$ 63,804	$ 36,011	$ 192,954	$ 112,460

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