v3.23.2

SEGMENT INFORMATION - Operating Revenues by Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	$ 621,157	$ 551,806	$ 1,213,375	$ 1,111,751
Index
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	362,316	320,949	701,698	651,708
Analytics
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	149,881	141,684	296,951	281,481
ESG and Climate
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	71,219	55,128	138,277	107,157
All Other - Private Assets
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	$ 37,741	$ 34,045	$ 76,449	$ 71,405

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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