Revenues - Disaggregated Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Disaggregation Of Revenue [Line Items]
Total Revenue	$ 103,887	$ 58,659
Marketing Advertising Services And Sponsorship [Member]
Disaggregation Of Revenue [Line Items]
Total Revenue	72,283	33,481
Intelligence Subscription Services [Member]
Disaggregation Of Revenue [Line Items]
Total Revenue	18,846	18,692
Advisory Services [Member]
Disaggregation Of Revenue [Line Items]
Total Revenue	12,546	6,328
Exhibitor And Attendee [Member]
Disaggregation Of Revenue [Line Items]
Total Revenue	$ 212	$ 158

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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+ Details