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v3.22.1

Operating Segments - Schedule of Information by Reportable Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Segment Reporting Information [Line Items] |  |
Total revenues | $ 124,971 | $ 113,781
Segment expenses | (50,248) | (44,606)
Selling, marketing, administrative and other expenses | (64,890) | (57,618)
Amortization of intangible assets | (3,362) | (3,903)
Integration costs | 0 | (118)
Interest expense, other income (expense) and gains (losses) on investments | (444) | (1,599)
Income before income taxes | 6,027 | 5,937
Research Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 96,970 | 87,699
Segment expenses | (34,180) | (30,717)
Consulting Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 27,241 | 25,819
Segment expenses | (14,317) | (12,325)
Events Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 760 | 263
Segment expenses | (1,751) | (1,564)
Research [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 85,780 | 74,968
Research [Member] | Research Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 85,780 | 74,968
Research [Member] | Consulting Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 0 | 0
Research [Member] | Events Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 0 | 0
Consulting [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 38,431 | 38,550
Consulting [Member] | Research Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 11,190 | 12,731
Consulting [Member] | Consulting Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 27,241 | 25,819
Consulting [Member] | Events Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 0 | 0
Events [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 760 | 263
Events [Member] | Research Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 0 | 0
Events [Member] | Consulting Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 0 | 0
Events [Member] | Events Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Total revenues | $ 760 | $ 263

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