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Goodwill and Other Intangible Assets (Tables) | 6 Months Ended
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Jun. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract] |
Summary of Change in Carrying Amount of Goodwill | The change in the carrying amount of goodwill for the six months ended June 30, 2025 is summarized as follows (in thousands):
| Research Segment |  |  | Consulting Segment |  |  | Total |
Balance at December 31, 2024 | $ | 219,814 |  |  | $ | 8,145 |  |  | $ | 227,959 |
Impairment |  | (83,895 | ) |  |  | — |  |  |  | (83,895 | )
Translation adjustments |  | 3,151 |  |  |  | 161 |  |  |  | 3,312 |
Balance at June 30, 2025 | $ | 139,070 |  |  | $ | 8,306 |  |  | $ | 147,376 |
Summary of Carrying Values of Finite-Lived Intangible Assets | The carrying values of finite-lived intangible assets are as follows (in thousands):
| June 30, 2025 |
| Gross |  |  |  |  |  | Net |
| Carrying |  |  | Accumulated |  |  | Carrying |
| Amount |  |  | Amortization |  |  | Amount |
Amortizable intangible assets: |  |  |  |  |  |  |  |
Customer relationships | $ | 77,000 |  |  | $ | 54,108 |  |  | $ | 22,892 |
Technology |  | 13,000 |  |  |  | 12,984 |  |  |  | 16 |
Trademarks |  | 12,000 |  |  |  | 11,867 |  |  |  | 133 |
Total | $ | 102,000 |  |  | $ | 78,959 |  |  | $ | 23,041 |
| December 31, 2024 |
| Gross |  |  |  |  |  | Net |
| Carrying |  |  | Accumulated |  |  | Carrying |
| Amount |  |  | Amortization |  |  | Amount |
Amortizable intangible assets: |  |  |  |  |  |  |  |
Customer relationships | $ | 77,000 |  |  | $ | 49,946 |  |  | $ | 27,054 |
Technology |  | 13,000 |  |  |  | 12,978 |  |  |  | 22 |
Trademarks |  | 12,000 |  |  |  | 11,601 |  |  |  | 399 |
Total | $ | 102,000 |  |  | $ | 74,525 |  |  | $ | 27,475 |
Summary of Estimated Intangible Assets Amortization Expense | Estimated intangible asset amortization expense for each of the four succeeding years is as follows (in thousands):
2025 (remainder) | $ | 4,301 |
2026 |  | 8,335 |
2027 |  | 8,324 |
2028 |  | 2,081 |
Total | $ | 23,041 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 + Details
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