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Intangible Assets - Additional Information (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
May 31, 2026 | Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025
Intangible Asset, Finite-Lived [Line Items] |  |  |  |  |
Amortization expense for intangible assets |  | $ 25.8 | $ 25.8 | $ 50.9 | $ 51.6
Proceeds from sale of assets | $ 1.8 |  |  |  |
Location, Statement of Income, Balance [Axis]: us-gaap:OtherNonoperatingIncomeExpense |  |  |  |  |
Intangible Asset, Finite-Lived [Line Items] |  |  |  |  |
Gain on disposal of assets | $ 1.8 |  |  |  |
Informa TechTarget [Member] | Software, In-Development, Internally Developed, and Purchased [Member] |  |  |  |  |
Intangible Asset, Finite-Lived [Line Items] |  |  |  |  |
Amortization expense for intangible assets |  | $ 5.0 | $ 4.1 | $ 9.3 | $ 8.5

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