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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
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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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