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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