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Business Overview and Basis of Presentation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
Jan. 10, 2024
Jun. 30, 2026
Dec. 31, 2025
Dec. 02, 2024
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Common stock, shares issued   72,346,562 72,308,235  
Informa HoldCo [Member]        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Ownership percentage of shares outstanding       58.00%
Former TechTargets [Member]        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Cash consideration $ 350      
Common stock, shares issued 41,651,366      
Share price $ 11.7      
Ownership percentage of shares outstanding       42.00%