v3.26.3
Goodwill and Acquired Intangible Assets - Intangible Assets (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Intangible Asset, Finite-Lived, Acquired [Line Items]    
Gross Carrying Amount $ 630.9 $ 630.9
Accumulated Amortization (483.3) (446.6)
Net 147.6 184.3
Acquired Indefinite-lived Intangible Assets [Line Items]    
Intangible assets not subject to amortization 33.0 33.0
Total intangible assets 663.9 663.9
Total intangible assets 180.6 217.3
Pre-Acquisition ZI brand portfolio    
Acquired Indefinite-lived Intangible Assets [Line Items]    
Intangible assets not subject to amortization 33.0 33.0
Customer relationships    
Intangible Asset, Finite-Lived, Acquired [Line Items]    
Gross Carrying Amount 288.1 288.1
Accumulated Amortization (168.4) (153.4)
Net 119.7 134.7
Acquired technology    
Intangible Asset, Finite-Lived, Acquired [Line Items]    
Gross Carrying Amount 331.3 331.3
Accumulated Amortization (305.2) (284.2)
Net 26.1 47.1
Brand portfolio    
Intangible Asset, Finite-Lived, Acquired [Line Items]    
Gross Carrying Amount 11.5 11.5
Accumulated Amortization (9.7) (9.0)
Net $ 1.8 $ 2.5