Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Total equity-based compensation expense | $ 31.1 | $ 29.9 | $ 82.3 | $ 89.2 |
| Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense | ||||
| Total equity-based compensation expense | 10.0 | 8.1 | 25.8 | 22.0 |
| Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense | ||||
| Total equity-based compensation expense | 8.9 | 8.5 | 23.0 | 25.5 |
| Income Statement Location [Axis]: us-gaap:SellingAndMarketingExpense | ||||
| Total equity-based compensation expense | 9.1 | 10.4 | 25.3 | 33.2 |
| Income Statement Location [Axis]: zi:CostOfGoodsAndServiceIncludingDepreciationAndExcludingAmortization | ||||
| Total equity-based compensation expense | $ 3.1 | $ 2.9 | $ 8.2 | $ 8.5 |