Summary of Significant Accounting Policies - Revenue by Product Type (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Total revenue	$ 1,265.3	$ 1,147.6	$ 3,677.2	$ 3,380.6
A&C
Disaggregation of Revenue [Line Items]
Total revenue	481.0	423.1	1,391.3	1,211.8
Core
Disaggregation of Revenue [Line Items]
Total revenue	784.3	724.5	2,285.9	2,168.8
Core | Domains
Disaggregation of Revenue [Line Items]
Total revenue	595.9	535.9	1,724.0	1,597.1
Core | Other
Disaggregation of Revenue [Line Items]
Total revenue	$ 188.4	$ 188.6	$ 561.9	$ 571.7