Segment Information - Schedule of Property and Equipment, Net by Location (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 2,584.6	$ 1,452.9
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	2,392.4	1,359.7
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	176.6	77.3
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	15.6	15.9
Total long-lived assets outside of the United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 192.2	$ 93.2