Segment Information (Long-Lived Assets by Geographic Region) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 332.7	$ 309.0
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	187.3	159.7
Western Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	129.1	134.7
Rest of the World
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 16.3	$ 14.6