Segment and Geographical Area Information Segment and Geographical Area Information - Operating Lease Assets by Geographical Area (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	$ 172.1	$ 181.2
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	88.8	92.9
Total International
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	83.3	88.3
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	13.3	14.7
Continental Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	18.1	19.1
Australia
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	2.2	2.4
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	7.0	7.7
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	42.6	44.2
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	$ 0.1	$ 0.2