Segment and Geographical Area Information Segment and Geographical Area Information - Operating Lease Assets by Geographical Area (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	$ 164.4	$ 181.2
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	79.0	92.9
Total International
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	85.4	88.3
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	10.5	14.7
Continental Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	16.2	19.1
Australia
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	1.7	2.4
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	6.7	7.7
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	49.7	44.2
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated operating lease assets	$ 0.6	$ 0.2