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v3.24.0.1

Segment information - Revenue, Properties and Outsourcing Assets by Geographic Segment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Revenue | $ 2,015.4 | $ 1,979.9 | $ 2,054.4
Properties, net | 64.3 | 75.9 | 86.5
Outsourcing assets, net | 31.6 | 66.4 | 124.6
United States |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Revenue | 889.0 | 854.9 | 856.2
Properties, net | 45.9 | 52.5 | 62.5
Outsourcing assets, net | 19.5 | 36.0 | 66.2
United Kingdom |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Revenue | 289.3 | 228.0 | 284.9
Outsourcing assets, net | 2.0 | 17.9 | 36.3
Australia |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Outsourcing assets, net | 7.8 | 9.5 | 16.7
Other foreign |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Revenue | 837.1 | 897.0 | 913.3
Properties, net | 18.4 | 23.4 | 24.0
Outsourcing assets, net | $ 2.3 | $ 3.0 | $ 5.4

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