v3.25.2
Segment information - Revenue and Operating Profits (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Segment Reporting Information [Line Items]        
Revenues $ 1,300.5 $ 1,253.1 $ 2,547.2 $ 2,489.2
Cost of revenues 976.7 937.8 1,916.2 1,865.0
Selling, general and administrative expenses 184.5 194.3 370.8 394.9
Operating profit 133.9 116.0 253.0 236.9
Foreign currency transactions gains     1.2 3.5
Reportable segments        
Segment Reporting Information [Line Items]        
Revenues 1,300.5 1,253.1 2,547.2 2,489.2
Operating profit 198.0 186.1 380.3 364.5
Reportable segments | North America        
Segment Reporting Information [Line Items]        
Revenues 434.3 412.0 851.9 817.5
Labor and fringe benefit costs 154.4 155.2 307.6 311.0
Other cost of revenues segment items 160.6 148.7 317.3 295.3
Cost of revenues 315.0 303.9 624.9 606.3
Selling, general and administrative expenses 57.0 56.4 111.6 111.1
Operating profit 62.3 51.7 115.4 100.1
Reportable segments | Latin America        
Segment Reporting Information [Line Items]        
Revenues 319.4 331.7 627.0 666.4
Labor and fringe benefit costs 145.5 147.0 286.2 294.1
Other cost of revenues segment items 88.5 91.7 171.7 182.6
Cost of revenues 234.0 238.7 457.9 476.7
Selling, general and administrative expenses 30.4 29.8 60.2 63.5
Operating profit 55.0 63.2 108.9 126.2
Reportable segments | Europe        
Segment Reporting Information [Line Items]        
Revenues 337.8 309.7 636.9 601.1
Labor and fringe benefit costs 147.3 136.6 279.8 270.5
Other cost of revenues segment items 114.3 106.1 218.4 202.2
Cost of revenues 261.6 242.7 498.2 472.7
Selling, general and administrative expenses 36.7 34.8 74.0 70.3
Operating profit 39.5 32.2 64.7 58.1
Reportable segments | Rest of World        
Segment Reporting Information [Line Items]        
Revenues 209.0 199.7 431.4 404.2
Labor and fringe benefit costs 60.4 58.3 118.6 118.3
Other cost of revenues segment items 90.0 84.9 188.9 172.4
Cost of revenues 150.4 143.2 307.5 290.7
Selling, general and administrative expenses 17.4 17.5 32.6 33.4
Operating profit 41.2 39.0 91.3 80.1
Corporate expenses        
Segment Reporting Information [Line Items]        
General, administrative and other expenses (37.2) (33.2) (72.2) (74.4)
Foreign currency transactions gains 1.8 3.1 5.0 9.4
Reconciliation of segment policies to GAAP 1.9 (0.4) 2.0 1.1
Other items not allocated to segments        
Segment Reporting Information [Line Items]        
Reorganization and Restructuring (0.2) (0.1) (0.7) (1.5)
Acquisitions and dispositions (25.8) (14.8) (44.3) (30.7)
Transformation initiatives costs (5.4) (7.2) (10.5) (12.0)
Other items not allocated to segments | DOJ/FinCEN Investigation        
Segment Reporting Information [Line Items]        
Loss contingencies (0.9) (6.0) (1.8) (6.0)
Other items not allocated to segments | Chile Antitrust Matter        
Segment Reporting Information [Line Items]        
Loss contingencies (0.2) (0.1) (0.4) (0.5)
Other items not allocated to segments | Argentina        
Segment Reporting Information [Line Items]        
Argentina highly inflationary impact $ 1.9 $ (11.4) $ (4.4) $ (13.0)