Segment information - Revenue And Operating Profits (Details) - USD ($) $ in Millions |
3 Months Ended |
Mar. 31, 2018 |
Mar. 31, 2017 |
| Segment Reporting Information [Line Items] |
|
|
| Revenues |
$ 879.1
|
$ 788.4
|
| Operating Profit |
64.8
|
70.9
|
| Foreign currency transaction gains |
2.8
|
(0.3)
|
| Reportable segments |
|
|
| Segment Reporting Information [Line Items] |
|
|
| Revenues |
853.3
|
740.3
|
| Operating Profit |
101.8
|
74.8
|
| Corporate expenses |
|
|
| Segment Reporting Information [Line Items] |
|
|
| General, administrative and other expenses |
(31.1)
|
(19.2)
|
| Foreign currency transaction gains |
(0.5)
|
(1.2)
|
| Reconciliation of segment policies to GAAP |
1.3
|
(0.9)
|
| Other items not allocated to segments |
|
|
| Segment Reporting Information [Line Items] |
|
|
| Acquisitions and dispositions, Revenues |
0.0
|
0.0
|
| Reorganization and Restructuring |
(3.7)
|
(4.1)
|
| Acquisitions and dispositions, Operating profit |
(6.5)
|
0.4
|
| Other items not allocated to segments | Venezuela operations |
|
|
| Segment Reporting Information [Line Items] |
|
|
| Revenues |
25.8
|
48.1
|
| Operating Profit |
3.5
|
21.1
|
| North America | Reportable segments |
|
|
| Segment Reporting Information [Line Items] |
|
|
| Revenues |
320.1
|
304.6
|
| Operating Profit |
20.6
|
10.2
|
| South America | Reportable segments |
|
|
| Segment Reporting Information [Line Items] |
|
|
| Revenues |
254.8
|
202.2
|
| Operating Profit |
55.6
|
39.2
|
| Rest of World | Reportable segments |
|
|
| Segment Reporting Information [Line Items] |
|
|
| Revenues |
278.4
|
233.5
|
| Operating Profit |
$ 25.6
|
$ 25.4
|