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v3.19.1

Retirement Benefits (Tables) | 12 Months Ended
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Dec. 31, 2018
Text block [abstract] |
Summary of Retirement Benefits |
|  | RETIREMENT BENEFITS |  |  |  |  |  |  |  |  |  |  |  |
|  | All employees are members of various defined contribution retirement schemes. |  |  |  |  |  |  |  |  |  |  |  |
|  | Contributions to the various retirement schemes are fully expensed during the period in which they are incurred. |  |  |  |  |  |  |  |  |  |  |  |
|  | Retirement benefit costs |  |  | 32.8 |  |  |  | 33.7 |  |  |  | 30.0 |

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