| Concept |
As at 2017-12-31 |
As at 2017-12-31 |
As at 2016-12-31 |
As at 2016-12-31 |
As at 2015-12-31 |
As at 2015-12-31 |
|---|---|---|---|---|---|---|
| Employees | ||||||
| Information about group | ||||||
| Number of employees of group | ||||||
| Number of employees |
39
xbrli:pure
|
2,162
xbrli:pure
|
32
xbrli:pure
|
1,610
xbrli:pure
|
31
xbrli:pure
|
1,542
xbrli:pure
|