| Concept |
As at 2018-12-31 |
As at 2018-12-31 |
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 |
As at 2014-12-31 |
As at 2014-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Employees | ||||||||||
| Information about group | ||||||||||
| Number of employees of group | ||||||||||
| Number of employees |
361
xbrli:pure
|
xbrli:pure
|
354
xbrli:pure
|
xbrli:pure
|
342
xbrli:pure
|
343
xbrli:pure
|
334
xbrli:pure
|
335
xbrli:pure
|
320
xbrli:pure
|
321
xbrli:pure
|
| Average number of temporary employees |
75
xbrli:pure
|
xbrli:pure
|
93
xbrli:pure
|
xbrli:pure
|
99
xbrli:pure
|
99
xbrli:pure
|
97
xbrli:pure
|
97
xbrli:pure
|
98
xbrli:pure
|
98
xbrli:pure
|