| 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 |
As at 2014-12-31 |
As at 2014-12-31 |
As at 2013-12-31 |
As at 2013-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Employees | ||||||||||
| Information about group | ||||||||||
| Number of employees of group | ||||||||||
| Number of employees |
106
xbrli:pure
|
123
xbrli:pure
|
96
xbrli:pure
|
110
xbrli:pure
|
94
xbrli:pure
|
107
xbrli:pure
|
97
xbrli:pure
|
105
xbrli:pure
|
87
xbrli:pure
|
93
xbrli:pure
|
| Average number of temporary employees |
7
xbrli:pure
|
34
xbrli:pure
|
9
xbrli:pure
|
37
xbrli:pure
|
27
xbrli:pure
|
30
xbrli:pure
|
22
xbrli:pure
|
24
xbrli:pure
|
22
xbrli:pure
|
24
xbrli:pure
|