| The nationality of each supervisory board member is stated in the report of the supervisory board. | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Van elke commissaris wordt in het verslag van de raad van commissarissen opgave gedaan van de nationaliteit. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Nationalität des Aufsichtsratsmitglieds | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Nationality of supervisory director | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Nationalité du commissaire | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Nationaliteit van commissaris | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Nationalität | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Nationality | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Nationalité | fr | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Nationaliteit | nl | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |