| De verwaterde winst of verlies per aandeel. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Verwässertes Ergebnis je Aktie | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Diluted earnings per share | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Bénéfice dilué par action | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Verwaterde winst per aandeel | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Verwässert | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Diluted | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Dilué | fr | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Verwaterd | nl | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |