| In de verslagperiode ontvangen uitkeringen die personeelslasten verminderen | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Payments received reducing personnel expenses | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Uitkeringen die personeelslasten verminderen | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Payments received | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Uitkeringen | nl | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Total of payments received reducing personnel expenses | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Totaal van uitkeringen die personeelslasten verminderen | nl | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |