| De wijzigingen in de boekwaarde van de beleggingen. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Mutationen von Kapitalanlagen | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Movement of investments | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Mouvement des placements | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Mutatie van beleggingen | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Gesamtbetrag der mutationen von Kapitalanlagen | de | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Total of movements during the period | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Total des mouvements pendant la période | fr | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Totaal van mutaties gedurende de periode | nl | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |