| Vastgoedbeleggingen in exploitatie. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Renditeliegenschaften in Betrieb | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Investment properties in operation | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Immeubles de placement en exploitation | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Vastgoedbeleggingen in exploitatie | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Renditeliegenschaften in Betrieb am Ende der Periode | de | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |
| Investment properties in operation at the end of the period | en | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |
| Immeubles de placement en exploitation à la fin de la période | fr | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |
| Vastgoedbeleggingen in exploitatie aan het einde van de periode | nl | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |
| Renditeliegenschaften in Betrieb zu Beginn der Periode | de | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Investment properties in operation at the beginning of the period | en | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Immeubles de placement en exploitation au début de la période | fr | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Vastgoedbeleggingen in exploitatie aan het begin van de periode | nl | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |