| De inkomende kasstromen uit verhuur met betrekking tot operationele activiteiten. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Mietquittungen (aus operativen Tätigkeiten) | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Rental received (from operating activities) | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Reçus de location (des activités opérationnelles) | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Huurontvangsten (uit operationele activiteiten) | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Mietquittungen | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Rental received | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Reçus de location | fr | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Huurontvangsten | nl | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Total of rental received | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Totaal van huurontvangsten | nl | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |