| Terreinen en gebouwen in exploitatie. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Immobilien in Verwertung | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Real estate in exploitation | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Immeuble en exploitation | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Vastgoed in exploitatie | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Immobilien in Verwertung am Ende der Periode | de | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |
| Real estate in exploitation at the end of the period | en | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |
| Immeuble en fin d'exercice | fr | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |
| Vastgoed in exploitatie aan het einde van de periode | nl | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |
| Immobilien in Verwertung zu Beginn der Periode | de | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Real estate in exploitation at the beginning of the period | en | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Immeuble en exploitation en fin d'exercice | fr | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Vastgoed in exploitatie aan het begin van de periode | nl | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |