| Bruto uitgaven minus ontvangen investeringssubsidies in het jaar van betaling voor nieuw te bouwen bezit. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Neubau Miete | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| New buildings rent | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Nouvelle construction à louer | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Nieuwbouw huur | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Neubau Miete | de | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| New buildings rent | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| Nouvelle construction à louer | fr | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| Nieuwbouw huur | nl | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |