| Bruto verbeteruitgaven minus ontvangen eenmalige investeringssubsidies in het jaar van betalingen andere vormen van tussentijdse investeringen aan bezit in exploitatie. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Verbesserungen | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Accommodation improvements | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Améliorations | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Verbeteruitgaven | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Verbesserungen | de | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| Accommodation improvements | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| Améliorations | fr | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| Verbeteruitgaven | nl | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |