| Overige passiva: Specificatie: Voorgaande periode | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Equity and liabilities other: Equity and liabilities otherSpecification: Previous period | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Equity and liabilities other: Specification: Previous period | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Overige passiva: Overige passivaSpecificatie: Voorgaande periode | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |