| De criteria voor de opname en waardering van latente belastingvorderingen (langlopend) in de balans. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Grundlage der latenten Steuerforderungen (langfristig) | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Policy of non-current deferred tax assets | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Base des créances fiscales latentes (à long terme) | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Grondslag van langlopende latente belastingvorderingen | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Grundlage von passiven latenten Steuern | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Policy of deferred tax assets | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Base des créances fiscales latentes | fr | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Grondslag van latente belastingvorderingen | nl | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |