| Betrag an Aktiva und Passiva in fremden Geldeinheiten [Titel] | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Amount of assets and liabilities kept in foreign currencies [title] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Montant des actifs et passifs libellés en devises [titre] | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Bedrag aan activa en passiva in vreemde geldeenheden [titel] | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Betrag an Aktiva und Passiva in fremden Geldeinheiten | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Amount of assets and liabilities kept in foreign currencies | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Montant des actifs et passifs libellés en devises | fr | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Bedrag aan activa en passiva in vreemde geldeenheden | nl | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Betrag an Aktiva und Passiva in fremden Geldeinheiten | de | http://www.xbrl.org/2008/role/terseLabel | http://www.xbrl.org/2008/role/link |
| Amount of assets and liabilities kept in foreign currencies | en | http://www.xbrl.org/2008/role/terseLabel | http://www.xbrl.org/2008/role/link |
| Montant des actifs et passifs libellés en devises | fr | http://www.xbrl.org/2008/role/terseLabel | http://www.xbrl.org/2008/role/link |
| Bedrag aan activa en passiva in vreemde geldeenheden | nl | http://www.xbrl.org/2008/role/terseLabel | http://www.xbrl.org/2008/role/link |