| Trade and other current receivables | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Trade and other current receivables | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total trade and other current receivables | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Total trade and other current receivables | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The amount of current trade receivables and current other receivables. [Refer: Current trade receivables; Other current receivables] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Cuentas comerciales por cobrar y otras cuentas por cobrar corrientes | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total cuentas comerciales por cobrar y otras cuentas por cobrar corrientes | es | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Deudores comerciales y otras cuentas por cobrar corrientes | es | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Total deudores comerciales y otras cuentas por cobrar corrientes | es | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| Trade and other current receivables | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Total trade and other current receivables | en | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |