| Intangible assets and goodwill | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total intangible assets and goodwill | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Intangible assets and goodwill at beginning of period | en | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Intangible assets and goodwill at end of period | en | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |
| The amount of intangible assets and goodwill held by the entity. [Refer: Goodwill; Intangible assets other than goodwill] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Activos intangibles y plusvalía | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total activos intangibles y plusvalía | es | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Activos intangibles y plusvalía al comienzo del periodo | es | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Activos intangibles y plusvalía al final del periodo | es | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |