| Explanation of general nature of dispute and of reason for non-disclosure of information regarding contingent asset | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| The explanation of the general nature of the dispute with other parties on the subject matter of a contingent asset and the fact and reason why required information relating to a possible asset that arises from past events and whose existence will be confirmed only by the occurrence or non-occurrence of one or more uncertain future events not wholly within control of the entity is not disclosed. | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Explicación de la naturaleza general del conflicto y de la razón para no revelar información con respecto a activos contingentes | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |