| Tangible exploration and evaluation assets [member] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| This member stands for a class of property, plant and equipment representing tangible exploration and evaluation assets. [Refer: Exploration and evaluation assets [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Uurimis- ja hindamistegevusega seotud materiaalne vara [member] | et | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| See liige kajastab sellise materiaalse põhivara klassi, mis on uurimis- ja hindamistegevusega seotud materiaalne vara. [Viide: uurimis- ja hindamistegevusega seotud varad [member]] | et | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |