| Contingent liability for decommissioning, restoration and rehabilitation costs [member] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| This member stands for a contingent liability relating to decommissioning, restoration and rehabilitation costs. [Refer: Contingent liabilities [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Neapibrėžtasis įsipareigojimas, susijęs su veiklos nutraukimo, atnaujinimo ir aplinkos sutvarkymo išlaidoms [member] | lt | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Šis elementas rodo neapibrėžtąjį įsipareigojimą, susijusį su veiklos nutraukimo, atnaujinimo ir aplinkos sutvarkymo išlaidoms. [Žr. Neapibrėžtieji įsipareigojimai [member]] | lt | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |