| Explanation of significant terms of service concession arrangement that may affect amount, timing and certainty of future cash flows | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| The explanation of significant terms of service concession arrangements that may affect the amount, timing and certainty of future cash flows (for example, the period of the concession, re-pricing dates and the basis upon which re-pricing or re-negotiation is determined). [Refer: Service concession arrangements [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Míniú ar théarmaí suntasacha i socrú maidir le lamháltas seirbhíse a d’fhéadfadh difear a dhéanamh do mhéid, uainiú agus cinnteacht na sreafaí airgid todhchaí | ga | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Míniú ar théarmaí suntasacha i socrú maidir le lamháltas seirbhíse a d’fhéadfadh difear a dhéanamh do mhéid, uainiú agus cinnteacht na sreafaí airgid todhchaí (mar shampla, tréimhse an lamháltais, dátaí athphraghsála agus an bonn ar a gcinntear an athphraghsáil nó an ath‑idirbheartaíocht). [Féach: Socruithe maidir le lamháltas seirbhíse [member]] | ga | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |