| Accumulated other comprehensive income | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total accumulated other comprehensive income | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The amount of accumulated items of income and expense (including reclassification adjustments) that are not recognised in profit or loss as required or permitted by other IFRSs. [Refer: IFRSs [member]; Other comprehensive income] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Ioncam cuimsitheach carntha eile | ga | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| An méid míreanna ioncaim agus speansais atá carntha (lena n‑áirítear coigeartuithe athaicmiúcháin) nach n‑aithnítear i mbrabús ná i gcaillteanas mar a cheanglaítear nó mar a cheadaítear le IFRSanna eile. [Féach: IFRSs [member]; Ioncam cuimsitheach eile] | ga | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Ioncam cuimsitheach eile carntha iomlán | ga | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |