| Option contract [member] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| This member stands for a derivative financial instrument that gives the holder the right, but not the obligation, to purchase or sell an underlying asset for a specified price determined in advance. [Refer: Derivatives [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Conradh céadrogha [member] | ga | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Seasann an ball seo d’ionstraim airgeadais dhíorthach lena dtugtar an ceart don sealbhóir ainm fearainn, ach nach gcuirtear oibleagáid air léi, sócmhainn fholuiteach a cheannach ar phraghas sonraithe a chinntear roimh ré. [Féach: Díorthaigh [member]] | ga | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |