| Decrease (increase) in net defined benefit liability (asset) resulting from resulting from contributions to plan by employer | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Increase (decrease) in net defined benefit liability (asset) resulting from contributions to plan by employer | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| The decrease (increase) in net defined benefit liability (asset) resulting from contributions to a defined benefit plan by the employer. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Laghdú (méadú) ar ghlandliteanas sochair shainithe (sócmhainn) a leanann as ranníocaíochtaí le plean ó fhostóir | ga | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Laghdú (méadú) ar ghlandliteanas sochair shainithe (sócmhainn) a leanann as ranníocaíochtaí le plean ón bhfostóir. [Féach: Glandliteanas sochair shainithe (sócmhainn); Pleananna sochair shainithe [member]] | ga | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Méadú (laghdú) ar ghlandliteanas sochair shainithe (sócmhainn) a leanann as ranníocaíochtaí le plean ó fhostóir | ga | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |