| Increase (decrease) in reimbursement rights related to defined benefit obligation, at fair value | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total increase (decrease) in reimbursement rights related to defined benefit obligation, at fair value | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The increase (decrease) in the fair value of reimbursement rights related to defined benefit obligation. [Refer: At fair value [member]; Reimbursement rights related to defined benefit obligation, at fair value] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Méadú (laghdú) ar chearta aisíocaíochta a bhaineann le hoibleagáid sochair shainithe, ag luach cóir | ga | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| An méadú (laghdú) ar an luach cóir ar chearta aisíocaíochta a bhaineann le hoibleagáid sochair shainithe. [Féach: Ag luach cóir [member]; Cearta aisíocaíochta a bhaineann le hoibleagáid sochair shainithe, ag luach cóir] | ga | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Méadú (laghdú) iomlán ar chearta aisíocaíochta a bhaineann le hoibleagáid sochair shainithe, ag luach cóir | ga | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |