| Reimbursement rights, at fair value | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Reimbursement rights, at fair value at beginning of period | en | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Reimbursement rights, at fair value at end of period | en | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |
| The amount of the entity's rights to the reimbursement by another party of some or all of the expenditure required to settle a defined benefit obligation recognised as a separate asset and measured at fair value. [Refer: At fair value [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Diritti a ricevere un indennizzo, al fair value (valore equo) | it | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| L'ammontare dei diritti dell'entità a ricevere un indennizzo da altro soggetto per alcuni o tutti i costi necessari per estinguere un'obbligazione per benefici definiti riconosciuta come attività distinta e valutata al fair value (valore equo). [Rif: Al fair value (valore equo) [member]] | it | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
Index