| Defined benefit obligation, at present value | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Defined benefit obligation, at present value | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| The present value, without deducting any plan assets, of expected future payments required to settle the obligation resulting from employee service in the current and prior periods. [Refer: Plan assets, at fair value] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Obbligu ta’ benefiċċju definit, fuq il-bażi tal-valur preżenti | mt | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Il-valur preżenti, mingħajr ma jitnaqqsu kwalunkwe assi tal-pjan, tal-pagamenti futuri mistennija meħtieġa sabiex jissaldaw l-obbligu li jirriżulta mis-servizz tal-impjegati fil-perjodi kurrenti u preċedenti. [Refer: Assi tal-pjan, bil-valur ġust] | mt | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Obbligu ta’ benefiċċju definit, fuq il-bażi tal-valur preżenti | mt | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |