| Level 3 of fair value hierarchy [member] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| This member stands for a category of the fair value hierarchy where inputs to the valuation techniques are unobservable inputs for the asset or liability. Unobservable inputs are inputs for which market data are not available and that are developed using the best information available about the assumptions that the market participants would use when pricing the asset or liability. | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Livell 3 tal-ġerarkija tal-valur ġust [member] | mt | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Dan il-membru jirrappreżenta kategorija tal-ġerarkija tal-valur ġust fejn l-inputs għat-tekniki tal-valwazzjoni huma inputs mhux osservabbli għall-assi jew għall-obbligazzjoni. Inputs mhux osservabbli huma inputs li għalihom ma jkunx hemm data tas-suq disponibbli u li jiġu żviluppati bl-użu tal-aħjar informazzjoni disponibbli dwar is-suppożizzjonijiet li jużaw il-parteċipanti fis-suq meta jipprezzaw l-assi jew l-obbligazzjoni. | mt | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |