| Risk free interest rate, share options granted | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Rata tal-imgħax mingħajr riskji, opzjonijiet fuq l-ishma mogħtija | mt | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Ir-rendiment implikat attwalment disponibbli fuq bonds bla kupun tal-gvern tal-pajjiż li fil-munita tiegħu jiġi espress il-prezz tal-eżerċitar għall-opzjonijiet fuq l-ishma mogħtija, b’terminu li jifdal ugwali għat-terminu mistenni tal-opzjoni li tkun qiegħda tiġi vvalutata (fuq il-bażi tal-ħajja kuntrattwali li jifdallha l-opzjoni u wara li jitqiesu l-effetti tal-eżerċizzju bikri mistenni). [Refer: Gvern [member]] | mt | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |