| The gains (losses) including exchange differences recognised in other comprehensive income on the fair value measurement of the entity's own equity instruments. [Refer: At fair value [member]; Other comprehensive income] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Gains (losses) recognised in other comprehensive income including exchange differences, fair value measurement, entity's own equity instruments | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total losses (gains) recognised in other comprehensive income including exchange differences, fair value measurement, entity's own equity instruments | en | http://www.xbrl.org/2009/role/negatedTotalLabel | http://www.xbrl.org/2003/role/link |