| Financial forecast of profit or loss for cash-generating unit, significant unobservable inputs, entity's own equity instruments | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Concept not required as a result of common practice review of IFRS 13 Fair Value Measurement | en | http://www.xbrl.org/2009/role/deprecatedLabel | http://www.xbrl.org/2003/role/link |
| 2019-01-01 | en | http://www.xbrl.org/2009/role/deprecatedDateLabel | http://www.xbrl.org/2003/role/link |
| A financial forecast of profit or loss for a cash-generating unit developed using the entity's own data if there is no reasonably available information that indicates that market participants would use different assumptions. This is used as a significant Level 3 unobservable input for entity's own equity instruments. [Refer: Level 3 of fair value hierarchy [member]; Cash-generating units [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |