| Range of estimates within which fair value is likely to lie for investment property, at cost within fair value model | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Concept not required as it has an expiry date of 01-01-2019 | 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 |
| The range of estimates within which fair value is highly likely to lie for investment property when the entity measures investment property at cost within the fair value model, because fair value is not reliably determinable on a continuing basis. [Refer: At cost within fair value model [member]; Investment property] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |