| Depreciation, investment property at cost less accumulated depreciation and impairment | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Depreciation, investment property at cost less accumulated depreciation and impairment | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| The amount of depreciation of investment property at cost less accumulated depreciation and impairment. [Refer: Depreciation and amortisation expense; Investment property [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |