| Additions other than through business combinations, investment property | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total additions other than through business combinations, investment property | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The amount of additions to investment property other than those acquired through business combinations. [Refer: Business combinations [member]; Investment property] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |