| Current portion of unsecured bonds/sukuk/loan stocks | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Represents the amount of current portion of unsecured bonds, sukuk and loan stock. | en | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-mpers-cor_2017-12-31/ReportingDocumentation | http://www.xbrl.org/2003/role/link |
| Represents the amount of current portion of unsecured bonds, sukuk and loan stock. | en | http://xbrl.ssm.com.my/role/ssm/fs/mpers/lab_rol_ssmt-fs-mpers_2017-12-31/ReportingDocumentation | http://www.xbrl.org/2003/role/link |
| Total current portion of unsecured bonds/sukuk/loan stocks | en | http://xbrl.ssm.com.my/role/ssm/fs/mpers/lab_rol_ssmt-fs-mpers_2017-12-31/ReportingTotalLabel | http://www.xbrl.org/2003/role/link |