 | ssmt-mpers:GainsFromDisposalOfSubsidiaries | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200x |
 | ssmt-mpers:GainsFromDisposalOfAssociates | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200x |
 | ssmt-mpers:GainsFromDisposalOfJointVentures | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200x |
 | ssmt-mpers:GainsOnDisposalOfSubsidiaryJointVenturesAndAssociates | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200x |
 | ssmt-mpers:GainsFromDisposalOfSubsidiaries | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200y |
 | ssmt-mpers:GainsFromDisposalOfAssociates | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200y |
 | ssmt-mpers:GainsFromDisposalOfJointVentures | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200y |
 | ssmt-mpers:GainsOnDisposalOfSubsidiaryJointVenturesAndAssociates | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200y |
 | ssmt-mpers:GainsFromDisposalOfSubsidiaries | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-310100 |
 | ssmt-mpers:GainsFromDisposalOfAssociates | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-310100 |
 | ssmt-mpers:GainsFromDisposalOfJointVentures | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-310100 |
 | ssmt-mpers:GainsOnDisposalOfSubsidiaryJointVenturesAndAssociates | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-310100 |
 | ssmt-mpers:GainsFromDisposalOfSubsidiaries | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-320100 |
 | ssmt-mpers:GainsFromDisposalOfAssociates | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-320100 |
 | ssmt-mpers:GainsFromDisposalOfJointVentures | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-320100 |
 | ssmt-mpers:GainsOnDisposalOfSubsidiaryJointVenturesAndAssociates | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-320100 |