 | ifrs-smes:LongtermWarrantyProvision | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-200200x |
 | ifrs-smes:LongtermRestructuringProvision | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-200200x |
 | ifrs-smes:LongtermLegalProceedingsProvision | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-200200x |
 | ifrs-smes:LongtermOnerousContractsProvision | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-200200x |
 | ssmt-mpers:LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-200200x |
 | ifrs-smes:LongtermMiscellaneousOtherProvisions | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-200200x |
 | ifrs-smes:NoncurrentProvisions | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-200200x |
 | ifrs-smes:LongtermWarrantyProvision | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-210100 |
 | ifrs-smes:LongtermRestructuringProvision | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-210100 |
 | ifrs-smes:LongtermLegalProceedingsProvision | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-210100 |
 | ifrs-smes:LongtermOnerousContractsProvision | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-210100 |
 | ssmt-mpers:LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-210100 |
 | ifrs-smes:LongtermMiscellaneousOtherProvisions | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-210100 |
 | ifrs-smes:NoncurrentProvisions | domain-member | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-210100 |