| Name | StatementOfCashFlowsTable |
|---|---|
| Namespace | http://xbrl.ssm.com.my/taxonomy/2017-12-31/ssmt-cor |
| Prefix | ssmt |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrldt:hypercubeItem |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Statement of cash flows [table] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Schedule disclosing information related to cash flows. | en | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-cor_2017-12-31/ReportingDocumentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| Name | Common practice | http://www.xbrl.org/2003/role/disclosureRef |
| Number | http://www.xbrl.org/2003/role/disclosureRef | |
| Section | http://www.xbrl.org/2003/role/disclosureRef | |
| Subsection | http://www.xbrl.org/2003/role/disclosureRef | |
| Paragraph | http://www.xbrl.org/2003/role/disclosureRef | |
| IssueDate | http://www.xbrl.org/2003/role/disclosureRef | |
| Subparagraph | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Relation Type | Role | |
|---|---|---|---|
ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-kfi-fc_2017-12-31/ssmt-kfi-fc_2017-12-31_role-410000 | |
ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis | hypercube-dimension | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-kfi-fc_2017-12-31/ssmt-kfi-fc_2017-12-31_role-410000 |
| Name | Relation Type | Role | |
|---|---|---|---|
ssmt:DetailsOfCashFlowsAbstract | parent-child | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-kfi-fc_2017-12-31/ssmt-kfi-fc_2017-12-31_role-410000 | |
ssmt:DetailsOfCashFlowsAbstract | all | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-kfi-fc_2017-12-31/ssmt-kfi-fc_2017-12-31_role-410000 |