| Name | IssuedCapital |
|---|---|
| Namespace | http://xbrl.ifrs.org/taxonomy/2017-03-09/ifrs-full |
| Prefix | ifrs-full |
| Data type | xbrli:monetaryItemType |
| Period type | instant |
| Substitution Group | xbrli:item |
| Balance | credit |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Issued capital | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| The nominal value of capital issued. | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Total issued capital | en | http://xbrl.ssm.com.my/role/ssm/fs/mfrs/lab_rol_ssmt-fs-mfrs_2017-12-31/ReportingTotalLabel | http://www.xbrl.org/2003/role/link |
| Report the value, as at the reporting date, the aggregate of ordinary share capital issued. An ordinary share is an equity instrument that is subordinate to all other classes of equity instruments. | en | http://xbrl.ssm.com.my/role/ssm/fs/mfrs/lab_rol_ssmt-fs-mfrs_2017-12-31/ReportingDocumentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| Name | MFRS | http://www.xbrl.org/2003/role/disclosureRef |
| Section | 101.54 | http://www.xbrl.org/2003/role/disclosureRef |
| Subsection | r | http://www.xbrl.org/2003/role/disclosureRef |
| Name | MFRS | http://www.xbrl.org/2003/role/disclosureRef |
| Section | 101.78 | http://www.xbrl.org/2003/role/disclosureRef |
| Subsection | e | http://www.xbrl.org/2003/role/disclosureRef |
| Name | MFRS | http://www.xbrl.org/2003/role/disclosureRef |
| Section | 101.54 | http://www.xbrl.org/2003/role/disclosureRef |
| Subsection | r | http://www.xbrl.org/2003/role/disclosureRef |
| Name | MFRS | http://www.xbrl.org/2003/role/disclosureRef |
| Section | 101.78 | http://www.xbrl.org/2003/role/disclosureRef |
| Subsection | e | http://www.xbrl.org/2003/role/disclosureRef |
| Name | MFRS | http://www.xbrl.org/2003/role/definitionRef |
| Section | 133.5 | http://www.xbrl.org/2003/role/definitionRef |
| Name | MFRS | http://www.xbrl.org/2003/role/definitionRef |
| Section | 133.5 | http://www.xbrl.org/2003/role/definitionRef |
| Name | IAS | http://www.xbrl.org/2003/role/exampleRef |
| Number | 1 | http://www.xbrl.org/2003/role/exampleRef |
| IssueDate | 2017-01-01 | http://www.xbrl.org/2003/role/exampleRef |
| Paragraph | 78 | http://www.xbrl.org/2003/role/exampleRef |
| Subparagraph | e | http://www.xbrl.org/2003/role/exampleRef |
| URI | http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_78_e&doctype=Standard | http://www.xbrl.org/2003/role/exampleRef |
| URIDate | 2017-03-09 | http://www.xbrl.org/2003/role/exampleRef |
| Name | Relation Type | Role | |
|---|---|---|---|
ssmt-mfrs:CapitalFromOrdinaryShares | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mfrs_2017-12-31/ssmt-fs-mfrs_2017-12-31_role-200200 | |
ssmt-mfrs:CapitalFromRedeemablePreferenceShares | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mfrs_2017-12-31/ssmt-fs-mfrs_2017-12-31_role-200200 | |
ssmt-mfrs:CapitalFromNonredeemablePreferenceShares | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mfrs_2017-12-31/ssmt-fs-mfrs_2017-12-31_role-200200 |