| r0.c0 | RuleNode_7/Group [member] | | | | ifrs-full:ConsolidatedMember | N/A |
| r0.c1 | RuleNode_7/Company [member] | | | | ifrs-full:SeparateMember | N/A |
| r1.c0 | Retained earnings [abstract]/Group [member] | ssmt-mfrs:DisclosureOfRetainedEarningsAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r1.c1 | Retained earnings [abstract]/Company [member] | ssmt-mfrs:DisclosureOfRetainedEarningsAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r2.c0 | Total retained earnings of Company and its subsidiaries [abstract]/Group [member] | ssmt-mfrs:RetainedEarningsOfCompanyAndItsSubsidiariesAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r2.c1 | Total retained earnings of Company and its subsidiaries [abstract]/Company [member] | ssmt-mfrs:RetainedEarningsOfCompanyAndItsSubsidiariesAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r3.c0 | Realised/Group [member] | ssmt-mfrs:RealisedRetainedEarningsOfCompanyAndSubsidiaries | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c1 | Realised/Company [member] | ssmt-mfrs:RealisedRetainedEarningsOfCompanyAndSubsidiaries | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r4.c0 | Unrealised/Group [member] | ssmt-mfrs:UnrealisedRetailedEarningsOfCompanyAndSubsidiaries | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c1 | Unrealised/Company [member] | ssmt-mfrs:UnrealisedRetailedEarningsOfCompanyAndSubsidiaries | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r5.c0 | Retained earnings of associates [abstract]/Group [member] | ssmt-mfrs:RetainedEarningsOfAssociatesAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r5.c1 | Retained earnings of associates [abstract]/Company [member] | ssmt-mfrs:RetainedEarningsOfAssociatesAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r6.c0 | Realised/Group [member] | ssmt-mfrs:RealisedRetailedEarningsOfAssociates | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c1 | Realised/Company [member] | ssmt-mfrs:RealisedRetailedEarningsOfAssociates | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r7.c0 | Unrealised/Group [member] | ssmt-mfrs:UnrealisedRetailedEarningsOfAssociates | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c1 | Unrealised/Company [member] | ssmt-mfrs:UnrealisedRetailedEarningsOfAssociates | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r8.c0 | Retained earnings of joint ventures [abstract]/Group [member] | ssmt-mfrs:RetainedEarningsOfJointVenturesAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r8.c1 | Retained earnings of joint ventures [abstract]/Company [member] | ssmt-mfrs:RetainedEarningsOfJointVenturesAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r9.c0 | Realised/Group [member] | ssmt-mfrs:RealisedRetailedEarningsOfJointVentures | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c1 | Realised/Company [member] | ssmt-mfrs:RealisedRetailedEarningsOfJointVentures | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r10.c0 | Unrealised/Group [member] | ssmt-mfrs:UnrealisedRetailedEarningsOfJointVentures | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r10.c1 | Unrealised/Company [member] | ssmt-mfrs:UnrealisedRetailedEarningsOfJointVentures | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r11.c0 | Total retained earnings of the company, its subsidiaries, associates and joint ventures/Group [member] | ssmt-mfrs:RetainedEarningsOfSubsidiariesAssociatesJointVenturesGross | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r11.c1 | Total retained earnings of the company, its subsidiaries, associates and joint ventures/Company [member] | ssmt-mfrs:RetainedEarningsOfSubsidiariesAssociatesJointVenturesGross | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r12.c0 | Retained earnings others/Group [member] | ssmt-mfrs:RetainedEarningsOthers | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r12.c1 | Retained earnings others/Company [member] | ssmt-mfrs:RetainedEarningsOthers | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r13.c0 | Less: Consolidation adjustments/Group [member] | ssmt-mfrs:ConsolidationAdjustmentsOfRetainedEarningsOfSubsidiariesAssociatesJointVentures | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r13.c1 | Less: Consolidation adjustments/Company [member] | ssmt-mfrs:ConsolidationAdjustmentsOfRetainedEarningsOfSubsidiariesAssociatesJointVentures | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r14.c0 | Total retained earnings/Group [member] | ifrs-full:RetainedEarnings | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r14.c1 | Total retained earnings/Company [member] | ifrs-full:RetainedEarnings | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |