| r0.c0 | RuleNode_2/Group [member] | | | | ifrs-full:ConsolidatedMember | N/A |
| r0.c1 | RuleNode_2/Company [member] | | | | ifrs-full:SeparateMember | N/A |
| r1.c0 | Analysis of income and expense [abstract]/Group [member] | ssmt-mfrs:AnalysisOfProfitOrLossAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r1.c1 | Analysis of income and expense [abstract]/Company [member] | ssmt-mfrs:AnalysisOfProfitOrLossAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r2.c0 | Revenue [abstract]/Group [member] | ifrs-full:RevenueAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r2.c1 | Revenue [abstract]/Company [member] | ifrs-full:RevenueAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r3.c0 | Revenue from sale of goods [abstract]/Group [member] | ssmt-mfrs:RevenueFromSaleOfGoodsAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r3.c1 | Revenue from sale of goods [abstract]/Company [member] | ssmt-mfrs:RevenueFromSaleOfGoodsAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r4.c0 | Revenue from sale of broadband and telecommunication/Group [member] | ifrs-full:RevenueFromSaleOfTelecommunicationEquipment | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c1 | Revenue from sale of broadband and telecommunication/Company [member] | ifrs-full:RevenueFromSaleOfTelecommunicationEquipment | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r5.c0 | Revenue from property development/Group [member] | ssmt-mfrs:RevenueFromSaleOfProperty | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c1 | Revenue from property development/Company [member] | ssmt-mfrs:RevenueFromSaleOfProperty | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r6.c0 | Revenue from construction contracts/Group [member] | ssmt-mfrs:RevenueFromSaleOfConstructionContracts | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c1 | Revenue from construction contracts/Company [member] | ssmt-mfrs:RevenueFromSaleOfConstructionContracts | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r7.c0 | Revenue from clean water, treatment and disposal of waste water/Group [member] | ssmt-mfrs:RevenueFromSaleOfCleanWaterTreatmentAndDisposalOfWasteWater | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c1 | Revenue from clean water, treatment and disposal of waste water/Company [member] | ssmt-mfrs:RevenueFromSaleOfCleanWaterTreatmentAndDisposalOfWasteWater | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r8.c0 | Revenue from sale of food and beverage/Group [member] | ifrs-full:RevenueFromSaleOfFoodAndBeverage | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r8.c1 | Revenue from sale of food and beverage/Company [member] | ifrs-full:RevenueFromSaleOfFoodAndBeverage | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r9.c0 | Revenue from sale of agricultural produce/Group [member] | ifrs-full:RevenueFromSaleOfAgriculturalProduce | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c1 | Revenue from sale of agricultural produce/Company [member] | ifrs-full:RevenueFromSaleOfAgriculturalProduce | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r10.c0 | Revenue from sale of oil and gas products/Group [member] | ifrs-full:RevenueFromSaleOfOilAndGasProducts | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r10.c1 | Revenue from sale of oil and gas products/Company [member] | ifrs-full:RevenueFromSaleOfOilAndGasProducts | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r11.c0 | Revenue from sale of other goods/Group [member] | ssmt-mfrs:RevenueFromSaleOfOtherGoods | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r11.c1 | Revenue from sale of other goods/Company [member] | ssmt-mfrs:RevenueFromSaleOfOtherGoods | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r12.c0 | Total revenue from sale of goods/Group [member] | ifrs-full:RevenueFromSaleOfGoods | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r12.c1 | Total revenue from sale of goods/Company [member] | ifrs-full:RevenueFromSaleOfGoods | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r13.c0 | Revenue from rendering of services [abstract]/Group [member] | ssmt-mfrs:RevenueFromRenderingOfServicesAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r13.c1 | Revenue from rendering of services [abstract]/Company [member] | ssmt-mfrs:RevenueFromRenderingOfServicesAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r14.c0 | Revenue from rendering of entertainment services/Group [member] | ssmt-mfrs:RevenueFromEntertainmentOperations | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r14.c1 | Revenue from rendering of entertainment services/Company [member] | ssmt-mfrs:RevenueFromEntertainmentOperations | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r15.c0 | Revenue from rendering of telecommunication services/Group [member] | ifrs-full:RevenueFromRenderingOfTelecommunicationServices | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r15.c1 | Revenue from rendering of telecommunication services/Company [member] | ifrs-full:RevenueFromRenderingOfTelecommunicationServices | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r16.c0 | Revenue from rendering of transportation services/Group [member] | ifrs-full:RevenueFromRenderingOfTransportServices | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r16.c1 | Revenue from rendering of transportation services/Company [member] | ifrs-full:RevenueFromRenderingOfTransportServices | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r17.c0 | Revenue from rendering of information technology services/Group [member] | ifrs-full:RevenueFromRenderingOfInformationTechnologyServices | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r17.c1 | Revenue from rendering of information technology services/Company [member] | ifrs-full:RevenueFromRenderingOfInformationTechnologyServices | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r18.c0 | Revenue from rendering of educational services/Group [member] | ssmt-mfrs:RevenueFromEducationalServices | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r18.c1 | Revenue from rendering of educational services/Company [member] | ssmt-mfrs:RevenueFromEducationalServices | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r19.c0 | Revenue from rendering of healthcare services/Group [member] | ssmt-mfrs:RevenueFromHealthcareServices | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r19.c1 | Revenue from rendering of healthcare services/Company [member] | ssmt-mfrs:RevenueFromHealthcareServices | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r20.c0 | Revenue from rendering of shipping and shipping related services/Group [member] | ifrs-full:RevenueFromRenderingOfCargoAndMailTransportServices | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r20.c1 | Revenue from rendering of shipping and shipping related services/Company [member] | ifrs-full:RevenueFromRenderingOfCargoAndMailTransportServices | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r21.c0 | Revenue from rendering of other services/Group [member] | ssmt-mfrs:RevenueFromRenderingOfOtherServices | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r21.c1 | Revenue from rendering of other services/Company [member] | ssmt-mfrs:RevenueFromRenderingOfOtherServices | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r22.c0 | Total revenue from rendering of services/Group [member] | ifrs-full:RevenueFromRenderingOfServices | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r22.c1 | Total revenue from rendering of services/Company [member] | ifrs-full:RevenueFromRenderingOfServices | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r23.c0 | Interest income [abstract]/Group [member] | ssmt-mfrs:InterestIncomeAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r23.c1 | Interest income [abstract]/Company [member] | ssmt-mfrs:InterestIncomeAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r24.c0 | Interest income on loans, advances and financing/Group [member] | ifrs-full:InterestIncomeOnLoansAndReceivables | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r24.c1 | Interest income on loans, advances and financing/Company [member] | ifrs-full:InterestIncomeOnLoansAndReceivables | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r25.c0 | Interest income on other financial assets/Group [member] | ifrs-full:InterestIncomeOnOtherFinancialAssets | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r25.c1 | Interest income on other financial assets/Company [member] | ifrs-full:InterestIncomeOnOtherFinancialAssets | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r26.c0 | Total interest income/Group [member] | ifrs-full:RevenueFromInterest | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r26.c1 | Total interest income/Company [member] | ifrs-full:RevenueFromInterest | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r27.c0 | Other fee and commission income [abstract]/Group [member] | ifrs-full:FeeAndCommissionIncomeAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r27.c1 | Other fee and commission income [abstract]/Company [member] | ifrs-full:FeeAndCommissionIncomeAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r28.c0 | Gross brokerage and other charges/Group [member] | ifrs-full:BrokerageFeeIncome | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r28.c1 | Gross brokerage and other charges/Company [member] | ifrs-full:BrokerageFeeIncome | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r29.c0 | Underwriting commissions and fund management income/Group [member] | ifrs-full:PortfolioAndOtherManagementFeeIncome | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r29.c1 | Underwriting commissions and fund management income/Company [member] | ifrs-full:PortfolioAndOtherManagementFeeIncome | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r30.c0 | Other fee and commission income/Group [member] | ifrs-full:OtherFeeAndCommissionIncome | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r30.c1 | Other fee and commission income/Company [member] | ifrs-full:OtherFeeAndCommissionIncome | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r31.c0 | Total other fee and commission income/Group [member] | ifrs-full:FeeAndCommissionIncome | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r31.c1 | Total other fee and commission income/Company [member] | ifrs-full:FeeAndCommissionIncome | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r32.c0 | Dividend income/Group [member] | ifrs-full:RevenueFromDividends | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r32.c1 | Dividend income/Company [member] | ifrs-full:RevenueFromDividends | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r33.c0 | Rental income/Group [member] | ifrs-full:RentalIncome | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r33.c1 | Rental income/Company [member] | ifrs-full:RentalIncome | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r34.c0 | Royalty income/Group [member] | ifrs-full:RevenueFromRoyalties | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r34.c1 | Royalty income/Company [member] | ifrs-full:RevenueFromRoyalties | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r35.c0 | Other revenue/Group [member] | ifrs-full:OtherRevenue | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r35.c1 | Other revenue/Company [member] | ifrs-full:OtherRevenue | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r36.c0 | Total revenue/Group [member] | ifrs-full:Revenue | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r36.c1 | Total revenue/Company [member] | ifrs-full:Revenue | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |