| r0.c0 | RuleNode_2/Group [member] | | | | ifrs-full:ConsolidatedMember | N/A |
| r0.c1 | RuleNode_2/Company [member] | | | | ifrs-full:SeparateMember | N/A |
| r1.c0 | Statement of cash flows [abstract]/Group [member] | ifrs-full:StatementOfCashFlowsAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r1.c1 | Statement of cash flows [abstract]/Company [member] | ifrs-full:StatementOfCashFlowsAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r2.c0 | Cash flows from (used in) operating activities [abstract]/Group [member] | ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r2.c1 | Cash flows from (used in) operating activities [abstract]/Company [member] | ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r3.c0 | Receipts from sales of goods and rendering of services/Group [member] | ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c1 | Receipts from sales of goods and rendering of services/Company [member] | ifrs-full:ReceiptsFromSalesOfGoodsAndRenderingOfServices | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r4.c0 | Receipts from royalties, fees, commissions and other revenue/Group [member] | ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c1 | Receipts from royalties, fees, commissions and other revenue/Company [member] | ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r5.c0 | Receipts from contracts held for dealing or trading purposes/Group [member] | ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c1 | Receipts from contracts held for dealing or trading purposes/Company [member] | ifrs-full:ReceiptsFromContractsHeldForDealingOrTradingPurpose | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r6.c0 | Short-term lease payments, payments for leases of low-value assets and variable lease payments not included in the measurement of the lease liability/Group [member] | ssmt-mfrs:PaymentsForLeasesOfLowValueAssetsAndVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiability | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c1 | Short-term lease payments, payments for leases of low-value assets and variable lease payments not included in the measurement of the lease liability/Company [member] | ssmt-mfrs:PaymentsForLeasesOfLowValueAssetsAndVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiability | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r7.c0 | Payments to suppliers for goods and services/Group [member] | ifrs-full:PaymentsToSuppliersForGoodsAndServices | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c1 | Payments to suppliers for goods and services/Company [member] | ifrs-full:PaymentsToSuppliersForGoodsAndServices | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r8.c0 | Payments to and on behalf of employees/Group [member] | ifrs-full:PaymentsToAndOnBehalfOfEmployees | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r8.c1 | Payments to and on behalf of employees/Company [member] | ifrs-full:PaymentsToAndOnBehalfOfEmployees | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r9.c0 | Dividends received/Group [member] | ifrs-full:DividendsReceivedClassifiedAsOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c1 | Dividends received/Company [member] | ifrs-full:DividendsReceivedClassifiedAsOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r10.c0 | Dividends paid/Group [member] | ifrs-full:DividendsPaidClassifiedAsOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r10.c1 | Dividends paid/Company [member] | ifrs-full:DividendsPaidClassifiedAsOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r11.c0 | Interest received/Group [member] | ifrs-full:InterestReceivedClassifiedAsOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r11.c1 | Interest received/Company [member] | ifrs-full:InterestReceivedClassifiedAsOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r12.c0 | Interest paid/Group [member] | ifrs-full:InterestPaidClassifiedAsOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r12.c1 | Interest paid/Company [member] | ifrs-full:InterestPaidClassifiedAsOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r13.c0 | Income taxes refund (paid)/Group [member] | ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r13.c1 | Income taxes refund (paid)/Company [member] | ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r14.c0 | Other cash inflows (outflows) from operating activities/Group [member] | ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r14.c1 | Other cash inflows (outflows) from operating activities/Company [member] | ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r15.c0 | Net cash flows from (used in) operating activities/Group [member] | ifrs-full:CashFlowsFromUsedInOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r15.c1 | Net cash flows from (used in) operating activities/Company [member] | ifrs-full:CashFlowsFromUsedInOperatingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r16.c0 | Cash flows from (used in) investing activities [abstract]/Group [member] | ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r16.c1 | Cash flows from (used in) investing activities [abstract]/Company [member] | ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r17.c0 | Proceeds from disposal of subsidiaries/Group [member] | ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r17.c1 | Proceeds from disposal of subsidiaries/Company [member] | ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r18.c0 | Acquisition and subscription of shares in subsidiaries/Group [member] | ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r18.c1 | Acquisition and subscription of shares in subsidiaries/Company [member] | ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r19.c0 | Proceeds from disposal of associates/Group [member] | ifrs-full:ProceedsFromSalesOfInterestsInAssociates | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r19.c1 | Proceeds from disposal of associates/Company [member] | ifrs-full:ProceedsFromSalesOfInterestsInAssociates | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r20.c0 | Acquisition and subscription of shares in associates/Group [member] | ifrs-full:PurchaseOfInterestsInAssociates | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r20.c1 | Acquisition and subscription of shares in associates/Company [member] | ifrs-full:PurchaseOfInterestsInAssociates | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r21.c0 | Proceeds from disposal of joint ventures/Group [member] | ifrs-full:OtherCashReceiptsFromSalesOfInterestsInJointVenturesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r21.c1 | Proceeds from disposal of joint ventures/Company [member] | ifrs-full:OtherCashReceiptsFromSalesOfInterestsInJointVenturesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r22.c0 | Acquisition and subscription of shares in joint ventures/Group [member] | ifrs-full:OtherCashPaymentsToAcquireInterestsInJointVenturesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r22.c1 | Acquisition and subscription of shares in joint ventures/Company [member] | ifrs-full:OtherCashPaymentsToAcquireInterestsInJointVenturesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r23.c0 | Cash receipts from repayment of advances and loans made to other parties/Group [member] | ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r23.c1 | Cash receipts from repayment of advances and loans made to other parties/Company [member] | ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r24.c0 | Cash advances and loans made to other parties/Group [member] | ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r24.c1 | Cash advances and loans made to other parties/Company [member] | ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r25.c0 | Deposit placed with investment brokers/Group [member] | ssmt-mfrs:DepositPlacedWithInvestmentBrokers | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r25.c1 | Deposit placed with investment brokers/Company [member] | ssmt-mfrs:DepositPlacedWithInvestmentBrokers | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r26.c0 | Other cash payments to acquire equity or debt instruments of other entities/Group [member] | ifrs-full:OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r26.c1 | Other cash payments to acquire equity or debt instruments of other entities/Company [member] | ifrs-full:OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r27.c0 | Other cash receipts from sales of equity or debt instruments of other entities/Group [member] | ifrs-full:OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r27.c1 | Other cash receipts from sales of equity or debt instruments of other entities/Company [member] | ifrs-full:OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r28.c0 | Disposal of discontinued operation, proceeds from disposal, net of cash and cash equivalents disposed of/Group [member] | ssmt-mfrs:ProceedsFromDisposalOfNetCashAndCashEqivalentsDisposedOffFromDiscontinuingOperatrions | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r28.c1 | Disposal of discontinued operation, proceeds from disposal, net of cash and cash equivalents disposed of/Company [member] | ssmt-mfrs:ProceedsFromDisposalOfNetCashAndCashEqivalentsDisposedOffFromDiscontinuingOperatrions | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r29.c0 | Disposal of discontinued operation, tax paid on gain on disposal/Group [member] | ssmt-mfrs:TaxPaidOnGainOnDisposalFromDiscontinuingOperations | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r29.c1 | Disposal of discontinued operation, tax paid on gain on disposal/Company [member] | ssmt-mfrs:TaxPaidOnGainOnDisposalFromDiscontinuingOperations | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r30.c0 | Proceeds from government grants/Group [member] | ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r30.c1 | Proceeds from government grants/Company [member] | ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r31.c0 | Proceeds from sales of intangible assets/Group [member] | ifrs-full:ProceedsFromSalesOfIntangibleAssetsClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r31.c1 | Proceeds from sales of intangible assets/Company [member] | ifrs-full:ProceedsFromSalesOfIntangibleAssetsClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r32.c0 | Proceeds from sales of other non-current assets/Group [member] | ifrs-full:ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r32.c1 | Proceeds from sales of other non-current assets/Company [member] | ifrs-full:ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r33.c0 | Proceeds from sales of property, plant and equipment/Group [member] | ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r33.c1 | Proceeds from sales of property, plant and equipment/Company [member] | ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r34.c0 | Proceeds from sales of prepaid lease payments/Group [member] | ssmt-mfrs:ProceedsFromSaleOfPrepaidLeasePayments | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r34.c1 | Proceeds from sales of prepaid lease payments/Company [member] | ssmt-mfrs:ProceedsFromSaleOfPrepaidLeasePayments | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r35.c0 | Purchase of intangible assets/Group [member] | ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r35.c1 | Purchase of intangible assets/Company [member] | ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r36.c0 | Purchase of other non-current assets/Group [member] | ifrs-full:PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r36.c1 | Purchase of other non-current assets/Company [member] | ifrs-full:PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r37.c0 | Purchase of property, plant and equipment/Group [member] | ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r37.c1 | Purchase of property, plant and equipment/Company [member] | ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r38.c0 | Dividends received/Group [member] | ifrs-full:DividendsReceivedClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r38.c1 | Dividends received/Company [member] | ifrs-full:DividendsReceivedClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r39.c0 | Interest received/Group [member] | ifrs-full:InterestReceivedClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r39.c1 | Interest received/Company [member] | ifrs-full:InterestReceivedClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r40.c0 | Proceeds from sale of other investment/Group [member] | ifrs-full:ProceedsFromSalesOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r40.c1 | Proceeds from sale of other investment/Company [member] | ifrs-full:ProceedsFromSalesOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r41.c0 | Purchase of other investment/Group [member] | ifrs-full:PurchaseOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r41.c1 | Purchase of other investment/Company [member] | ifrs-full:PurchaseOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r42.c0 | Development expenditure incurred/Group [member] | ifrs-full:PaymentsForDevelopmentProjectExpenditure | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r42.c1 | Development expenditure incurred/Company [member] | ifrs-full:PaymentsForDevelopmentProjectExpenditure | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r43.c0 | Net repayment from joint ventures/Group [member] | ssmt-mfrs:NetRepaymentFromJointVentures | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r43.c1 | Net repayment from joint ventures/Company [member] | ssmt-mfrs:NetRepaymentFromJointVentures | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r44.c0 | Net repayment from associates/Group [member] | ssmt-mfrs:NetRepaymentFromAssociates | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r44.c1 | Net repayment from associates/Company [member] | ssmt-mfrs:NetRepaymentFromAssociates | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r45.c0 | Capital distributions from associates/Group [member] | ssmt-mfrs:CapitalDistributionsFromAssociates | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r45.c1 | Capital distributions from associates/Company [member] | ssmt-mfrs:CapitalDistributionsFromAssociates | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r46.c0 | Other cash inflows (outflows) from investing activities/Group [member] | ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r46.c1 | Other cash inflows (outflows) from investing activities/Company [member] | ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r47.c0 | Net cash flows from (used in) investing activities/Group [member] | ifrs-full:CashFlowsFromUsedInInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r47.c1 | Net cash flows from (used in) investing activities/Company [member] | ifrs-full:CashFlowsFromUsedInInvestingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r48.c0 | Cash flows from (used in) financing activities [abstract]/Group [member] | ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r48.c1 | Cash flows from (used in) financing activities [abstract]/Company [member] | ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r49.c0 | Cash payments for the principal portion of the lease liability/Group [member] | ssmt-mfrs:PaymentsForPrincipalPortionOfLeaseLiability | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r49.c1 | Cash payments for the principal portion of the lease liability/Company [member] | ssmt-mfrs:PaymentsForPrincipalPortionOfLeaseLiability | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r50.c0 | Cash payments for the interest portion of the lease liability/Group [member] | ssmt-mfrs:PaymentsForInterestPortionOfLeaseLiability | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r50.c1 | Cash payments for the interest portion of the lease liability/Company [member] | ssmt-mfrs:PaymentsForInterestPortionOfLeaseLiability | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r51.c0 | Proceeds from issuing shares/Group [member] | ifrs-full:ProceedsFromIssuingShares | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r51.c1 | Proceeds from issuing shares/Company [member] | ifrs-full:ProceedsFromIssuingShares | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r52.c0 | Proceeds from issue of shares in subsidiary to non-controlling interests/Group [member] | ssmt-mfrs:ProceedsFromIssueOfSharesInSubsidiaryToNoncontrollingInterests | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r52.c1 | Proceeds from issue of shares in subsidiary to non-controlling interests/Company [member] | ssmt-mfrs:ProceedsFromIssueOfSharesInSubsidiaryToNoncontrollingInterests | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r53.c0 | Proceeds from issuing other equity instruments/Group [member] | ifrs-full:ProceedsFromIssuingOtherEquityInstruments | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r53.c1 | Proceeds from issuing other equity instruments/Company [member] | ifrs-full:ProceedsFromIssuingOtherEquityInstruments | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r54.c0 | Proceeds from share-based compensation transactions/Group [member] | ifrs-full:ProceedsFromExerciseOfOptions | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r54.c1 | Proceeds from share-based compensation transactions/Company [member] | ifrs-full:ProceedsFromExerciseOfOptions | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r55.c0 | Payments to acquire or redeem entity's shares/Group [member] | ifrs-full:PaymentsToAcquireOrRedeemEntitysShares | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r55.c1 | Payments to acquire or redeem entity's shares/Company [member] | ifrs-full:PaymentsToAcquireOrRedeemEntitysShares | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r56.c0 | Acquisition of non-controlling interests/Group [member] | ssmt-mfrs:PaymentsMadeToAcquireNoncontrollingInterest | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r56.c1 | Acquisition of non-controlling interests/Company [member] | ssmt-mfrs:PaymentsMadeToAcquireNoncontrollingInterest | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r57.c0 | Payments of other equity instruments/Group [member] | ifrs-full:PaymentsOfOtherEquityInstruments | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r57.c1 | Payments of other equity instruments/Company [member] | ifrs-full:PaymentsOfOtherEquityInstruments | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r58.c0 | Perpetual sukuk issuance expenses/Group [member] | ssmt-mfrs:CashPaymentsForIssuanceOfPerpetualSukuk | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r58.c1 | Perpetual sukuk issuance expenses/Company [member] | ssmt-mfrs:CashPaymentsForIssuanceOfPerpetualSukuk | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r59.c0 | Proceeds from issuing debentures, loans, notes, bonds, mortgages and other short-term and long-term borrowings/Group [member] | ifrs-full:ProceedsFromIssueOfBondsNotesAndDebentures | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r59.c1 | Proceeds from issuing debentures, loans, notes, bonds, mortgages and other short-term and long-term borrowings/Company [member] | ifrs-full:ProceedsFromIssueOfBondsNotesAndDebentures | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r60.c0 | Repayments of borrowings/Group [member] | ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r60.c1 | Repayments of borrowings/Company [member] | ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r61.c0 | Repurchase of treasury shares/Group [member] | ssmt-mfrs:RepurchaseOfTreasuryShares | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r61.c1 | Repurchase of treasury shares/Company [member] | ssmt-mfrs:RepurchaseOfTreasuryShares | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r62.c0 | Withdrawal(Placement) of bank deposits/Group [member] | ssmt-mfrs:WithdrawalOfBankDeposits | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r62.c1 | Withdrawal(Placement) of bank deposits/Company [member] | ssmt-mfrs:WithdrawalOfBankDeposits | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r63.c0 | Withdrawal(Placement) of securities pledged for borrowings/Group [member] | ssmt-mfrs:WithdrawalOfSecuritiesPledgedForBorrowings | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r63.c1 | Withdrawal(Placement) of securities pledged for borrowings/Company [member] | ssmt-mfrs:WithdrawalOfSecuritiesPledgedForBorrowings | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r64.c0 | Dividends paid/Group [member] | ifrs-full:DividendsPaidClassifiedAsFinancingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r64.c1 | Dividends paid/Company [member] | ifrs-full:DividendsPaidClassifiedAsFinancingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r65.c0 | Interest paid/Group [member] | ifrs-full:InterestPaidClassifiedAsFinancingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r65.c1 | Interest paid/Company [member] | ifrs-full:InterestPaidClassifiedAsFinancingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r66.c0 | Other cash inflows (outflows) from financing activities/Group [member] | ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r66.c1 | Other cash inflows (outflows) from financing activities/Company [member] | ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r67.c0 | Net cash flows from (used in) financing activities/Group [member] | ifrs-full:CashFlowsFromUsedInFinancingActivities | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r67.c1 | Net cash flows from (used in) financing activities/Company [member] | ifrs-full:CashFlowsFromUsedInFinancingActivities | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r68.c0 | Net increase (decrease) in cash and cash equivalents before effect of exchange rate changes/Group [member] | ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r68.c1 | Net increase (decrease) in cash and cash equivalents before effect of exchange rate changes/Company [member] | ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r69.c0 | Effect of exchange rate changes on cash and cash equivalents/Group [member] | ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r69.c1 | Effect of exchange rate changes on cash and cash equivalents/Company [member] | ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r70.c0 | Net increase (decrease) in cash and cash equivalents/Group [member] | ifrs-full:IncreaseDecreaseInCashAndCashEquivalents | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r70.c1 | Net increase (decrease) in cash and cash equivalents/Company [member] | ifrs-full:IncreaseDecreaseInCashAndCashEquivalents | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r71.c0 | Cash and cash equivalents at beginning of period/Group [member] | ifrs-full:CashAndCashEquivalents | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r71.c1 | Cash and cash equivalents at beginning of period/Company [member] | ifrs-full:CashAndCashEquivalents | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r72.c0 | Cash and cash equivalents at end of period/Group [member] | ifrs-full:CashAndCashEquivalents | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r72.c1 | Cash and cash equivalents at end of period/Company [member] | ifrs-full:CashAndCashEquivalents | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |