| r0.c0 | RuleNode_2/Group [member] | | | | ifrs-smes:ConsolidatedMember | N/A |
| r0.c1 | RuleNode_2/Company [member] | | | | ifrs-smes:SeparateMember | N/A |
| r1.c0 | Statement of comprehensive income [abstract]/Group [member] | ifrs-smes:StatementOfComprehensiveIncomeAbstract | xbrli:stringItemType | duration | ifrs-smes:ConsolidatedMember | N/A |
| r1.c1 | Statement of comprehensive income [abstract]/Company [member] | ifrs-smes:StatementOfComprehensiveIncomeAbstract | xbrli:stringItemType | duration | ifrs-smes:SeparateMember | N/A |
| r2.c0 | Profit (loss)/Group [member] | ifrs-smes:ProfitLoss | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r2.c1 | Profit (loss)/Company [member] | ifrs-smes:ProfitLoss | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |
| r3.c0 | Other comprehensive income [abstract]/Group [member] | ifrs-smes:OtherComprehensiveIncomeAbstract | xbrli:stringItemType | duration | ifrs-smes:ConsolidatedMember | N/A |
| r3.c1 | Other comprehensive income [abstract]/Company [member] | ifrs-smes:OtherComprehensiveIncomeAbstract | xbrli:stringItemType | duration | ifrs-smes:SeparateMember | N/A |
| r4.c0 | Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]/Group [member] | ifrs-smes:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract | xbrli:stringItemType | duration | ifrs-smes:ConsolidatedMember | N/A |
| r4.c1 | Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]/Company [member] | ifrs-smes:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract | xbrli:stringItemType | duration | ifrs-smes:SeparateMember | N/A |
| r5.c0 | Other comprehensive income, net of tax, exchange differences on translation/Group [member] | ifrs-smes:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r5.c1 | Other comprehensive income, net of tax, exchange differences on translation/Company [member] | ifrs-smes:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |
| r6.c0 | Other comprehensive income, net of tax, actuarial gains (losses) on defined benefit plans/Group [member] | ifrs-smes:OtherComprehensiveIncomeNetOfTaxActuarialGainsLossesOnDefinedBenefitPlans | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r6.c1 | Other comprehensive income, net of tax, actuarial gains (losses) on defined benefit plans/Company [member] | ifrs-smes:OtherComprehensiveIncomeNetOfTaxActuarialGainsLossesOnDefinedBenefitPlans | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |
| r7.c0 | Other comprehensive income, net of tax, gains (losses) on revaluation/Group [member] | ifrs-smes:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRevaluation | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r7.c1 | Other comprehensive income, net of tax, gains (losses) on revaluation/Company [member] | ifrs-smes:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRevaluation | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |
| r8.c0 | Share of other comprehensive income of associates and joint ventures accounted for using equity method/Group [member] | ssmt-mpers:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r8.c1 | Share of other comprehensive income of associates and joint ventures accounted for using equity method/Company [member] | ssmt-mpers:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |
| r9.c0 | Total other comprehensive income that will not be reclassified to profit or loss, net of tax/Group [member] | ssmt-mpers:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r9.c1 | Total other comprehensive income that will not be reclassified to profit or loss, net of tax/Company [member] | ssmt-mpers:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |
| r10.c0 | Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]/Group [member] | ifrs-smes:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract | xbrli:stringItemType | duration | ifrs-smes:ConsolidatedMember | N/A |
| r10.c1 | Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]/Company [member] | ifrs-smes:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract | xbrli:stringItemType | duration | ifrs-smes:SeparateMember | N/A |
| r11.c0 | Other comprehensive income, net of tax, exchange differences on translation/Group [member] | ssmt-mpers:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r11.c1 | Other comprehensive income, net of tax, exchange differences on translation/Company [member] | ssmt-mpers:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |
| r12.c0 | Other comprehensive income, net of tax, change in fair value of hedging instrument/Group [member] | ssmt-mpers:OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfHedgingInstrument | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r12.c1 | Other comprehensive income, net of tax, change in fair value of hedging instrument/Company [member] | ssmt-mpers:OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfHedgingInstrument | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |
| r13.c0 | Share of other comprehensive income of associates and joint ventures accounted for using equity method, net of tax/Group [member] | ssmt-mpers:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r13.c1 | Share of other comprehensive income of associates and joint ventures accounted for using equity method, net of tax/Company [member] | ssmt-mpers:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |
| r14.c0 | Total other comprehensive income that will be reclassified to profit or loss, net of tax/Group [member] | ssmt-mpers:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r14.c1 | Total other comprehensive income that will be reclassified to profit or loss, net of tax/Company [member] | ssmt-mpers:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |
| r15.c0 | Total other comprehensive income/Group [member] | ifrs-smes:OtherComprehensiveIncome | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r15.c1 | Total other comprehensive income/Company [member] | ifrs-smes:OtherComprehensiveIncome | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |
| r16.c0 | Total comprehensive income/Group [member] | ifrs-smes:ComprehensiveIncome | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r16.c1 | Total comprehensive income/Company [member] | ifrs-smes:ComprehensiveIncome | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |
| r17.c0 | Comprehensive income attributable [abstract]/Group [member] | ifrs-smes:ComprehensiveIncomeAttributableToAbstract | xbrli:stringItemType | duration | ifrs-smes:ConsolidatedMember | N/A |
| r17.c1 | Comprehensive income attributable [abstract]/Company [member] | ifrs-smes:ComprehensiveIncomeAttributableToAbstract | xbrli:stringItemType | duration | ifrs-smes:SeparateMember | N/A |
| r18.c0 | Comprehensive income, attributable to owners of parent/Group [member] | ifrs-smes:ComprehensiveIncomeAttributableToOwnersOfParent | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r18.c1 | Comprehensive income, attributable to owners of parent/Company [member] | ifrs-smes:ComprehensiveIncomeAttributableToOwnersOfParent | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |
| r19.c0 | Comprehensive income, attributable to non-controlling interests/Group [member] | ifrs-smes:ComprehensiveIncomeAttributableToNoncontrollingInterests | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r19.c1 | Comprehensive income, attributable to non-controlling interests/Company [member] | ifrs-smes:ComprehensiveIncomeAttributableToNoncontrollingInterests | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |
| r20.c0 | Total comprehensive income/Group [member] | ifrs-smes:ComprehensiveIncome | xbrli:monetaryItemType | duration | ifrs-smes:ConsolidatedMember | iso4217:MYR |
| r20.c1 | Total comprehensive income/Company [member] | ifrs-smes:ComprehensiveIncome | xbrli:monetaryItemType | duration | ifrs-smes:SeparateMember | iso4217:MYR |