| r0.c0 | RuleNode_368/Group [member] | | | | ifrs-full:ConsolidatedMember | N/A |
| r0.c1 | RuleNode_368/Company [member] | | | | ifrs-full:SeparateMember | N/A |
| r1.c0 | Derivative financial liabilities [abstract]/Group [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r1.c1 | Derivative financial liabilities [abstract]/Company [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r2.c0 | Derivatives at fair value through profit or loss [abstract]/Group [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r2.c1 | Derivatives at fair value through profit or loss [abstract]/Company [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r3.c0 | Forward contract/Group [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesForwardContract | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c1 | Forward contract/Company [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesForwardContract | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r4.c0 | Options/Group [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesOptions | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c1 | Options/Company [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesOptions | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r5.c0 | Swap/Group [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesSwaps | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c1 | Swap/Company [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesSwaps | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r6.c0 | Other derivatives/Group [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesOthers | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c1 | Other derivatives/Company [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesOthers | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r7.c0 | Total derivatives at fair value through profit or loss/Group [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesAtFairValueThroughProfitOrLoss | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c1 | Total derivatives at fair value through profit or loss/Company [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesAtFairValueThroughProfitOrLoss | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r8.c0 | Derivatives used for hedging [abstract]/Group [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesUsedForHedgingAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r8.c1 | Derivatives used for hedging [abstract]/Company [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesUsedForHedgingAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r9.c0 | Forward contract/Group [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesForwardContractUsedForHedging | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c1 | Forward contract/Company [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesForwardContractUsedForHedging | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r10.c0 | Options/Group [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesOptionsUsedForHedging | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r10.c1 | Options/Company [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesOptionsUsedForHedging | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r11.c0 | Swap/Group [member] | ssmt-mfrs:DerivativeFinancialLiabiltiesSwapsUsedForHedging | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r11.c1 | Swap/Company [member] | ssmt-mfrs:DerivativeFinancialLiabiltiesSwapsUsedForHedging | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r12.c0 | Other derivatives/Group [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesOthersUsedForHedging | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r12.c1 | Other derivatives/Company [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesOthersUsedForHedging | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r13.c0 | Total derivatives used for hedging/Group [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesUsedForHedging | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r13.c1 | Total derivatives used for hedging/Company [member] | ssmt-mfrs:DerivativeFinancialLiabilitiesUsedForHedging | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r14.c0 | Other derivative financial liabilities/Group [member] | ssmt-mfrs:OtherDerivativeFinancialLiabilities | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r14.c1 | Other derivative financial liabilities/Company [member] | ssmt-mfrs:OtherDerivativeFinancialLiabilities | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r15.c0 | Total derivative financial liabilities/Group [member] | ifrs-full:DerivativeFinancialLiabilities | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r15.c1 | Total derivative financial liabilities/Company [member] | ifrs-full:DerivativeFinancialLiabilities | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |