| r0.c0 | RuleNode_29/Parent [member] | | | | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | N/A |
| r0.c1 | RuleNode_29/Entities with joint control or significant influence [member] | | | | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | N/A |
| r0.c2 | RuleNode_29/Subsidiaries [member] | | | | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | N/A |
| r0.c3 | RuleNode_29/Associates [member] | | | | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | N/A |
| r0.c4 | RuleNode_29/Joint ventures where entity is venturer [member] | | | | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | N/A |
| r0.c5 | RuleNode_29/Key management personnel [member] | | | | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | N/A |
| r0.c6 | RuleNode_29/Other related party [member] | | | | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | N/A |
| r0.c7 | RuleNode_29/Total [member] | | | | N/A | ifrs-full:ConsolidatedMember | N/A |
| r1.c0 | Transactions with related parties [abstract]/Parent [member] | ifrs-full:RelatedPartyTransactionsAbstract | xbrli:stringItemType | duration | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | N/A |
| r1.c1 | Transactions with related parties [abstract]/Entities with joint control or significant influence [member] | ifrs-full:RelatedPartyTransactionsAbstract | xbrli:stringItemType | duration | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | N/A |
| r1.c2 | Transactions with related parties [abstract]/Subsidiaries [member] | ifrs-full:RelatedPartyTransactionsAbstract | xbrli:stringItemType | duration | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | N/A |
| r1.c3 | Transactions with related parties [abstract]/Associates [member] | ifrs-full:RelatedPartyTransactionsAbstract | xbrli:stringItemType | duration | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | N/A |
| r1.c4 | Transactions with related parties [abstract]/Joint ventures where entity is venturer [member] | ifrs-full:RelatedPartyTransactionsAbstract | xbrli:stringItemType | duration | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | N/A |
| r1.c5 | Transactions with related parties [abstract]/Key management personnel [member] | ifrs-full:RelatedPartyTransactionsAbstract | xbrli:stringItemType | duration | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | N/A |
| r1.c6 | Transactions with related parties [abstract]/Other related party [member] | ifrs-full:RelatedPartyTransactionsAbstract | xbrli:stringItemType | duration | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | N/A |
| r1.c7 | Transactions with related parties [abstract]/Total [member] | ifrs-full:RelatedPartyTransactionsAbstract | xbrli:stringItemType | duration | N/A | ifrs-full:ConsolidatedMember | N/A |
| r2.c0 | Donation income/Parent [member] | ssmt-mfrs:IncomeFromDonations | xbrli:monetaryItemType | duration | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r2.c1 | Donation income/Entities with joint control or significant influence [member] | ssmt-mfrs:IncomeFromDonations | xbrli:monetaryItemType | duration | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r2.c2 | Donation income/Subsidiaries [member] | ssmt-mfrs:IncomeFromDonations | xbrli:monetaryItemType | duration | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r2.c3 | Donation income/Associates [member] | ssmt-mfrs:IncomeFromDonations | xbrli:monetaryItemType | duration | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r2.c4 | Donation income/Joint ventures where entity is venturer [member] | ssmt-mfrs:IncomeFromDonations | xbrli:monetaryItemType | duration | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r2.c5 | Donation income/Key management personnel [member] | ssmt-mfrs:IncomeFromDonations | xbrli:monetaryItemType | duration | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r2.c6 | Donation income/Other related party [member] | ssmt-mfrs:IncomeFromDonations | xbrli:monetaryItemType | duration | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r2.c7 | Donation income/Total [member] | ssmt-mfrs:IncomeFromDonations | xbrli:monetaryItemType | duration | N/A | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c0 | Contribution income/Parent [member] | ssmt-mfrs:IncomeFromContributions | xbrli:monetaryItemType | duration | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c1 | Contribution income/Entities with joint control or significant influence [member] | ssmt-mfrs:IncomeFromContributions | xbrli:monetaryItemType | duration | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c2 | Contribution income/Subsidiaries [member] | ssmt-mfrs:IncomeFromContributions | xbrli:monetaryItemType | duration | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c3 | Contribution income/Associates [member] | ssmt-mfrs:IncomeFromContributions | xbrli:monetaryItemType | duration | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c4 | Contribution income/Joint ventures where entity is venturer [member] | ssmt-mfrs:IncomeFromContributions | xbrli:monetaryItemType | duration | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c5 | Contribution income/Key management personnel [member] | ssmt-mfrs:IncomeFromContributions | xbrli:monetaryItemType | duration | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c6 | Contribution income/Other related party [member] | ssmt-mfrs:IncomeFromContributions | xbrli:monetaryItemType | duration | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c7 | Contribution income/Total [member] | ssmt-mfrs:IncomeFromContributions | xbrli:monetaryItemType | duration | N/A | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c0 | Dividend income/Parent [member] | ssmt-mfrs:DividendIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c1 | Dividend income/Entities with joint control or significant influence [member] | ssmt-mfrs:DividendIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c2 | Dividend income/Subsidiaries [member] | ssmt-mfrs:DividendIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c3 | Dividend income/Associates [member] | ssmt-mfrs:DividendIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c4 | Dividend income/Joint ventures where entity is venturer [member] | ssmt-mfrs:DividendIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c5 | Dividend income/Key management personnel [member] | ssmt-mfrs:DividendIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c6 | Dividend income/Other related party [member] | ssmt-mfrs:DividendIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c7 | Dividend income/Total [member] | ssmt-mfrs:DividendIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | N/A | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c0 | Interest income/Parent [member] | ssmt-mfrs:InterestIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c1 | Interest income/Entities with joint control or significant influence [member] | ssmt-mfrs:InterestIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c2 | Interest income/Subsidiaries [member] | ssmt-mfrs:InterestIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c3 | Interest income/Associates [member] | ssmt-mfrs:InterestIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c4 | Interest income/Joint ventures where entity is venturer [member] | ssmt-mfrs:InterestIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c5 | Interest income/Key management personnel [member] | ssmt-mfrs:InterestIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c6 | Interest income/Other related party [member] | ssmt-mfrs:InterestIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c7 | Interest income/Total [member] | ssmt-mfrs:InterestIncomeRelatedPartyTransactions | xbrli:monetaryItemType | duration | N/A | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c0 | Rental expenses/Parent [member] | ssmt-mfrs:RentalExpensesRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c1 | Rental expenses/Entities with joint control or significant influence [member] | ssmt-mfrs:RentalExpensesRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c2 | Rental expenses/Subsidiaries [member] | ssmt-mfrs:RentalExpensesRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c3 | Rental expenses/Associates [member] | ssmt-mfrs:RentalExpensesRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c4 | Rental expenses/Joint ventures where entity is venturer [member] | ssmt-mfrs:RentalExpensesRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c5 | Rental expenses/Key management personnel [member] | ssmt-mfrs:RentalExpensesRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c6 | Rental expenses/Other related party [member] | ssmt-mfrs:RentalExpensesRelatedPartyTransactions | xbrli:monetaryItemType | duration | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c7 | Rental expenses/Total [member] | ssmt-mfrs:RentalExpensesRelatedPartyTransactions | xbrli:monetaryItemType | duration | N/A | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c0 | Key management personnel/Parent [member] | ifrs-full:KeyManagementPersonnelCompensation | xbrli:monetaryItemType | duration | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c1 | Key management personnel/Entities with joint control or significant influence [member] | ifrs-full:KeyManagementPersonnelCompensation | xbrli:monetaryItemType | duration | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c2 | Key management personnel/Subsidiaries [member] | ifrs-full:KeyManagementPersonnelCompensation | xbrli:monetaryItemType | duration | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c3 | Key management personnel/Associates [member] | ifrs-full:KeyManagementPersonnelCompensation | xbrli:monetaryItemType | duration | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c4 | Key management personnel/Joint ventures where entity is venturer [member] | ifrs-full:KeyManagementPersonnelCompensation | xbrli:monetaryItemType | duration | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c5 | Key management personnel/Key management personnel [member] | ifrs-full:KeyManagementPersonnelCompensation | xbrli:monetaryItemType | duration | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c6 | Key management personnel/Other related party [member] | ifrs-full:KeyManagementPersonnelCompensation | xbrli:monetaryItemType | duration | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c7 | Key management personnel/Total [member] | ifrs-full:KeyManagementPersonnelCompensation | xbrli:monetaryItemType | duration | N/A | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r8.c0 | Other related parties transactions/Parent [member] | ssmt-mfrs:OtherTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r8.c1 | Other related parties transactions/Entities with joint control or significant influence [member] | ssmt-mfrs:OtherTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r8.c2 | Other related parties transactions/Subsidiaries [member] | ssmt-mfrs:OtherTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r8.c3 | Other related parties transactions/Associates [member] | ssmt-mfrs:OtherTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r8.c4 | Other related parties transactions/Joint ventures where entity is venturer [member] | ssmt-mfrs:OtherTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r8.c5 | Other related parties transactions/Key management personnel [member] | ssmt-mfrs:OtherTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r8.c6 | Other related parties transactions/Other related party [member] | ssmt-mfrs:OtherTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r8.c7 | Other related parties transactions/Total [member] | ssmt-mfrs:OtherTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | N/A | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c0 | Other expenses/Parent [member] | ssmt-mfrs:OtherExpensesRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c1 | Other expenses/Entities with joint control or significant influence [member] | ssmt-mfrs:OtherExpensesRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c2 | Other expenses/Subsidiaries [member] | ssmt-mfrs:OtherExpensesRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c3 | Other expenses/Associates [member] | ssmt-mfrs:OtherExpensesRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c4 | Other expenses/Joint ventures where entity is venturer [member] | ssmt-mfrs:OtherExpensesRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c5 | Other expenses/Key management personnel [member] | ssmt-mfrs:OtherExpensesRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c6 | Other expenses/Other related party [member] | ssmt-mfrs:OtherExpensesRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c7 | Other expenses/Total [member] | ssmt-mfrs:OtherExpensesRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | N/A | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r10.c0 | Other revenue/Parent [member] | ssmt-mfrs:OtherRevenueRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r10.c1 | Other revenue/Entities with joint control or significant influence [member] | ssmt-mfrs:OtherRevenueRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r10.c2 | Other revenue/Subsidiaries [member] | ssmt-mfrs:OtherRevenueRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r10.c3 | Other revenue/Associates [member] | ssmt-mfrs:OtherRevenueRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r10.c4 | Other revenue/Joint ventures where entity is venturer [member] | ssmt-mfrs:OtherRevenueRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r10.c5 | Other revenue/Key management personnel [member] | ssmt-mfrs:OtherRevenueRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r10.c6 | Other revenue/Other related party [member] | ssmt-mfrs:OtherRevenueRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r10.c7 | Other revenue/Total [member] | ssmt-mfrs:OtherRevenueRecognisedForTransactionsWithRelatedParties | xbrli:monetaryItemType | duration | N/A | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r11.c0 | Balances with related parties [abstract]/Parent [member] | ssmt-mfrs:BalancesWithRelatedPartiesAbstract | xbrli:stringItemType | duration | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | N/A |
| r11.c1 | Balances with related parties [abstract]/Entities with joint control or significant influence [member] | ssmt-mfrs:BalancesWithRelatedPartiesAbstract | xbrli:stringItemType | duration | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | N/A |
| r11.c2 | Balances with related parties [abstract]/Subsidiaries [member] | ssmt-mfrs:BalancesWithRelatedPartiesAbstract | xbrli:stringItemType | duration | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | N/A |
| r11.c3 | Balances with related parties [abstract]/Associates [member] | ssmt-mfrs:BalancesWithRelatedPartiesAbstract | xbrli:stringItemType | duration | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | N/A |
| r11.c4 | Balances with related parties [abstract]/Joint ventures where entity is venturer [member] | ssmt-mfrs:BalancesWithRelatedPartiesAbstract | xbrli:stringItemType | duration | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | N/A |
| r11.c5 | Balances with related parties [abstract]/Key management personnel [member] | ssmt-mfrs:BalancesWithRelatedPartiesAbstract | xbrli:stringItemType | duration | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | N/A |
| r11.c6 | Balances with related parties [abstract]/Other related party [member] | ssmt-mfrs:BalancesWithRelatedPartiesAbstract | xbrli:stringItemType | duration | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | N/A |
| r11.c7 | Balances with related parties [abstract]/Total [member] | ssmt-mfrs:BalancesWithRelatedPartiesAbstract | xbrli:stringItemType | duration | N/A | ifrs-full:ConsolidatedMember | N/A |
| r12.c0 | Amount receivables/Parent [member] | ifrs-full:AmountsReceivableRelatedPartyTransactions | xbrli:monetaryItemType | instant | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r12.c1 | Amount receivables/Entities with joint control or significant influence [member] | ifrs-full:AmountsReceivableRelatedPartyTransactions | xbrli:monetaryItemType | instant | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r12.c2 | Amount receivables/Subsidiaries [member] | ifrs-full:AmountsReceivableRelatedPartyTransactions | xbrli:monetaryItemType | instant | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r12.c3 | Amount receivables/Associates [member] | ifrs-full:AmountsReceivableRelatedPartyTransactions | xbrli:monetaryItemType | instant | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r12.c4 | Amount receivables/Joint ventures where entity is venturer [member] | ifrs-full:AmountsReceivableRelatedPartyTransactions | xbrli:monetaryItemType | instant | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r12.c5 | Amount receivables/Key management personnel [member] | ifrs-full:AmountsReceivableRelatedPartyTransactions | xbrli:monetaryItemType | instant | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r12.c6 | Amount receivables/Other related party [member] | ifrs-full:AmountsReceivableRelatedPartyTransactions | xbrli:monetaryItemType | instant | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r12.c7 | Amount receivables/Total [member] | ifrs-full:AmountsReceivableRelatedPartyTransactions | xbrli:monetaryItemType | instant | N/A | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r13.c0 | Amount payables/Parent [member] | ifrs-full:AmountsPayableRelatedPartyTransactions | xbrli:monetaryItemType | instant | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r13.c1 | Amount payables/Entities with joint control or significant influence [member] | ifrs-full:AmountsPayableRelatedPartyTransactions | xbrli:monetaryItemType | instant | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r13.c2 | Amount payables/Subsidiaries [member] | ifrs-full:AmountsPayableRelatedPartyTransactions | xbrli:monetaryItemType | instant | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r13.c3 | Amount payables/Associates [member] | ifrs-full:AmountsPayableRelatedPartyTransactions | xbrli:monetaryItemType | instant | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r13.c4 | Amount payables/Joint ventures where entity is venturer [member] | ifrs-full:AmountsPayableRelatedPartyTransactions | xbrli:monetaryItemType | instant | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r13.c5 | Amount payables/Key management personnel [member] | ifrs-full:AmountsPayableRelatedPartyTransactions | xbrli:monetaryItemType | instant | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r13.c6 | Amount payables/Other related party [member] | ifrs-full:AmountsPayableRelatedPartyTransactions | xbrli:monetaryItemType | instant | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r13.c7 | Amount payables/Total [member] | ifrs-full:AmountsPayableRelatedPartyTransactions | xbrli:monetaryItemType | instant | N/A | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r14.c0 | Other outstanding balances/Parent [member] | ssmt-mfrs:OtherBalancesWithRelatedParties | xbrli:monetaryItemType | instant | ifrs-full:ParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r14.c1 | Other outstanding balances/Entities with joint control or significant influence [member] | ssmt-mfrs:OtherBalancesWithRelatedParties | xbrli:monetaryItemType | instant | ifrs-full:JointControlOrSignificantInfluenceMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r14.c2 | Other outstanding balances/Subsidiaries [member] | ssmt-mfrs:OtherBalancesWithRelatedParties | xbrli:monetaryItemType | instant | ifrs-full:SubsidiariesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r14.c3 | Other outstanding balances/Associates [member] | ssmt-mfrs:OtherBalancesWithRelatedParties | xbrli:monetaryItemType | instant | ifrs-full:AssociatesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r14.c4 | Other outstanding balances/Joint ventures where entity is venturer [member] | ssmt-mfrs:OtherBalancesWithRelatedParties | xbrli:monetaryItemType | instant | ifrs-full:JointVenturesWhereEntityIsVenturerMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r14.c5 | Other outstanding balances/Key management personnel [member] | ssmt-mfrs:OtherBalancesWithRelatedParties | xbrli:monetaryItemType | instant | ifrs-full:KeyManagementPersonnelOfEntityOrParentMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r14.c6 | Other outstanding balances/Other related party [member] | ssmt-mfrs:OtherBalancesWithRelatedParties | xbrli:monetaryItemType | instant | ifrs-full:OtherRelatedPartiesMember | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r14.c7 | Other outstanding balances/Total [member] | ssmt-mfrs:OtherBalancesWithRelatedParties | xbrli:monetaryItemType | instant | N/A | ifrs-full:ConsolidatedMember | iso4217:MYR |