| r0.c0 | RuleNode_251/Group [member] | | | | ifrs-full:ConsolidatedMember | N/A |
| r0.c1 | RuleNode_251/Company [member] | | | | ifrs-full:SeparateMember | N/A |
| r1.c0 | Borrowings [abstract]/Group [member] | ifrs-full:BorrowingsAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r1.c1 | Borrowings [abstract]/Company [member] | ifrs-full:BorrowingsAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r2.c0 | Secured bank loans received [abstract]/Group [member] | ssmt-mfrs:SecuredBankLoansReceivedAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r2.c1 | Secured bank loans received [abstract]/Company [member] | ssmt-mfrs:SecuredBankLoansReceivedAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r3.c0 | Term loans/Group [member] | ssmt-mfrs:SecuredTermLoans | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c1 | Term loans/Company [member] | ssmt-mfrs:SecuredTermLoans | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r4.c0 | Islamic financing facilities/Group [member] | ssmt-mfrs:SecuredIslamicFinancingFacilities | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c1 | Islamic financing facilities/Company [member] | ssmt-mfrs:SecuredIslamicFinancingFacilities | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r5.c0 | Hire purchase and finance lease liabilities/Group [member] | ssmt-mfrs:SecuredHirePurchaseAndFinanceLeaseLiabilities | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c1 | Hire purchase and finance lease liabilities/Company [member] | ssmt-mfrs:SecuredHirePurchaseAndFinanceLeaseLiabilities | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r6.c0 | Islamic medium term notes/Group [member] | ssmt-mfrs:SecuredIslamicMediumTermNotes | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c1 | Islamic medium term notes/Company [member] | ssmt-mfrs:SecuredIslamicMediumTermNotes | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r7.c0 | Sukuk/Group [member] | ssmt-mfrs:SecuredSukuk | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c1 | Sukuk/Company [member] | ssmt-mfrs:SecuredSukuk | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r8.c0 | Revolving credit and others/Group [member] | ssmt-mfrs:SecuredRevolvingCreditAndOthers | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r8.c1 | Revolving credit and others/Company [member] | ssmt-mfrs:SecuredRevolvingCreditAndOthers | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r9.c0 | Bankers' acceptance/Group [member] | ssmt-mfrs:SecuredBankersAcceptance | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c1 | Bankers' acceptance/Company [member] | ssmt-mfrs:SecuredBankersAcceptance | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r10.c0 | Bank overdrafts/Group [member] | ssmt-mfrs:SecuredBankOverdrafts | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r10.c1 | Bank overdrafts/Company [member] | ssmt-mfrs:SecuredBankOverdrafts | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r11.c0 | Trade financing facilities/Group [member] | ssmt-mfrs:SecuredTradeFinancingFacilities | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r11.c1 | Trade financing facilities/Company [member] | ssmt-mfrs:SecuredTradeFinancingFacilities | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r12.c0 | Other secured bank loans received/Group [member] | ssmt-mfrs:OtherSecuredBankLoansReceived | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r12.c1 | Other secured bank loans received/Company [member] | ssmt-mfrs:OtherSecuredBankLoansReceived | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r13.c0 | Total secured bank loans received/Group [member] | ifrs-full:SecuredBankLoansReceived | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r13.c1 | Total secured bank loans received/Company [member] | ifrs-full:SecuredBankLoansReceived | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r14.c0 | Unsecured bank loans received [abstract]/Group [member] | ssmt-mfrs:UnsecuredBankLoansReceivedAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r14.c1 | Unsecured bank loans received [abstract]/Company [member] | ssmt-mfrs:UnsecuredBankLoansReceivedAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r15.c0 | Block discounting payables/Group [member] | ssmt-mfrs:UnsecuredBlockDiscountingPayables | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r15.c1 | Block discounting payables/Company [member] | ssmt-mfrs:UnsecuredBlockDiscountingPayables | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r16.c0 | Term loans/Group [member] | ssmt-mfrs:UnsecuredTermLoans | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r16.c1 | Term loans/Company [member] | ssmt-mfrs:UnsecuredTermLoans | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r17.c0 | Irredeemable Convertible Unsecured Loan Stocks (ICULS)/Group [member] | ssmt-mfrs:UnsecuredIrredeemableConvertibleUnsecuredLoanStocks | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r17.c1 | Irredeemable Convertible Unsecured Loan Stocks (ICULS)/Company [member] | ssmt-mfrs:UnsecuredIrredeemableConvertibleUnsecuredLoanStocks | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r18.c0 | Islamic financing facilities/Group [member] | ssmt-mfrs:UnsecuredIslamicFinancingFacilities | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r18.c1 | Islamic financing facilities/Company [member] | ssmt-mfrs:UnsecuredIslamicFinancingFacilities | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r19.c0 | Hire purchase and finance lease liabilities/Group [member] | ssmt-mfrs:UnsecuredHirePurchaseAndFinanceLeaseLiabilities | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r19.c1 | Hire purchase and finance lease liabilities/Company [member] | ssmt-mfrs:UnsecuredHirePurchaseAndFinanceLeaseLiabilities | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r20.c0 | Islamic medium term notes/Group [member] | ssmt-mfrs:UnsecuredIslamicMediumTermNotes | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r20.c1 | Islamic medium term notes/Company [member] | ssmt-mfrs:UnsecuredIslamicMediumTermNotes | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r21.c0 | Sukuk/Group [member] | ssmt-mfrs:UnsecuredSukuk | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r21.c1 | Sukuk/Company [member] | ssmt-mfrs:UnsecuredSukuk | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r22.c0 | Revolving credit and others/Group [member] | ssmt-mfrs:UnsecuredRevolvingCreditAndNotes | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r22.c1 | Revolving credit and others/Company [member] | ssmt-mfrs:UnsecuredRevolvingCreditAndNotes | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r23.c0 | Other unsecured bank loans received/Group [member] | ssmt-mfrs:UnsecuredOtherBankLoansReceived | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r23.c1 | Other unsecured bank loans received/Company [member] | ssmt-mfrs:UnsecuredOtherBankLoansReceived | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r24.c0 | Total unsecured bank loans received/Group [member] | ifrs-full:UnsecuredBankLoansReceived | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r24.c1 | Total unsecured bank loans received/Company [member] | ifrs-full:UnsecuredBankLoansReceived | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r25.c0 | Secured bonds/sukuk/loan stock [abstract]/Group [member] | ssmt-mfrs:SecuredBondsSukukLoanStockAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r25.c1 | Secured bonds/sukuk/loan stock [abstract]/Company [member] | ssmt-mfrs:SecuredBondsSukukLoanStockAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r26.c0 | Bonds/Group [member] | ssmt-mfrs:SecuredBonds | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r26.c1 | Bonds/Company [member] | ssmt-mfrs:SecuredBonds | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r27.c0 | Sukuk/Group [member] | ssmt-mfrs:SecuredSukukAsPerShariahCommittee | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r27.c1 | Sukuk/Company [member] | ssmt-mfrs:SecuredSukukAsPerShariahCommittee | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r28.c0 | Medium term notes/Group [member] | ssmt-mfrs:SecuredMediumTermNotes | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r28.c1 | Medium term notes/Company [member] | ssmt-mfrs:SecuredMediumTermNotes | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r29.c0 | Loan stocks/Group [member] | ssmt-mfrs:SecuredLoanStocks | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r29.c1 | Loan stocks/Company [member] | ssmt-mfrs:SecuredLoanStocks | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r30.c0 | Preference shares/Group [member] | ssmt-mfrs:SecuredPreferenceShares | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r30.c1 | Preference shares/Company [member] | ssmt-mfrs:SecuredPreferenceShares | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r31.c0 | Total secured bonds/sukuk/loan stock/Group [member] | ssmt-mfrs:SecuredBondsSukukAndLoanStocks | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r31.c1 | Total secured bonds/sukuk/loan stock/Company [member] | ssmt-mfrs:SecuredBondsSukukAndLoanStocks | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r32.c0 | Unsecured bonds/sukuk/loan stock [abstract]/Group [member] | ssmt-mfrs:UnsecuredBondsSukukAndLoanStocksAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r32.c1 | Unsecured bonds/sukuk/loan stock [abstract]/Company [member] | ssmt-mfrs:UnsecuredBondsSukukAndLoanStocksAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r33.c0 | Bonds/Group [member] | ssmt-mfrs:UnsecuredBonds | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r33.c1 | Bonds/Company [member] | ssmt-mfrs:UnsecuredBonds | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r34.c0 | Sukuk/Group [member] | ssmt-mfrs:UnsecuredSukukAsPerShariahCommittee | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r34.c1 | Sukuk/Company [member] | ssmt-mfrs:UnsecuredSukukAsPerShariahCommittee | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r35.c0 | Medium term notes/Group [member] | ssmt-mfrs:UnsecuredMediumTermNotes | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r35.c1 | Medium term notes/Company [member] | ssmt-mfrs:UnsecuredMediumTermNotes | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r36.c0 | Loan stocks/Group [member] | ssmt-mfrs:UnsecuredLoanStocks | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r36.c1 | Loan stocks/Company [member] | ssmt-mfrs:UnsecuredLoanStocks | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r37.c0 | Preference shares/Group [member] | ssmt-mfrs:UnsecuredPreferenceShares | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r37.c1 | Preference shares/Company [member] | ssmt-mfrs:UnsecuredPreferenceShares | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r38.c0 | Total unsecured bonds/sukuk/loan stock/Group [member] | ssmt-mfrs:UnsecuredBondsSukukAndLoanStocks | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r38.c1 | Total unsecured bonds/sukuk/loan stock/Company [member] | ssmt-mfrs:UnsecuredBondsSukukAndLoanStocks | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r39.c0 | Other borrowings [abstract]/Group [member] | ssmt-mfrs:OtherBorrowingsAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r39.c1 | Other borrowings [abstract]/Company [member] | ssmt-mfrs:OtherBorrowingsAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r40.c0 | Trade loans/Group [member] | ssmt-mfrs:OtherBorrowingsTradeLoans | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r40.c1 | Trade loans/Company [member] | ssmt-mfrs:OtherBorrowingsTradeLoans | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r41.c0 | Loan from subsidiaries/Group [member] | ssmt-mfrs:OtherBorrowingsLoanFromSubsidiaries | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r41.c1 | Loan from subsidiaries/Company [member] | ssmt-mfrs:OtherBorrowingsLoanFromSubsidiaries | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r42.c0 | Loan from associates/Group [member] | ssmt-mfrs:OtherBorrowingsLoanFromAssociates | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r42.c1 | Loan from associates/Company [member] | ssmt-mfrs:OtherBorrowingsLoanFromAssociates | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r43.c0 | Loan from joint ventures/Group [member] | ssmt-mfrs:OtherBorrowingsLoanFromJointVentures | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r43.c1 | Loan from joint ventures/Company [member] | ssmt-mfrs:OtherBorrowingsLoanFromJointVentures | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r44.c0 | Redeemable preference shares/Group [member] | ssmt-mfrs:OtherBorrowingsRedeemablePreferenceShares | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r44.c1 | Redeemable preference shares/Company [member] | ssmt-mfrs:OtherBorrowingsRedeemablePreferenceShares | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r45.c0 | Other borrowings/Group [member] | ssmt-mfrs:OtherMiscellaneousBorrowings | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r45.c1 | Other borrowings/Company [member] | ssmt-mfrs:OtherMiscellaneousBorrowings | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r46.c0 | Total other borrowings/Group [member] | ssmt-mfrs:OtherBorrowings | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r46.c1 | Total other borrowings/Company [member] | ssmt-mfrs:OtherBorrowings | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r47.c0 | Total borrowings/Group [member] | ifrs-full:Borrowings | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r47.c1 | Total borrowings/Company [member] | ifrs-full:Borrowings | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |