| r0.c0 | RuleNode_240/Group [member] | | | | ifrs-full:ConsolidatedMember | N/A |
| r0.c1 | RuleNode_240/Company [member] | | | | ifrs-full:SeparateMember | N/A |
| r1.c0 | Equity - others components [abstract]/Group [member] | ssmt-mfrs:OtherComponentsOfEquityAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r1.c1 | Equity - others components [abstract]/Company [member] | ssmt-mfrs:OtherComponentsOfEquityAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r2.c0 | Perpetual sukuk/Group [member] | ssmt-mfrs:PerpetualSukuk | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r2.c1 | Perpetual sukuk/Company [member] | ssmt-mfrs:PerpetualSukuk | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r3.c0 | Equity component of Irredeemable Convertible Unsecured Loan Stocks (ICULS)/Group [member] | ssmt-mfrs:EquityComponentOfIrredeemableConvertibleUnsecuredLoanStocks | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c1 | Equity component of Irredeemable Convertible Unsecured Loan Stocks (ICULS)/Company [member] | ssmt-mfrs:EquityComponentOfIrredeemableConvertibleUnsecuredLoanStocks | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r4.c0 | Equity component of preference shares/Group [member] | ssmt-mfrs:EquityComponentOfPreferenceShares | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c1 | Equity component of preference shares/Company [member] | ssmt-mfrs:EquityComponentOfPreferenceShares | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r5.c0 | Head office accounts/Group [member] | ssmt-mfrs:HeadOfficeAccounts | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c1 | Head office accounts/Company [member] | ssmt-mfrs:HeadOfficeAccounts | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r6.c0 | Equity components of other financial instruments/Group [member] | ssmt-mfrs:EquityComponentsOfOtherFinancialInstruments | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c1 | Equity components of other financial instruments/Company [member] | ssmt-mfrs:EquityComponentsOfOtherFinancialInstruments | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r7.c0 | Total equity - other components/Group [member] | ssmt-mfrs:OtherComponentsOfEquity | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c1 | Total equity - other components/Company [member] | ssmt-mfrs:OtherComponentsOfEquity | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |