| r0.c0 | RuleNode_24/Group [member] | | | | ifrs-full:ConsolidatedMember | N/A |
| r0.c1 | RuleNode_24/Company [member] | | | | ifrs-full:SeparateMember | N/A |
| r1.c0 | Cost of sales [abstract]/Group [member] | ssmt-mfrs:CostOfSalesAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r1.c1 | Cost of sales [abstract]/Company [member] | ssmt-mfrs:CostOfSalesAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r2.c0 | Cost of inventories/Group [member] | ssmt-mfrs:CostOfInventories | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r2.c1 | Cost of inventories/Company [member] | ssmt-mfrs:CostOfInventories | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r3.c0 | Construction contract cost/Group [member] | ssmt-mfrs:ConstructionContractCost | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c1 | Construction contract cost/Company [member] | ssmt-mfrs:ConstructionContractCost | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r4.c0 | Property development cost/Group [member] | ifrs-full:PropertyDevelopmentAndProjectManagementExpense | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c1 | Property development cost/Company [member] | ifrs-full:PropertyDevelopmentAndProjectManagementExpense | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r5.c0 | Total cost of sales/Group [member] | ifrs-full:CostOfSales | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c1 | Total cost of sales/Company [member] | ifrs-full:CostOfSales | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |