| r0.c0 | RuleNode_209/Group [member] | | | | ifrs-full:ConsolidatedMember | N/A |
| r0.c1 | RuleNode_209/Company [member] | | | | ifrs-full:SeparateMember | N/A |
| r1.c0 | Issued capital [abstract]/Group [member] | ssmt-mfrs:IssuedCapitalAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r1.c1 | Issued capital [abstract]/Company [member] | ssmt-mfrs:IssuedCapitalAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r2.c0 | Capital from ordinary shares/Group [member] | ssmt-mfrs:CapitalFromOrdinaryShares | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r2.c1 | Capital from ordinary shares/Company [member] | ssmt-mfrs:CapitalFromOrdinaryShares | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r3.c0 | Capital from redeemable preference shares/Group [member] | ssmt-mfrs:CapitalFromRedeemablePreferenceShares | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r3.c1 | Capital from redeemable preference shares/Company [member] | ssmt-mfrs:CapitalFromRedeemablePreferenceShares | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r4.c0 | Capital from non-redeemable preference shares/Group [member] | ssmt-mfrs:CapitalFromNonredeemablePreferenceShares | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r4.c1 | Capital from non-redeemable preference shares/Company [member] | ssmt-mfrs:CapitalFromNonredeemablePreferenceShares | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |
| r5.c0 | Total issued capital/Group [member] | ifrs-full:IssuedCapital | xbrli:monetaryItemType | instant | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c1 | Total issued capital/Company [member] | ifrs-full:IssuedCapital | xbrli:monetaryItemType | instant | ifrs-full:SeparateMember | iso4217:MYR |