| r0.c0 | RuleNode_2/RuleNode_4 | | | |
| r1.c0 | Disclosure of summary of significant accounting policies [abstract]/RuleNode_4 | ssmt-mfrs:DisclosureOnSummaryOfSignificantAccountingPoliciesAbstract | xbrli:stringItemType | duration |
| r2.c0 | Disclosure of significant accounting policies [text block]/RuleNode_4 | ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory | nonnum:textBlockItemType | duration |
| r3.c0 | Description of accounting policy for administrative fees and other indicental fees [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForAdministrativeFeesAndOtherIncidentalFeesExplanatory | nonnum:textBlockItemType | duration |
| r4.c0 | Description of accounting policy for assessment income [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForAssessmentOfIncomeExplanatory | nonnum:textBlockItemType | duration |
| r5.c0 | Description of accounting policy for basis of accounting [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForBasisOfAccountingExplanatory | nonnum:textBlockItemType | duration |
| r6.c0 | Description of accounting policy for business combinations [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory | nonnum:textBlockItemType | duration |
| r7.c0 | Description of accounting policy for construction contracts [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForConstructionContractExplanatory | nonnum:textBlockItemType | duration |
| r8.c0 | Description of accounting policy for contributions [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForContributionsExplanatory | nonnum:textBlockItemType | duration |
| r9.c0 | Description of accounting policy for deferred tax [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory | nonnum:textBlockItemType | duration |
| r10.c0 | Description of accounting policy for depreciation expense [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory | nonnum:textBlockItemType | duration |
| r11.c0 | Description of accounting policy for determining components of cash and cash equivalents [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents | nonnum:textBlockItemType | duration |
| r12.c0 | Description of accounting policy for dividend income [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForDividendsExplanatory | nonnum:textBlockItemType | duration |
| r13.c0 | Description of accounting policy for donations [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForDonationsExplanatory | nonnum:textBlockItemType | duration |
| r14.c0 | Description of accounting policy for effective interest method [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForEffectiveInterestMethodExplanatory | nonnum:textBlockItemType | duration |
| r15.c0 | Description of accounting policy for employee benefits [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory | nonnum:textBlockItemType | duration |
| r16.c0 | Description of accounting policy for equity instruments [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForEquityInstrumentExplanatory | nonnum:textBlockItemType | duration |
| r17.c0 | Description of accounting policy for expenses [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForExpensesExplanatory | nonnum:textBlockItemType | duration |
| r18.c0 | Description of accounting policy for fair value measurement [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory | nonnum:textBlockItemType | duration |
| r19.c0 | Description of accounting policy for financial assets [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForFinancialAssetsExplanatory | nonnum:textBlockItemType | duration |
| r20.c0 | Description of accounting policy for financial instruments [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory | nonnum:textBlockItemType | duration |
| r21.c0 | Description of accounting policy for financial liabilities [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory | nonnum:textBlockItemType | duration |
| r22.c0 | Description of accounting policy for foreign currencies [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory | nonnum:textBlockItemType | duration |
| r23.c0 | Description of accounting policy for goods and services tax (GST) [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForGoodsAndServiceTaxExplanatory | nonnum:textBlockItemType | duration |
| r24.c0 | Description of accounting policy for government grants [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForGovernmentGrants | nonnum:textBlockItemType | duration |
| r25.c0 | Description of accounting policy for impairment of financial assets [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory | nonnum:textBlockItemType | duration |
| r26.c0 | Description of accounting policy for impairment of goodwill [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForImpairmentOfGoodwillExplanatory | nonnum:textBlockItemType | duration |
| r27.c0 | Description of accounting policy for impairment of non-financial assets [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory | nonnum:textBlockItemType | duration |
| r28.c0 | Description of accounting policy for impairment of receivables [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForImpairmentOfReceivablesExplanatory | nonnum:textBlockItemType | duration |
| r29.c0 | Description of accounting policy for income tax [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory | nonnum:textBlockItemType | duration |
| r30.c0 | Description of accounting policy for intangible assets [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory | nonnum:textBlockItemType | duration |
| r31.c0 | Description of accounting policy for interest income and expense [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory | nonnum:textBlockItemType | duration |
| r32.c0 | Description of accounting policy for inventories [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories | nonnum:textBlockItemType | duration |
| r33.c0 | Description of accounting policy for investment in associates [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForInvestmentInAssociates | nonnum:textBlockItemType | duration |
| r34.c0 | Description of accounting policy for investments in joint ventures [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForInvestmentsInJointVentures | nonnum:textBlockItemType | duration |
| r35.c0 | Description of accounting policy for investments in subsidiaries [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForInvestmentInSubsidiariesExplanatory | nonnum:textBlockItemType | duration |
| r36.c0 | Description of accounting policy for investments properties [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForInvestmentPropertyExplanatory | nonnum:textBlockItemType | duration |
| r37.c0 | Description of accounting policy for land held for transfer to a subsidiary [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForLandHeldForTransferToSubsidiaryExplanatory | nonnum:textBlockItemType | duration |
| r38.c0 | Description of accounting policy for leases [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory | nonnum:textBlockItemType | duration |
| r39.c0 | Description of accounting policy for management fees [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForManagementFeesExplanatory | nonnum:textBlockItemType | duration |
| r40.c0 | Description of accounting policy for non-financial assets [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForNonFinancialAssetsExplanatory | nonnum:textBlockItemType | duration |
| r41.c0 | Description of accounting policy for other financial liabilities [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForOtherFinancialLiabilitiesExplanatory | nonnum:textBlockItemType | duration |
| r42.c0 | Description of accounting policy for property, plant and equipment [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory | nonnum:textBlockItemType | duration |
| r43.c0 | Description of accounting policy for provisions [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory | nonnum:textBlockItemType | duration |
| r44.c0 | Description of accounting policy for recognition of revenue and other income [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue | nonnum:textBlockItemType | duration |
| r45.c0 | Description of accounting policy for redeemable non-cumulative convertible preference shares [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForRedeemableNonCumulativeConvertiblePreferenceSharesExplanatory | nonnum:textBlockItemType | duration |
| r46.c0 | Description of accounting policy for significant accounting judgements and estimates [text block]/RuleNode_4 | ssmt-mfrs:DescriptionOfAccountingPolicyForSignificantAccountingJudgementsAndEstimatesExplanatory | nonnum:textBlockItemType | duration |
| r47.c0 | Description of accounting policy for transactions with non-controlling interests [text block]/RuleNode_4 | ifrs-full:DescriptionOfAccountingPolicyForTransactionsWithNoncontrollingInterestsExplanatory | nonnum:textBlockItemType | duration |