3.22.0.1 html 327 409 1 false 88 0 false 10 false false R1.htm 100000 - Document - Document and Entity Information Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 100010 - Statement - CONSOLIDATED INCOME STATEMENTS Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/StatementCONSOLIDATEDINCOMESTATEMENTS CONSOLIDATED INCOME STATEMENTS Statements 2 false false R3.htm 100020 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/StatementCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Statements 3 false false R4.htm 100030 - Statement - CONSOLIDATED BALANCE SHEETS Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/StatementCONSOLIDATEDBALANCESHEETS CONSOLIDATED BALANCE SHEETS Statements 4 false false R5.htm 100040 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/StatementCONSOLIDATEDSTATEMENTSOFCHANGESINEQUITY CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY Statements 5 false false R6.htm 100050 - Statement - CONSOLIDATED CASH FLOW STATEMENTS Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/StatementCONSOLIDATEDCASHFLOWSTATEMENTS CONSOLIDATED CASH FLOW STATEMENTS Statements 6 false false R7.htm 100060 - Disclosure - General information Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureGeneralInformation General information Notes 7 false false R8.htm 100070 - Disclosure - Principal accounting policies Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosurePrincipalAccountingPolicies Principal accounting policies Notes 8 false false R9.htm 100080 - Disclosure - Revenue Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureRevenue Revenue Notes 9 false false R10.htm 100090 - Disclosure - Segment reporting Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureSegmentReporting Segment reporting Notes 10 false false R11.htm 100100 - Disclosure - Operating loss Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOperatingLoss Operating loss Notes 11 false false R12.htm 100110 - Disclosure - Directors and staff costs Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureDirectorsAndStaffCosts Directors and staff costs Notes 12 false false R13.htm 100120 - Disclosure - Other losses Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOtherLosses Other losses Notes 13 false false R14.htm 100130 - Disclosure - Finance and other expenses Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinanceAndOtherExpenses Finance and other expenses Notes 14 false false R15.htm 100140 - Disclosure - Finance and other income Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinanceAndOtherIncome Finance and other income Notes 15 false false R16.htm 100150 - Disclosure - Taxation Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTaxation Taxation Notes 16 false false R17.htm 100160 - Disclosure - Loss per ordinary equity share (basic and diluted) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureLossPerOrdinaryEquityShareBasicAndDiluted Loss per ordinary equity share (basic and diluted) Notes 17 false false R18.htm 100170 - Disclosure - Property, plant and equipment Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosurePropertyPlantAndEquipment Property, plant and equipment Notes 18 false false R19.htm 100180 - Disclosure - Goodwill Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureGoodwill Goodwill Notes 19 false false R20.htm 100190 - Disclosure - Other intangible assets Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOtherIntangibleAssets Other intangible assets Notes 20 false false R21.htm 100200 - Disclosure - Cash and cash equivalents Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureCashAndCashEquivalents Cash and cash equivalents Notes 21 false false R22.htm 100210 - Disclosure - Derivative Financial Instruments Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstruments Derivative Financial Instruments Notes 22 false false R23.htm 100220 - Disclosure - Financial assets at amortized cost Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialAssetsAtAmortizedCost Financial assets at amortized cost Notes 23 false false R24.htm 100230 - Disclosure - Other current assets Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOtherCurrentAssets Other current assets Notes 24 false false R25.htm 100240 - Disclosure - Trade receivables Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTradeReceivables Trade receivables Notes 25 false false R26.htm 100250 - Disclosure - Trade and other payables Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTradeAndOtherPayables Trade and other payables Notes 26 false false R27.htm 100260 - Disclosure - Lease liability Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureLeaseLiability Lease liability Notes 27 false false R28.htm 100270 - Disclosure - Contract liabilities Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureContractLiabilities Contract liabilities Notes 28 false false R29.htm 100280 - Disclosure - Deferred tax Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureDeferredTax Deferred tax Notes 29 false false R30.htm 100290 - Disclosure - Share capital Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureShareCapital Share capital Notes 30 false false R31.htm 100300 - Disclosure - Equity-settled share-based payments Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureEquitySettledShareBasedPayments Equity-settled share-based payments Notes 31 false false R32.htm 100310 - Disclosure - Capital reserves Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureCapitalReserves Capital reserves Notes 32 false false R33.htm 100320 - Disclosure - Capital commitments and contingent liabilities Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureCapitalCommitmentsAndContingentLiabilities Capital commitments and contingent liabilities Notes 33 false false R34.htm 100330 - Disclosure - Commitments under short leases Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureCommitmentsUnderShortLeases Commitments under short leases Notes 34 false false R35.htm 100340 - Disclosure - Financial instruments and risk management Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialInstrumentsAndRiskManagement Financial instruments and risk management Notes 35 false false R36.htm 100350 - Disclosure - Notes to the cash flow statement Notes http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureNotesToCashFlowStatement Notes to the cash flow statement Notes 36 false false R37.htm 100360 - Disclosure - Related party transactions Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureRelatedPartyTransactions Related party transactions Notes 37 false false R38.htm 100370 - Disclosure - Post Balance Sheet Events Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosurePostBalanceSheetEvents Post Balance Sheet Events Notes 38 false false R39.htm 100380 - Disclosure - Principal accounting policies (Policies) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosurePrincipalAccountingPoliciesPolicies Principal accounting policies (Policies) Policies 39 false false R40.htm 100390 - Disclosure - Revenue (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureRevenueTables Revenue (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureRevenue 40 false false R41.htm 100400 - Disclosure - Segment reporting (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureSegmentReportingTables Segment reporting (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureSegmentReporting 41 false false R42.htm 100410 - Disclosure - Operating loss (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOperatingLossTables Operating loss (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOperatingLoss 42 false false R43.htm 100420 - Disclosure - Directors and staff costs (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureDirectorsAndStaffCostsTables Directors and staff costs (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureDirectorsAndStaffCosts 43 false false R44.htm 100430 - Disclosure - Other losses (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOtherLossesTables Other losses (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOtherLosses 44 false false R45.htm 100440 - Disclosure - Finance and other expenses (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinanceAndOtherExpensesTables Finance and other expenses (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinanceAndOtherExpenses 45 false false R46.htm 100450 - Disclosure - Finance and other income (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinanceAndOtherIncomeTables Finance and other income (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinanceAndOtherIncome 46 false false R47.htm 100460 - Disclosure - Taxation (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTaxationTables Taxation (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTaxation 47 false false R48.htm 100470 - Disclosure - Property, plant and equipment (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosurePropertyPlantAndEquipmentTables Property, plant and equipment (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosurePropertyPlantAndEquipment 48 false false R49.htm 100480 - Disclosure - Goodwill (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureGoodwillTables Goodwill (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureGoodwill 49 false false R50.htm 100490 - Disclosure - Other Intangible Assets (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOtherIntangibleAssetsTables Other Intangible Assets (Tables) Tables 50 false false R51.htm 100500 - Disclosure - Cash and cash equivalents (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureCashAndCashEquivalentsTables Cash and cash equivalents (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureCashAndCashEquivalents 51 false false R52.htm 100510 - Disclosure - Derivative Financial Instruments (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstrumentsTables Derivative Financial Instruments (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstruments 52 false false R53.htm 100520 - Disclosure - Financial assets at amortized cost (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialAssetsAtAmortizedCostTables Financial assets at amortized cost (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialAssetsAtAmortizedCost 53 false false R54.htm 100530 - Disclosure - Other current assets (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOtherCurrentAssetsTables Other current assets (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOtherCurrentAssets 54 false false R55.htm 100540 - Disclosure - Trade receivables (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTradeReceivablesTables Trade receivables (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTradeReceivables 55 false false R56.htm 100550 - Disclosure - Trade and other payables (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTradeAndOtherPayablesTables Trade and other payables (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTradeAndOtherPayables 56 false false R57.htm 100560 - Disclosure - Lease liability (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureLeaseLiabilityTables Lease liability (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureLeaseLiability 57 false false R58.htm 100570 - Disclosure - Contract liabilities (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureContractLiabilitiesTables Contract liabilities (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureContractLiabilities 58 false false R59.htm 100580 - Disclosure - Deferred tax (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureDeferredTaxTables Deferred tax (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureDeferredTax 59 false false R60.htm 100590 - Disclosure - Share capital (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureShareCapitalTables Share capital (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureShareCapital 60 false false R61.htm 100600 - Disclosure - Equity-settled share-based payments (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureEquitySettledShareBasedPaymentsTables Equity-settled share-based payments (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureEquitySettledShareBasedPayments 61 false false R62.htm 100610 - Disclosure - Capital reserves (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureCapitalReservesTables Capital reserves (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureCapitalReserves 62 false false R63.htm 100620 - Disclosure - Financial instruments and risk management (Tables) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialInstrumentsAndRiskManagementTables Financial instruments and risk management (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialInstrumentsAndRiskManagement 63 false false R64.htm 100630 - Disclosure - Notes to the cash flow statement (Tables) Notes http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureNotesToCashFlowStatementTables Notes to the cash flow statement (Tables) Tables http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureNotesToCashFlowStatement 64 false false R65.htm 100640 - Disclosure - Principal Accounting Policies - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosurePrincipalAccountingPoliciesAdditionalInformationDetails Principal Accounting Policies - Additional Information (Details) Details 65 false false R66.htm 100650 - Disclosure - Revenue - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureRevenueAdditionalInformationDetails Revenue - Additional Information (Details) Details 66 false false R67.htm 100660 - Disclosure - Revenue - Summary of Disaggregation of Revenue from Contracts with Customers (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureRevenueSummaryOfDisaggregationOfRevenueFromContractsWithCustomersDetails Revenue - Summary of Disaggregation of Revenue from Contracts with Customers (Details) Details 67 false false R68.htm 100670 - Disclosure - Segment Reporting - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureSegmentReportingAdditionalInformationDetails Segment Reporting - Additional Information (Details) Details 68 false false R69.htm 100680 - Disclosure - Segment Reporting - Summary of the Analysis of Group's Assets and Revenues by Location (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureSegmentReportingSummaryOfAnalysisOfGroupSAssetsAndRevenuesByLocationDetails Segment Reporting - Summary of the Analysis of Group's Assets and Revenues by Location (Details) Details 69 false false R70.htm 100690 - Disclosure - Operating Loss - Summary of Operating Loss (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOperatingLossSummaryOfOperatingLossDetails Operating Loss - Summary of Operating Loss (Details) Details 70 false false R71.htm 100700 - Disclosure - Directors and Staff Costs - Summary of Staff Costs, Including Directors' Remuneration (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureDirectorsAndStaffCostsSummaryOfStaffCostsIncludingDirectorsRemunerationDetails Directors and Staff Costs - Summary of Staff Costs, Including Directors' Remuneration (Details) Details 71 false false R72.htm 100710 - Disclosure - Directors and Staff Costs - Summary of Total Average Number of Employees (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureDirectorsAndStaffCostsSummaryOfTotalAverageNumberOfEmployeesDetails Directors and Staff Costs - Summary of Total Average Number of Employees (Details) Details 72 false false R73.htm 100720 - Disclosure - Other Losses - Summary of Other Losses (Detail) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOtherLossesSummaryOfOtherLossesDetail Other Losses - Summary of Other Losses (Detail) Details 73 false false R74.htm 100730 - Disclosure - Finance and Other Expenses - Summary of Finance and Other Expenses (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinanceAndOtherExpensesSummaryOfFinanceAndOtherExpensesDetails Finance and Other Expenses - Summary of Finance and Other Expenses (Details) Details 74 false false R75.htm 100740 - Disclosure - Finance and Other Income - Summary of Finance and Other Income (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinanceAndOtherIncomeSummaryOfFinanceAndOtherIncomeDetails Finance and Other Income - Summary of Finance and Other Income (Details) Details 75 false false R76.htm 100750 - Disclosure - Taxation - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTaxationAdditionalInformationDetails Taxation - Additional Information (Details) Details 76 false false R77.htm 100760 - Disclosure - Taxation - Summary of Reconciliation of Tax Credit at Standard Rate of U.K. Corporation Tax to Current Tax Credit (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTaxationSummaryOfReconciliationOfTaxCreditAtStandardRateOfUKCorporationTaxToCurrentTaxCreditDetails Taxation - Summary of Reconciliation of Tax Credit at Standard Rate of U.K. Corporation Tax to Current Tax Credit (Details) Details 77 false false R78.htm 100770 - Disclosure - Taxation - Summary of Reconciliation of Current Tax Credit at Standard Rate of UK Corporation Tax to Current Tax Credit (Parenthetical) (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTaxationSummaryOfReconciliationOfCurrentTaxCreditAtStandardRateOfUKCorporationTaxToCurrentTaxCreditParentheticalDetails Taxation - Summary of Reconciliation of Current Tax Credit at Standard Rate of UK Corporation Tax to Current Tax Credit (Parenthetical) (Details) Details 78 false false R79.htm 100780 - Disclosure - Loss Per Ordinary Equity Share (Basic and Diluted) - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureLossPerOrdinaryEquityShareBasicAndDilutedAdditionalInformationDetails Loss Per Ordinary Equity Share (Basic and Diluted) - Additional Information (Details) Details 79 false false R80.htm 100790 - Disclosure - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosurePropertyPlantAndEquipmentSummaryOfPropertyPlantAndEquipmentDetails Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) Details 80 false false R81.htm 100800 - Disclosure - Goodwill - Summary of Reconciliation of Goodwill (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureGoodwillSummaryOfReconciliationOfGoodwillDetails Goodwill - Summary of Reconciliation of Goodwill (Details) Details 81 false false R82.htm 100810 - Disclosure - Goodwill - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureGoodwillAdditionalInformationDetails Goodwill - Additional Information (Details) Details 82 false false R83.htm 100820 - Disclosure - Other Intangible Assets - Summary of Other Intangible Assets (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOtherIntangibleAssetsSummaryOfOtherIntangibleAssetsDetails Other Intangible Assets - Summary of Other Intangible Assets (Details) Details 83 false false R84.htm 100830 - Disclosure - Other Intangible Assets - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOtherIntangibleAssetsAdditionalInformationDetails Other Intangible Assets - Additional Information (Details) Details 84 false false R85.htm 100840 - Disclosure - Cash and cash equivalents - Summary of Cash and Cash Equivalents (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureCashAndCashEquivalentsSummaryOfCashAndCashEquivalentsDetails Cash and cash equivalents - Summary of Cash and Cash Equivalents (Details) Details 85 false false R86.htm 100850 - Disclosure - Cash and cash equivalents - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureCashAndCashEquivalentsAdditionalInformationDetails Cash and cash equivalents - Additional Information (Details) Details 86 false false R87.htm 100860 - Disclosure - Derivative Financial Instruments - Summary of Derivatives Carried at Fair Value (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureDerivativeFinancialInstrumentsSummaryOfDerivativesCarriedAtFairValueDetails Derivative Financial Instruments - Summary of Derivatives Carried at Fair Value (Details) Details 87 false false R88.htm 100870 - Disclosure - Financial Assets at Amortized Cost - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialAssetsAtAmortizedCostAdditionalInformationDetails Financial Assets at Amortized Cost - Additional Information (Details) Details 88 false false R89.htm 100880 - Disclosure - Financial Assets at Amortized Cost - Summary of Financial Assets at Amortized Cost (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialAssetsAtAmortizedCostSummaryOfFinancialAssetsAtAmortizedCostDetails Financial Assets at Amortized Cost - Summary of Financial Assets at Amortized Cost (Details) Details 89 false false R90.htm 100890 - Disclosure - Other current assets - Summary of Other Current Assets (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureOtherCurrentAssetsSummaryOfOtherCurrentAssetsDetails Other current assets - Summary of Other Current Assets (Details) Details 90 false false R91.htm 100900 - Disclosure - Trade receivables - Summary of Trade Receivables (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTradeReceivablesSummaryOfTradeReceivablesDetails Trade receivables - Summary of Trade Receivables (Details) Details 91 false false R92.htm 100910 - Disclosure - Trade receivables - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTradeReceivablesAdditionalInformationDetails Trade receivables - Additional Information (Details) Details 92 false false R93.htm 100920 - Disclosure - Trade and Other Payables - Summary of Trade and Other Payables (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureTradeAndOtherPayablesSummaryOfTradeAndOtherPayablesDetails Trade and Other Payables - Summary of Trade and Other Payables (Details) Details 93 false false R94.htm 100930 - Disclosure - Lease liability - Summary of Lease Liability (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureLeaseLiabilitySummaryOfLeaseLiabilityDetails Lease liability - Summary of Lease Liability (Details) Details 94 false false R95.htm 100940 - Disclosure - Lease liability - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureLeaseLiabilityAdditionalInformationDetails Lease liability - Additional Information (Details) Details 95 false false R96.htm 100950 - Disclosure - Contract Liabilities - Schedule of Contract Liabilities (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureContractLiabilitiesScheduleOfContractLiabilitiesDetails Contract Liabilities - Schedule of Contract Liabilities (Details) Details 96 false false R97.htm 100960 - Disclosure - Contract Liabilities - Schedule of Change in Contract Liabilities (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureContractLiabilitiesScheduleOfChangeInContractLiabilitiesDetails Contract Liabilities - Schedule of Change in Contract Liabilities (Details) Details 97 false false R98.htm 100970 - Disclosure - Deferred tax - Summary of Unrecognized Deferred Tax Assets (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureDeferredTaxSummaryOfUnrecognizedDeferredTaxAssetsDetails Deferred tax - Summary of Unrecognized Deferred Tax Assets (Details) Details 98 false false R99.htm 100980 - Disclosure - Deferred tax - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureDeferredTaxAdditionalInformationDetails Deferred tax - Additional Information (Details) Details 99 false false R100.htm 100990 - Disclosure - Share Capital - Summary of Share Capital (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureShareCapitalSummaryOfShareCapitalDetails Share Capital - Summary of Share Capital (Details) Details 100 false false R101.htm 101000 - Disclosure - Share Capital - Summary of Share Capital (Parenthetical) (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureShareCapitalSummaryOfShareCapitalParentheticalDetails Share Capital - Summary of Share Capital (Parenthetical) (Details) Details 101 false false R102.htm 101010 - Disclosure - Share Capital - Summary of Details of Shares Issued (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureShareCapitalSummaryOfDetailsOfSharesIssuedDetails Share Capital - Summary of Details of Shares Issued (Details) Details 102 false false R103.htm 101020 - Disclosure - Share Capital - Summary of Details of Shares Issued (Parenthetical) (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureShareCapitalSummaryOfDetailsOfSharesIssuedParentheticalDetails Share Capital - Summary of Details of Shares Issued (Parenthetical) (Details) Details 103 false false R104.htm 101030 - Disclosure - Share Capital - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureShareCapitalAdditionalInformationDetails Share Capital - Additional Information (Details) Details 104 false false R105.htm 101040 - Disclosure - Share Capital - Summary of Options Outstanding (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureShareCapitalSummaryOfOptionsOutstandingDetails Share Capital - Summary of Options Outstanding (Details) Details 105 false false R106.htm 101050 - Disclosure - Equity-settled share-based payments - Summary of Options (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureEquitySettledShareBasedPaymentsSummaryOfOptionsDetails Equity-settled share-based payments - Summary of Options (Details) Details 106 false false R107.htm 101060 - Disclosure - Equity-settled share-based payments - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureEquitySettledShareBasedPaymentsAdditionalInformationDetails Equity-settled share-based payments - Additional Information (Details) Details 107 false false R108.htm 101070 - Disclosure - Equity-settled share-based payments - Summery of Fair Value of Options Granted, Calculated Using Binomial or Monte Carlo Model and Inputs Into the Model (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureEquitySettledShareBasedPaymentsSummeryOfFairValueOfOptionsGrantedCalculatedUsingBinomialOrMonteCarloModelAndInputsIntoModelDetails Equity-settled share-based payments - Summery of Fair Value of Options Granted, Calculated Using Binomial or Monte Carlo Model and Inputs Into the Model (Details) Details 108 false false R109.htm 101080 - Disclosure - Capital Reserves - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureCapitalReservesAdditionalInformationDetails Capital Reserves - Additional Information (Details) Details 109 false false R110.htm 101090 - Disclosure - Capital Reserves - Summary of Capital Reserves (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureCapitalReservesSummaryOfCapitalReservesDetails Capital Reserves - Summary of Capital Reserves (Details) Details 110 false false R111.htm 101100 - Disclosure - Capital Commitments and Contingent Liabilities - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureCapitalCommitmentsAndContingentLiabilitiesAdditionalInformationDetails Capital Commitments and Contingent Liabilities - Additional Information (Details) Details 111 false false R112.htm 101110 - Disclosure - Commitments under short leases - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureCommitmentsUnderShortLeasesAdditionalInformationDetails Commitments under short leases - Additional Information (Details) Details 112 false false R113.htm 101120 - Disclosure - Financial instruments and risk management - Summary of Categories of Financial Assets (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialInstrumentsAndRiskManagementSummaryOfCategoriesOfFinancialAssetsDetails Financial instruments and risk management - Summary of Categories of Financial Assets (Details) Details 113 false false R114.htm 101130 - Disclosure - Financial instruments and risk management - Summary of Financial Liabilities by Category (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialInstrumentsAndRiskManagementSummaryOfFinancialLiabilitiesByCategoryDetails Financial instruments and risk management - Summary of Financial Liabilities by Category (Details) Details 114 false false R115.htm 101140 - Disclosure - Financial instruments and risk management - Summary of Credit Quality of Financial Assets (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialInstrumentsAndRiskManagementSummaryOfCreditQualityOfFinancialAssetsDetails Financial instruments and risk management - Summary of Credit Quality of Financial Assets (Details) Details 115 false false R116.htm 101150 - Disclosure - Financial instruments and risk management - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialInstrumentsAndRiskManagementAdditionalInformationDetails Financial instruments and risk management - Additional Information (Details) Details 116 false false R117.htm 101160 - Disclosure - Financial instruments and risk management - Summary of Financial Assets and Liabilities Denominated in Euros and Translated into Sterling at Closing Rate (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialInstrumentsAndRiskManagementSummaryOfFinancialAssetsAndLiabilitiesDenominatedInEurosAndTranslatedIntoSterlingAtClosingRateDetails Financial instruments and risk management - Summary of Financial Assets and Liabilities Denominated in Euros and Translated into Sterling at Closing Rate (Details) Details 117 false false R118.htm 101170 - Disclosure - Financial instruments and risk management - Summary of Impact of Additional Weakening or Strengthening of Sterling Against Euro (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialInstrumentsAndRiskManagementSummaryOfImpactOfAdditionalWeakeningOrStrengtheningOfSterlingAgainstEuroDetails Financial instruments and risk management - Summary of Impact of Additional Weakening or Strengthening of Sterling Against Euro (Details) Details 118 false false R119.htm 101180 - Disclosure - Financial instruments and risk management - Summary of Impact of Additional Weakening or Strengthening of Sterling Against U.S. Dollar (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureFinancialInstrumentsAndRiskManagementSummaryOfImpactOfAdditionalWeakeningOrStrengtheningOfSterlingAgainstUSDollarDetails Financial instruments and risk management - Summary of Impact of Additional Weakening or Strengthening of Sterling Against U.S. Dollar (Details) Details 119 false false R120.htm 101190 - Disclosure - Notes to the cash flow statement - Summary of Changes in Liabilities Arising from Financing Activities (Details) Notes http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureNotesToCashFlowStatementSummaryOfChangesInLiabilitiesArisingFromFinancingActivitiesDetails Notes to the cash flow statement - Summary of Changes in Liabilities Arising from Financing Activities (Details) Details 120 false false R121.htm 101200 - Disclosure - Related party transactions - Additional Information (Details) Sheet http://www.silence-therapeutics.com/20211231/taxonomy/role/DisclosureRelatedPartyTransactionsAdditionalInformationDetails Related party transactions - Additional Information (Details) Details 121 false false All Reports Book All Reports sln-20f_20211231.htm sln-20211231.xsd sln-20211231_cal.xml sln-20211231_def.xml sln-20211231_lab.xml sln-20211231_pre.xml sln-ex121_12.htm sln-ex122_9.htm sln-ex131_10.htm sln-ex132_7.htm sln-ex151_385.htm sln-ex23_11.htm sln-ex24_8.htm sln-ex47_373.htm gpicw2tr4hq3000001.jpg gpicw2tr4hq3000002.jpg gpicw2tr4hq3000003.jpg gpicw2tr4hq3000004.jpg gpicw2tr4hq3000005.jpg gpicw2tr4hq3000006.jpg gpicw2tr4hq3000007.jpg gpicw2tr4hq3000008.jpg gpicw2tr4hq3000009.jpg http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full http://xbrl.sec.gov/dei/2021q4 true true