ASLAN Pharmaceuticals Ltd (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 100000 - Document - Document and Entity Information Network

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3 Document And Entity Information [Abstract] Abstract asln:DocumentAndEntityInformationAbstract
4 Document Type Concept (Submission Type) For Period dei:DocumentType
5 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
6 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
7 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
8 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
9 Trading Symbol Concept (Text/String) For Period dei:TradingSymbol
10 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
11 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
12 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
13 Entity Well-known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
14 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
15 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
16 Entity Emerging Growth Company Concept (Yes/No) For Period dei:EntityEmergingGrowthCompany
17 Entity Ex Transition Period Concept (Yes/No) For Period dei:EntityExTransitionPeriod
18 Entity Shell Company Concept (Yes/No) For Period dei:EntityShellCompany
19 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
20 100010 - Statement - Consolidated Balance Sheets Network

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21 Implied Table Table

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22 Statement Of Financial Position [Abstract] Abstract ifrs-full:StatementOfFinancialPositionAbstract
23 ASSETS Abstract ifrs-full:AssetsAbstract
24 CURRENT ASSETS Abstract ifrs-full:CurrentAssetsAbstract
25 Cash and cash equivalents (Notes 4 and 6) Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
26 Prepayments Concept (Monetary) As Of Debit ifrs-full:Prepayments
27 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
28 NON-CURRENT ASSETS Abstract ifrs-full:NoncurrentAssetsAbstract
29 Financial assets at fair value through profit or loss (Notes 4, 7 and 15) Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLoss
30 Financial assets at fair value through other comprehensive income (Notes 4, 8 and 15) Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAtFairValueThroughOtherComprehensiveIncome
31 Property, plant and equipment (Notes 4 and 9) Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
32 Intangible assets (Notes 4, 5, 10 and 15) Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
33 Refundable deposits Concept (Monetary) As Of Debit ifrs-full:LongtermDeposits
34 Total non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
35 TOTAL ASSETS Concept (Monetary) As Of Debit ifrs-full:Assets
36 LIABILITIES AND EQUITY Abstract ifrs-full:EquityAndLiabilitiesAbstract
37 CURRENT LIABILITIES Abstract ifrs-full:CurrentLiabilitiesAbstract
38 Trade payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
39 Other payables (Notes 11 and 19) Concept (Monetary) As Of Credit ifrs-full:OtherCurrentPayables
40 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
41 NON-CURRENT LIABILITIES Abstract ifrs-full:NoncurrentProvisionsAbstract
42 Long-term borrowings (Note 12) Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
43 Other non-current liabilities (Note 19) Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
44 Total non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
45 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
46 EQUITY (Note 14) Abstract ifrs-full:EquityAbstract
47 Ordinary shares Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
48 Capital surplus Concept (Monetary) As Of Credit asln:CapitalSurplus
49 Accumulated deficits Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
50 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
51 TOTAL LIABILITIES AND EQUITY Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
52 100020 - Statement - Consolidated Statement of Comprehensive Loss Network

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53 Implied Table Table

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54 Statement Of Comprehensive Income [Abstract] Abstract ifrs-full:StatementOfComprehensiveIncomeAbstract
55 NET REVENUE (Notes 3, 4, 15 and 24) Concept (Monetary) For Period Credit ifrs-full:RevenueFromContractsWithCustomers
56 COST OF REVENUE (Note 15) Concept (Monetary) For Period Debit ifrs-full:CostOfSales
57 OPERATING EXPENSES (Notes 13, 16 and 19) Abstract ifrs-full:ExpenseByNatureAbstract
58 General and administrative expenses Concept (Monetary) For Period Debit ifrs-full:GeneralAndAdministrativeExpense
59 Research and development expenses Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
60 LOSS FROM OPERATIONS Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
61 NON-OPERATING INCOME AND EXPENSES Abstract asln:NonOperatingIncomeAndExpensesAbstract
62 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
63 Other income (Note 15) Concept (Monetary) For Period Credit us-gaap:OtherIncome
64 Other gains and losses (Note 16) Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
65 Finance costs (Notes 4 and 16) Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
66 Total non-operating income and expenses Concept (Monetary) For Period Credit asln:NetNonOperatingIncomeExpense
67 LOSS BEFORE INCOME TAX Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
68 INCOME TAX EXPENSE (Notes 4, 5 and 17) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
69 NET LOSS FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
70 TOTAL COMPREHENSIVE LOSS FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
71 LOSS PER SHARE (Note 18) Abstract ifrs-full:BasicEarningsPerShareAbstract
72 Basic and diluted Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
73 100030 - Statement - Consolidated Statement of Changes in Equity Network

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74 Statement Of Changes In Equity [Table] Table

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75 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
76 Equity [member] Member ifrs-full:EquityMember
77 Ordinary Shares Member ifrs-full:IssuedCapitalMember
78 Capital Surplus Member ifrs-full:SharePremiumMember
79 Accumulated Deficits Member ifrs-full:RetainedEarningsMember
80 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
81 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
82 Preference Shares Member ifrs-full:PreferenceSharesMember
83 Ordinary Shares Member ifrs-full:OrdinarySharesMember
84 Share Options Reserve Member asln:ShareOptionsReserveMember
85 Statement Of Changes In Equity [Line Items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
86 Beginning balance Concept (Monetary) As Of Credit ifrs-full:Equity
87 Beginning balance, share Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
88 Issuance of preference shares Concept (Shares) For Period asln:PreferredSharesIssued
89 Conversion to ordinary shares from preference shares Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughConversionOfConvertibleInstruments
90 Conversion to ordinary shares from preference shares, share Concept (Shares) For Period asln:ConversionOfConvertibleInstrument
91 Adjustment of par value to NT$10 (US$0.6383) Concept (Monetary) For Period Credit asln:OrdinaryShareParValueAdjustment
92 Issuance of new share capital (Notes 14 and 19) Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
93 Issue of new share capital, share Concept (Shares) For Period ifrs-full:IncreaseDecreaseInNumberOfOrdinarySharesIssued
94 Transaction costs attributable to the issuance of ordinary shares Concept (Monetary) For Period Debit ifrs-full:ShareIssueRelatedCost
95 Issuance of ordinary shares under employee share option plan (Note 19) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfOptions
96 Issuance of ordinary shares under employee share option plan, share Concept (Shares) For Period asln:IncreaseDecreaseThroughExerciseOfStockOptions
97 Recognition of employee share options by the Company (Note 19) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
98 Net loss Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
99 Total comprehensive loss Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
100 Ending balance, share Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
101 100040 - Statement - Consolidated Statement of Changes in Equity (Parenthetical) Network

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102 Implied Table Table

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103 Statement Of Changes In Equity [Abstract] Abstract ifrs-full:StatementOfChangesInEquityAbstract
104 Adjustment to ordinary shares par value per share Concept (Share) As Of asln:AdjustmentToOrdinarySharesParValuePerShare
105 100050 - Statement - Consolidated Statement of Cash Flows Network

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106 Implied Table Table

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107 Statement Of Cash Flows [Abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
108 CASH FLOWS FROM OPERATING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
109 Loss before income tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
110 Adjustments for: Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
111 Depreciation expenses Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationExpense
112 Amortization expenses Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForAmortisationExpense
113 Finance costs Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForFinanceCosts
114 Interest income Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForInterestIncome
115 Compensation costs of share-based payment transactions Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
116 Loss on disposal of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment
117 Unrealized (gain) loss on foreign exchange, net Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains
118 Gain on disposal of licensed rights Concept (Monetary) For Period Debit asln:AdjustmentsForGainLossOnDisposalOfLicensedRight
119 Changes in operating assets and liabilities Abstract asln:ChangesInOperatingAssetsAndLiabilitiesAbstract
120 Increase in financial assets mandatorily classified as at fair value through profit or loss Concept (Monetary) For Period Credit asln:AdjustmentsForIncreaseInFinancialAssetsMandatorilyClassifiedAsAtFairValueThroughProfitOrLoss
121 (Increase) decrease in accounts receivable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable
122 (Increase) decrease in prepayments Concept (Monetary) For Period Debit asln:AdjustmentsForIncreaseDecreaseInPrepayments
123 Increase in trade payables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAccountPayable
124 Increase (decrease) in other payables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInOtherOperatingPayables
125 Cash used in operations Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperations
126 Interest received Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsOperatingActivities
127 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
128 Income tax paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities
129 Net cash used in operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
130 CASH FLOWS FROM INVESTING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
131 Payments for property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
132 Proceeds from disposal of property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
133 Payments for intangible assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities
134 Increase in refundable deposits Concept (Monetary) For Period Debit asln:IncreaseDecreaseInRefundableDeposits
135 Net cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
136 CASH FLOWS FROM FINANCING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
137 Proceeds from long-term borrowings Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
138 Repayments of long-term borrowings Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfNoncurrentBorrowings
139 Issuance of preference shares Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssueOfPreferenceShares
140 Proceeds from new share capital Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
141 Proceeds from exercise of employee share options Concept (Monetary) For Period Debit ifrs-full:ProceedsFromExerciseOfOptions
142 Payments for transaction costs attributable to the issuance of ordinary shares Concept (Monetary) For Period Credit ifrs-full:PaymentsForShareIssueCosts
143 Net cash generated from financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
144 NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
145 CASH AND CASH EQUIVALENTS AT THE BEGINNING OF THE YEAR Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
146 CASH AND CASH EQUIVALENTS AT THE END OF THE YEAR Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
147 100060 - Disclosure - General Information Network

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149 Disclosure Of Detailed Information About Businesses And Intragroup Relationship Of Group [Abstract] Abstract asln:DisclosureOfDetailedInformationAboutBusinessesAndIntragroupRelationshipOfGroupAbstract
150 General Information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory
151 100070 - Disclosure - Approval of Financial Statements Network

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153 Disclosure Of Authorization To Issue Financial Statements [Abstract] Abstract asln:DisclosureOfAuthorizationToIssueFinancialStatementsAbstract
154 Approval of Financial Statements Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAuthorisationOfFinancialStatementsExplanatory
155 100080 - Disclosure - Application of New Amended and Revised Standards and Interpretations Network

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156 Implied Table Table

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157 Disclosure Of Initial Application Of Standards Or Interpretations [Abstract] Abstract ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsAbstract
158 Application of New Amended and Revised Standards and Interpretations Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory
159 100090 - Disclosure - Summary of Significant Accounting Policies Network

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160 Implied Table Table

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161 Disclosure Of Significant Accounting Policies [Abstract] Abstract asln:DisclosureOfSignificantAccountingPoliciesAbstract
162 Summary of Significant Accounting Policies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
163 100100 - Disclosure - Critical Accounting Judgments and Key Sources of Estimation Uncertainty Network

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164 Implied Table Table

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165 Disclosure Of Accounting Judgements And Estimates [Abstract] Abstract asln:DisclosureOfAccountingJudgementsAndEstimatesAbstract
166 Critical Accounting Judgments and Key Sources of Estimation Uncertainty Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory
167 100110 - Disclosure - Cash and Cash Equivalents Network

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168 Implied Table Table

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169 Cash And Cash Equivalents [Abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
170 Cash and Cash Equivalents Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory
171 100120 - Disclosure - Financial Assets at Fair Value Through Profit or Loss Network

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172 Implied Table Table

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173 Financial Assets At Fair Value Through Profit Or Loss [Abstract] Abstract ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossAbstract
174 Financial Assets at Fair Value Through Profit or Loss Concept (Text Block (HTML)) For Period asln:DisclosureOfFinancialAssetsAtFairValueThroughProfitOrLossExplanatory
175 100130 - Disclosure - Financial Assets at Fair Value Through Other Comprehensive Income Network

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176 Implied Table Table

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177 Financial Assets At Fair Value Through Other Comprehensive Income [Abstract] Abstract ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeAbstract
178 Financial Assets At Fair Value Through Other Comprehensive Income Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueMeasurementExplanatory
179 100140 - Disclosure - Property, Plant And Equipment Network

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180 Implied Table Table

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181 Disclosure Of Property Plant And Equipment [Abstract] Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
182 Property, Plant and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
183 100150 - Disclosure - Intangible Assets Network

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184 Implied Table Table

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185 Disclosure Of Intangible Assets [Abstract] Abstract ifrs-full:DisclosureOfIntangibleAssetsAbstract
186 Intangible Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsExplanatory
187 100160 - Disclosure - Other Payables Network

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188 Implied Table Table

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189 Trade And Other Payables [Abstract] Abstract ifrs-full:TradeAndOtherPayablesAbstract
190 Other Payables Concept (Text Block (HTML)) For Period asln:DisclosureOfOtherPayablesExplanatory
191 100170 - Disclosure - Long Term Borrowings Network

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192 Implied Table Table

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193 Borrowings [Abstract] Abstract ifrs-full:BorrowingsAbstract
194 Long Term Borrowings Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBorrowingsExplanatory
195 100180 - Disclosure - Retirement Benefit Plans Network

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196 Implied Table Table

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197 Disclosure Of Defined Benefit Plans [Abstract] Abstract ifrs-full:DisclosureOfDefinedBenefitPlansAbstract
198 Retirement Benefit Plans Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEmployeeBenefitsExplanatory
199 100190 - Disclosure - Equity Network

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200 Implied Table Table

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201 Equity [Abstract] Abstract ifrs-full:EquityAbstract
202 Equity Concept (Text Block (HTML)) For Period asln:DisclosureOfEquityExplanatory
203 100200 - Disclosure - License Agreements Network

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204 Implied Table Table

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205 Disclosure Of Transactions Between Related Parties [Abstract] Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
206 License Agreements Concept (Text Block (HTML)) For Period asln:DisclosureOfLicenseAgreementsExplanatory
207 100210 - Disclosure - Loss Before Income Tax Network

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208 Implied Table Table

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209 Profit Loss [Abstract] Abstract ifrs-full:ProfitLossAbstract
210 Loss Before Income Tax Concept (Text Block (HTML)) For Period asln:LossBeforeIncomeTaxExplanatory
211 100220 - Disclosure - Income Taxes Network

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213 Income Tax [Abstract] Abstract asln:IncomeTaxAbstract
214 Income Taxes Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
215 100230 - Disclosure - Loss Per Share Network

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216 Implied Table Table

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217 Earnings Per Share [Abstract] Abstract ifrs-full:EarningsPerShareAbstract
218 Loss Per Share Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEarningsPerShareExplanatory
219 100240 - Disclosure - Share-Based Payment Arrangements Network

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220 Implied Table Table

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222 Share-Based Payment Arrangements Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory
223 100250 - Disclosure - Operating Lease Arrangement Network

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225 Disclosure Of Finance Lease And Operating Lease By Lessee [Abstract] Abstract ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract
226 Operating Lease Arrangement Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory
227 100260 - Disclosure - Capital Management Network

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229 Disclosure Of Capital Management [Abstract] Abstract asln:DisclosureOfCapitalManagementAbstract
230 Capital Management Concept (Text Block (HTML)) For Period asln:DisclosureOfCapitalManagementExplanatory
231 100270 - Disclosure - Financial Instruments Network

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234 Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsExplanatory
235 100280 - Disclosure - Transactions with Related Parties Network

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238 Transactions with Related Parties Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
239 100290 - Disclosure - Segment Information Network

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241 Disclosure Of Operating Segments [Abstract] Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
242 Segment Information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
243 100300 - Disclosure - Summary of Significant Accounting Policies (Policies) Network

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245 Disclosure Of Significant Accounting Policies [Abstract] Abstract asln:DisclosureOfSignificantAccountingPoliciesAbstract
246 Statement of compliance Concept (Text Block (HTML)) For Period asln:DescriptionOfAccountingPolicyForStatementOfComplianceExplanatory
247 Basis of preparation Concept (Text Block (HTML)) For Period asln:DescriptionOfAccountingPolicyForBasisOfPreparationExplanatory
248 Classification of current and non-current assets and liabilities Concept (Text Block (HTML)) For Period asln:DescriptionOfAccountingPolicyForClassificationOfCurrentAndNonCurrentAssetsAndLiabilitiesExplanatory
249 Basis of consolidation Concept (Text Block (HTML)) For Period asln:DescriptionOfAccountingPolicyForBasisOfConsolidation
250 Foreign currencies Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
251 Property, plant and equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
252 Intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory
253 Impairment of tangible and intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory
254 Financial instruments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
255 Revenue recognition Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
256 Research and development expenses Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory
257 Leasing Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory
258 Retirement benefits Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
259 Share-based payment arrangements Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
260 Taxation Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
261 100310 - Disclosure - General Information (Tables) Network

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269 Schedule of Anticipated Impact On Assets and Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations
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286 Summary of Cost and Accumulated Depreciation of Property Plant and Equipment Concept (Text Block (HTML)) For Period asln:DisclosureOfCostAndAccumulatedDepreciationOfPropertyPlantAndEquipmentExplanatory
287 Summary of Estimated Useful lives of Property Plant and Equipment Concept (Text Block (HTML)) For Period asln:DisclosurePropertyPlantAndEquipmentUsefulLivesForDepreciationExplanatory
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312 Schedule of Employee Benefits Expense Concept (Text Block (HTML)) For Period asln:DisclosureOfEmployeeBenefitsExpenseExplanatory
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339 Summary of Categories of Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory
340 Summary of Group's Significant Financial Assets and Liabilities Denominated in Foreign Currencies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory
341 Sensitivity Analysis of Foreign Currency Risk Concept (Text Block (HTML)) For Period ifrs-full:SensitivityAnalysisForEachTypeOfMarketRisk
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414 100540 - Disclosure - Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Details) Network

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499 Implied Table Table

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502 Payables for professional fees Concept (Monetary) As Of Credit asln:PayablesForProfessionalFeesCurrent
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505 Others Concept (Monetary) As Of Credit ifrs-full:OtherLiabilities
506 Other Payables Concept (Monetary) As Of Credit ifrs-full:OtherCurrentPayables
507 100640 - Disclosure - Long Term Borrowings - Summary of Loans (Details) Network

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531 Borrowings, interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
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537 100660 - Disclosure - Retirement Benefits Plans - Additional Information (Details) Network

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550 Number of shares issued and fully paid Concept (Shares) As Of ifrs-full:NumberOfSharesIssuedAndFullyPaid
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569 Share split ratio Concept (Percent) For Period asln:ShareSplitRatio
570 Number of shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
571 Consideration per share Concept (Share) As Of asln:ValueOfConsiderationPerShareIssued
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575 Weighted-average bid price per share Concept (Share) For Period asln:WeightedAverageBidPricePerShare
576 Proceeds from new share capital Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
577 Offering price per share Concept (Share) For Period asln:OfferingPricePerShare
578 Amount of shares authorized Concept (Monetary) As Of Credit asln:AuthorizedCapital
579 100690 - Disclosure - Equity - Schedule of Capital Surplus (Details) Network

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580 Implied Table Table

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583 Arising from employee share options Concept (Monetary) As Of Credit asln:ArisingFromEmployeeShareOptions
584 Total Concept (Monetary) As Of Credit asln:CapitalSurplus
585 100700 - Disclosure - Equity - Schedule of Accumulated Deficits (Details) Network

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586 Implied Table Table

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588 Accumulated deficits at the beginning of the year Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
589 Net loss Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
590 Accumulated deficits at the end of the year Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
591 100710 - Disclosure - License Agreements - Additional Information (Details) Network

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592 Disclosure Of Transactions Between Related Parties [Table] Table

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602 BioGenetics Co. Ltd Member asln:BioGeneticsCoLtdMember
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612 Percentage of out-licensing proceeds agreed to pay out as royalties Concept (Percent) For Period asln:PercentageOfOutLicensingProceedsAgreedToPayOutAsRoyalties
613 Initial upfront payment Concept (Monetary) For Period Debit asln:InitialUpfrontPayment
614 Additional payment Concept (Monetary) For Period Debit asln:AdditionalInitialUpfrontPayment
615 Development milestone linked payments estimated Concept (Monetary) For Period Debit asln:DevelopmentMilestoneLinkedPaymentsEstimated
616 Regulatory milestones linked payments estimated Concept (Monetary) For Period Debit asln:RegulatoryMilestonesLinkedPaymentsEstimated
617 Commercial milestones linked payments estimated Concept (Monetary) For Period Debit asln:CommercialMilestonesLinkedPaymentsEstimated
618 Percentage of upfront receivable Concept (Percent) For Period asln:PercentageOfUpfrontReceivable
619 Percentage of sublicense agreement ceiling Concept (Percent) For Period asln:PercentageOfSublicenseAgreementCeiling
620 Notice period for termination of agreement Concept (xbrli:durationItemType) For Period asln:NoticePeriodForTerminationOfAgreement
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622 Revenue recognized Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfServices
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624 Agreement amended date Concept (Date) For Period asln:DateOfAgreementAmended
625 Percentage of entity's revenue Concept (Percent) For Period asln:PercentageOfLicensingRevenue
626 Option payment received Concept (Monetary) For Period Debit asln:CollaborativeArrangementOptionPaymentReceived
627 Payment to third parties as payment for proceeds from out-licensing agreement Concept (Monetary) For Period Debit asln:PaymentToThirdPartiesAsPaymentForProceedsFromOutLicensingAgreement
628 Payment to buy back the rights to commercialize Concept (Monetary) For Period Credit ifrs-full:PaymentsFromContractsHeldForDealingOrTradingPurpose
629 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
630 Milestone payment receivable upon achievement Concept (Monetary) For Period Debit asln:MilestonePaymentToBeReceivedUponMilestoneAchievement
631 Collaboration agreement, term (in years) Concept (xbrli:durationItemType) For Period asln:CollaborationAgreementTerm
632 Number of targets to select Concept (Integer) For Period asln:NumberOfTargetsToSelect
633 Number of shares received in exchange for surrender of residual rights Concept (Shares) For Period asln:NumberOfSharesReceivedInExchangeForSurrenderOfResidualRights
634 Value of shares received in exchange for surrender of residual rights Concept (Monetary) For Period Credit asln:ValueOfSharesReceivedInExchangeForSurrenderOfResidualRights
635 Subscription price Concept (Share) For Period asln:SubscriptionPrice
636 Gain from derecognition recorded as other income Concept (Monetary) For Period Credit asln:GainLossArisingFromDerecognitionRecordedAsOtherIncome
637 Upfront payment Concept (Monetary) As Of Credit asln:PaymentForLicenseUpfrontFees
638 Sales and development milestone payments Concept (Monetary) For Period Credit asln:SalesAndDevelopmentMilestonePayments
639 Remaining performance obligation Concept (Monetary) As Of Credit ifrs-full:TransactionPriceAllocatedToRemainingPerformanceObligations
640 100720 - Disclosure - Loss Before Income Tax - Schedule of Other Gains and Losses (Details) Network

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641 Implied Table Table

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643 Net foreign exchange gains (losses) Concept (Monetary) For Period Credit asln:NetForeignExchangeGainLoss
644 Fair value changes of financial assets mandatorily classified as at FVTPL Concept (Monetary) For Period Credit asln:AdjustmentsForIncreaseInFinancialAssetsMandatorilyClassifiedAsAtFairValueThroughProfitOrLoss
645 Loss on disposal of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
646 Others Concept (Monetary) For Period Credit asln:MiscellaneousOtherGainsLosses
647 Other gains and losses Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
648 100730 - Disclosure - Loss Before Income Tax - Summary of Finance costs (Details) Network

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649 Implied Table Table

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652 Preference share dividends Concept (Monetary) For Period Debit ifrs-full:AdjustmentToProfitLossForPreferenceShareDividends
653 Interest on CSL loan Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnBankLoansAndOverdrafts
654 Other interest expenses Concept (Monetary) For Period Debit ifrs-full:OtherFinanceCost
655 Finance costs Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
656 100740 - Disclosure - Loss Before Income Tax - Schedule of Depreciation and Amortization (Details) Network

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657 Disclosure Of Property Plant And Equipment [Table] Table

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661 Computer Software Member ifrs-full:ComputerEquipmentMember
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664 100750 - Disclosure - Loss Before Income Tax - Schedule of Employee Benefits Expense (Details) Network

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665 Implied Table Table

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668 Post-employment benefits Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
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670 Equity-settled Concept (Monetary) For Period Debit ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
671 Cash-settled Concept (Monetary) For Period Debit ifrs-full:ExpenseFromCashsettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
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673 An analysis of employee benefits expense by function Abstract ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract
674 General and administrative expenses Concept (Monetary) For Period Debit asln:EmployeeBenefitsExpenseRelatedToGeneralAndAdministrativeFunction
675 Research and development expenses Concept (Monetary) For Period Debit asln:EmployeeBenefitsExpenseRelatedToResearchAndDevelopment
676 Total employee benefits expense Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
677 100770 - Disclosure - Loss Before Income Tax - Additional Information (Details) Network

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685 Amount of accrued employees’ compensation and remuneration of directors Concept (Monetary) For Period Debit ifrs-full:DirectorsRemunerationExpense
686 100780 - Disclosure - Income Taxes - Summary of Income Tax Recognized in Profit or Loss (Details) Network

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687 Implied Table Table

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690 Adjustments for prior periods Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod
691 100790 - Disclosure - Income Taxes - Summary of Reconciliation of Accounting Profit and Income Tax Expense (Details) Network

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692 Implied Table Table

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694 Loss before income tax Concept (Monetary) For Period Credit ifrs-full:AccountingProfit
695 Income tax benefit calculated at the statutory rate Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
696 Nondeductible expenses in determining taxable income Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
697 Tax credits for research and development expenditures Concept (Monetary) For Period Credit asln:TaxCreditsRelatedToExpenditureOnResearchAndDevelopment
698 Unrecognized loss carryforward Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfTaxLosses
699 Effect of different tax rates of group entities operating in other jurisdictions Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
700 Adjustments for prior periods Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod
701 Income tax expense recognized in profit or loss Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
702 100800 - Disclosure - Income Taxes - Additional Information (Details) Network

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707 Taiwan Member country:TW
708 Australia Member country:AU
709 Hong Kong Member country:HK
710 China Member country:CN
711 United States of America Member country:US
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715 Top of Range Member ifrs-full:TopOfRangeMember
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717 Statutory corporate income tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
718 Unrecognized loss carryforward Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfTaxLosses
719 Deferred tax assets recognized on tax losses Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
720 Decrease in unappropriated earnings due to the effect of corporate surtax rate Concept (Percent) For Period asln:DecreaseInUnappropriatedEarningsDueToEffectOfCorporateSurtaxRate
721 Taxable income Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
722 Provision for income tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
723 Withholding taxes Concept (Monetary) For Period Credit asln:WithholdingTaxes
724 Federal income tax rate Concept (Percent) For Period asln:FederalIncomeTaxRate
725 State income tax rate Concept (Percent) For Period asln:StateIncomeTaxRate
726 100810 - Disclosure - Loss Per Share - Summary of Earnings Per Share (Details) Network

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727 Implied Table Table

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729 Basic and diluted loss per share Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
730 100820 - Disclosure - Loss Per Share - Summary of Loss and Weighted Average Number of Ordinary Shares Outstanding (Details) Network

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731 Implied Table Table

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734 Weighted-average number of ordinary shares in the computation of basic loss per share Concept (Shares) For Period ifrs-full:WeightedAverageShares
735 100830 - Disclosure - Loss Per Share - Additional Information (Details) Network

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736 Implied Table Table

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738 Anti-dilutive outstanding employee share options Concept (Shares) For Period ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
739 Weighted average number of convertible preference shares excluded from the computation of earnings/ loss per share Concept (Shares) For Period asln:WeightedAverageNumberOfConvertiblePreferenceSharesExcludedFromComputationOfEarningsLossPerShare
740 Weighted Average Number of Employee Share Options Excluded from Computation of Earnings/ Loss Per Share Concept (Shares) For Period asln:WeightedAverageNumberOfEmployeeShareOptionsExcludedFromComputationOfEarningsLossPerShare
741 100840 - Disclosure - Share-based Payment Arrangements - Additional Information (Details) Network

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758 Recognized compensation costs Concept (Monetary) For Period Credit asln:ShareOptionsRecognizedCompensationCosts
759 Option granted to qualified employee Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
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761 Description of vesting requirements for stock option Concept (Text/String) For Period ifrs-full:DescriptionOfVestingRequirementsForSharebasedPaymentArrangement
762 Decrease in exercise price for award previously granted Concept (Percent) For Period asln:DecreaseInExercisePriceForAwardPreviouslyGrantedPercentage
763 Anti-dilutive outstanding employee share options Concept (Shares) For Period ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
764 Compensation costs recognized Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
765 Long term incentive plan bonus entitlement units granted Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsGrantedInSharebasedPaymentArrangement
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768 Reporting date fair value of award Concept (Monetary) For Period Debit asln:ReportingDateFairValueOfAward
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770 Recognized compensation liabilities, Current Concept (Monetary) For Period Credit asln:RecognizedCompensationLiabilitiesCurrent
771 Recognized compensation liabilities, Non-current Concept (Monetary) For Period Credit asln:RecognizedCompensationLiabilitiesNonCurrent
772 100850 - Disclosure - Share-based Payment Arrangements - Summary of Fair Value of Share Options Granted to Employees (Details) Network

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776 Exercise price (NT$) Concept (Monetary) For Period ifrs-full:ExercisePriceShareOptionsGranted
777 Expected volatility Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
778 Expected life Concept (Decimal) For Period ifrs-full:DescriptionOfOptionLifeShareOptionsGranted
779 Dividends yield Concept (Percent) For Period ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted
780 Risk-free interest rate Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
781 Weighted-average fair value of options (NT$) Concept (Monetary) As Of Credit ifrs-full:WeightedAverageFairValueAtMeasurementDateShareOptionsGranted
782 100860 - Disclosure - Share-based Payment Arrangements - Summary of Employee Share Options (Details) Network

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783 Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Table] Table

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787 September 2017 Member asln:September2017Member
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789 Number of Options, Beginning of Year Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
790 Number of Options, Granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
791 Number of Options, Forfeited Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement
792 Number of Options, Exercised Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
793 Number of Options, Ending of Year Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
794 Number of Options Exercisable, Ending of Year Concept (Decimal) As Of ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
795 Weighted-average fair value of options granted Concept (Monetary) As Of Credit ifrs-full:WeightedAverageFairValueAtMeasurementDateShareOptionsGranted
796 Weighted- average Exercise Price, Beginning of Year Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
797 Weighted -average Exercise Price, Granted Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement
798 Weighted- average Exercise Price, Forfeited Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement
799 Weighted- average Exercise Price, Exercised Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement
800 Weighted- average Exercise Price, End of Year Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
801 Weighted- average Exercise Price, Exercisable End of Year Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement
802 100870 - Disclosure - Share-based Payment Arrangements - Summary of Outstanding Options (Details) Network

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803 Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Table] Table

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ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
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807 July 2011 Member asln:July2011Member
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813 September 2017 Member asln:September2017Member
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819 Weighted-average Remaining Contractual Life (Years) Concept (Decimal) As Of ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions
820 Exercise price of outstanding share options Concept (Monetary) As Of ifrs-full:ExercisePriceOfOutstandingShareOptions
821 100880 - Disclosure - Share-based Payment Arrangements - Summary of Options Granted Priced Using Binomial Option Pricing Model (Details) Network

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822 Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Table] Table

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828 Grant-date share price (NT$) Concept (Monetary) For Period ifrs-full:WeightedAverageSharePriceShareOptionsGranted
829 Exercise price Concept (Monetary) For Period ifrs-full:ExercisePriceShareOptionsGranted
830 Expected volatility Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
831 Expected life Concept (Decimal) For Period ifrs-full:DescriptionOfOptionLifeShareOptionsGranted
832 Dividends yield Concept (Percent) For Period ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted
833 Risk-free interest rate Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
834 100890 - Disclosure - Share-based Payment Arrangements - Summary of Long Term Incentive Plan (Details) Network

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835 Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Table] Table

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838 Long Term Incentive Plan Granted in 2017 Member asln:LongTermIncentivePlanGrantedInTwoThousandSeventeenMember
839 Long Term Incentive Plan Granted in 2018 Member asln:LongTermIncentivePlanGrantedInTwoThousandEighteenMember
840 Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
841 Beginning balance Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
842 Option granted to qualified employee Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
843 Awards exercised Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
844 Ending balance Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
845 Balance exercisable, end of period Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement
846 100900 - Disclosure - Operating Lease Arrangements - Additional Information (Details) Network

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847 Disclosure Of Finance Lease And Operating Lease By Lessee [Table] Table

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853 Operating leases lease term Concept (xbrli:durationItemType) For Period asln:OperatingLeasesLeaseTerm
854 100910 - Disclosure - Operating Lease Arrangements - Schedule of Future Minimum Lease Payments of Non - Cancellable Operating Lease Commitments (Details) Network

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855 Disclosure Of Finance Lease And Operating Lease By Lessee [Table] Table

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856 Maturity [axis] Axis ifrs-full:MaturityAxis
857 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
858 Not Later than One Year Member ifrs-full:NotLaterThanOneYearMember
859 Later than One Year and not Later than Five Years Member ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember
860 Disclosure Of Finance Lease And Operating Lease By Lessee [Line Items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
861 Minimum lease payments payable under non-cancellable operating lease Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
862 100920 - Disclosure - Financial Instruments - Fair Value of Financial Instruments Measured at Fair Value on Recurring Basis (Details) Network

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863 Disclosure Of Financial Instruments [Table] Table

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866 Fair Value Measured on Recurring Basis Member ifrs-full:RecurringFairValueMeasurementMember
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868 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
869 Level 1 Member ifrs-full:Level1OfFairValueHierarchyMember
870 Level 2 Member ifrs-full:Level2OfFairValueHierarchyMember
871 Level 3 Member ifrs-full:Level3OfFairValueHierarchyMember
872 Disclosure Of Financial Instruments [Line Items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
873 Financial assets at FVTPL Abstract ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossAbstract
874 Financial assets at fair value through profit or loss (Notes 4, 7 and 15) Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLoss
875 Financial assets at FVTOCI Abstract ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeAbstract
876 Investments in equity instruments at FVTOCI of unlisted companies. Concept (Monetary) As Of Debit ifrs-full:FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome
877 100930 - Disclosure - Financial Instruments - Additional Information (Details) Network

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878 Disclosure Of Financial Instruments [Table] Table

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880 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
881 Level 3 Member ifrs-full:Level3OfFairValueHierarchyMember
882 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
883 Risks [member] Member ifrs-full:TypesOfRisksMember
884 Foreign Currency Risk Member ifrs-full:CurrencyRiskMember
885 Interest Rate Risk Member ifrs-full:InterestRateRiskMember
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887 Transfer between Level 1 and 2, assets Concept (Monetary) For Period ifrs-full:TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyAssets
888 Historical volatility Concept (Percent) For Period ifrs-full:HistoricalVolatilityForSharesSignificantUnobservableInputsAssets
889 Percentage of increase or decrease on exchange rate of foreign currency Concept (Percent) For Period asln:PercentageOfIncreaseOrDecreaseOnExchangeRateOfForeignCurrency
890 Sensitivity rate used in reporting foreign currency risk Concept (Percent) For Period asln:SensitivityAnalysisRate
891 Percentage of increase on exchange rate of foreign currency Concept (Percent) For Period asln:PercentageOfIncreaseOnExchangeRateOfForeignCurrency
892 Percentage of decrease on exchange rate of foreign currency Concept (Percent) For Period asln:PercentageOfDecreaseOnExchangeRateOfForeignCurrency
893 Borrowings, interest rate basis Concept (Percent) As Of ifrs-full:BorrowingsAdjustmentToInterestRateBasis
894 Decrease (increase) in pre-tax loss Concept (Monetary) For Period Credit asln:DecreaseIncreaseInPreTaxLossDueToHundredBasisPointIncreaseInInterestRates
895 Concentration of credit risk Concept (Monetary) For Period Credit asln:ConcentrationOfCreditRisk
896 100940 - Disclosure - Financial Instruments - Summary of Categories of Financial Instruments (Details) Network

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897 Implied Table Table

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898 Disclosure Of Financial Instruments [Abstract] Abstract ifrs-full:DisclosureOfFinancialInstrumentsAbstract
899 Financial assets Abstract ifrs-full:CategoriesOfFinancialAssetsAbstract
900 Financial assets at FVTPL Abstract ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossAbstract
901 Mandatorily classified as at FVTPL Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue
902 Loans and receivables Concept (Monetary) As Of Debit ifrs-full:LoansAndReceivables
903 Financial assets at amortized cost Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtAmortisedCost
904 Financial assets at FVTOCI Abstract ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeAbstract
905 Equity instruments Concept (Monetary) As Of Debit ifrs-full:FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome
906 Financial liabilities Abstract ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract
907 Financial liabilities at amortized cost Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtAmortisedCost
908 100950 - Disclosure - Financial Instruments - Summary of Group's Significant Financial Assets and Liabilities Denominated in Foreign Currencies (Details) Network

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909 Implied Table Table

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912 Financial assets, Exchange Rate Concept (Decimal) For Period asln:FinancialAssetsExchangeRate
913 Financial assets, Carrying Amount Concept (Monetary) As Of Debit asln:FinancialAssetsCarryingValue
914 Financial liabilities, Foreign Currencies Concept (Monetary) As Of Credit asln:FinancialLiabilitiesExposedToForeignCurrencyRisk
915 Financial liabilities, Exchange Rate Concept (Decimal) For Period asln:FinancialLiabilitiesExchangeRate
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917 100960 - Disclosure - Financial Instruments - Sensitivity Analysis of Foreign Currency Risk (Details) Network

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923 Impact of a 5% change in foreign exchange rates on profit or loss Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
924 100970 - Disclosure - Transactions with Related Parties - Schedule of Key Management Personnel Compensation (Details) Network

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925 Implied Table Table

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927 Short-term employee benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
928 Post-employment benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits
929 Share-based payments Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
930 Key management personnel compensation Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
931 100980 - Disclosure - Segment Information - Additional Information (Details) Network

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932 Disclosure Of Operating Segments [Table] Table

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943 100990 - Disclosure - Segment Information - Analysis of the Group Revenue from Major Products and Services (Details) Network

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