Subclassifications of assets, liabilities and equities [abstract] Deferred rent Rent deferred income classified as non-current Other non-current liabilities Other Miscellaneous Non-current Liabilities Other Miscellaneous Non-current Liabilities Total other non-current liabilities Other non-current liabilities Profit or loss [abstract] Statement Of Operations [Table] Statement Of Operations [Table] Statement Of Operations [Table] Products and services [axis] Products and services [axis] Products and services [member] Products and services [member] Subscription Subscription [Member] Subscription Maintenance Maintenance [Member] Maintenance Perpetual license Perpetual License [Member] Perpetual License Other Other [Member] Other Income Statement Location [Axis] Income Statement Location1 [Axis] Income Statement Location1 [Axis] Income Statement Location [Domain] Income Statement Location1 [Domain] [Domain] for Income Statement Location1 [Axis] Cost of revenues Cost of Sales1 [Member] Cost of Sales1 [Member] Research and development Research and Development1 [Member] Research and Development1 [Member] Marketing and sales Selling and Marketing Expense1 [Member] Selling and Marketing Expense1 [Member] General and administrative General And Administrative Expense1 [Member] General And Administrative Expense1 [Member] Statement Of Operations [Line Items] Statement Of Operations [Line Items] [Line Items] for Statement Of Operations [Table] Revenues: Revenue [abstract] Total revenues Revenue from contracts with customers Cost of revenues Cost of sales Gross profit Gross profit Research and development Research and development expense Marketing and sales Sales and marketing expense General and administrative General and administrative expense Total operating expenses Operating expense Operating loss Profit (loss) from operating activities Other non-operating expense, net Other Non-Operating Income (Expense), Net Other Non-Operating Income (Expense), Net Finance income Finance income Finance costs Finance costs Loss before income tax (expense) benefit Profit (loss) before tax Income tax (expense) benefit Tax expense (income) Net loss attributable to Owners of Atlassian Corporation Plc Profit (loss), attributable to owners of parent Net loss per share attributable to ordinary shareholders: Earnings per share [abstract] Basic (USD per share) Basic earnings (loss) per share Diluted (USD per share) Diluted earnings (loss) per share Weighted-average shares outstanding used to compute net loss per share attributable to ordinary shareholders: Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract] Basic (shares) Weighted average number of ordinary shares outstanding Diluted (shares) Adjusted weighted average number of ordinary shares outstanding Share-based payment expense Expense from share-based payment transactions with employees Amortization charge Amortisation, intangible assets other than goodwill Trade and other receivables [abstract] Disclosure of detailed information about financial instruments [table] Disclosure of detailed information about financial instruments [table] Concentration Risk Benchmark1 [Axis] Concentration Risk Benchmark1 [Axis] Concentration Risk Benchmark1 Concentration Risk Benchmark1 [Domain] Concentration Risk Benchmark1 [Domain] [Domain] for Concentration Risk Benchmark1 Trade receivables Trade receivables [member] Customer1 [Axis] Customer1 [Axis] Customer1 Customer1 [Domain] Customer1 [Domain] [Domain] for Customer1 Customer One Customer One [Member] Customer One Customer Two Customer Two [Member] Customer Two Types of risks [axis] Types of risks [axis] Risks [member] Risks [member] Customer Concentration Risk Customer Concentration Risk1 [Member] Customer Concentration Risk1 Major customers [axis] Major customers [axis] Customers [member] Customers [member] Solution partners Solution partners [Member] Solution partners [Member] Classes of financial instruments [axis] Classes of financial instruments [axis] Financial instruments, class [member] Financial instruments, class [member] Disclosure of detailed information about financial instruments [line items] Disclosure of detailed information about financial instruments [line items] Concentration risk, percentage Concentration Risk, Percentage Concentration Risk, Percentage ECL allowance Allowance account for credit losses of financial assets Related party transactions [abstract] Disclosure of transactions between related parties [table] Disclosure of transactions between related parties [table] Categories of related parties [axis] Categories of related parties [axis] Entity's total for related parties [Domain] Entity's total for related parties [member] Executive management Executive management [Member] Executive management [Member] Board of directors Board of directors [Member] Board of directors [Member] Disclosure of transactions between related parties [line items] Disclosure of transactions between related parties [line items] Short-term compensation and benefits Key management personnel compensation, short-term employee benefits Post-employment benefits Key management personnel compensation, post-employment benefits Share-based payments Key management personnel compensation, share-based payment Cash remuneration Key Management Personnel Compensation, Cash Remuneration Key Management Personnel Compensation, Cash Remuneration Key management personnel compensation Key management personnel compensation Disclosure of additional information [Abstract] Disclosure of additional information [Abstract] Other Non-operating Expense, Net Disclosure of additional information [text block] Prepaid expenses Current prepaid expenses Accrued interest income on short-term investments Current interest receivable Other receivables Other current receivables Other current assets Other current assets Total prepaid expenses and other current assets Current prepayments and current accrued income Disclosure of interests in other entities [Abstract] Disclosure of interests in other entities [Abstract] Group Information Disclosure of interests in other entities [text block] Borrowings [abstract] Disclosure of detailed information about borrowings [table] Disclosure of detailed information about borrowings [table] Borrowings by name [axis] Borrowings by name [axis] Borrowings by name [member] Borrowings by name [member] Initial Notes Initial Cash Exchangeable Senior Notes Due 2023 [Member] Initial Cash Exchangeable Senior Notes Due 2023 Additional Notes Additional Cash Exchangeable Senior Notes Due 2023 [Member] Additional Cash Exchangeable Senior Notes Due 2023 Exchangeable Notes, net Cash Exchangeable Senior Notes Due 2023 [Member] Cash Exchangeable Senior Notes Due 2023 Classes of share capital [axis] Classes of share capital [axis] Share capital [member] Share capital [member] Class A Ordinary Shares Class A Ordinary Shares [Member] Class A Ordinary Shares [Member] Range [axis] Range [axis] Ranges [member] Ranges [member] Top of range Top of range [member] Capped Call Transactions Purchased call options [member] Disclosure of detailed information about borrowings [line items] Disclosure of detailed information about borrowings [line items] Debt instruments issued Debt instruments issued Debt interest rate Borrowings, interest rate (Payment of issuance cost) proceeds from issuance of exchangeable senior notes, net of discount and issuance costs Proceeds from non-current borrowings Debt conversion, number of shares issued in initial exchange (shares) Debt Instrument, Convertible, Number Of Equity Instruments1 Debt Instrument, Convertible, Number Of Equity Instruments1 Debt conversion, initial exchange rate per share (USD per share) Debt Instrument, Convertible, Conversion Price Debt Instrument, Convertible, Conversion Price Debt conversion ratio Debt Instrument, Convertible, Conversion Ratio Debt Instrument, Convertible, Conversion Ratio Debt conversion, threshold trading days Debt Instrument, Convertible, Threshold Trading Days1 Debt Instrument, Convertible, Threshold Trading Days1 Debt convertible, threshold consecutive trading days Debt Instrument, Convertible, Threshold Consecutive Trading Days11 Debt Instrument, Convertible, Threshold Consecutive Trading Days11 Debt convertible, exchange price percentage Debt Instrument, Convertible, Exchange Price Percentage Debt Instrument, Convertible, Exchange Price Percentage Debt conversion, threshold business trading days Debt Instrument, Convertible, Threshold Business Trading Days Debt Instrument, Convertible, Threshold Business Trading Days Debt conversion, threshold consecutive business trading days Debt Instrument, Convertible, Threshold Consecutive Business Trading Days Debt Instrument, Convertible, Threshold Consecutive Business Trading Days Debt conversion, percentage of share sale price of exchange rate of notes Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed1 Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed1 Debt convertible, redemption of principal amount percentage Debt Instrument, Redemption Price, Percentage11 Debt Instrument, Redemption Price, Percentage11 Debt instrument, fair value of embedded derivative Debt Instrument, Convertible, Fair Value of Embedded Derivative Debt Instrument, Convertible, Fair Value of Embedded Derivative Fair value of capped calls derivatives Derivative financial assets Payment for cost of capped calls Payments For Derivative Instrument, Financing Activities1 Payments for Derivative Instrument, Financing Activities1 Schedule of trade receivables Disclosure Of Trade Receivables Explanatory [Table Text Block] Disclosure Of Trade Receivables Explanatory [Table Text Block] Schedule of movements in ECL allowance Disclosure of financial assets that are either past due or impaired [text block] Schedule of aging analysis of trade receivables Analysis of age of financial assets that are past due but not impaired [text block] Disclosure of detailed information about intangible assets [abstract] Disclosure of reconciliation of changes in goodwill [table] Disclosure of reconciliation of changes in goodwill [table] Classes of intangible assets and goodwill [axis] Classes of intangible assets and goodwill [axis] Intangible assets and goodwill [member] Intangible assets and goodwill [member] Goodwill Goodwill [member] Disclosure of reconciliation of changes in goodwill [line items] Disclosure of reconciliation of changes in goodwill [line items] Reconciliation of changes in intangible assets and goodwill [abstract] Reconciliation of changes in intangible assets and goodwill [abstract] Beginning balance Goodwill Additions Additional recognition, goodwill Effect of change in exchange rates Increase (decrease) through net exchange differences, goodwill Ending balance Significant Accounting Policies [Abstract] Significant Accounting Policies [Abstract] Disclosure of expected impact of initial application of new standards or interpretations [table] Disclosure of expected impact of initial application of new standards or interpretations [table] Retrospective application and retrospective restatement [axis] Retrospective application and retrospective restatement [axis] Currently stated [member] Currently stated [member] As Reported Previously stated [member] IFRS 15 Adjustment Increase (decrease) due to application of IFRS 15 [member] Disclosure of expected impact of initial application of new standards or interpretations [line items] Disclosure of expected impact of initial application of new standards or interpretations [line items] Consolidated Statements of Operations Statement of profit or loss and other comprehensive income [abstract] Total operating expenses Net loss Basic net loss per share (USD per share) Diluted net loss per share (USD per share) Current assets: Current assets [abstract] Prepaid expenses and other current assets Non-current assets: Non-current assets [abstract] Deferred tax assets Deferred tax assets Other non-current assets Other non-current assets Current liabilities: Current liabilities [abstract] Deferred revenue Current contract liabilities Non-current liabilities: Non-current liabilities [abstract] Deferred tax liabilities Deferred tax liabilities Deferred revenue Non-current contract liabilities Accumulated deficit Retained earnings Disclosure of financial assets [table] Disclosure of financial assets [table] Classes of assets [axis] Classes of assets [axis] Assets [member] Assets [member] Certificates of deposit and time deposits Certificates of Deposit and Time Deposits [Member] Certificates of Deposit and Time Deposits [Member] Balance Sheet Location [Axis] Balance Sheet Location1 [Axis] Balance Sheet Location1 [Axis] Balance Sheet Location [Domain] Balance Sheet Location1 [Domain] [Domain] for Balance Sheet Location1 [Axis] Long-term security deposits Security Deposits, Noncurrent [Member] Security Deposits, Noncurrent Disclosure of financial assets [line items] Disclosure of financial assets [line items] Equity securities Financial assets Non-current restricted cash Non-current restricted cash and cash equivalents Borrowings by name [member] Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Carrying amount [member] Carrying amount [member] Principal amount Gross carrying amount [member] Unamortized debt discount Unamortized Debt Discount [Member] Unamortized Debt Discount Unamortized issuance costs Unamortized Issuance Costs [Member] Unamortized Issuance Costs Effective interest rate Borrowings, Effective Interest Rate Borrowings, Effective Interest Rate Contractual interest expense Interest expense on borrowings Amortization of debt discount Amortization Of Borrowing Costs Amortization Of Borrowing Costs Disclosure of detailed information about financial instruments [abstract] Classes of financial assets [axis] Classes of financial assets [axis] Financial assets, class [member] Financial assets, class [member] Debt Investments Debt securities [member] Unrealized gain (loss) recognized in other comprehensive income Gains (losses) on financial assets measured at fair value through other comprehensive income, before tax Gain (loss) recognized into profit or loss Reclassification adjustments on financial assets measured at fair value through other comprehensive income, before tax Statement of changes in equity [abstract] Statement of changes in equity [table] Statement of changes in equity [table] Components of equity [axis] Components of equity [axis] Equity [member] Equity [member] Share capital Issued capital [member] Share premium Share premium [member] Other capital reserves Other reserves [member] Cash flow hedge reserve Reserve of cash flow hedges [member] Foreign currency translation reserve Reserve of exchange differences on translation [member] Investments at fair value through other comprehensive income reserve Reserve of gains and losses on financial assets measured at fair value through other comprehensive income [member] Retained earnings (accumulated deficit) Retained earnings [member] Statement of changes in equity [line items] Statement of changes in equity [line items] Beginning Balance Equity attributable to owners of parent Other comprehensive income (loss), net of tax Other comprehensive income, attributable to owners of parent Total comprehensive loss attributable to owners of Atlassian Corporation Plc Comprehensive income, attributable to owners of parent Changes in equity [abstract] Changes in equity [abstract] Issuance of ordinary shares upon exercise of share options Issue Of Equity, Exercise Of Share Options, Net Of Early Exercise, Equity Issue Of Equity, Exercise Of Share Options, Net Of Early Exercise, Equity Vesting of early exercised shares Issue Of Equity, Vesting Of Early Exercise, Equity Issue of Equity, Vesting Of Early Exercise, Equity Issuance of ordinary shares for settlement of restricted share units (RSUs) Issue Of Equity, Settlement Of Restricted Share Units, Net Of Share Withheld, Equity Issue of Equity, Settlement of Restricted Share Units, Net Of Share Withheld, Equity Share-based payment Increase (decrease) through share-based payment transactions, equity Replacement equity awards related to business combination Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity Tax benefit from share plans Decrease (increase) through tax on share-based payment transactions, equity Reduction in deferred tax assets Decrease (Increase) Through Deferred Tax Asset Transactions, Equity Decrease (increase) through deferred tax asset transactions, equity Increase (decrease) in equity Increase (decrease) in equity Ending Balance Maturity [axis] Maturity [axis] Aggregated time bands [member] Aggregated time bands [member] Due in one year or less Not later than one year [member] Due after one year Later than one year [member] Total investments Financial assets, at fair value Disclosure of detailed information about business combination [abstract] Disclosure of detailed information about business combination [table] Disclosure of detailed information about business combination [table] Business combinations [axis] Business combinations [axis] Entity's total for business combinations [member] Entity's total for business combinations [member] AgileCraft AgileCraft, LCC [Member] AgileCraft, LCC OpsGenie Opsgenie, Inc. [Member] Opsgenie, Inc. Good Software Good Software [Member] Good Software [Member] Butler Butler [Member] Butler [Member] Trello Trello [Member] Trello [Member] StatusPage StatusPage [Member] StatusPage [Member] Bottom of range Bottom of range [member] Intangible assets material to entity Intangible assets material to entity [member] Disclosure of detailed information about business combination [line items] Disclosure of detailed information about business combination [line items] Percentage of voting equity interests acquired Percentage of voting equity interests acquired Total purchase price consideration Consideration transferred, acquisition-date fair value Cash transferred Cash transferred Equity interests of acquirer Equity interests of acquirer Number of replacement shares issued (shares) Number of shares issued Value of restricted shares granted Issue Of Restricted Share Units, Net Of Share Withheld, In Business Combination Issue Of Restricted Share Units, Net Of Share Withheld, In Business Combination Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination Net tangible assets Net Identifiable Tangible Assets Recognised As Of Acquisition Date Net Identifiable Tangible Assets Recognised As Of Acquisition Date Developed-technology intangible assets Technology-based intangible assets recognised as of acquisition date Customer-related intangible assets Customer-related intangible assets recognised as of acquisition date Goodwill Payment of deferred consideration Liabilities incurred Intangible assets Identifiable intangible assets recognised as of acquisition date Useful lives of intangible assets (in years) Useful Lives Or Amortization Rates, Intangible Assets Other Than Goodwill, Period Useful Lives Or Amortization Rates, Intangible Assets Other Than Goodwill, Period Number of cash-generating units Number Of Cash Generating Units Number Of Cash-Generating Units Number of reporting segments Number Of Reporting Segments1 Number Of Reporting Segments1 Number of operating segments Number Of Operating Segments1 Number Of Operating Segments1 Number of categories of revenue Number of Revenue Categories Number of Revenue Categories Disclosure of classes of share capital [table] Disclosure of classes of share capital [table] New IFRSs [axis] New IFRSs [axis] New IFRSs [member] New IFRSs [member] IFRS 16, Leases IFRS 16, Leases [Member] IFRS 16, Leases Non-adjusting events after reporting period [axis] Non-adjusting events after reporting period [axis] Non-adjusting events after reporting period [member] Non-adjusting events after reporting period [member] Impact of Adoption of New Accounting Pronouncement [Member] Impact of Adoption of New Accounting Pronouncement [Member] Impact of Adoption of New Accounting Pronouncement Disclosure of classes of share capital [line items] Disclosure of classes of share capital [line items] Contractual term of subscription revenues Revenue, Subscription-based Arrangements, Contractual Term Revenue, Subscription-based Arrangements, Contractual Term Right-of-use assets Right-of-use assets Lease liabilities Lease liabilities Income Taxes [Abstract] Income Taxes [Abstract] Disclosure of temporary difference, unused tax losses and unused tax credits [table] Disclosure of temporary difference, unused tax losses and unused tax credits [table] Income Tax Authority1 [Axis] Income Tax Authority1 [Axis] Income Tax Authority1 [Axis] Income Tax Authority1 [Domain] Income Tax Authority1 [Domain] [Domain] for Income Tax Authority1 [Axis] United States Internal Revenue Service (IRS)1 [Member] Internal Revenue Service (IRS)1 Other jurisdictions Other Jurisdictions [Member] Other Jurisdictions [Member] Geographical areas [axis] Geographical areas [axis] Geographical areas [member] Geographical areas [member] U.S. UNITED STATES Temporary difference, unused tax losses and unused tax credits [axis] Temporary difference, unused tax losses and unused tax credits [axis] Temporary difference, unused tax losses and unused tax credits [member] Temporary difference, unused tax losses and unused tax credits [member] Intellectual property rights Copyrights, patents and other industrial property rights, service and operating rights [member] Disclosure of temporary difference, unused tax losses and unused tax credits [line items] Disclosure of temporary difference, unused tax losses and unused tax credits [line items] Non-cash charges related to tax expense as result of new U.S. federal statutory rate Tax Cuts And Jobs Act, Incomplete Accounting, Change In Tax Rate, Provisional Income Tax Expense (Benefit) Tax Cuts and Jobs Act, Incomplete Accounting, Change in Tax Rate, Provisional Income Tax Expense (Benefit) Non-cash charges to equity to revalue net deferred tax assets and liabilities as result of new U.S. federal statutory rate Tax Cuts And Jobs Act, Change In Tax Rate, Incomplete Accounting, Deferred Tax Relating To Items Credited (Charged) Directly To Equity Tax Cuts and Jobs Act, Change in Tax Rate, Incomplete Accounting, Deferred Tax Relating to Items Credited (Charged) Directly to Equity Non-cash charges to tax expense for realizability of deferred tax assets as result of new U.S. federal statutory rate Tax Cuts And Jobs Act, Change In Tax Rate, Deferred Tax Asset, Income Tax Expense Tax Cuts And Jobs Act, Change In Tax Rate, Deferred Tax Asset, Income Tax Expense Non-cash charge to equity to reduce carrying value of deferred tax assets Deferred tax relating to items credited (charged) directly to equity Unused tax losses Unused tax losses for which no deferred tax asset recognised Deferred tax liabilities recognized from business combination Increase (decrease) through business combinations, deferred tax liability (asset) Net operating loss carryforward recognized from business combinations Operating Loss Carryforwards1 Operating Loss Carryforwards1 Deferred tax liability recognized from business combination Deferred tax liability (asset) Disclosure of fair value measurement of equity [table] Disclosure of fair value measurement of equity [table] Levels of fair value hierarchy [axis] Levels of fair value hierarchy [axis] All levels of fair value hierarchy [member] All levels of fair value hierarchy [member] Level 3 Level 3 of fair value hierarchy [member] Embedded exchange feature of Notes Embedded Exchange Feature of Notes [Member] Embedded Exchange Feature of Notes [Member] Non-marketable equity securities Non-Marketable Securities, Fair Value [Member] Non-Marketable Securities, Fair Value [Member] Non-operating (expense) income Non-operating Income (Expense) [Member] Non-operating Income (Expense) Finance income Finance Income [Member] Finance Income Disclosure of fair value measurement of equity [line items] Disclosure of fair value measurement of equity [line items] Changes in fair value measurement, assets [abstract] Changes in fair value measurement, assets [abstract] Beginning balance Purchases Purchases, fair value measurement, assets Transfer out Transfers out of Level 3 of fair value hierarchy, assets Gains (losses) recognized in profit or loss Gains (losses) recognised in profit or loss including exchange differences, fair value measurement, assets Gains (losses) recognized in other comprehensive income Gains (losses) recognised in other comprehensive income including exchange differences, fair value measurement, assets Ending balance Change in unrealized gains (losses) relating to assets held at end of period Gains (losses) recognised in profit or loss attributable to change in unrealised gains or losses for assets held at end of period, fair value measurement Changes in fair value measurement, liabilities [abstract] Changes in fair value measurement, liabilities [abstract] Beginning balance Financial liabilities, at fair value Purchases Purchases, fair value measurement, liabilities Transfer out Transfers out of Level 3 of fair value hierarchy, liabilities Gains (losses) recognized in profit or loss Gains (losses) on financial liabilities at fair value through profit or loss Gains (losses) recognised in other comprehensive income Gains (losses) recognised in other comprehensive income including exchange differences, fair value measurement, liabilities Ending balance Change in unrealized gains (losses) relating to liabilities held at end of period Gains (losses) recognised in profit or loss attributable to change in unrealised gains or losses for liabilities held at end of period, fair value measurement Equity Investments Equity investments [member] Types of financial assets [axis] Types of financial assets [axis] Financial assets, type [member] Financial assets, type [member] U.S. treasury securities US Treasury Securities1 [Member] US Treasury Securities1 [Member] Agency securities Agency Securities1 [Member] Agency Securities1 [Member] Commercial paper Commercial Paper, Classified As Investments [Member] Commercial Paper, Classified As Investments [Member] Corporate debt securities Corporate Debt Securities1 [Member] Corporate Debt Securities1 [Member] Marketable equity securities Marketable Equity Securities [Member] Marketable Equity Securities [Member] Non-marketable equity securities Non-Marketable Equity Securities [Member] Non-Marketable Equity Securities [Member] Amortized Cost Unrealized Gains Financial Assets, Accumulated Gross Unrealized Gain, Before Tax Financial Assets, Accumulated Gross Unrealized Gain, Before Tax Unrealized Losses Financial Assets, Accumulated Gross Unrealized Loss, Before Tax Financial Assets, Accumulated Gross Unrealized Loss, Before Tax Fair Value Disclosure of financial assets that are either past due or impaired [table] Disclosure of financial assets that are either past due or impaired [table] Past due status [axis] Past due status [axis] Past due status [member] Past due status [member] Current Current [member] Less than 90 days Later than one month and not later than three months [member] More than 90 days Later than three months [member] Gross carrying amount Impairment of financial assets [axis] Impairment of financial assets [axis] Entity's total for impairment of financial assets [member] Entity's total for impairment of financial assets [member] Financial assets past due but not impaired Financial assets past due but not impaired [member] Disclosure of financial assets that are either past due or impaired [line items] Disclosure of financial assets that are either past due or impaired [line items] ECL rate Expected credit loss rate Trade receivables Trade receivables ECL Statement of cash flows [abstract] Operating activities Cash flows from (used in) operating activities [abstract] Loss before income tax (expense) benefit Adjustments to reconcile loss before income tax expense to net cash provided by operating activities: Adjustments to reconcile profit (loss) [abstract] Depreciation and amortization Adjustments for depreciation and amortisation expense Gain on sale of investments and other assets Adjustments For Losses (Gains) On Sale Of Investments And Other Assets Adjustments For Losses (Gains) On Sale Of Investments And Other Assets Net unrealized foreign currency (gain) loss Adjustments for unrealised foreign exchange losses (gains) Share-based payment expense Adjustments for share-based payments Net unrealized loss on exchange derivative and capped call transactions Adjustments for gains (losses) on change in fair value of derivatives Amortization of debt discount and issuance cost Adjustments For Amortization Of Debt Issuance Costs And Discounts Adjustments For Amortization Of Debt Issuance Costs And Discounts Interest income Adjustments for interest income Interest expense Adjustments for interest expense Changes in assets and liabilities: Changes In Assets And Liabilities [Abstract] Changes In Assets And Liabilities [Abstract] Trade receivables Adjustments for decrease (increase) in trade accounts receivable Prepaid expenses and other assets Adjustments for decrease (increase) in other current assets Trade and other payables, provisions and other non-current liabilities Adjustments for increase (decrease) in trade accounts payable Deferred revenue Adjustments For Increase (Decrease) in Contract Liabilities Adjustments For Increase (Decrease) in Contract Liabilities Interest received Interest received, classified as operating activities Income tax refunds received (income tax paid), net Income taxes paid (refund), classified as operating activities Net cash provided by operating activities Cash flows from (used in) operating activities Investing activities Cash flows from (used in) investing activities [abstract] Business combinations, net of cash acquired Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities Purchases of intangible assets Purchase of property, plant and equipment, classified as investing activities Purchases of property and equipment Purchase of intangible assets, classified as investing activities Proceeds from sales of property, equipment and intangible assets Proceeds from sales of other long-term assets, classified as investing activities Purchases of investments Purchase of investments other than investments accounted for using equity method Proceeds from maturities of investments Proceeds From Maturities Of Investments Other Than Investments Accounted For Using Equity Method Proceeds From Maturities Of Investments Other Than Investments Accounted For Using Equity Method Proceeds from sales of investments Proceeds from sales of investments other than investments accounted for using equity method Increase in restricted cash Cash flows from (used in) decrease (increase) in restricted cash and cash equivalents Payment of deferred consideration Payment Of Deferred Consideration Payment Of Deferred Consideration Net cash used in investing activities Cash flows from (used in) investing activities Financing activities Cash flows from (used in) financing activities [abstract] Proceeds from exercise of share options Proceeds from exercise of options Payments of issuance cost of exchangeable senior notes Payments for debt issue costs Proceeds from issuance of exchangeable senior notes, net of discount and issuance cost Purchase of capped calls Interest paid Interest paid, classified as financing activities Net cash (used in) provided by financing activities Cash flows from (used in) financing activities Effect of exchange rate changes on cash and cash equivalents Effect of exchange rate changes on cash and cash equivalents Net (decrease) increase in cash and cash equivalents Increase (decrease) in cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents Cash and cash equivalents at end of period Disclosure of classes of share capital [abstract] Shareholders' Equity Disclosure of share capital, reserves and other equity interest [text block] Schedule of other non-operating expense, net Disclosure Of Other Non-Operating Income (Expense), By Component [Table Text Block] Disclosure Of Other Non-Operating Income (Expense), By Component [Table Text Block] Loss before income tax (expense) benefit Accounting profit Statutory income tax rate Applicable tax rate At the U.K.’s statutory income tax rate of 19% in fiscal 2019 and 2018, and 19.75% in fiscal 2017 Tax expense (income) at applicable tax rate Tax effect of amounts that are not taxable (deductible) in calculating taxable income: Reconciliation of accounting profit multiplied by applicable tax rates [abstract] Research and development incentive Tax Effect Of Tax Credit, Research Tax Effect Of Tax Credit, Research Non-deductible charges relating to exchangeable senior notes Tax Effect Of Expense Not Deductible In Determining Taxable Profit (Tax Loss), Finance Costs Tax Effect Of Expense Not Deductible In Determining Taxable Profit (Tax Loss), Finance Costs Share-based payment Tax Effect Of Share-Based Payment Tax Effect Of Share-Based Payment Amortization of intangible assets that do not give rise to deferred taxes Tax Effect Of Amortization Of Intangible Assets Tax Effect Of Amortization Of Intangible Assets Foreign tax rate adjustment Tax Effect From Foreign Tax Reform Tax Effect From Foreign Tax Reform Adjustment to deferred tax balance Tax Effect Of Deferred Tax Balance Adjustment Tax Effect Of Deferred Tax Balance Adjustment Other items, net Other tax effects for reconciliation between accounting profit and tax expense (income) Income tax benefit (expense) before adjustments in respect to current and deferred tax of previous years Tax Expense (Income), Continuing Operations, Before Adjustments For Current And Deferred Tax Of Prior Periods Tax Expense (Income), Continuing Operations, Before Adjustments For Current And Deferred Tax Of Prior Periods Adjustments in respect to current income tax of previous years Adjustments for current tax of prior periods Adjustments in respect to deferred income tax of previous years Adjustments for deferred tax of prior periods Income tax (expense) benefit Amounts recognised as of acquisition date for each major class of assets acquired and liabilities assumed [abstract] Amounts recognised as of acquisition date for each major class of assets acquired and liabilities assumed [abstract] Cash and cash equivalents Cash and cash equivalents recognised as of acquisition date Trade receivables Trade And Other Receivables Recognized As Of Acquisition Trade And Other Receivables Recognized As Of Acquisition Prepaid expenses and other current assets Prepaid Expenses And Other Current Assets As Of Acquisition Date Prepaid Expenses And Other Current Assets As Of Acquisition Date Deferred tax assets Deferred tax assets recognised as of acquisition date Trade and other payables Trade and other payables recognised as of acquisition date Deferred revenue Deferred income recognised as of acquisition date Deferred tax liabilities Deferred tax liabilities recognised as of acquisition date Net assets acquired Identifiable assets acquired (liabilities assumed) Disclosure of revenue from contracts with customers [Abstract] Disclosure of revenue from contracts with customers [Abstract] Revenue Disclosure of revenue from contracts with customers [text block] Statement of financial position [abstract] Assets Assets [abstract] Current assets: Cash and cash equivalents Short-term investments Current investments Tax receivables Current tax assets, current Derivative assets Current derivative financial assets Total current assets Current assets Non-current assets: Property and equipment, net Property, plant and equipment Intangible assets, net Intangible assets other than goodwill Derivative assets Non-current derivative financial assets Total non-current assets Non-current assets Total assets Assets Liabilities Liabilities [abstract] Current liabilities: Trade and other payables Trade and other current payables Current tax liabilities Current tax liabilities, current Provisions Current provisions Deferred revenue Derivative liabilities Current derivative financial liabilities Current portion of exchangeable senior notes, net Current portion of non-current borrowings Total current liabilities Current liabilities Non-current liabilities: Provisions Non-current provisions Exchangeable senior notes, net Non-current portion of non-current borrowings Derivative liabilities Non-current derivative financial liabilities Other non-current liabilities Total non-current liabilities Non-current liabilities Total liabilities Liabilities Equity Equity [abstract] Share capital Issued capital Share premium Share premium Other capital reserves Other reserves Other components of equity Other equity interest Total equity Equity Total liabilities and equity Equity and liabilities Currency risk Currency risk [member] Equity price risk Equity price risk [member] Interest rate risk Interest rate risk [member] Currency [Axis] Currency [Axis] All Currencies [Domain] All Currencies [Domain] U.S. dollar United States of America, Dollars Short-term investments Short-Term Investments1 [Member] Short-Term Investments1 Hedging instruments [axis] Hedging instruments [axis] Hedging instruments Hedging instruments [member] Foreign exchange forward contracts Foreign Exchange Forward Contracts [Member] Foreign Exchange Forward Contracts [Member] Classes of financial liabilities [axis] Classes of financial liabilities [axis] Financial liabilities, class [member] Financial liabilities, class [member] Derivatives Derivatives [member] Unobservable inputs [axis] Unobservable inputs [axis] Unobservable inputs [member] Unobservable inputs [member] Historical volatility for shares, measurement input Historical volatility for shares, measurement input [member] Non-current derivative assets Other Non-Current Assets [Member] Other Non-Current Assets [Member] Period during which cash flow hedges hedge cost of revenues and operating expenses (up to) Term Of Cash Flow Hedges Term Of Cash Flow Hedges Hypothetical increase in risk variable (as a percent) Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Increase In Risk Variable, Percent Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Increase In Risk Variable, Percent Hypothetical decrease in fair value Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Decrease In Risk Variable, Impact On Fair Value Of Hedging Instrument Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Decrease In Risk Variable, Impact On Fair Value Of Hedging Instrument Hypothetical decrease in risk variable (as a percent) Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Decrease In Risk Variable, Percent Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Decrease In Risk Variable, Percent Hypothetical increase in fair value Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Increase In Risk Variable, Impact On Fair Value Of Hedging Instrument Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Increase In Risk Variable, Impact On Fair Value Of Hedging Instrument Period to remit payment according to credit policy Credit Policy, Period To Remit Payment Credit Policy, Period To Remit Payment Significant unobservable input, liabilities Significant unobservable input, liabilities Hypothetical increase in risk variable, additional loss Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Change In Risk Variable, Impact On Earnings Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Change In Risk Variable, Impact On Earnings Certificates of deposit and time deposits Long-term deposits Financial Assets and Liabilities Disclosure of financial instruments [text block] Disclosure of detailed information about hedging instruments [table] Disclosure of detailed information about hedging instruments [table] Current derivative Derivatives Current [Member] Derivatives Current Non-current derivative Derivatives Noncurrent [Member] Derivatives Noncurrent Disclosure of detailed information about hedging instruments [line items] Disclosure of detailed information about hedging instruments [line items] Derivative assets - hedging Disclosure of financial assets [abstract] Derivatives designated as hedging instruments Derivative financial assets held for hedging Derivatives not designated as hedging instruments Derivative financial assets held for trading Total derivative assets Derivative liabilities - hedging Disclosure of financial liabilities [abstract] Derivatives designated as hedging instruments Derivative financial liabilities held for hedging Derivatives not designated as hedging instruments Derivative financial liabilities held for trading Total derivative liabilities Derivative financial liabilities Schedule of group information Disclosure of composition of group [text block] Disclosure of share-based payment arrangements [Abstract] Disclosure of share-based payment arrangements [Abstract] Schedule of number and weighted average exercise prices of share options outstanding Disclosure of number and weighted average exercise prices of share options [text block] Schedule of number and weighted average exercise prices of RSUs outstanding Disclosure of range of exercise prices of outstanding share options [text block] Schedule of number and weighted average remaining contractual life of outstanding share options Disclosure of number and weighted average remaining contractual life of outstanding share options [text block] Disclosure of number and weighted average exercise prices of other equity instruments [text block] Disclosure of number and weighted average exercise prices of other equity instruments [text block] Exchangeable Senior Notes Disclosure of borrowings [text block] Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [table] Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [table] Foreign Exchange Forward Contracts Types of hedges [axis] Types of hedges [axis] Hedges [member] Hedges [member] Cash Flow Hedge Cash flow hedges [member] Hedging Designation1 [Axis] Hedging Designation1 [Axis] Hedging Designation1 [Axis] Hedging Designation1 [Domain] Hedging Designation1 [Domain] [Domain] for Hedging Designation1 [Axis] Designated as Hedging Instrument Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Research and development In Process Research and Development [Member] In Process Research and Development [Member] Marketing and sales Marketing and Sales [Member] Marketing and Sales Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items] Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items] Gain recognized into general and administrative expense - ineffective portion Gain (loss) on hedge ineffectiveness recognised in profit or loss Gross unrealized loss recognized in other comprehensive income Gains (losses) on cash flow hedges, before tax Net (loss) gain reclassified from cash flow hedge reserve into profit or loss - effective portion Reclassification adjustments on cash flow hedges, before tax Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Entity Filer Category Entity Filer Category Current Fiscal Year End Date Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Type Document Type Document Fiscal Period Document Fiscal Period Focus Document Period End Date Document Period End Date Document Annual Report Document Annual Report Document Transition Report Document Transition Report Document Shell Company Report Document Shell Company Report Document Registration Statement Document Registration Statement Amendment Flag Amendment Flag Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Shell Company Entity Shell Company Entity Emerging Growth Company Entity Emerging Growth Company Document Information [Table] Document Information [Table] Classes of ordinary shares [axis] Classes of ordinary shares [axis] Ordinary shares Ordinary shares [member] Class B Ordinary Shares Class B Ordinary Shares [Member] Class B Ordinary Shares [Member] Document Information [Line Items] Document Information [Line Items] Entity Common Stock, Shares Outstanding (shares) Entity Common Stock, Shares Outstanding Disclosure of terms and conditions of share-based payment arrangement [table] Disclosure of terms and conditions of share-based payment arrangement [table] Types of share-based payment arrangements [axis] Types of share-based payment arrangements [axis] Share-based payment arrangements [member] Share-based payment arrangements [member] RSUs Restricted Stock Units (RSUs) [Member] Restricted Stock Units [Member] Plan Name [Axis] Plan Name1 [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name1 [Domain] [Domain] for Plan Name [Axis] 2015 Plan Plan 2015 [Member] Plan 2015 [Member] Disclosure of terms and conditions of share-based payment arrangement [line items] Disclosure of terms and conditions of share-based payment arrangement [line items] Shares Available for Grant, beginning balance (shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Number Of Shares Available For Grant1 Share-Based Compensation Arrangement By Share-Based Payment Award, Number Of Shares Available For Grant Share Options Outstanding, beginning balance (shares) Number of share options outstanding in share-based payment arrangement RSUs Outstanding, beginning balance (shares) Number of other equity instruments outstanding in share-based payment arrangement 2015 Plan (shares) Increase (Decrease) In Number Of Shares Authorized Increase (Decrease) In Number Of Shares Authorized RSUs granted (shares) Number of other equity instruments granted in share-based payment arrangement RSUs canceled (shares) Number of other equity instruments forfeited in share-based payment arrangement RSUs settled (shares) Number Of Other Equity Instruments Settled In Share-Based Payment Arrangement Number Of Other Equity Instruments Settled In Share-Based Payment Arrangement Share options exercised (shares) Number of share options exercised in share-based payment arrangement Share options canceled (shares) Number of share options forfeited in share-based payment arrangement Shares Available for Grant, ending balance (shares) Share Options Outstanding, ending balance (shares) RSUs Outstanding, ending balance (shares) Share options vested and exercisable (shares) Number of share options exercisable in share-based payment arrangement Weighted Average Exercise Price, Share Options Outstanding, beginning balance (USD per share) Weighted average exercise price of share options outstanding in share-based payment arrangement Share options exercised (USD per share) Weighted average share price for share options in share-based payment arrangement exercised during period at date of exercise Share options canceled (USD per share) Weighted average exercise price of share options forfeited in share-based payment arrangement Weighted Average Exercise Price, Share Options Outstanding, ending balance (USD per share) Weighted Average Exercise Price, share options vested and exercisable (USD per share) Weighted average exercise price of share options exercisable in share-based payment arrangement Earnings Per Share Disclosure of earnings per share [text block] Disclosure of detailed information about property, plant and equipment [table] Disclosure of detailed information about property, plant and equipment [table] Classes of property, plant and equipment [axis] Classes of property, plant and equipment [axis] Property, plant and equipment [member] Property, plant and equipment [member] Equipment Equipment1 [Member] Equipment1 Computer hardware and computer-related software Computer equipment [member] Furniture and fittings Fixtures and fittings [member] Leasehold improvements Leasehold improvements [member] Disclosure of detailed information about property, plant and equipment [line items] Disclosure of detailed information about property, plant and equipment [line items] Estimated useful lives of property and equipment Useful Lives Or Depreciation Rates, Property, Plant And Equipment, Period Useful Lives Or Depreciation Rates, Property, Plant And Equipment, Period Schedule of disclosure of expected impact of initial application of new standards Disclosure of expected impact of initial application of new standards or interpretations [text block] Schedule of detailed information about property, plant and equipment Disclosure of detailed information about property, plant and equipment [text block] Schedule of detailed information about intangible assets Disclosure of detailed information about intangible assets [text block] Related Party Transactions Disclosure of related party [text block] Disclosure of commitments [Abstract] Disclosure of commitments [Abstract] Schedule of operating leases and other contractual commitments Disclosure Of Finance Lease, Operating Lease and Other Contractual Commitments [Table Text Block] Disclosure Of Finance Lease, Operating Lease and Other Contractual Commitments ECL allowances Summary of Significant Accounting Policies Disclosure of significant accounting policies [text block] Schedule of expenses Disclosure Of Analysis Of Expense [Table Text Block] Disclosure Of Analysis Of Expense [Table Text Block] Disclosure of finance lease and operating lease by lessee [Table] Disclosure of finance lease and operating lease by lessee [Table] Disclosure of finance lease and operating lease by lessee Disclosure of finance lease and operating lease by lessee [Line Items] Disclosure of finance lease and operating lease by lessee [Line Items] [Line Items] for Disclosure of finance lease and operating lease by lessee Term of non-cancellable operating leases Lessee, Operating Lease, Term Of Contract Lessee, Operating Lease, Term Of Contract Lease and sublease payments recognized as expense Lease And Sublease Payments Recognised As Expense Lease And Sublease Payments Recognised As Expense Term of non-cancellable contractual commitments Other Commitment, Term Of Contract Other Commitment, Term Of Contract Disclosure of maturity analysis for derivative financial liabilities [table] Disclosure of maturity analysis for derivative financial liabilities [table] Under 12 months Over 12 months Non Hedge Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Disclosure of maturity analysis for derivative financial liabilities [line items] Disclosure of maturity analysis for derivative financial liabilities [line items] Derivative, notional amount Notional amount Marketable equity securities Other equity securities [member] Security deposits Other Other Miscellaneous Non-current Assets Other Miscellaneous Non-current Assets Total other non-current assets Revenue that was included in deferred revenue balance at the beginning of the period Revenue that was included in contract liability balance at beginning of period Increase to deferred revenue balance from acquisitions Increase through business combinations, contract liabilities Transaction price allocated to remaining performance obligations Transaction price allocated to remaining performance obligations Period to recognize transaction price allocated to remaining performance obligations Transaction Price Allocated To Remaining Performance Obligations, Period Transaction Price Allocated To Remaining Performance Obligations, Period Disclosure of transaction price allocated to remaining performance obligations [table] Disclosure of transaction price allocated to remaining performance obligations [table] Disclosure of transaction price allocated to remaining performance obligations [line items] Disclosure of transaction price allocated to remaining performance obligations [line items] Percentage of transaction price allocated to remaining performance obligations Transaction Price Allocated To Remaining Performance Obligations, Percentage Transaction Price Allocated To Remaining Performance Obligations, Percentage Disclosure of disaggregation of revenue from contracts with customers [table] Disclosure of disaggregation of revenue from contracts with customers [table] United States United Kingdom Country of domicile [member] Disclosure of disaggregation of revenue from contracts with customers [line items] Disclosure of disaggregation of revenue from contracts with customers [line items] Revenue Disclosure of reconciliation of liabilities arising from financing activities [table] Disclosure of reconciliation of liabilities arising from financing activities [table] Liabilities arising from financing activities [axis] Liabilities arising from financing activities [axis] Liabilities arising from financing activities [member] Liabilities arising from financing activities [member] Capped call assets Assets held to hedge liabilities arising from financing activities [member] Accrued interest Interest Payable [Member] Interest Payable Disclosure of reconciliation of liabilities arising from financing activities [line items] Disclosure of reconciliation of liabilities arising from financing activities [line items] Changes in liabilities arising from financing activities [abstract] Changes in liabilities arising from financing activities [abstract] Beginning balance Liabilities arising from financing activities Cash flows Increase (decrease) through financing cash flows, liabilities arising from financing activities Amortization of debt discount and issuance cost Increase (Decrease) Through Amortization Of Debt Issue Costs, Liabilities Arising From Financing Activities Increase (Decrease) Through Amortization Of Debt Issue Costs, Liabilities Arising From Financing Activities Fair value changes Increase (decrease) through changes in fair values, liabilities arising from financing activities Accrual of interest Increase (Decrease) Through Accrual of Interest, Liabilities Arising From Financing Activities Increase (Decrease) Through Accrual of Interest, Liabilities Arising From Financing Activities Other Increase (decrease) through other changes, liabilities arising from financing activities Ending balance Disclosure of detailed information about property, plant and equipment [abstract] Property and Equipment Disclosure of property, plant and equipment [text block] Disclosure of Non-Financial Assets [Table] Disclosure of Non-Financial Assets [Table] Disclosure of Non-Financial Assets [Table] Computer hardware and software Patents and trademarks Customer relationships Customer-related intangible assets [member] Acquired developed technology Technology-based intangible assets [member] Disclosure of Non-Financial Assets [Line Items] Disclosure of Non-Financial Assets [Line Items] [Line Items] for Disclosure of Non-Financial Assets [Table] Total depreciation Depreciation expense Total amortization Amortisation expense Total depreciation and amortization Depreciation and amortisation expense Employee benefits expense: Classes of employee benefits expense [abstract] Salaries and wages Wages and salaries Variable compensation Variable Compensation Variable Compensation Payroll taxes Payroll Taxes Payroll Taxes Share-based payment expense Defined contribution plan expense Post-employment benefit expense, defined contribution plans Contractor expense Contractor Expense Contractor Expense Other Other employee expense Total employee benefits expense Employee benefits expense Schedule of reconciliation of the calculation of basic and diluted earnings (loss) per share Earnings per share [text block] Schedule of contractual maturities of financial liabilities Disclosure of maturity analysis for non-derivative financial liabilities [text block] Schedule of financial assets measured at fair value Disclosure of fair value measurement of assets [text block] Schedule of financial liabilities measured at fair value Disclosure of fair value measurement of liabilities [text block] Schedule of Group's investments Disclosure of financial assets [text block] Schedule of fair value of derivative instruments Disclosure of detailed information about hedging instruments [text block] Schedule of notional amounts of derivative instruments Disclosure of maturity analysis for derivative financial liabilities [text block] Schedule of effects of derivatives designated as hedging instruments on consolidated financial statements Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [text block] Expenses Disclosure of expenses [text block] Measurement [axis] Measurement [axis] Aggregated measurement [member] Aggregated measurement [member] At fair value At fair value [member] Classes of intangible assets other than goodwill [axis] Classes of intangible assets other than goodwill [axis] Intangible assets other than goodwill [member] Intangible assets other than goodwill [member] Developed technology Trade names Brand names [member] Cash and cash equivalents [abstract] Cash and cash equivalents [abstract] Investment [Axis] Investment [Axis] Investment [Domain] Investment [Domain] Corporate debt securities Agency securities Commercial paper Commercial Paper, Classified As Cash Equivalents [Member] Commercial Paper, Classified As Cash Equivalents [Member] Money market funds Money Market Funds1 [Member] Money Market Funds1 [Member] Certificates of deposit and time deposits Certificate of Deposits and Time Deposits, Classified as Cash and Cash Equivalent [Member] Certificate of Deposits and Time Deposits, Classified as Cash and Cash Equivalent Cash and bank deposits Cash Amounts due from third-party credit card processors Receivables Due From Credit Card Processors Receivables Due From Credit Card Processors Short-term investments, classified as cash equivalents Short-term investments, classified as cash equivalents Total cash and cash equivalents Changes in allowance account for credit losses of financial assets [abstract] Changes in allowance account for credit losses of financial assets [abstract] Beginning balance Change in estimate Additional allowance recognised in profit or loss, allowance account for credit losses of financial assets Ending balance Trade Receivables Disclosure of trade and other receivables [text block] Share-based Payments Disclosure of share-based payment arrangements [text block] Schedule of compensation for the Company's key management personnel Disclosure of transactions between related parties [text block] Current provisions: Current provisions [abstract] Employee benefits Current provisions for employee benefits Non-current provisions: Non-current provisions [abstract] Employee benefits Non-current provisions for employee benefits Dilapidation provision Provision For Dilapidation Provision For Dilapidation Total non-current provisions Income Tax Disclosure of income tax [text block] 2014 Plan Plan 2014 [Member] Plan 2014 [Member] Options Plan Options Plan [Member] Options Plan [Member] Vesting [Axis] Vesting1 [Axis] Vesting1 [Axis] Vesting [Domain] Vesting1 [Domain] [Domain] for Vesting1 [Axis] One year anniversary Share-based Compensation Award, Year One Vesting [Member] Share-based Compensation Award, Year One Vesting [Member] Over three years Share-based Compensation Award, Quarterly Vesting After Year One [Member] Share-based Compensation Award, Quarterly Vesting After Year One [Member] Thereafter Share-based Compensation Award, Monthly Vesting After Year One [Member] Share-based Compensation Award, Monthly Vesting After Year One [Member] Number of share-based employee compensation plans (shares) Number Of Share-Based Employee Compensation Plans Number Of Share-Based Employee Compensation Plans Shares reserved for issuance of awards (shares) Common Stock, Capital Shares Reserved For Future Issuance1 Common Stock, Capital Shares Reserved For Future Issuance1 Award vesting rights, percentage Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Rights, Percentage1 Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Rights, Percentage1 Number of share options available for exercise (shares) Number of other equity instruments exercisable in share-based payment arrangement Expected term (in years) Option life, share options granted Award vesting period Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Period Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Period Exercisable period of options upon termination Share-Based Compensation Arrangement By Share-Based Payment Award, Exercisable Term of Options Upon Termination Share-Based Compensation Arrangement By Share-Based Payment Award, Exercisable Term of Options Upon Termination Number of shares added to pool of shares available for issuance (shares) Weighted average remaining contractual life of outstanding share options Weighted average remaining contractual life of outstanding share options Weighted-average remaining contractual live of options exercisable (years) Weighted Average Remaining Contractual Life Of Exercisable Share Options Weighted Average Remaining Contractual Life Of Exercisable Share Options Weighted-average grant date fair value of awards granted (USD per share) Weighted average exercise price of other equity instruments granted in share-based payment arrangement Share options granted (shares) Number of share options granted in share-based payment arrangement Future period share-based payment expense Employee Service Share-Based Compensation, Nonvested Awards, Total Compensation Cost Not Yet Recognized1 Employee Service Share-Based Compensation, Nonvested Awards, Total Compensation Cost Not Yet Recognized1 Weighted-average remaining period for recognition of future share-based payment expense (years) Employee Service Share-Based Compensation, Unvested Awards, Total Compensation Cost Not Yet Recognized, Period For Recognition Employee Service Share-Based Compensation, Unvested Awards, Total Compensation Cost Not Yet Recognized, Period For Recognition Number of shares issued subject to forfeiture (shares) Number Of Shares Issued In Share-Based Payment Arrangement Subject To Forfeiture Number Of Shares Issued In Share-Based Payment Arrangement Subject To Forfeiture Weighted average grant date fair value of shares issued subject to forfeiture (USD per share) Number Of Shares Outstanding In Share-Based Payment Arrangement Subject To Forfeiture, Grant Date Fair Value Per Share Number Of Shares Outstanding In Share-Based Payment Arrangement Subject To Forfeiture, Grant Date Fair Value Per Share Number of shares outstanding subject to forfeiture or repurchase (shares) Number Of Shares Outstanding In Share-Based Payment Arrangement Subject To Forfeiture Or Repurchase Number Of Shares Outstanding In Share-Based Payment Arrangement Subject To Forfeiture Or Repurchase Schedule of exchangeable debt Disclosure of detailed information about borrowings [text block] Schedule of reconciliation of assets and liabilities arising from financing activities Disclosure of reconciliation of liabilities arising from financing activities [text block] Schedule of detailed information about business combinations Disclosure of detailed information about business combination [text block] Disclosure of geographical areas [abstract] Geographic Information Disclosure Of Geographic Information [Text Block] Disclosure Of Geographic Information Disclosure of detailed information about intangible assets [table] Disclosure of detailed information about intangible assets [table] Patents, trademarks and other rights Patents, trademarks and other rights [Member] Patents, trademarks and other rights [Member] Disclosure of detailed information about intangible assets [line items] Disclosure of detailed information about intangible assets [line items] Estimated useful lives of intangible assets Current income tax: Current tax expense (income) and adjustments for current tax of prior periods [abstract] Current income tax charge Current tax expense (income) Deferred tax: Deferred Tax Expense (Income) And Adjustments For Current Tax Of Prior Periods [Abstract] Deferred Tax Expense (Income) And Adjustments For Current Tax Of Prior Periods [Abstract] Benefit (expense) relating to origination and reversal of temporary differences Deferred tax expense (income) relating to origination and reversal of temporary differences Year ending 2020 Years ending 2021 - 2024 Later than one year and not later than five years [member] Thereafter Later than five years [member] Operating Leases Minimum Lease Payments Payable Under Non-cancellable Operating Lease Minimum Lease Payments Payable Under Non-cancellable Operating Lease Other Contractual Commitments Other Commitments1 Other Commitments1 Total Contractual Obligation1 Contractual Obligation1 Americas Americas [Member] EMEA EMEA1 [Member] EMEA1 [Member] Asia Pacific Asia Pacific [Member] Statement of IFRS compliance Statement of IFRS compliance [text block] Critical accounting estimates and judgments Explanation of measurement bases used in preparing financial statements [text block] Functional currency Description of accounting policy for functional currency [text block] Principles of consolidation Description of accounting policy for subsidiaries [text block] Segment Description of accounting policy for segment reporting [text block] Foreign currency Description of accounting policy for foreign currency translation [text block] Revenue recognition Description of accounting policy for recognition of revenue [text block] Cash and cash equivalents Description of accounting policy for determining components of cash and cash equivalents [text block] Financial instruments Description of accounting policy for financial assets [text block] Fair value measurement Description of accounting policy for fair value measurement [text block] Property and equipment Description of accounting policy for property, plant and equipment [text block] Business combinations Description of accounting policy for business combinations [text block] Goodwill Description of accounting policy for goodwill [text block] Intangible assets Description of accounting policy for intangible assets other than goodwill [text block] Long-lived assets Description of accounting policy for impairment of assets [text block] Share-based payments Description of accounting policy for share-based payment transactions [text block] Leases Description of accounting policy for leases [text block] Research and development Description of accounting policy for research and development expense [text block] Taxation Description of accounting policy for income tax [text block] New accounting standards not yet adopted Description Of Accounting Policy For New Accounting Pronouncements [Policy Text Block] Description of accounting policy for new accounting pronouncements [Policy Text Block] Schedule of reconciliation of changes in goodwill Disclosure of reconciliation of changes in goodwill [text block] Schedule of intangible assets Schedule of classes of share capital Disclosure of classes of share capital [text block] Net deferred tax—debited directly to equity Current and deferred tax recognized directly in equity Current and deferred tax relating to items credited (charged) directly to equity Merger reserve [member] Merger reserve [member] Capital redemption reserve Capital redemption reserve [member] Capital redemption and merger reserves Capital Redemption Reserve And Merger Reserve [Member] Capital Redemption Reserve And Merger Reserve [Member] Par value per share (USD per share) Par value per share Automatic conversion, percentage of total shares outstanding (less than 10%) Convertible Instruments, Automatic Conversion, Percentage Of Total Shares Outstanding Convertible Instruments, Automatic Conversion, Percentage Of Total Shares Outstanding Shares issued upon conversion (shares) Convertible Instruments, Shares Issued Upon Conversion Convertible Instruments, Shares Issued Upon Conversion Optional conversion, percentage of conversion consent (more than 66.66%) Convertible Instruments, Optional Conversion, Percentage of Conversion Consent Convertible Instruments, Optional Conversion, Percentage of Conversion Consent Ordinary stock, voting rights per share Ordinary Stock, Voting Rights Ordinary Stock, Voting Rights Capital reserves Other Balance Sheet Accounts Other Balance Sheet Accounts [Text Block] Other Balance Sheet Accounts [Text Block] Depreciation for tax purposes Property, Plant And Equipment Related Temporary Differences [Member] Property, Plant And Equipment Related Temporary Differences Provisions, accruals and prepayments Provisions, Accruals And Prepayments Related Temporary Differences [Member] Provisions, Accruals And Prepayments Related Temporary Differences [Member] Deferred revenue Deferred Revenue Related Temporary Differences [Member] Deferred Revenue Related Temporary Differences [Member] Unrealized foreign currency exchange (gains) losses Unrealised foreign exchange gains (losses) [member] Unrealized investment (gains) losses Unrealized Investments Gains (Losses) [Member] Unrealized Investments Gains (Losses) Carried forward tax losses (gains) Unused tax losses [member] Carried forward tax credits—credited to profit and loss Unused tax credits [member] Intangible assets Acquired Intangible Assets Related Temporary Differences [Member] Acquired Intangible Assets Related Temporary Differences [Member] Tax benefit (expense) from share plans—income Tax Benefit From Share Plans, Income [Member] Tax Benefit From Share Plans, Income [Member] Tax benefit (expense) from share plans—equity Tax Benefit From Share Plans, Equity [Member] Tax Benefit From Share Plans, Equity [Member] Deferred foreign taxes Deferred Foreign Taxes [Member] Deferred Foreign Taxes Other, net Other temporary differences [member] Reflected in the consolidated statements of financial position as follows: Deferred tax assets and liabilities [abstract] Deferred tax assets, net Deferred tax benefit Deferred tax expense (income) Deferred tax liabilities Items for which no deferred tax asset has been recognized: Items For Which No Deferred Tax Asset Has Recognized [Abstract] Items For Which No Deferred Tax Asset Has Recognized [Abstract] Depreciation and amortization for tax purposes Depreciation And Amortization For Which No Deferred Tax Asset Recognized Depreciation And Amortization For Which No Deferred Tax Asset Recognized Provisions, accruals and prepayments Provisions, Accruals And Prepayments For Which No Deferred Tax Asset Recognized Provisions, Accruals and Prepayments For Which No Deferred Tax Asset Recognized Deferred revenue Deferred Revenue For Which No Deferred Tax Asset Recognized Deferred Revenue For Which No Deferred Tax Asset Recognized Unrealized foreign currency exchange gains Unrealized Foreign Exchange Gains For Which No Deferred Tax Asset Recognized Unrealized Foreign Exchange Gains For Which No Deferred Tax Asset Recognized Intangible assets Acquired Intangible Assets For Which No Deferred Tax Asset Recognized Acquired Intangible Assets For Which No Deferred Tax Asset Recognized Tax benefit from share plans- income Tax Benefit Income From Benefit Plans For Which No Deferred Tax Asset Recognized Tax Benefit Income From Benefit Plans For Which No Deferred Tax Asset Recognized Tax benefit from share plans- equity Tax Benefit Equity From Benefit Plans For Which No Deferred Tax Asset Recognized Tax Benefit Equity From Benefit Plans For Which No Deferred Tax Asset Recognized Capital loss Capital Loss For Which No Deferred Tax Asset Recognized Capital Loss For Which No Deferred Tax Asset Recognized Carried forward tax credits- credited to profit and loss Tax Credit Carryforward For Which No Deferred Tax Asset Recognized Tax Credit Carryforward For Which No Deferred Tax Asset Recognized Unrealized loss on investments Unrealized Loss On Investments For Which No Deferred Tax Asset Recognized Unrealized Loss On Investments For Which No Deferred Tax Asset Recognized Other, net Other Items, Net, For Which No Deferred Tax Asset Recognized Other Items, Net, For Which No Deferred Tax Asset Recognized Items for which no deferred tax assets is recognized Items For Which No Deferred Tax Assets Recognized Items For Which No Deferred Tax Assets Recognized Reconciliation of deferred tax assets, net Reconciliation of changes in deferred tax liability (asset) [abstract] Balance at the beginning of Deferred tax expense for the year Deferred tax expense (income) recognised in profit or loss Debited to equity Adjustment in respect of income tax payable Increase (Decrease) Relating To Income Tax Payable Increase (Decrease) Relating To Income Tax Payable Impact from business combinations Currency revaluation impact Increase (decrease) through net exchange differences, deferred tax liability (asset) Balance at the ending of Commitments Disclosure of commitments [text block] Trade payables Trade payables Accrued expenses Accruals classified as current Accrued compensation and employee benefits Short-term employee benefits accruals Sales and indirect taxes Current payables on social security and taxes other than income tax Operating lease payable Current lease liabilities Customer deposit Deposits from customers Other payables Other current payables Total trade and other current payables Exchange derivative allocated issuance costs Other Non-Operating Income (Expense) Exchange Derivative Allocated To Debt Issuance Costs Other Non-Operating Income (Expense) Exchange Derivative Allocated to Debt Issuance Costs Net unrealized loss on exchange derivative and capped calls Losses on change in fair value of derivatives Foreign currency exchange loss, net Foreign exchange gain (loss) Contributions to Atlassian Foundation Other Non-Operating Income (Expense), Contributions To Affiliate Other Non-Operating Income (Expense), Contributions To Affiliate Other income Miscellaneous Other Non-Operating Income Miscellaneous Other Non-Operating Income Other non-operating expense, net Disclosure of fair value measurement of assets [table] Disclosure of fair value measurement of assets [table] Level 1 Level 1 of fair value hierarchy [member] Level 2 Level 2 of fair value hierarchy [member] Cash and cash equivalents Cash And Cash Equivalents1 [Member] Cash And Cash Equivalents1 [Member] Short-term Investments Other non-current assets Money market funds U.S. treasury securities U.S. Treasury Securities, Classified As Cash Equivalents [Member] U.S. Treasury Securities, Classified As Cash Equivalents Agency securities Agency Securities, Classified As Cash Equivalents [Member] Agency Securities, Classified As Cash Equivalents [Member] Certificates of deposit and time deposits Certificates of Deposit and Time Deposits, Classified as Cash or Cash Equivalent [Member] [Member] Certificates of Deposit and Time Deposits, Classified as Cash or Cash Equivalent [Member] [Member] Commercial paper Corporate debt securities Corporate Debt Securities, Classified As Cash Equivalents [Member] Corporate Debt Securities, Classified As Cash Equivalents Certificates of deposit and time deposits Certificates of Deposit and Time Deposits, Classified as Other Non-Current Asset [Member] [Member] Certificates of Deposit and Time Deposits, Classified as Other Non-Current Asset [Member] [Member] Hedging Exchangeable feature of Notes Types of financial liabilities [axis] Types of financial liabilities [axis] Financial liabilities, type [member] Financial liabilities, type [member] Notes Embedded Exchange Derivative Disclosure of fair value measurement of assets [line items] Disclosure of fair value measurement of assets [line items] Total assets measured at fair value Total liabilities measured at fair value Financial liabilities Statement of comprehensive income [abstract] Items that will not be reclassified to profit or loss in subsequent periods: Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract] Net change in unrealized gain on investments classified at fair value through other comprehensive income Other comprehensive income, before tax, gains (losses) from investments in equity instruments Income tax effect Income tax relating to investments in equity instruments included in other comprehensive income Other comprehensive income for items that will not be reclassified to profit or loss, net of tax Other comprehensive income that will not be reclassified to profit or loss, net of tax Items that will be reclassified to profit or loss in subsequent periods: Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] Foreign currency translation adjustment Other comprehensive income, before tax, exchange differences on translation Net change in unrealized gain (loss) on investments classified at fair value through other comprehensive income (loss) Other comprehensive income, before tax, financial assets measured at fair value through other comprehensive income Net gain (loss) on derivatives designated as hedging instruments Other comprehensive income, before tax, cash flow hedges Income tax effect Income tax relating to components of other comprehensive income that will be reclassified to profit or loss Other comprehensive income (loss) after tax that will be reclassified to profit or loss in subsequent periods Other comprehensive income that will be reclassified to profit or loss, net of tax Other comprehensive income (loss) Other comprehensive income Total comprehensive loss, net of tax, attributable to: Comprehensive income attributable to [abstract] Computer Hardware and Software Furniture and Fittings Leasehold Improvements and Other Leasehold Improvements and Other [Member] Leasehold Improvements and Other Accumulated depreciation Accumulated depreciation and amortisation [member] Reconciliation of changes in property, plant and equipment [abstract] Reconciliation of changes in property, plant and equipment [abstract] Opening balance Additions Additions other than through business combinations, property, plant and equipment Disposals Disposals and retirements, property, plant and equipment Effect of change in exchange rates Increase (decrease) through net exchange differences, property, plant and equipment Depreciation expense Depreciation, property, plant and equipment Closing balance Reconciliation of number of shares outstanding [abstract] Reconciliation of number of shares outstanding [abstract] Number of Shares Changes in number of shares outstanding [abstract] Beginning balance (shares) Number of shares outstanding Conversion of ordinary shares (shares) Increase (Decrease) In Number Of Shares Outstanding, Conversion Of Stock, Shares Issued Increase (Decrease) In Number Of Shares Outstanding, Conversion Of Stock, Shares Issued Exercise of share options (shares) Increase (Decrease) In Number Of Shares Outstanding, Stock Options Exercised Increase (Decrease) In Number Of Shares Outstanding, Stock Options Exercised Issuance for settlement of RSUs (shares) Increase (Decrease) In Number Of Shares Outstanding, Issuance For Settlement Of Restricted Stock Units Increase (Decrease) In Number Of Shares Outstanding, Issuance For Settlement Of Restricted Stock Units Vesting of share options that were early exercised (shares) Increase (Decrease) In Number Of Shares Outstanding, Options Vested, Number Of Shares Increase (Decrease) In Number Of Shares Outstanding, Options Vested, Number Of Shares Ending balance (shares) Amount Change In Issued Capital [Abstract] Change In Issued Capital [Abstract] Beginning balance Conversion of ordinary shares Increase (decrease) through conversion of convertible instruments, equity Exercise of share options Increase (decrease) through exercise of options, equity Issuance for settlement of RSUs Vesting of share options that were early exercised Ending balance Goodwill and Intangible Assets Disclosure of intangible assets and goodwill [text block] Business Combinations Disclosure of business combinations [text block] Schedule of cash and cash equivalents Disclosure of cash and cash equivalents [text block] Schedule of prepaid expenses and other current assets Disclosure Of Prepaid Expenses And Other Current Assets Explanatory [Table Text Block] Disclosure Of Prepaid Expenses And Other Current Assets Explanatory [Table Text Block] Schedule of other non-current assets Disclosure of other non-current assets [text block] Schedule of disclosure of trade and other payables Disclosure of trade and other payables [text block] Schedule of current provisions Disclosure Of Current Provisions Explanatory [Table Text Block] Disclosure Of Current Provisions Explanatory [Table Text Block] Schedule of non-current provisions Disclosure Of Non-Current Provisions Explanatory [Table Text Block] Disclosure Of Non-Current Provisions Explanatory [Table Text Block] Schedule of other non-current liabilities Disclosure of other non-current liabilities [text block] Corporate Information1 [Abstract] Corporate Information1 [Abstract] Corporate Information Disclosure of notes and other explanatory information [text block] Patents, Trademarks and Other Rights Accumulated depreciation, amortisation and impairment Accumulated depreciation, amortisation and impairment [member] Opening balance Additions Acquisitions through business combinations, intangible assets other than goodwill Disposals Disposals, intangible assets other than goodwill Effect of change in exchange rates Increase (decrease) through net exchange differences, intangible assets other than goodwill Amortization charge Closing balance Accounting Judgments and Estimates [Abstract] Accounting Judgments and Estimates [Abstract] Critical Accounting Estimates and Judgments Disclosure of accounting judgements and estimates [text block] Schedule of Group's non-current operating assets by geographic regions Disclosure of geographical areas [text block] Capitalised development expenditure Capitalised development expenditure [member] Impairment of goodwill Impairment loss recognised in profit or loss, goodwill Development costs qualified for capitalization Development Costs, Period Cost Development Costs, Period Cost Remaining amortization period of intangible assets material to entity Remaining amortisation period of intangible assets material to entity Number of shares outstanding (shares) Schedule of major components of income tax (expense) benefit Disclosure Of Major Components Of Tax Expense (Income) [Table Text Block] Disclosure Of Major Components Of Tax Expense (Income) [Table Text Block] Schedule of reconciliation of income tax (expense) benefit Disclosure Of Reconciliation Of Accounting Profit Multiplied By Applicable Tax Rates And Effective Tax Rate [Table Text Block] Disclosure Of Reconciliation Of Accounting Profit Multiplied By Applicable Tax Rates And Effective Tax Rate [Table Text Block] Schedule of reconciliation of deferred tax assets, net Disclosure of temporary difference, unused tax losses and unused tax credits [text block] Schedule of current and net deferred tax recognized directly in equity Disclosure Of Current And Deferred Tax Relating To Items Charged Or Credited Directly To Equity, Explanatory [Table Text Block] Disclosure Of Current And Deferred Tax Relating To Items Charged Or Credited Directly To Equity, Explanatory [Table Text Block] Schedule of losses and credits available for offsetting future profit and taxes Disclosure Of Losses And Credits Available To Offset Future Profit And Taxes Explanatory [Table Text Block] Disclosure Of Losses And Credits Available To Offset Future Profit And Taxes Explanatory Schedule of disaggregated revenue Disclosure of disaggregation of revenue from contracts with customers [text block] Disclosure of number and weighted average remaining contractual life of outstanding share options [table] Disclosure of number and weighted average remaining contractual life of outstanding share options [table] Ranges of exercise prices for outstanding share options [axis] Ranges of exercise prices for outstanding share options [axis] Ranges of exercise prices for outstanding share options [member] Ranges of exercise prices for outstanding share options [member] $0.59 - 0.66 Exercise Price Range One [Member] Exercise Price Range One [Member] $1.14 Exercise Price Range Two [Member] Exercise Price Range Two [Member] $1.14 - 1.59 Exercise Price Range Six [Member] Exercise Price Range Six [Member] $1.92 - 2.16 Exercise Price Range Three [Member] Exercise Price Range Three [Member] $2.40 - 2.92 Exercise Price Range Four [Member] Exercise Price Range Four [Member] $3.18 Exercise Price Range Five [Member] Exercise Price Range Five [Member] Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] Options outstanding, exercise price (USD per share) Exercise price of outstanding share options Options outstanding, number (shares) Options outstanding, weighted average exercise price (USD per share) Options exercisable, number (shares) Options exercisable, weighted average exercise price (USD per share) Options exercisable, weighted average remaining years Disclosure of income tax [Abstract] Disclosure of income tax [Abstract] Tax Period1 [Axis] Tax Period1 [Axis] Tax Period1 Tax Period1 [Domain] Tax Period1 [Domain] [Domain] for Tax Period1 Pre-2017 U.S. Tax Reform Before 2017 Tax Year [Member] Before 2017 Tax Year Post-2017 U.S. Tax Reform After 2017 Tax Year [Member] After 2017 Tax Year TaxCreditCarryforward1 [Axis] TaxCreditCarryforward1 [Axis] TaxCreditCarryforward1 TaxCreditCarryforwardAxis1 [Domain] TaxCreditCarryforwardAxis1 [Domain] [Domain] for TaxCreditCarryforward1 Research and development carryforward Research Tax Credit Carryforward1 [Member] Research Tax Credit Carryforward1 Capital loss carryforward Capital Loss Carryforward1 [Member] Capital Loss Carryforward1 Enterprise zone credits carryforward Zone Credits Carryforward [Member] Zone Credits Carryforward Income Tax Authority, Name1 [Axis] Income Tax Authority, Name1 [Axis] Income Tax Authority, Name1 Income Tax Authority, Name1 [Domain] Income Tax Authority, Name1 [Domain] [Domain] for Income Tax Authority, Name1 State State And Local Jurisdiction1 [Member] State And Local Jurisdiction1 [Member] U.K. California California Franchise Tax Board1 [Member] California Franchise Tax Board1 Texas Texas Franchise Tax Board1 [Member] Texas Franchise Tax Board1 Australia Australian Taxation Office1 [Member] Australian Taxation Office1 Expiration Date [Axis] Expiration Date [Axis] Expiration Date [Axis] Expiration Date [Domain] Expiration Date [Domain] Expiration Date June 30, 2032-December 30, 2037 Expiration Date One [Member] Expiration Date One June 30, 2024-June 30, 2039 Expiration Date Two [Member] Expiration Date Two June 30, 2031-June 30, 2030 Expiration Date Three [Member] Expiration Date Three June 30, 2036-June 30, 2039 Expiration Date Four [Member] Expiration Date Four June 30, 2020-June 30, 2024 Expiration Date Five [Member] Expiration Date Five Net operating loss, amount carried forward Net operating loss, amount recognized Operating Loss Carryforwards, Amount Recognized Operating Loss Carryforwards, Amount Recognized Tax credits, amount carried forward Tax Credit Carryforward Tax Credit Carryforward Tax credits, amounts recognized Tax Credit Carryforward, Amount Recognized Tax Credit Carryforward, Amount Recognized Disclosure of geographical areas [table] Disclosure of geographical areas [table] Australia AUSTRALIA India INDIA Disclosure of geographical areas [line items] Disclosure of geographical areas [line items] Non-current operating assets Non-current assets other than financial instruments, deferred tax assets, post-employment benefit assets, and rights arising under insurance contracts Disclosure of maturity analysis for non-derivative financial liabilities [table] Disclosure of maturity analysis for non-derivative financial liabilities [table] Liquidity risk Liquidity risk [member] Greater than 12 Months Disclosure of maturity analysis for non-derivative financial liabilities [line items] Disclosure of maturity analysis for non-derivative financial liabilities [line items] Trade and other payables Trade and other payables, undiscounted cash flows Derivative liabilities Derivative financial liabilities, undiscounted cash flows Exchangeable senior notes Debt Issued, Undiscounted Cash Flows Debt Issued, Undiscounted Cash Flows Financial liabilities Financial Liabilities, Undiscounted Cash Flows Financial Liabilities, Undiscounted Cash Flows Numerator: Profit (loss) [abstract] Net loss attributable to ordinary shareholders Denominator: Weighted-average ordinary shares outstanding—basic (shares) Weighted-average ordinary shares outstanding—diluted (shares) Net loss per share attributable to ordinary shareholders: Profit (loss), attributable to ordinary equity holders of parent entity [abstract] Potentially anti-dilutive shares excluded from computation of net loss per share (shares) Potentially Dilutive Securities Excluded From Computation Of Earnings Per Share Potentially Dilutive Securities Excluded From Computation Of Earnings Per Share