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Temporary Equity Stock Repurchased During Period Value Temporary Equity, Repurchase of Series A redeemable convertible preferred stock Deferred Tax Liabilities, Gross Total gross deferred tax liabilities Deferred Tax Liabilities, Gross, Total Deferred tax liabilities property and equipment including right of use assets. 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Unrealized Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Balance at the end of the period Balance at the beginning of the period Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Change in valuation allowance Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Additions for tax positions of current year Hedging Relationship [Domain] Hedging Relationship Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Summary of Total Gross Notional Amounts of Outstanding Derivatives Two thousand twenty two employee stock purchase plan. 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Executive Chair [Member] Executive Chair Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount Stock-based compensation Stock-based compensation increase (decrease) in Income tax provision Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Number of Options, Granted Other Accrued Liabilities, Current Other Share-Based Compensation Arrangement by Share-Based Payment Award, Description Share-based payment award, description Share based compensation purchase plan description Additional Paid in Capital Additional paid-in capital Additional Paid in Capital, Total Common Class B [Member] Class B Common Stock Operating Leases, Rent Expense Operating leases, rent expense Equity, Attributable to Parent [Abstract] Stockholders’ equity: Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Percentage of merchants payable amount denominated in other than functional currency. Percentage Of Merchants Payable Amount Denominated In Other Than Functional Currency Percentage of merchants payable amount denominated in RMB Lease, Cost [Table Text Block] Components of Lease Costs Derivative, Term of Contract Derivative contract term Line of Credit Facility, Maximum Borrowing Capacity Senior secured revolving credit facility Line of credit facility, additional borrowing capacity. Line Of Credit Facility Additional Borrowing Capacity Aggregate commitments Decrease in deferred revenue and customer deposits Increase (decrease) in deferred revenue and customer deposits. Increase Decrease In Deferred Revenue And Customer Deposits Decrease in deferred revenue and customer deposits Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value Aggregate fair value of options vested Earnings Per Share [Abstract] Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Maturities of Operating Lease Liabilities Impairment and termination related charges. Impairment And Termination Related Charges Impairment and termination related charges Accounting Policies [Abstract] Number of finance leases outstanding. Number Of Finance Leases Outstanding Number of finance leases outstanding Lessee, Lease, Description [Table] Lessee Lease Description [Table] Logistics. Logistics [Member] Logistics Revenue Summary of significant accounting policies. Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Stock Issued During Period, Shares, Conversion of Units Issuance of common stock upon settlement of restricted stock units, Shares SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Balance at End of Period Balance at Beginning of Period Concentration Risk, Credit Risk, Policy [Policy Text Block] Concentration of Risk Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Percentage of decrease in deferred revenue due to to lower logistics volumes. Percentage Of Decrease In Deferred Revenue Due To To Lower Logistics Volumes Percentage of decrease in deferred revenue due to to lower logistics volumes Revolving Credit Facility [Member] Revolving Credit Facility Net loss per share, basic Earnings Per Share, Basic, Total1 Earnings Per Share, Basic Inventory Write-down Noncash inventory write downs Two thousand twenty employee stock purchase plan. Two Thousand Twenty Employee Stock Purchase Plan [Member] 2020 Employee Stock Purchase Plan Commitments and Contingencies Commitments and contingencies (Note 7) Temporary equity, stock repurchased during period, shares. Temporary Equity Stock Repurchased During Period Shares Temporary Equity, Repurchase of Series A redeemable convertible preferred stock, Shares Debt Securities, Available-for-Sale, Term Original maturities of marketable securities Increase decrease in merchants payable. Increase Decrease In Merchants Payable Merchants payable Income Statement [Abstract] LIBOR LIBOR [Member] LIBOR. Share-based compensation arrangements by share-based payment award, options, vested in period, weighted average exercise price. Share Based Compensation Arrangements By Share Based Payment Award Options Vested In Period Weighted Average Exercise Price Weighted-Average Exercise Price, Vested Performance Shares [Member] PSUs Performance-Based Units ("PSUs") Operating Lease, Cost Operating lease costs Short-Term Lease, Cost Short-term lease costs Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Unrecognized tax benefits interest or penalties Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total Debt securities available for sale contractual maturity. Debt Securities Available For Sale Contractual Maturity Table [Text Block] Schedule of Contractual Maturities of Marketable Securities Employee stock purchase plan. Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan ESPP South America [Member] South America Statistical Measurement [Domain] Statistical Measurement Net Cash Provided by (Used in) Operating Activities Net cash used in operating activities Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested Aggregate intrinsic value vested Document Period End Date Document Period End Date Statistical Measurement [Axis] Statistical Measurement Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Operating Lease, Payments Operating cash flows from operating leases Temporary equity stock issued during period shares new issues. Temporary Equity Stock Issued During Period Shares New Issues Issuance of Series H redeemable convertible preferred stock for cash, at $16.9573 per share, net of issuance costs,Shares Net loss per share, diluted Earnings Per Share, Diluted, Total Earnings Per Share, Diluted Two thousand ten equity incentive plan. Two Thousand Ten Equity Incentive Plan [Member] 2010 Equity Incentive Plan Product and Service [Domain] Product and Service Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments Net gains or losses on change in fair value of foreign exchange forward contracts Deferred Tax Assets, Operating Loss Carryforwards Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards, Total Unrecognized Tax Benefits Balance at December 31 Balance at January 1 Unrecognized tax benefit SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves Concentration Risk Benchmark [Domain] Concentration Risk Benchmark Credit Concentration Risk [Member] Credit Concentration Risk Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period Award requisite service period Summary of significant accounting policies. Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Derivative Liability Derivative liabilities Derivative Liability, Total Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV Deferred Tax Assets, Leasing Arrangements Deferred Tax Assets Leasing Arrangements Lease liabilities Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract] Estimated Fair Value Increase decrease in accrued and refund liabilities. Increase Decrease In Accrued And Refund Liabilities Accrued and refund liabilities Share based compensation arrangement by share based payment award equity instruments other than options grant date fair value. Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grant Date Fair Value Restricted stock units, granted date fair value CHINA China Fair Value, Recurring [Member] Recurring Number of Reportable Segments Number of reportable segment Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Cumulative translation gain (loss) Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax, Beginning Balance Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax, Ending Balance Deferred Tax Assets, Net Net deferred tax assets Percentage of acquiring Beneficial ownership. Percentage of acquiring Beneficial ownership. US Treasury Securities [Member] US Treasury Securities U.S. Treasury Bills Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Period Increase (Decrease), Total Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Period Increase (Decrease) Increase in cap for shares Gain (Loss), Foreign Currency Transaction, before Tax Net losses resulting from foreign exchange transactions Foreign Currency Transaction Gain (Loss), before Tax, Total Net gain (losses) resulting from foreign exchange transactions Percentage of Option vest upon termination of interim CEO within six months from commencement of employment. Percentage of Option Vest Upon Termination of Interim CEO Within Six Months from Commencement of Employment Percentage of Option vest upon termination of interim CEO within six months from commencement of employment Schedule of Restructuring and Related Costs [Table] Adjustments to additional paid in capital issuance of common stock for services. Adjustments To Additional Paid In Capital Issuance Of Common Stock For Services Issuance of common stock for services Furniture and fixtures, servers and networking equipment. Furniture And Fixtures Servers And Networking Equipment [Member] Furniture and Fixtures, Servers, Networking Equipment Proceeds from Long-Term Lines of Credit Borrowings under credit facility Summary of Valuation Allowance [Table Text Block] Summary of Deferred Tax Asset Valuation Allowance Issuance of common stock upon exercise of options, Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Number of Options, Exercised Income tax reconciliation nondeductible expense warrant valuation. Income Tax Reconciliation Nondeductible Expense Warrant Valuation Non-deductible warrant valuation Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Due within one year Liabilities and Equity [Abstract] Liabilities and Stockholders’ Equity Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Operating lease, liability current, Statement of financial position [Extensible List] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Interactive Data Current Entity Interactive Data Current Selling and Marketing Expense Sales and marketing Selling and Marketing Expense, Total Shares withheld related to net share settlement value. Shares Withheld Related To Net Share Settlement Value Shares withheld related to net share settlement Temporary equity, stock issued during period, shares, conversion of convertible securities. Temporary Equity Stock Issued During Period Shares Conversion Of Convertible Securities Temporary equity, Conversion of redeemable convertible preferred stock into common stock upon IPO, Shares Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Accounts Payable, Total Credit Facility [Domain] Credit Facility Tax Benefits Preservation Plan Tax Benefits Preservation Plan [Member] Tax benefits preservation plan. Lessee, Operating Lease, Liability, Undiscounted Excess Amount Less: imputed interest Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Number of Restricted Stock Units, Granted Unvested share outstanding Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Number of vote per share. Number Of Vote Per Share Number of vote per share Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Weighted-Average Exercise Price, Exercised Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] Valuation Allowance of Deferred Tax Assets Derivatives, Fair Value [Line Items] Derivatives Fair Value [Line Items] Equity Components [Axis] Equity Components Summary of Income Tax Contingencies [Table Text Block] Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits Restructuring and Related Activities [Abstract] Increase (Decrease) in Other Operating Liabilities Other current and noncurrent liabilities Increase (Decrease) in Other Operating Liabilities, Total Deferred Tax Assets, Property, Plant and Equipment Fixed assets including right of use assets Financial Liabilities Fair Value Disclosure Total financial liabilities Payment service providers, two. Payment Service Providers Two [Member] PSP 2 Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value, Vested Local Phone Number Local Phone Number Property, Plant and Equipment [Line Items] Property Plant And Equipment [Line Items] Sale of Stock [Axis] Sale of Stock Designated as Hedging Instrument [Member] Designated Hedges Increase (Decrease) in Deferred Revenue Decrease in deferred revenue Current Federal Tax Expense (Benefit) Federal Common stock issued upon exercise of redeemable convertible preferred stock warrant. Common Stock Issued Upon Exercise Of Redeemable Convertible Preferred Stock Warrant Common stock issued upon exercise of redeemable convertible preferred stock warrant Statement of Cash Flows [Abstract] Comprehensive Income, Policy [Policy Text Block] Comprehensive Loss Income Tax Authority [Domain] Income Tax Authority Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Accumulated other comprehensive (loss) income Property, Plant and Equipment, Policy [Policy Text Block] Property and Equipment, Net Gross Profit Gross profit Marketplace [Member] Marketplace [Member] Marketplace Revenue Concentration Risk Benchmark [Axis] Concentration Risk Benchmark Document Annual Report Document Annual Report Common Stock, Par or Stated Value Per Share Common stock, par value Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Foreign currency effects on cash, cash equivalents, and restricted cash Foreign currency effects on cash, cash equivalents, and restricted cash Incentive plan approval date. Incentive Plan Approval Date Incentive plan approval date Interest and other income, net Interest Income (Expense), Nonoperating, Net Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Unrecognized compensation expenses, recognition period Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset Cash paid for amounts included in measurement of lease liabilities.. Cash Paid For Amounts Included In Measurement Of Lease Liabilities [Abstract] Cash paid for amounts included in the measurement of lease liabilities: Weighted-average remaining contractual term Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Shares reserve for issuance Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Maximum [Member] Maximum Share based compensation plan offering period. Share Based Compensation Plan Offering Period Share based compensation purchase plan offering period Cost of Goods and Service [Policy Text Block] Cost of Revenue Temporary Equity, Shares Outstanding Temporary Equity, Ending balance, Shares Temporary Equity, Beginning balance, Shares Temporary equity fair value per share. Temporary Equity Fair Value Per Share Redeemable convertible preferred stock fair value per share Fair Value, Inputs, Level 3 [Member] Level 3 APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition, Total Fair Value, Recurring and Nonrecurring [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Net decrease in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Internal Use Software, Policy [Policy Text Block] Software Development Costs Other Payments for (Proceeds from) Other Investing Activities Other Unrealized holding losses on derivatives and marketable securities, net of tax Other comprehensive income unrealized holding gain loss on derivatives and marketable securities arising during period net of tax. Other Comprehensive Income Unrealized Holding Gain Loss On Derivatives And Marketable Securities Arising During Period Net Of Tax General and Administrative General and Administrative Expense [Member] General and Administrative Expenses Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Number of Options, Forfeited or cancelled Document Financial Statement Error Correction [Flag] Exercise price per share Exercise Price Per Share Exercise price per share. Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Summary of Outstanding Shares of Potentially Dilutive Securities Excluded from Computation of Diluted Net Loss Per Share Share based compensation arrangement by share based payment award equity instruments other than options modified fair value. Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Modified Fair Value Performance stock units, modified fair value Segment Reporting Disclosure [Text Block] Geographical Information City Area Code City Area Code Deferred State and Local Income Tax Expense (Benefit) State Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities: Document Information [Line Items] Document Information [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding Aggregate intrinsic value of RSUs outstanding Common Stock, Voting Rights Common stock, voting rights description Customer [Domain] Customer General and Administrative Expense General and administrative General and Administrative Expense, Total Weighted Average Number of Shares Outstanding, Basic, Total Weighted Average Number of Shares Outstanding, Basic Weighted-average shares used in computing net loss per share, basic Schedule of Share-Based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block] Summary of Assumptions Used in Black-Scholes Option Pricing Model Increase decrease in lease liabilities. Increase Decrease In Lease Liabilities Lease liabilities Summary of Changes in Severance and Other Personnel Reduction Liabilities Included Accrued Liabilities Restructuring and Related Costs [Table Text Block] Employee Stock [Member] Employee Stock Purchase Plan Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows from financing activities: Other Countries. Other Countries [Member] Other Increase decrease in sales and indirect taxes. Increase Decrease In Sales And Indirect Taxes Decrease in sales and indirect taxes Statement [Table] Statement [Table] Banking Regulation, Mortgage Banking, Net Worth, Minimum Minimum liquidity financial covenant Document Fiscal Period Focus Document Fiscal Period Focus Lessee, Operating Lease, Liability, to be Paid Total lease payments Share based compensation arrangement by share based payment award options grant date fair value. ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantDateFairValue Options, Grant date Fair Value Revenue from Contract with Customer Benchmark [Member] Revenue Not Designated as Hedging Instrument [Member] Non-designated Hedges 2025 Lessee, Operating Lease, Liability, to be Paid, Year Two Statement [Line Items] Statement [Line Items] Stock issued during period, value upon exercise of redeemable convertible preferred stock warrant. Stock Issued During Period Value Upon Exercise Of Redeemable Convertible Preferred Stock Warrant Issuance of common stock upon exercise of redeemable convertible preferred stock warrant Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Anti-dilutive securities excluded from computation of earnings per share Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Balance at end of period Balance at beginning of period Increase (decrease) in vendor services. Increase Decrease In Vendor Services Decrease in vendor services Lease, Cost Total Subsequent Event [Line Items] Subsequent Event [Line Items] Warrant [Member] Warrant to Purchase Common Stock Entity Incorporation, Date of Incorporation Entity incorporation, date Asset Class [Domain] Asset Class Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of Deferred Tax Assets and Liabilities Customer [Axis] Customer Derivatives, Policy [Policy Text Block] Derivative Instruments Common Stock [Member] Common Stock Percentage of RSU vest upon termination of interim CEO within six months from commencement of employment. Percentage of RSU Vest Upon Termination of Interim CEO Within Six Months from Commencement of Employment Percentage of RSU vest upon termination of interim CEO within six months from commencement of employment Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value, Total Stock Repurchased During Period, Value Repurchase of common stock Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Summary of Stock-Based Compensation Expense Net (accretion) amortization of discounts and premiums on marketable securities Accretion (Amortization) of Discounts and Premiums, Investments Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Antidilutive Securities, Name [Domain] Antidilutive Securities, Name Accrued logistics costs current. Accrued Logistics Costs Current Logistics costs Income (Loss) from Continuing Operations before Income Taxes, Domestic Domestic Stock Issued During Period, Value, Conversion of Convertible Securities Conversion of redeemable convertible preferred stock into common stock upon IPO Stock issued during period shares net exercises of common stock warrant. Stock Issued During Period Shares Net Exercises Of Common Stock Warrant Net exercises of common stock warrant, Shares Senior secured debt. Senior Secured Debt [Member] Senior Secured Debt Cover Cover [Abstract] Derivative Asset, Statement of Financial Position [Extensible Enumeration] Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Current: Proceeds from sales of shares through employee equity incentive plans. Proceeds From Sales Of Shares Through Employee Equity Incentive Plans Proceeds from issuance of common stock through employee equity incentive plans Document Fiscal Year Focus Document Fiscal Year Focus Schedule of Total Severance and Other Personnel Reduction Costs Condensed Income Statement [Table Text Block] Sale of Stock [Domain] Sale of Stock Property and equipment net and operating lease right-of-use assets net percentage. Property and Equipment Net and Operating Lease Right-of-Use Assets Net Percentage Property and equipment, net and right-of-use assets percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted average grant date fair value, granted Weighted-Average Grant Date Fair Value, Granted Segment Reporting [Abstract] Sales and Excise Tax Payable, Current Sales and indirect taxes Asset purchase price consideration Proceeds from Sale of Productive Assets Proceeds from Sale of Productive Assets, Total Security Exchange Name Security Exchange Name Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Award, expiration period Term of option award Domestic Tax Authority [Member] Federal Other comprehensive loss Other comprehensive loss, net Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other comprehensive income, net New Accounting Pronouncements, Policy [Policy Text Block] Accounting Pronouncements Preferred Stock, Shares Issued Preferred stock, shares issued Preferred Stock, Shares Authorized Preferred stock, shares authorized Current State and Local Tax Expense (Benefit) State Current state tax benefit Current state tax benefit Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Right-of-use assets obtained in exchange for new lease liabilities Hedging Designation [Domain] Hedging Designation SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Deductions Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Weighted-Average Exercise Price, Forfeited or cancelled Weighted Average Number of Shares Outstanding, Diluted [Abstract] Denominator: Stock based compensation expense reversal amount. Stock Based Compensation Expense Reversal Amount Stock-based compensation expense reversal amount Issuance of common stock upon exercise of options Stock Issued During Period, Value, Stock Options Exercised Entity Emerging Growth Company Entity Emerging Growth Company Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Aggregate intrinsic value of options exercised Amendment Flag Amendment Flag Schedule of Accrued Liabilities [Table Text Block] Schedule of Accrued Liabilities Marketable Securities, Current Marketable securities Funds receivable. Funds Receivable [Member] Funds Receivable IPO [Member] IPO Deferred Tax Liabilities, Gross [Abstract] Deferred tax liabilities: Restructuring Costs Restructuring and Related Activities Disclosure [Text Block] Payments to Acquire Debt Securities, Available-for-Sale Purchases of marketable securities Leases [Abstract] Variable Rate [Domain] Variable Rate Tax Period [Domain] Tax Period Entity File Number Entity File Number Preferred Stock, Convertible, Terms Convertible preferred stock, terms of conversion description Deferred Tax Assets, Gross Total gross deferred tax assets Unrestricted cash, cash equivalents, and marketable securities Unrestricted Cash, Cash Equivalents, And Marketable Securities Unrestricted cash, cash equivalents, and marketable securities. Preferred Stock Purchase Rights Preferred Stock Purchase Rights [Member] Preferred stock purchase rights. Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Total Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Cash, cash equivalents and restricted cash at beginning of period Cash, cash equivalents and restricted cash at end of period Cash, cash equivalents and restricted cash at end of period Balance Sheet Related Disclosures [Abstract] Income taxes. Income Taxes [Line Items] Income Taxes [Line Items] Share-Based Payment Arrangement [Abstract] Payment service providers, one. Payment Service Providers One [Member] PSP 1 Impairments of lease assets and property and equipment. Impairments Of Lease Assets And Property And Equipment Impairments of lease assets and property and equipment Accounts Payable, Current Accounts payable Accounts Payable, Current, Total Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value, Beginning balance Weighted-Average Grant Date Fair Value, Ending balance Deferred Tax Assets, Valuation Allowance Less: valuation allowance Operating Expenses Total operating expenses Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Schedule of PSPs Each Represented 10% or More of Funds Receivable Balance Number of authorized common stock classes. Number Of Authorized Common Stock Classes Number of authorized common stock classes Auditor Location Auditor Location Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Expected term Expected term (in years) Reverse stock split Stockholders' Equity, Reverse Stock Split Merchants payable. Merchants Payable Policy [Text Block] Merchants Payable Preferred stock, $0.0001 par value: 100,000 shares authorized as of December 31, 2023 and December 31, 2022; No shares issued and outstanding as of December 31, 2023 and December 31, 2022 Preferred Stock, Value, Issued Entity Small Business Entity Small Business Entity Shell Company Entity Shell Company Number of Operating Segments Number of operating segment Title of Individual [Axis] Title of Individual Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Commitment fee percentage on unused portion of aggregate commitments Class of Warrant or Right, Exercise Price of Warrants or Rights Warrants exrcise price Class of Warrant or Right [Domain] Class of Warrant or Right Certificates of Deposit [Member] Certificates of Deposit Share based compensation discount subject to caps. Share Based Compensation Discount Subject To Caps Maximum eligible compensation to purchase shares at discount Earnings Per Share [Text Block] Net Loss Per Share Long-Lived Assets by Geographic Areas [Table Text Block] Summary of Property and Equipment, Net and Operating Lease Right-of-Use Assets, Net Commercial Paper [Member] Commercial Paper Entity Address, Address Line One Entity Address, Address Line One Cash and Cash Equivalents, Fair Value Disclosure Cash equivalents Antidilutive Securities [Axis] Antidilutive Securities Restricted cash Restricted Cash Restricted Cash, Total Line of Credit Facility, Commitment Fee Percentage Commitment fee percentage Additional stock based compensation expense. Additional Stock Based Compensation Expense Additional stock based compensation expense Subsequent Event Type [Domain] Subsequent Event Type Income Statement Location [Axis] Income Statement Location Variable Lease, Cost Variable costs Share based compensation common stock shares outstanding percentage. Share Based Compensation Common Stock Shares Outstanding Percentage Common stock shares outstanding percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Dividend yield Long-Term Debt, Type [Axis] Long-term Debt, Type Lessee, Operating Lease, Liability, to be Paid, Year Five 2027 Long-Term Purchase Commitment, Amount Purchase commitment amount Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 Level 2 Restricted stock units and stock options. Restricted Stock Units and Stock Options [Member] Restricted Stock Units (RSUs) and Stock Options Depreciation, Depletion and Amortization Depreciation and amortization Depreciation, Depletion and Amortization, Total Product and Service [Axis] Product and Service Title of 12(b) Security Title of 12(b) Security Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount State tax (benefit), net of federal benefit Temporary Equity, Carrying Amount, Attributable to Parent Temporary Equity, Ending balance Temporary Equity, Beginning balance Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Employee Subscription Rate Percentage of eligible compensation to purchase shares at discount Property, plant and equipment, estimated useful lives. Property Plant And Equipment Estimated Useful Lives Table [Text Block] Estimated Useful Lives of Property and Equipment Tax Period begin to expire in 2026 through 2043 Tax Period Begin To Expire In Two Thousand Twenty Six Through Two Thousand Forty Three [Member] Tax period begin to expire in two thousand twenty six through two thousand forty three. Prepaid Expenses and Other Current Assets [Member] Prepaid and Other Current Assets Purchase Commitment, Remaining Minimum Amount Committed Purchase obligations, remaining commitment Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: Income taxes. Income Taxes [Table] Income Taxes [Table] State and Local Jurisdiction [Member] State Segment Reporting, Policy [Policy Text Block] Segments Stock Issued During Period Cashless Shares Stock Options Exercised Stock Issued During Period Cashless Shares Stock Options Exercised Issuance of common stock upon cashless exercise of options,Shares Concentration Risk [Table] Concentration Risk [Table] Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset Subsequent Event [Table] Subsequent Event [Table] Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Cash, Cash Equivalents and Restricted Cash Underwriting discounts and commissions. Underwriting Discounts And Commissions Underwriting discounts and commissions Other Operating Activities, Cash Flow Statement Other Series B warrant. Series B Warrant [Member] Series B Warrant Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Due after one year through five years Stock repurchased during period, shares redeemable convertible preferred stock. Stock Repurchased During Period Shares Redeemable Convertible Preferred Stock Stock Repurchased During Period, Value Redeemable Convertible Preferred Stock, Shares ProductBoost. Product Boost [Member] ProductBoost Revenue Common Stock, Shares, Outstanding Ending balance, Shares Beginning balance, Shares Common stock, shares outstanding Percentage of decrease in sales and indirect taxes due to less taxes collected in connection with lower order volumes. Percentage Of Decrease In Sales And Indirect Taxes Due To Less Taxes Collected In Connection With Lower Order Volumes Percentage of decrease in sales and indirect taxes due to less taxes collected in connection with lower order volumes Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Risk-free rate Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value, Forfeited or cancelled SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Additions Supplemental Cash Flow Elements [Abstract] Supplemental cash flow disclosures: Number of putative class action lawsuits, Number Of Putative Class Action Lawsuits Number of putative class action lawsuits Share-Based Compensation Arrangement by Share-Based Payment Award, Discount from Market Price, Purchase Date Percentage of price per share Concentration Risk Type [Domain] Concentration Risk Type Income Statement Location [Domain] Income Statement Location Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Weighted-Average Exercise Price, Granted Customer Refund Liability, Current Refunds liability Document Type Document Type Stock Issued During Period, Shares, Conversion of Convertible Securities Conversion of redeemable convertible preferred stock into common stock upon IPO, Shares Increase decrease in logistics costs. Increase Decrease In Logistics Costs Decrease in logistics costs Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Line of credit facility, standby letter of credit. Line Of Credit Facility Standby Letter Of Credit Standby letter of credit Marketable Securities, Noncurrent Marketable securities Warrants and Rights Outstanding Warrant to purchase shares of common stock Other Director or Officer Other Director or Officer [Member] Other director or officer. Tax period begin to expire in two thousand twenty six through two thousand forty two. Tax Period Begin To Expire In Two Thousand Twenty Six Through Two Thousand Forty Two [Member] Tax Period begin to expire in 2026 through 2042 Derivative, Notional Amount Total gross notional amounts of outstanding derivatives Net Income (Loss) Available to Common Stockholders, Basic Net loss attributable to common stockholders Deferred Tax Liabilities, Other Other Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Number of Restricted Stock Units, Forfeited or cancelled Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Tax period begin to expire in two thousand thirty through two thousand thirty seven. Tax Period Begin To Expire In Two Thousand Thirty Through Two Thousand Thirty Seven [Member] Tax Period begin to expire in 2030 through 2037 Entity Filer Category Entity Filer Category Share based compensation arrangement by share based payment award equity instruments other than options exercisable. Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Exercisable Number of Restricted Stock Units, Exercised Balance Sheet Location [Domain] Balance Sheet Location Operating Lease, Impairment Loss Impairment of operating lease ROU assets Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Components of Loss Before Provision for Income Taxes Geographic Concentration Risk [Member] Geographic Concentration Risk Variable Rate [Axis] Variable Rate Accrued Liabilities, Current [Abstract] Asset Class [Axis] Asset Class Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Amounts recognized in core marketplace revenue and reclassified out of accumulated other comprehensive income Liabilities Total liabilities Property, Plant and Equipment [Table] Schedule Of Property Plant And Equipment [Table] Computers, equipment and software. Computers Equipment And Software [Member] Computers, Equipment, Software Asset Impairment Charges, Total Asset Impairment Charges Impairment of lease assets and property and equipment Equity, Attributable to Parent Ending balance Beginning balance Total stockholders’ equity Balance sheet components. Balance Sheet Components [Text Block] Balance Sheet Components Documents Incorporated by Reference [Text Block] Documents Incorporated by Reference Net loss Net loss Other income, net: Nonoperating Income (Expense) [Abstract] Business Description and Basis of Presentation [Text Block] Description of Business Proceeds from Issuance Initial Public Offering Proceeds from initial public offering, net of underwriting discounts and commissions Net proceeds from Issuance of stock Corporate Debt Securities [Member] Corporate Bonds Fair Value Measurement, Policy [Policy Text Block] Fair Value Measurement Statement of Financial Position [Abstract] Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Due after one year through five years Convertible preferred stock shares issued upon conversion, percentage. Convertible Preferred Stock Shares Issued Upon Conversion Percentage Convertible preferred stock, conversion percentage Funds receivable. Funds Receivable Policy [Text Block] Funds Receivable Derivative Liability, Statement of Financial Position [Extensible Enumeration] Weighted Average Number of Shares Outstanding, Diluted, Total Weighted Average Number of Shares Outstanding, Diluted Weighted-average shares used in computing net loss per share, diluted Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Reconciliation of Income Taxes Computed at Statutory Federal Income Tax Rate and Provision for Income Taxes Credit Facility [Axis] Credit Facility Deferred Federal Income Tax Expense (Benefit) Federal Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals Reserves and accruals not currently deductible Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Total deferred tax asset for reserves and accruals Debt Securities, Available-for-Sale, Amortized Cost Total marketable securities Operating Lease, Weighted Average Remaining Lease Term Weighted-average remaining lease term Use of Estimates, Policy [Policy Text Block] Use of Estimates Income Tax Disclosure [Text Block] Income Taxes Deferred revenue and customer deposits current. Deferred Revenue And Customer Deposits Current Deferred revenue and customer deposits Long-Term Purchase Commitment, Period Purchase commitment, period Derivative Asset Derivative assets Derivative Asset, Total Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Weighted-Average Exercise Price, Ending balance Weighted-Average Exercise Price, Beginning balance SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] Valuation And Qualifying Accounts Disclosure [Line Items] Debt Security, Government, Non-US [Member] Debt Security, Government, Non-US Non-U.S. government Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Computation of Basic and Diluted Net Loss Per Share Gain (Loss) on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net Net gains or losses recognized in core marketplace revenue Gain (Loss) on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net, Total Disaggregation of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Leasehold Improvements [Member] Leasehold Improvements Income Tax Authority [Axis] Income Tax Authority Unredeemable cash balances in core marketplace revenue. Unredeemable Cash Balances In Core Marketplace Revenue Unredeemable wish cash balances in core marketplace revenue Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Fair Value Disclosures [Abstract] Current Income Tax Expense (Benefit) Total current Total current Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV Measurement Frequency [Domain] Measurement Frequency Hedging Designation [Axis] Hedging Designation Increase decrease in funds receivable. Increase Decrease In Funds Receivable Funds receivable Funds receivable Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment and development of internal-use software Payments to Acquire Property, Plant, and Equipment, Total Redeemable Convertible Preferred Stock [Member] Redeemable Convertible Preferred Stock Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Shares vested Number of Restricted Stock Units, Vested Stock Issued During Period, Shares, New Issues Issuance of common stock upon IPO, net of issuance costs, Shares Cost of Revenue [Member] Cost Of Revenue [Member] Cost of Revenue Class of Warrant or Right [Axis] Class of Warrant or Right Income Tax Disclosure [Abstract] North America [Member] North America Fair value measurement with unobservable inputs reconciliation recurring basis remeasurement of redeemable convertible preferred stock warrant liability. Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Remeasurement Of Redeemable Convertible Preferred Stock Warrant Liability Remeasurement of redeemable convertible preferred stock warrant liability Cash Flow Hedging [Member] Cash Flow Hedges Funds receivable. Funds Receivable Funds receivable Operating Loss Carryforwards Net operating loss carryforwards Percentage of cash and cash equivalents held. Percentage Of Cash And Cash Equivalents Held Percentage of cash and cash equivalents