Business Acquisition [Axis] Business Acquisition [Axis] Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items] Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Total lease payments Lessee, Operating Lease, Liability, to be Paid Net loss Net loss Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Related Party Transactions [Abstract] Related Party Transactions [Abstract] Provision for doubtful accounts Accounts Receivable, Credit Loss Expense (Reversal) Net loss per Class A, Class B and Class C common share: Earning Per Share, Basic and Diluted [Abstract] N/a. Principal outstanding Long-Term Debt, Gross Entity Address, Postal Zip Code Entity Address, Postal Zip Code Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Number of consecutive trading days Debt Instrument, Convertible, Threshold Consecutive Trading Days Finite-Lived Intangible Assets, Net, Amortization Expense, Rolling Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Rolling Maturity [Abstract] Property and equipment, gross Property, Plant and Equipment, Gross Net (loss) income attributable to noncontrolling interests Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest Related party transaction expenses from transactions with related party Related Party Transaction, Expenses from Transactions with Related Party Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Deferred revenue Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue Prepaid and other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Additional paid-in capital Additional Paid in Capital Number of plaintiffs Loss Contingency, Number of Plaintiffs Statistical Measurement [Domain] Statistical Measurement [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Depreciation Depreciation Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Schedule of Supplemental Cash Flow Information and Additional Information Lessee, Supplemental Cash Flow Information and Additional Information [Table Text Block] Tabular disclosure of other information relating to leases. Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Interest rate Debt Instrument, Interest Rate, Stated Percentage C Acquisition C Acquisition This member stands for Millennial and Gen Z consumers. Stock Issued During Period, Value, Conversion of Convertible Securities Stock Issued During Period, Value, Conversion of Convertible Securities Schedule of fair value of consideration exchanged Schedule of Business Acquisitions, by Acquisition [Table Text Block] Effect of currency translation on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Net loss attributable to BuzzFeed, Inc. Net Income (Loss) Attributable to Parent Measurement Input Type [Domain] Measurement Input Type [Domain] Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Shares excluded from the computation of diluted loss per share, as their effect would be anti-dilutive (in shares) Diluted net loss per share, as their effect would be anti-dilutive (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Contingent Consideration by Type [Axis] Contingent Consideration by Type [Axis] Cumulative Effect, Period of Adoption [Axis] Cumulative Effect, Period of Adoption [Axis] Document Information [Line Items] Document Information [Line Items] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Equity Component [Domain] Equity Component [Domain] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Unsecured convertible notes due 2026 Unsecured Convertible Notes, Due 2026 [Member] Represents information pertaining to the unsecured Convertible Notes, Due 2026 [Member] Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Ownership [Axis] Ownership [Axis] 2024 Lessee, Operating Sublease Income, Receivable, Year One Amount of sublease income receivable in first fiscal year. Fixed monthly rent for sublease Sublease, Fixed Monthly Rent Represents the fixed monthly rent for sublease. Leases Lessee, Operating Leases [Text Block] Capitalized computer software, amortization Capitalized Computer Software, Amortization Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration] Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration] Standby letters of credit Standby Letters of Credit [Member] Stock issued price per share (in dollars per share) Business Acquisition, Share Price Forfeited (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Number of operating segments Number of Operating Segments Noncontrolling Interest [Abstract] Noncontrolling Interest [Abstract] Capitalization of internal-use software Payments to Acquire Software Unrecognized compensation costs Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Remainder of 2023 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] NBCUniversal Media, LLC NBCUniversal Media, LLC Represents the information pertaining to NBCUniversal Media, LLC . Letter of credit outstanding Long-Term Line of Credit Entity Address, State or Province Entity Address, State or Province Level 1 Fair Value, Inputs, Level 1 [Member] Other comprehensive loss Other Comprehensive Income (Loss), Net of Tax [Abstract] Weighted Average Remaining Term (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Other non-current liabilities: Nonfinancial Liabilities Fair Value Disclosure [Abstract] Award Type [Axis] Award Type [Axis] Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Cash (used in) provided by operating activities Cash (used in) provided by operating activities Net Cash Provided by (Used in) Operating Activities Conversion of Class B common stock to Class A common stock (in shares) Stock Issued During Period, Shares, Conversion of Class B Common Stock To Class A Common Stock Conversion of Class B common stock to Class A common stock Stock Issued During Period, Shares, Conversion of Class B Common Stock To Class A Common Stock Conversion of Class B common stock to Class A common stock Current lease liabilities Operating Lease, Liability, Current Expired (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period Debt instrument, covenants, liquidity threshold Debt Instrument, Covenants, Liquidity Threshold Debt Instrument, Covenants, Liquidity Threshold Related Party Transaction [Domain] Related Party Transaction [Domain] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Restructuring and Related Cost, Expected Cost Restructuring and Related Cost, Expected Cost Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Accounts receivable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Property and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Legal Entity [Axis] Legal Entity [Axis] Accrued expenses Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Accounts Payables Amount of business combination recognized identifiable assets acquired and liabilities assumed accrued expenses Debt Outstanding borrowings Long-Term Debt, Excluding Current Maturities Total liabilities Liabilities Weighted average remaining lease term (years) Operating Lease, Weighted Average Remaining Lease Term Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Geographical [Axis] Geographical [Axis] Investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Film costs, production tax credit, receivable Film Costs, Production Tax Credit, Receivable Film Costs, Production Tax Credit, Receivable Percentage of membership interests acquired Business Acquisition, Percentage of Voting Interests Acquired Cash Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Acquired Technology Technology-Based Intangible Assets [Member] Accrued expenses, other current liabilities and other liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Operating Leased Assets [Line Items] Operating Leased Assets [Line Items] Expected to vest Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested Derivative liability Derivative Liability, Current Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and 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Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Debt Debt Disclosure [Text Block] Product and Service [Domain] Product and Service [Domain] Entity Shell Company Entity Shell Company Class B Common Stock Common Class B [Member] Deferred income tax Deferred Income Tax Expense (Benefit) 2024 Lessee, Operating Lease, Liability, to be Paid, Year One Number of shares issued for acquisition (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Non-cash lease expense Noncash Lease Expense Amount of noncash lease expense Developed technology Developed Technology Rights [Member] Subsequent Event Subsequent Event [Member] Document Period End Date Document Period End Date Video equipment Video equipment Represents the member information pertaining to video equipment. Class C Common Stock Common Class C [Member] Early termination fee, percentage Revolving Credit Facility, Early Termination Fee, Percentage Revolving Credit Facility, Early Termination Fee, Percentage Total assets Assets Debt Disclosure [Abstract] Debt Disclosure [Abstract] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Income Statement Location [Axis] Income Statement Location [Axis] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Accrued expenses Accrued Liabilities, Current Thereafter Lessee, Operating Sublease Income, Receivable, After Year Four Amount of sublease income receivable in fifth fiscal year. Numerator: Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Asset Fair Value Finite-Lived Intangible Assets Acquired Supplemental Disclosures Supplemental Disclosures [Text Block] Information relating to supplemental disclosures. Cash used in financing activities Net Cash Provided by (Used in) Financing Activities Accounting Policies [Abstract] Accounting Policies [Abstract] Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Interest expense Interest Expense, Debt Unused borrowing capacity Debt Instrument, Unused Borrowing Capacity, Amount Accrued compensation Employee-related Liabilities, Current Goodwill Business Combination Goodwill Adjustment Business Combination Goodwill Adjustment Loss before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Stockholders’ equity Stockholders' Equity Attributable to Parent [Abstract] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Cumulative Effect, Period of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] Amortization of debt discount and issuance costs Amortization of Debt Issuance Costs and Discounts Net Loss Per Share Earnings Per Share [Text Block] Redeemable Noncontrolling Interest Noncontrolling Interest Disclosure [Text Block] Summary of Stock-Based Compensation Expense Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block] Schedule of Film Costs Schedule of Film Capitalized Cost [Table Text Block] Tabular disclosure of the capitalized film costs. Lease liabilities Increase (Decrease) in Operating Lease Liability Comprehensive loss Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Related Party Transaction [Line Items] Related Party Transaction [Line Items] Schedule of Provision (Benefit) for Income Taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Award Type [Domain] Award Type [Domain] Weighted-average remaining requisite service period Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Exercisable (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Computer equipment Computer Equipment [Member] Cash consideration Payments to Acquire Businesses, Gross Schedule of company's financial assets and liabilities that are measured at fair value on a recurring basis Fair Value, by Balance Sheet Grouping [Table Text Block] Entity Registrant Name Entity Registrant Name Summary of Intangible Assets and the Weighted Average Remaining Useful Lives Schedule Of Finite Lived And Indefinite Lived Intangible Assets By Major Class [Table Text Block] Tabular disclosure of amortizable finite-lived intangible assets, in total and by major class, including the gross carrying amount and accumulated amortization, and indefinite-lived intangible assets not subject to amortization, excluding goodwill, in total and by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. Subsequent Events Subsequent Events [Text Block] Schedule of Capitalized Software Costs Schedule of Capitalized Software [Table Text Block] Tabular disclosure of capitalized software. Customer relationships Customer Relationships [Member] Entity Address, City or Town Entity Address, City or Town Minimum monthly average utilization of debt Minimum Monthly Average Utilization of Debt The amount of minimum monthly average utilization of debt. Leases [Abstract] Leases [Abstract] Redeemable warrants, each whole warrant exercisable for one share of Class A Common Stock at an exercise price of $11.50 per share Redeemable warrants, each whole warrant exercisable for one share of Class A Common Stock at an exercise price of $11.50 per share Represent redeemable warrants each whole warrant exercisable for one share of class A common stock member. Term (in years) Measurement Input, Expected Term [Member] Total stockholders’ equity Balance at beginning Balance at end Accumulated deficit Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Basis of Financial Statements and Principles of Consolidation Consolidation, Policy [Policy Text Block] Minimum Minimum [Member] Accounting Pronouncements Not Yet Adopted Accounting Pronouncements Not Yet Adopted [Policy Text Block] Disclosure of accounting policy for accounting pronouncements not yet adopted. Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Entity Emerging Growth Company Entity Emerging Growth Company Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Buzzfeed Buzzfeed [Member] Buzzfeed 2026 Lessee, Operating Sublease Income, Receivable, Year Three Amount of sublease income receivable in third fiscal year. Maximum amount of new guarantee under lease agreement Maximum Amount of New Guarantee Under Lease Agreement Represents the maximum amount of new guarantee under lease agreement. Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Debt issuance cost Debt Issuance Costs, Net Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Trading Symbol Trading Symbol Entity File Number Entity File Number Convertible notes Convertible Debt Securities [Member] Capitalized Software Costs, net Intangible Assets, net Intangible Assets Disclosure [Text Block] 2027 Finite-Lived Intangible Asset, Expected Amortization, Year Four Measurement Period Adjustments Measurement Period Adjustments This member stands for measurement period adjustments. Research and development Research and Development Expense Comprehensive (loss) income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Restricted stock units Restricted Stock Units (RSUs) [Member] Effective tax rate Effective Income Tax Rate Reconciliation, Percent Verizon Ventures LLC Verizon Ventures LLC [Member] Verizon Ventures LLC Issuance of letter of credit Issuance of letter of credit Proceeds from Lines of Credit CM Partners, LLC CM Partners, LLC Represents information pertaining to CM Partners, LLC. Risk-free rate Measurement Input, Risk Free Interest Rate [Member] Expected to vest (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Use of Estimates Use of Estimates, Policy [Policy Text Block] Cash equivalents: Cash and Cash Equivalents, Fair Value Disclosure Acquisitions and Dispositions Business Combination Disclosure [Text Block] Outstanding payable Due to Related Parties, Noncurrent Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Subsequent Events [Abstract] Subsequent Events [Abstract] Preliminary Preliminary This member stands for preliminary. Income Taxes Income Tax Disclosure [Text Block] Debt instrument floor rate Debt Instrument Floor Rate 1 Represents the debt instrument floor rate. Outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding Description of the Business [Line Items] Description Of The Business [Line Items] Description Of The Business Credit Facility [Domain] Credit Facility [Domain] Depreciation and amortization expense associated with intangible assets Amortization of Intangible Assets Gross Carrying Value Intangible Assets, Gross (Excluding Goodwill) Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Exercise price per share (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Basic (in dollars per share) Net loss per common share, basic (in dollars per share) Earnings Per Share, Basic 2026 Lessee, Operating Lease, Liability, to be Paid, Year Three Operating cash flows for operating lease liabilities Operating Lease, Payments, Use Accounts payable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Sales and marketing Selling and Marketing Expense Indefinite-Lived Intangible Assets [Axis] Indefinite-Lived Intangible Assets [Axis] Total BuzzFeed, Inc. stockholders’ equity Stockholders' Equity Attributable to Parent Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Ownership [Domain] Ownership [Domain] Entity Interactive Data Current Entity Interactive Data Current Less: Accumulated amortization Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Prepaid Expenses and Other Current Assets Prepaid Expenses and Other Current Assets [Member] Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Three Schedule of activity of the Level 3 instruments Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Money Market Funds Money Market Funds [Member] Accumulated deficit Retained Earnings [Member] 2025 Lessee, Operating Sublease Income, Receivable, Year Two Amount of sublease income receivable in second fiscal year. Total lease cost Lease, Cost Common Stock Common Stock [Member] Schedule of Sublease Receipts to be Received in the Future Lessee, Operating Sublease Income [Table Text Block] Tabular disclosure of sublease income. Number of reportable segments Number of Reportable Segments Schedule of Lease Costs Lease, Cost [Table Text Block] Class of Stock [Axis] Class of Stock [Axis] Statement [Table] Statement [Table] Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Repurchase price as percentage of par plus accrued and unpaid interest Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Document Quarterly Report Document Quarterly Report Letter of Credit Letter of Credit [Member] Furniture and fixtures Furniture and Fixtures [Member] Current assets Assets, Current [Abstract] Noncurrent lease liabilities Operating Lease, Liability, Noncurrent Supplemental Disclosures Supplemental Disclosures [Abstract] No definition available. Schedule of quantitative information regarding the significant unobservable inputs used by the Company related to the derivative liability Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Accounts payable and accrued expenses related to property and equipment Noncash Accounts Payable And Accrued Expenses Related To Property And Equipment Amount of noncash accounts payable and accrued expenses related to property and equipment. Statistical Measurement [Axis] Statistical Measurement [Axis] Term for calculating amount of interest on the aggregate principal amount Term For Calculating Amount Of Interest On Aggregate Principal Amount Represents the term for calculating amount of interest on the aggregate principal amount. Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Foreign currency translation adjustment attributable to noncontrolling interests Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest Indefinite-lived intangible assets Indefinite-Lived Intangible Assets (Excluding Goodwill) Related Party Transaction [Axis] Related Party Transaction [Axis] Leasehold improvements Leasehold Improvements [Member] Change in fair value of derivative liability Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease) Accumulated deficit Retained Earnings (Accumulated Deficit) Accounts receivable (net of allowance for doubtful accounts of $2,229 as at March 31, 2023 and $1,879 as at December 31, 2022) Accounts Receivable, after Allowance for Credit Loss, Current Fair value of the notes Convertible Debt, Fair Value Disclosures Equity Components [Axis] Equity Components [Axis] Fair Value, Recurring Fair Value, Recurring [Member] Cash paid for amounts included in measurement of lease liabilities: Cash Paid for Amounts Included in Measurement of Lease Liabilities [Abstract] No definition available. Exercisable (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Related Party Transactions Related Party Transactions Disclosure [Text Block] Document Fiscal Year Focus Document Fiscal Year Focus Cost of revenue, excluding depreciation and amortization Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization Operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Statement [Line Items] Statement [Line Items] Redeemable Noncontrolling Interest [Roll Forward] Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Description of the Business [Table] Description Of The Business [Table] Description of the Business Outstanding at the beginning (in shares) Outstanding at the end (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Variable Rate [Domain] Variable Rate [Domain] Website and internal-use software Finite-Lived Intangible Assets, Gross Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Total consideration for Complex Networks Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest Right-of-use assets Operating Lease, Right-of-Use Asset International International [Member] Represents the information pertaining to International. Accumulated other comprehensive loss AOCI Attributable to Parent [Member] Expected to vest (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Document Transition Report Document Transition Report Local Phone Number Local Phone Number Schedule of Stock Options Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Loss from operations Operating Income (Loss) Recently Adopted Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Shares convertible (in shares) Debt Conversion, Converted Instrument, Shares Issued Carrying value of the investment in equity securities without a readily determinable fair value Equity Securities without Readily Determinable Fair Value, Amount Prepaid expenses and other current assets and prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Document Information [Table] Document Information [Table] Common stock, shares outstanding (in shares) Balance at beginning (in shares) Balance at end (in shares) Common Stock, Shares, Outstanding Goodwill Identifiable intangible assets acquired of goodwill Goodwill Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Total Liabilities, Fair Value Disclosure Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Adjustments to reconcile net loss to net cash (used in) provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Income tax provision Income Tax Expense (Benefit) Geographical [Domain] Geographical [Domain] Schedule of RSU Activity Summary of Restricted Stock Unit Activity [Table Text Block] The tabular disclosure of summary of restricted stock units. Preferred stock, par value per share (in dollars per share) Preferred Stock, Par or Stated Value Per Share 2027 Lessee, Operating Lease, Liability, to be Paid, Year Four Proceeds from sale of asset Proceeds from Sales of Assets, Investing Activities Income Statement [Abstract] Income Statement [Abstract] Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Additional paid-in capital Additional Paid-in Capital [Member] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Document Fiscal Period Focus Document Fiscal Period Focus Diluted (in shares) Weighted average common shares outstanding, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Less: Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Derivative liability Derivative Liability, Subject to Master Netting Arrangement, before Offset Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Common stock Common Stock, Value, Issued Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Initial conversion price (in dollars per share) Debt Instrument, Convertible, Conversion Price Summary of Shares Excluded from the Computation of Diluted Loss Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Convertible Notes Convertible Debt [Member] C Acquisition Purchase Agreement C Acquisition Purchase Agreement [Member] This member stands for C Acquisition Purchase Agreement. Liabilities: Financial Liabilities Fair Value Disclosure [Abstract] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Net (loss) income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Current liabilities Liabilities, Current [Abstract] Net loss attributable to holders of Class A, Class B, and Class C common stock Net Income (Loss) Available to Common Stockholders, Basic Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Commerce and other Commerce And Other [Member] Represents the member information pertaining to commerce and other. Proceeds from exercise of stock options Proceeds from Stock Options Exercised Common stock, shares issued (in shares) Common Stock, Shares, Issued Vested and expected to vest (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Other non-current liabilities Other Liabilities, Fair Value Disclosure Deferred revenue Contract with Customer, Liability, Current Total BuzzFeed, Inc. stockholders’ equity Parent [Member] Warrant liabilities Warrants and Rights Outstanding Income Statement Location [Domain] Income Statement Location [Domain] Amendment Flag Amendment Flag Weighted- Average Remaining Useful Lives (in years) Finite-Lived Intangible Asset, Useful Life Cash used in investing activities Net Cash Provided by (Used in) Investing Activities Operating lease cost Operating Lease, Cost Aggregate principal amount Debt Instrument, Face Amount Other comprehensive loss Other comprehensive loss Other Comprehensive Income (Loss), Net of Tax Comprehensive loss attributable to BuzzFeed, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Term for calculating amount of interest declining ratably Term For Calculating Amount Of Interest Declining Ratably Represents the term for calculating amount of interest declining ratably. Comprehensive income attributable to the redeemable noncontrolling interest Comprehensive Income (Loss), Net of Tax, Attributable To Redeemable Noncontrolling Interest Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to redeemable noncontrolling interests. Entity Current Reporting Status Entity Current Reporting Status Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Other current liabilities Other Liabilities, Current Deferred tax liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Accrued compensation Increase (Decrease) in Employee Related Liabilities Weighted Average Remaining Term Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract] Exercisable (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Depreciation and amortization Depreciation, Depletion and Amortization Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] U.S. federal statutory income tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Costs and Expenses Operating Costs and Expenses [Abstract] 2027 Lessee, Operating Sublease Income, Receivable, Year Four Amount of sublease income receivable in fourth fiscal year. Schedule of purchase price allocation for the assets acquired and liabilities assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Outstanding at the beginning (in shares) Outstanding at the end (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Unamortized debt discount and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Thereafter Finite-Lived Intangible Asset, Expected Amortization, After Year Four Finite-Lived Intangible Asset, Expected Amortization, After Year Four Private Warrants Private Warrants Amount Of Private Warrants Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Liabilities Liabilities [Abstract] Property and equipment, net Net Carrying Value Property, Plant and Equipment, Net Debt Conversion Terms One Debt Conversion Terms One [Member] Debt Conversion Terms One Schedule of Estimated Future Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Schedule of estimated fair value of each of the identifiable intangible assets Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Sales and marketing Selling and Marketing Expense [Member] Stock options Share-Based Payment Arrangement, Option [Member] Percentage of qualifying non-investment grade accounts receivable Percentage of Qualifying Non-Investment Grade Accounts Receivable Represents the percentage of non-qualifying investment grade accounts receivable. Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Net carrying value Long-Term Debt Other income, net Other Nonoperating Income (Expense) Balance Sheet Location [Axis] Balance Sheet Location [Axis] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Percentage of fee on unused commitments Percentage of Fee on Unutilized Commitments The percentage of fee on unutilized commitments. Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Maximum Maximum [Member] Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Accounts payable Increase (Decrease) in Accounts Payable, Trade Prepaid expenses and other assets Prepaid Expense and Other Assets, Noncurrent Class A Common Stock, $0.0001 par value per share Class A Common Stock Common Class A [Member] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Deferred revenue Increase (Decrease) in Contract with Customer, Liability Conversion of Class C common stock to Class A common stock (in shares) Stock Issued During Period, Shares, Conversion Of Class C Common Stock To Class A Common Stock Stock Issued During Period, Shares, Conversion Of Class C Common Stock To Class A Common Stock Total current assets Assets, Current Cash paid for income taxes, net Income Taxes Paid, Net Revenue recognized Contract with Customer, Liability, Revenue Recognized Business Acquisition [Line Items] Business Acquisition [Line Items] Entity Small Business Entity Small Business Measurement Frequency [Domain] Measurement Frequency [Domain] Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Issuance of common stock in connection with share-based plans (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Total Finite-Lived Intangible Assets, Net Debt Instrument, Convertible Terms Of Conversion [Domain] Debt Instrument, Convertible Terms Of Conversion [Domain] Debt Instrument, Convertible Terms Of Conversion [Domain] Expected recognized period (in years) Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Number of trading days Debt Instrument, Convertible, Threshold Trading Days Share-based payment arrangement, nonvested award, cost not yet recognized, amount Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Computer Software, Intangible Asset Computer Software, Intangible Asset [Member] Payment for shares withheld for employee taxes Payments For Shares Withheld For Employee Taxes Represents payments for shares withheld for employee taxes. Number of Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Property and Equipment, net Property, Plant and Equipment Disclosure [Text Block] Schedule of Supplemental Cash Flow Information Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Sublease income Sublease Income Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Accounts receivable Increase (Decrease) in Accounts Receivable Title of 12(b) Security Title of 12(b) Security Percentage of common stock owned by related party Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Supplemental cash flow information: Lessee, Operating Lease, Description [Abstract] Total costs and expenses Costs and Expenses Subsequent Event Subsequent Event [Line Items] Payment on Revolving Credit Facility Repayments of Lines of Credit Debt Instrument [Line Items] Debt Instrument [Line Items] Public Warrants Public Warrants Amount Of Public Warrants Business Combination and Asset Acquisition [Abstract] Business Combination and Asset Acquisition [Abstract] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Total lease liabilities Total lease liabilities Operating Lease, Liability Common shares, votes per share Common Stock, Number Of Votes The number of votes that each common share is entitled. Segment Information Segment Reporting Disclosure [Text Block] Volatility Measurement Input, Price Volatility [Member] Deferred reverse recapitalization costs Payments To Deferred Reverse Recapitalization Costs The cash outflow from deferred reverse recapitalization costs. 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Two Change in fair value of derivative liability Change in fair value of derivative liability Derivative, Gain (Loss) on Derivative, Net Liabilities and Stockholders' Equity Liabilities and Equity [Abstract] Granted (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Expired (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Denominator: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Accounts payable Accounts Payable, Current Restructuring charges Restructuring Charges Volume-weighted average trading price as percentage of conversion price Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Warrants Warrant [Member] Entity Filer Category Entity Filer Category Schedule of Redeemable Noncontrolling Interest Redeemable Noncontrolling Interest [Table Text Block] Basic (in shares) Weighted average common shares outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic United States UNITED STATES Unrecognized compensation costs Share-Based Payment Arrangement, Expense Commitments and contingencies Commitments and Contingencies Security Exchange Name Security Exchange Name Outstanding at the beginning (in dollars per share) Outstanding at the end (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Gain on disposition of assets Gain (Loss) on Disposition of Assets Weighted Average Useful Life (Years) Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Beginning balance Ending balance Redeemable Noncontrolling Interest, Equity, Carrying Amount Restricted stock Restricted Stock [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Other liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other Schedule of Net Carrying Amount of the Notes Schedule of Debt [Table Text Block] General and administrative General and Administrative Expense [Member] Revenue Revenue from related parties Revenue from Contract with Customer, Excluding Assessed Tax Schedule of Operating Leased Assets [Table] Schedule of Operating Leased Assets [Table] Increase (decrease) in film costs Increase (Decrease) in Film Costs Share consideration Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Cover [Abstract] Cover [Abstract] Schedule of Long-Term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Level 3 Fair Value, Inputs, Level 3 [Member] Capitalized software costs, net Internal Use Software, Net Amount of internal use software net. Impairment loss on goodwill Goodwill, Impairment Loss Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Allowance for credit loss Accounts Receivable, Allowance for Credit Loss Revenue Recognition Revenue from Contract with Customer [Text Block] Segment Reporting [Abstract] Segment Reporting [Abstract] Debt Instrument, Convertible Terms Of Conversion [Axis] Debt Instrument, Convertible Terms Of Conversion [Axis] Debt Instrument, Convertible Terms Of Conversion Noncontrolling interests Noncontrolling Interest [Member] Issuance of common stock in connection with share-based plans Share-Based Compensation Arrangement by Share-Based Payment Award, Value Of Common Stock Issued in Period Share-Based Compensation Arrangement by Share-Based Payment Award, Value Of Common Stock Issued in Period Capitalized Computer Software, Net [Abstract] Capitalized Computer Software, Net [Abstract] Outstanding receivable Due from Related Parties, Noncurrent Total liabilities and stockholders’ equity Liabilities and Equity Debt instrument term Debt Instrument, Term Unrealized (gain) loss on foreign currency Foreign Currency Transaction Gain (Loss), Unrealized Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Content Content [Member] Represents the member information pertaining to content. Amortization of debt discount and deferred issuance costs Amortization of Debt Issuance Costs Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Net income attributable to the redeemable noncontrolling interest Allocation of net income Net Income (Loss) Attributable to Redeemable Noncontrolling Interest Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Level 2 Fair Value, Inputs, Level 2 [Member] Percentage of qualifying investment grade accounts receivable Percentage of Qualifying Investment Grade Accounts Receivable Represents the percentage of qualifying investment grade accounts receivable. Current Fiscal Year End Date Current Fiscal Year End Date Secured Overnight Financing Rate (SOFR) Secured Overnight Financing Rate (SOFR) [Member] Secured Overnight Financing Rate (SOFR) Less: imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount 2015 Equity Incentive Plan 2015 Equity Incentive Plan This member represents equity incentive plan 2015. Diluted (in dollars per share) Net loss per common share, diluted (in dollars per share) Earnings Per Share, Diluted Intangible assets, net Net Carrying Value Intangible Assets, Net (Excluding Goodwill) Sale of Stock [Domain] Sale of Stock [Domain] Trademarks & tradenames Trademarks and Trade Names [Member] Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Change in fair value of warrant liabilities Change in fair value of warrants Fair Value Adjustment of Warrants Total current liabilities Liabilities, Current 2025 Lessee, Operating Lease, Liability, to be Paid, Year Two Net loss Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest Weighted average common shares outstanding: Earnings Per Share, Diluted, Other Disclosure [Abstract] Amount of capitalized internal used software Capitalized Computer Software, Additions Entity Ex Transition Period Entity Ex Transition Period Remainder of 2023 Lessee, Operating Sublease Income, Receivable, Remainder of Fiscal Year Amount of sublease income receivable in excess of one year to be paid in remainder of current fiscal year. Transaction price allocated to the remaining performance obligations Revenue, Remaining Performance Obligation, Amount Cumulative Effect, Period of Adoption, Adjustment Cumulative Effect, Period of Adoption, Adjustment [Member] Schedule of Maturities of Lease Liabilities Lessee, Operating Lease, Liability, Maturity [Table Text Block] Entity Address, Address Line One Entity Address, Address Line One Unrealized gain on investment Unrealized Gain (Loss) on Investments Product and Service [Axis] Product and Service [Axis] Class of Stock [Domain] Class of Stock [Domain] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Interest expense, net Interest Expense Exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Credit Facility [Axis] Credit Facility [Axis] Accrued compensation Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Accrued Compensation Amount of business combination recognized identifiable assets acquired and liabilities assumed accrued compensation. Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Subsequent Event [Table] Subsequent Event [Table] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Entity Tax Identification Number Entity Tax Identification Number Aggregate Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Four Amount of lessee's undiscounted obligation for lease payment for operating lease due after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Schedule of disaggregation of revenue Disaggregation of Revenue [Table Text Block] Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Remainder of 2023 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Contract assets Contract with Customer, Asset, after Allowance for Credit Loss, Current Shares withheld for employee taxes (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Net decrease in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Entity Central Index Key Entity Central Index Key Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Measurement Frequency [Axis] Measurement Frequency [Axis] Weighted Average Grant- Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Finite Lived And Indefinite Lived Intangible Assets By Major Class [Table] Finite Lived And Indefinite Lived Intangible Assets By Major Class [Table] Disclosure of finite-lived and indefinite-lived intangible assets, excluding goodwill, in total and by major class. Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Shares withheld for employee taxes Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Derivative liability, measurement input Derivative Liability, Measurement Input Total consideration Business Combination, Consideration Transferred Measurement Input Type [Axis] Measurement Input Type [Axis] Entity [Domain] Entity [Domain] City Area Code City Area Code General and administrative General and Administrative Expense Assets Assets [Abstract] Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Sale of Stock [Axis] Sale of Stock [Axis] Schedule of Right-of-Use Assets and Lease Liabilities Schedule of Operating Lease Assets and Liabilities [Table Text Block] Tabular disclosure of operating assets and liabilities Financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Advertising Advertising [Member] Stock based compensation Share-Based Payment Arrangement, Noncash Expense Debt Conversion Terms Two Debt Conversion Terms Two [Member] Debt Conversion Terms Two Variable Rate [Axis] Variable Rate [Axis] Other liabilities Other Liabilities, Noncurrent Capital expenditures Payments to Acquire Property, Plant, and Equipment Research and development Research and Development Expense [Member] Term (in years) Derivative, Term of Contract Revenue Recognition Disaggregation of Revenue [Line Items] 2024 Finite-Lived Intangible Asset, Expected Amortization, Year One Summary of Computation of Basic and Diluted Income (Loss) Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Number of mass arbitrations Number Of Mass Arbitrations Number Of Mass Arbitrations Total Lessee, Operating Sublease Income, Receivable Amount of sublease income receivable. Cost of revenue, excluding depreciation and amortization Cost of Sales [Member] Description of the Business Business Description and Basis of Presentation [Text Block] Expected percentage of reduction in workforce Restructuring and Related Cost, Number of Positions Eliminated, Period Percent Derivative liability Derivative Liability, Noncurrent