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Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Interest rate Debt Instrument, Interest Rate, Stated Percentage Exercise price (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Exercise Price Shares issued for C Acquisition (in shares) Stock Issued During Period, Shares, Acquisitions State Current State and Local Tax Expense (Benefit) Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] 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) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Film Costs Film Costs, Policy [Policy Text Block] Document Information [Line Items] Document Information [Line Items] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Equity Component [Domain] Equity Component [Domain] Schedule of Lease Costs Sublease, Fixed Monthly Rent [Table Text Block] Sublease, Fixed Monthly Rent Subsequent Event Type [Domain] Subsequent Event Type [Domain] Estimated fair value of each of the identifiable intangible assets Acquired Finite-Lived Intangible Assets [Line Items] Ownership [Axis] Ownership [Axis] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Stock issued price per share (in dollars per share) Business Acquisition, Share Price 2022 Operating Leases, Future Minimum Lease Payments, Due, in One Year Operating Leases, Future Minimum Lease Payments, Due, in One Year Supplemental cash flow information Supplemental Cash Flow Information [Abstract] Forfeited (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Warrants assumed as part of the Business Combination Noncash or Part Noncash Acquisition, Value of Liabilities Assumed Unrecognized compensation costs Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Plan Name [Domain] Plan Name [Domain] Letter of credit outstanding Long-Term Line of Credit Entity Address, State or Province Entity Address, State or Province Disposition of subsidiaries Noncontrolling Interest, Increase from Sale of Parent Equity Interest Other comprehensive income (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 Award Type [Axis] Award Type [Axis] Depreciation and amortization Deferred Tax Liabilities Depreciation And Amortization Amount of deferred tax liability attributable to taxable temporary differences from depreciation and amortization. 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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 Debt Outstanding borrowings Long-Term Debt, Excluding Current Maturities Prior period adjustments Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount Issuance of common stock for acquisition Noncash or Part Noncash Acquisition, Value of Assets Acquired Total liabilities Liabilities Deferred rent Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent 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] C Acquisition Measurement Period Adjustments Goodwill, Purchase Accounting Adjustments Investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Significant Accounting Policies [Table] Significant Accounting Policies [Table] Significant Accounting Policies Expected to vest Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Revolving Credit Facility Revolving Credit Facility [Member] Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Current (benefit) / provision Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Document Type Document Type Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Useful lives of property and equipment (in years) Property, Plant and Equipment, Useful Life Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Outstanding at the beginning Outstanding at the end Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Deferred income tax Deferred Income Tax Expense (Benefit) Developed technology Developed Technology Rights [Member] U.S. GILTI inclusion Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Amount Revolving credit facility, early termination fee, percentage Revolving Credit Facility, Early Termination Fee, Percentage Revolving Credit Facility, Early Termination Fee, Percentage Convertible preferred stock Convertible Preferred Stock [Member] Write-offs, net of recoveries Accounts Receivable, Allowance for Credit Loss, Writeoff Debt Disclosure [Abstract] Debt Disclosure [Abstract] Accounts Receivable and Allowance for Doubtful Accounts Accounts Receivable [Policy Text Block] Income Statement Location [Axis] Income Statement Location [Axis] Accrued expenses Accrued Liabilities, Current Reverse recapitalization, net of transaction costs (in shares) Stock Issued During Period, Shares, Reverse Stock Splits Numerator: Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Asset Fair Value Finite-Lived Intangible Assets Acquired Cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Accounting Policies [Abstract] Accounting Policies [Abstract] Interest expense Interest Expense, Debt Unused borrowing capacity Debt Instrument, Unused Borrowing Capacity, Amount Goodwill Business Combination Goodwill Adjustment Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. 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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] Expected dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Schedule of Capitalized Software Costs Schedule of Capitalized Software [Table Text Block] Tabular disclosure of capitalized software. Minimum monthly average utilization of debt Minimum Monthly Average Utilization of Debt The amount of minimum monthly average utilization of debt. Leases [Abstract] Term (in years) Measurement Input, Expected Term [Member] Total stockholders’ equity Balance at beginning Balance at end Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Basis of Financial Statements and Principles of Consolidation Consolidation, Policy [Policy Text Block] Redeemable Noncontrolling Interest [Line Items] Redeemable Noncontrolling Interest [Line Items] 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. Entity Emerging Growth Company Entity Emerging Growth Company Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Borrowings from secured borrowing facility Proceeds from Issuance of Secured Debt Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Stock-based compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount Individual Monetization: Film, Monetized on Its Own, Capitalized Cost [Abstract] 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 Capitalized Software Costs, net Intangible Assets Disclosure [Text Block] 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Four Increase in number of shares reserved for issuance as percentage of total number of outstanding shares Increase In Number Of Shares Reserved For Issuance As Percentage Of Total Number Of Outstanding Shares Represents the increase in number of shares reserved for issuance as percentage of total number of outstanding shares. Comprehensive (loss) income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Foreign Deferred Foreign Income Tax Expense (Benefit) Granted Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Amortized film costs Film, Monetized on Its Own, Amortization Expense Borrowings from revolving credit facility Issuance of letter of credit Proceeds from Lines of Credit Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Use of Estimates Use of Estimates, Policy [Policy Text Block] Acquisitions and Dispositions Business Combination Disclosure [Text Block] Outstanding payable Due to Related Parties, Noncurrent Subleased Property Subleased Property [Member] Subleased Property Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Concentration risk, percentage Concentration Risk, Percentage Customer 1 Customer 1 [Member] Customer 1 Preliminary Preliminary This member stands for preliminary. Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Net loss Business Acquisition, Pro Forma Net Income (Loss) 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 Credit Facility [Domain] Credit Facility [Domain] Gross Carrying Value Intangible Assets, Gross (Excluding Goodwill) Net income (loss) per Class A, Class B and Class C common share, basic (in dollars per share) Net loss per common share, basic (in dollars per share) Earnings Per Share, Basic Weighted-average remaining requisite service period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period 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 Sales and Marketing [Policy Text Block] Disclosure of accounting policy for sales and marketing. 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Current assets Assets, Current [Abstract] Cash paid for amounts included in measurement of lease liabilities: Operating Lease, Liability [Abstract] Restructuring and related cost, expected cost remaining Restructuring and Related Cost, Expected Cost Remaining 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. 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 Accumulated deficit Accumulated deficit Retained Earnings (Accumulated Deficit) Impaired Long-Lived Assets Held and Used, Asset Name [Domain] Impaired Long-Lived Assets Held and Used, Asset Name [Domain] Proceeds from issuance of convertible notes, net of issuance costs Proceeds from Convertible Debt Finite Lived And Indefinite Lived Intangible Assets By Major Class [Table] Schedule of Finite-Lived Intangible Assets [Table] Bad debt Deferred Tax Asset, Tax Deferred Expense, Reserve and Accrual, Accounts Receivable, Allowance for Credit Loss Fair Value, Recurring Fair Value, Recurring [Member] 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] Schedule of Company's Pro Forma Combined Revenues and Net Income Business Acquisition, Pro Forma Information [Table 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] 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 Section 174 capitalized R&D costs Deferred Tax Assets, in Process Research and Development Yahoo Japan Yahoo Japan [Member] Yahoo Japan Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Exchange ratio Business Combination, Exchange Ratio Represents the exchange ratio in a business combination. Net operating losses subject to expiration Operating Loss Carryforwards, Subject to Expiration Amount of operating loss carryforward subject to expiration, before tax effects, available to reduce future taxable income under enacted tax laws. Total current (benefit) / provision Current Income Tax Expense (Benefit) International International Represents the information pertaining to International. Evaluation of Long-Lived Assets and Impairment Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Transaction costs Effective Income Tax Rate Reconciliation, Transaction Costs, Amount Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to transaction costs. 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 Redeemable Noncontrolling Interest, by Legal Entity [Table] Redeemable Noncontrolling Interest, by Legal Entity [Table] Shares convertible (in shares) Debt Conversion, Converted Instrument, Shares Issued Stock-based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-Based Compensation Cost Equity investment without a readily determinable fair value Equity Securities without Readily Determinable Fair Value, Amount 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 Balance at the beginning Balance at the end Goodwill Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Income tax provision (benefit) Total (benefit) / provision Income Tax Expense (Benefit) Geographical [Domain] Geographical [Domain] Total deferred tax liability Deferred Income Tax Liabilities, Net Valuation allowance Deferred Tax Assets, Valuation Allowance Proceeds from Sales of Assets, Investing Activities Proceeds from Sales of Assets, Investing Activities Film, Monetized on Its Own, Amortization Expense, Statement of Income or Comprehensive Income [Extensible Enumeration] Film, Monetized on Its Own, Amortization Expense, Statement of Income or Comprehensive Income [Extensible Enumeration] Entity Public Float Entity Public Float Less: Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Derivative liability Derivative Liability, Subject to Master Netting Arrangement, before Offset Capitalized Software Costs Internal Use Software, Policy [Policy Text Block] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Accounts Receivable Accounts Receivable [Member] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Common stock Common Stock, Value, Issued Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] 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] Cash and cash equivalents and restricted cash at beginning of period Cash and cash equivalents and restricted cash at end of period Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Total 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 Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Current liabilities Liabilities, Current [Abstract] 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 Represents the member information pertaining to commerce and other. Proceeds from exercise of stock options Proceeds from Stock Options Exercised 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 Deferred revenue Contract with Customer, Liability, Current Accounting Standards Update 2016-02 Accounting Standards Update 2016-02 [Member] Total BuzzFeed, Inc. Stockholders' Equity (Deficit) 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 Operating lease cost Operating Lease, Cost Add: interest on Notes Interest on Convertible Debt, Net of Tax Other comprehensive income (loss) Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Goodwill, Acquired During Period Goodwill, Acquired During Period Revenue Business Acquisition, Pro Forma Revenue Merger of BuzzFeed Japan and HuffPost Japan Noncontrolling Interest, Derease from Business Combination Amount of decrease in noncontrolling interest from a business combination. Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Reverse recapitalization, net of transaction costs Stock Issued During Period, Value, Reverse Stock Splits Reduction in the value of shares during the period as a result of a reverse stock split. 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 Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Five Costs and Expenses Operating Costs and Expenses [Abstract] 2026 Lessee, Operating Sublease Income, Receivable, Year Four Lessee, Operating Sublease Income, Receivable, Year Four Unamortized debt discount and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Supplemental Cash Flow Information Cash Flow, Supplemental Disclosures [Text Block] Debt Conversion Terms One Debt Conversion Terms One [Member] Debt Conversion Terms One Cash equivalents: Cash and Cash Equivalents [Abstract] Reclassification into permanent equity Reclassifications of Temporary to Permanent Equity 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. Recognized loss on disposition Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Accounts receivable allowance Accounts Receivable, Allowance for Credit Loss, Current Issuance of common stock upon exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Common stock, shares authorized (in shares) Common Stock, Shares Authorized Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Maximum Maximum [Member] Prepaid expenses and other assets Prepaid Expense and Other Assets, Noncurrent 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 Customer 3 Customer 3 [Member] Customer 3 Deferred revenue Increase (Decrease) in Contract with Customer, Liability Business Acquisitions [Line Items] Business Acquisition [Line Items] Measurement Frequency [Domain] Measurement Frequency [Domain] Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Debt Instrument, Convertible Terms Of Conversion [Domain] Debt Instrument, Convertible Terms Of Conversion [Domain] Debt Instrument, Convertible Terms Of Conversion [Domain] Impairment of leasehold Impairment of Leasehold Proceeds from reverse recapitalization, net of costs Proceeds From (Payment For) Reverse Recapitalization, Net Of Costs The cash inflow (outflow) resulting from reverse recapitalization net of costs. Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Cost of Revenue Cost of Goods and Service [Policy Text Block] Number of trading days Debt Instrument, Convertible, Threshold Trading Days Computer Software, Intangible Asset Computer Software, Intangible Asset [Member] Payment for shares withheld for employee taxes Payments For Shares Withheld For Employee Taxes Payments For Shares Withheld For Employee Taxes Commercial Agreement Commercial Agreement Represents information pertaining to Commercial Agreement. Schedule of Supplemental Cash Flow Information Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Noncash or Part Noncash Acquisitions [Line Items] Noncash or Part Noncash Acquisitions [Line Items] Income tax benefit for stock- based compensation arrangements Share-Based Payment Arrangement, Expense, Tax Benefit Sublease income Sublease Income Accounts receivable Increase (Decrease) in Accounts Receivable Title of 12(b) Security Title of 12(b) Security Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Ownership interest, noncontrolling owners (in percent) Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Payments on revolving credit facility Repayments of Lines of Credit Common shares, votes per share (in vote per share) Common Stock, Number Of Votes The number of votes that each common share is entitled. Segment Information Segment Reporting Disclosure [Text Block] Other income Other Nonoperating Income Volatility Measurement Input, Price Volatility [Member] Liabilities and Stockholders' Equity Liabilities and Equity [Abstract] 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] Acquisition contributed of net income Business Combination, Separately Recognized Transactions, Net Gains and Losses Accounts payable Accounts Payable, Current Income Tax Authority [Axis] Income Tax Authority [Axis] Deduct: change in fair value of derivative liability Change In Fair Value Of Derivative Liability, Effect On Basic Earnings Per Share Change In Fair Value Of Derivative Liability, Effect On Basic Earnings Per Share Escrowed shares (in shares) Escrowed Shares The number of escrowed shares. Volume-weighted average trading price as percentage of conversion price Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Proceeds from issuance of common stock Cash investment Proceeds from Issuance of Common Stock Basic weighted average common shares outstanding (in shares) Weighted average common shares outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Collateral amount Debt Instrument, Collateral Amount (Gain) loss on disposition of assets Gain (loss) on disposition of assets Gain (Loss) on Disposition of Assets Significant Accounting Policies [Line Items] Significant Accounting Policies [Line Items] Significant Accounting Policies 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] Schedule of Net Carrying Amount of the Notes Schedule of Debt [Table Text Block] General and administrative General and Administrative Expense [Member] Operating losses indefinite lived carryforward Operating Losses Indefinite Lived Carryforward Amount of operating losses indefinite carry forward. Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Decrease in film costs Increase (Decrease) in Film Costs 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. Beginning balance Ending balance Accounts Receivable, Allowance for Credit Loss Permanent differences Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount 2026 Operating Leases, Future Minimum Lease Payments, Due, in Five Years Operating Leases, Future Minimum Lease Payments, Due, in Five Years 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] Interest expense, net Interest Income (Expense), Net Debt instrument term Debt Instrument, Term Schedule of Deferred Tax Assets and Deferred Tax Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Unrealized loss (gain) 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 Represents the member information pertaining to content. Goodwill [Roll Forward] Goodwill [Roll Forward] 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] Disposal Group Name [Domain] Disposal Group Name [Domain] Business acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Issuance of Notes Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances Derivative and warrant liabilities Effective Income Tax Rate Reconciliation, Derivative Liability, Amount Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to derivative liability. 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 Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items] Finite-Lived Intangible Assets [Line Items] Intangible assets, net Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Other (Expense) Income, Net Other Nonoperating Income and Expense [Text Block] 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 Concentration Risk Type [Axis] Concentration Risk Type [Axis] Total current liabilities Liabilities, Current Net income (loss) Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest Customer Concentration Risk Customer Concentration Risk [Member] Total (benefit) / provision Income Tax Expense (Benefit), Continuing Operations [Abstract] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Amount of capitalized software Capitalized Computer Software, Additions Entity Ex Transition Period Entity Ex Transition Period Transaction price allocated to the remaining performance obligations Revenue, Remaining Performance Obligation, Amount Options granted term Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Section 162(m) Effective Income Tax Rate Reconciliation, Section 162(m), Amount Effective Income Tax Rate Reconciliation, Section 162(m), Amount Revenue from Contract with Customer Benchmark Revenue from Contract with Customer Benchmark [Member] Effect of change in tax rates Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Income Tax Authority [Domain] Income Tax Authority [Domain] Unrealized gain on investment Unrealized gain on investments Unrealized Gain (Loss) on Investments Increase decrease in valuation allowance Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] 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] Reconciliation of cash and cash equivalents and restricted cash within the consolidated balance sheets to the amounts shown in the statement of cash flows: Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract] Vested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Foreign currency translation & transactions Effective Income Tax Rate Reconciliation Foreign Currency Translation And Transactions Represents the effective income tax reconciliations foreign currency translations. Entity Tax Identification Number Entity Tax Identification Number Share-based compensation arrangement by share-based payment award, number of shares authorized (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Aggregate Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract] Thereafter Operating Leases, Future Minimum Lease Payments, Due, After Year Five Operating Leases, Future Minimum Lease Payments, Due, After Year Four Shares withheld for employee taxes (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation 2024 Operating Leases, Future Minimum Lease Payments, Due, in Three Years Operating Leases, Future Minimum Lease Payments, Due, in Three Years Summary of Reconciliation of the U.S. Statutory Income Tax Rate to the Company's Effective Tax Rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Net (decrease) increase in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect State income taxes Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Entity Central Index Key Entity Central Index Key Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Repayments on secured borrowing facility Repayments of Secured Debt 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 Assets Assets [Abstract] General and Administrative Selling, General and Administrative Expenses, Policy [Policy Text Block] 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] Schedule Of Operating Lease Assets And Liabilities Non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Stock based compensation Share-Based Payment Arrangement, Noncash Expense Non-cash transactions: Leases, Operating [Abstract] Share-based compensation arrangement by share-based payment award, options, grants in period, weighted average grant date fair value (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Variable Rate [Axis] Variable Rate [Axis] Other liabilities Other Liabilities, Noncurrent 2021 Equity Incentive Plan 2021 Equity Incentive Plan [Member] 2021 Equity Incentive Plan Capital expenditures Payments to Acquire Property, Plant, and Equipment Verizon Verizon Communications Inc. Verizon Verizon Communications Inc. This member stands for Verizon Communications Inc. 2023 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] Right-of-use assets obtained in exchange for new operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Z Holdings Corporation Z Holdings Corporation Represents the member information pertaining to Z Holdings Corporation. Description of the Business Business Description and Basis of Presentation [Text Block] Customer [Domain] Customer [Domain] 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) income Net (loss) income Net (loss) income Net (loss) income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest HuffPost HuffPost Represents information pertaining to HuffPost Acquisition. Entity Address, Postal Zip Code Entity Address, Postal Zip Code Lease liabilities Deferred Tax Assets, Lease Liabilities Deferred Tax Assets, Lease Liabilities BuzzFeed do B r a s I l Internet L t d a BuzzFeed Do Brasil Internet Ltda [Member] This member stands for BuzzFeed do B r a s I l Internet Ltda. Preferred stock dividend rate Preferred Stock, Dividend Rate, Percentage Related party transaction expenses 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] Prepaid and other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Percentage of unused commitment fee Percentage of Unused Commitment fee Percentage of unused commitment fee. Schedule of Other Nonoperating Income (Expense) Schedule of Other Nonoperating Income (Expense) [Table Text Block] Statistical Measurement [Domain] Statistical Measurement [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Feature films in production Film, Monetized on Its Own, Capitalized Cost, Production Summary of Supplemental Cash Flow Information and Additional Information Lessee, Supplemental Cash Flow Information And Additional Information [Table Text Block] Lessee, Supplemental Cash Flow Information And Additional Information Issuance costs allocated to derivative liability Issuance Costs Allocated To Derivative Liabilities Amount of issuance costs allocated to the derivative liabilities. C Acquisition C Acquisition This member stands for Millennial and Gen Z consumers. Schedule of Fair Value of Consideration Exchanged Schedule of Business Acquisitions, by Acquisition [Table Text Block] Domestic Tax Authority Domestic Tax Authority [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Net (loss) income attributable to BuzzFeed, Inc. Net Income (Loss) Attributable to Parent Contingent Consideration by Type [Axis] Contingent Consideration by Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Unsecured Convertible Notes, Due 2026 Unsecured Convertible Notes, Due 2026 [Member] Represents information pertaining to the unsecured Convertible Notes, Due 2026 [Member] 2023 Lessee, Operating Sublease Income, Receivable, Year One Lessee, Operating Sublease Income, Receivable, Year One Sublease, fixed monthly rent Sublease, Fixed Monthly Rent Sublease, Fixed Monthly Rent Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Restructuring Plan [Axis] Restructuring Plan [Axis] Leases Lessee, Operating Leases [Text Block] Amortization expense Capitalized Computer Software, Amortization Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration] Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration] Plan Name [Axis] Plan Name [Axis] Number of operating segments Number of Operating Segments Noncontrolling Interest [Abstract] Noncontrolling Interest [Abstract] Capitalization of internal-use software Payments to Acquire Software Sale of foreign subsidiary Effective Income Tax Reconciliation Sale Of Foreign Subsidiary Represents the effective income tax reconciliations sale of subsidiary . Goodwill [Line Items] Goodwill [Line Items] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] NBCUniversal Media, LLC NBCUniversal Media, LLC [Member] Represents the information pertaining to NBCUniversal Media, LLC . Level 1 Fair Value, Inputs, Level 1 [Member] Impact of assumed conversion of Notes (in shares) Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Other non-current liabilities: Nonfinancial Liabilities Fair Value Disclosure [Abstract] Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Cash (used in) provided by operating activities Net cash flows in operations Net Cash Provided by (Used in) Operating Activities Debt instrument, covenants, liquidity threshold Debt Instrument, Covenants, Liquidity Threshold Debt Instrument, Covenants, Liquidity Threshold Noncash or Part Noncash Acquisitions by Unique Description [Axis] Noncash or Part Noncash Acquisitions by Unique Description [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Document Annual Report Document Annual Report 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 compensation. Geographical [Axis] Geographical [Axis] 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 and cash equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Issuance of common stock Stock Issued During Period, Value, New Issues Acquired Technology Technology-Based Intangible Assets [Member] Accrued expenses, other current liabilities and other liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Derivative liability Derivative Liability, Current Debt instrument margin rate Debt Instrument Margin Rate Percentage of debt instrument margin rate. Summary of Property and Equipment, net Property, Plant and Equipment [Table Text Block] Number of positions eliminated Restructuring and Related Cost, Number of Positions Eliminated Shares issued (in shares) Preferred Stock, Shares Issued Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Loss on disposition of subsidiaries Loss on disposition of subsidiary Gain (Loss) on Disposition of Stock in Subsidiary 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] Restructuring cost Other Restructuring Costs 2023 Lessee, Operating Lease, Liability, to be Paid, Year One Foreign Foreign Income Tax Expense (Benefit), Continuing Operations Number of shares issued for acquisition (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Noncash lease expense Noncash Lease Expense Noncash Lease Expense Deferred tax liabilities Components of Deferred Tax Liabilities [Abstract] Minimum editorial promotion expense agreed to provide in each year Marketing Expense 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] Acquisition contributed of revenue Business Combination, Separately Recognized Transactions, Revenues and Gains Recognized Total assets Assets Earnings Per Share [Abstract] Earnings Per Share [Abstract] Deferred tax liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Final Amount of deferred tax liability attributable to taxable temporary differences assumed at the acquisition date. 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Goodwill impairment Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount Deferred rent Deferred Rent Credit, Noncurrent Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Total deferred (benefit) / provision Income Tax Benefit (Provision), Net Of Business Combination Adjustments Income Tax Benefit (Provision), Net Of Business Combination Adjustments Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] 2025 Lessee, Operating Sublease Income, Receivable, Year Three Lessee, Operating Sublease Income, Receivable, Year Three 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. Debt issuance cost Debt Issuance Costs, Net Auditor Name Auditor Name Accounting Standards Update [Axis] Accounting Standards Update [Axis] Share price (in dollars per share) Share Price Net operating losses Operating Loss Carryforwards Allocation of undistributed earnings to convertible preferred stock Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Measurement Period Adjustments Measurement Period Adjustments This member stands for measurement period adjustments. Research and development Research and Development Expense CANADA CANADA Disposal Group Classification [Axis] Disposal Group Classification [Axis] Restricted stock units Restricted Stock Units (RSUs) [Member] CM Partners, LLC CM Partners, LLC Represents information pertaining to CM Partners, LLC. Research & development tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount 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 Cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Impression per year Impression Per Year Amount of Impression per year. London Interbank Offered Rate (LIBOR) London Interbank Offered Rate (LIBOR) [Member] Subsequent Events [Abstract] Subsequent Events [Abstract] State Deferred State and Local Income Tax Expense (Benefit) Description Of The Business [Line Items] Description Of The Business [Line Items] Description Of The Business Amortization expense associated with intangible assets Amortization of Intangible Assets 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 Summary of Goodwill Activities Schedule of Goodwill [Table Text Block] Thereafter Lessee, Operating Sublease Income, Receivable, After Year Five Lessee, Operating Sublease Income, Receivable, After Year Five 2025 Lessee, Operating Lease, Liability, to be Paid, Year Three Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Restructuring Costs [Abstract] Restructuring Costs [Abstract] Sales and marketing Selling and Marketing Expense Total BuzzFeed, Inc. stockholders’ equity Stockholders' Equity Attributable to Parent Forfeited Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value HuffPost acquisition, noncontrolling interest Noncontrolling Interest, Increase from Business Combinations Amount of increase in noncontrolling interest from a business combination. Other Deferred Tax Assets, Other Schedule of Stock Options Activity Schedule of Stock Options Roll Forward [Table Text Block] Less: Accumulated amortization Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization 2025 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] Accumulated Deficit Retained Earnings [Member] Total lease cost Lease, Cost Common Stock Common Stock [Member] Number of reportable segments Number of Reportable Segments Number of shares available for grant (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Statement [Table] Statement [Table] Vested 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 Shares issued for C Acquisition Stock Issued During Period, Value, Acquisitions Repurchase price as percentage of par plus accrued and unpaid interest Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Letter of Credit Letter of Credit [Member] Furniture and fixtures Furniture and Fixtures [Member] Noncurrent lease liabilities Operating Lease, Liability, Noncurrent Tax credits Deferred Tax Assets, Tax Credit Carryforwards, Research Schedule of Significant Unobservable Inputs 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] 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] Deferred rent Increase Decrease in Deferred Rent The increase (decrease) during the reporting period in deferred rent. 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) Disposal Group Name [Axis] Disposal Group Name [Axis] Accounts receivable (net of allowance for doubtful accounts of $1,879, and $1,094 as at December 31, 2022 and 2021) Accounts Receivable, after Allowance for Credit Loss, Current Fair value of the notes Convertible Debt, Fair Value Disclosures Equity Components [Axis] Equity Components [Axis] 2027 Lessee, Operating Sublease Income, Receivable, Year Five Lessee, Operating Sublease Income, Receivable, Year Five Comprehensive (Loss) Income Comprehensive Income, Policy [Policy Text Block] UNITED KINGDOM UNITED KINGDOM Statement [Line Items] Statement [Line Items] Number of RSUs outstanding subject to a certain vesting condition Outstanding at the beginning Outstanding at the end 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 H u f f I n g t o n P o s t Italia S.R.L H u f f I n g t o n P o s t Italia S.R.L This member stands for H u f f I n g t o n P o s t I t a l I a S.R.L. Total consideration for HuffPost Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest Right-of-use assets Operating Lease, Right-of-Use Asset Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] SPAIN SPAIN Investments Equity Securities without Readily Determinable Fair Value [Policy Text Block] Auditor Firm ID Auditor Firm ID Document Transition Report Document Transition Report Foreign Tax Authority Foreign Tax Authority [Member] Local Phone Number Local Phone Number (Loss) income from operations Operating Income (Loss) Recently Adopted Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Asahi Shimbun Company Asahi Shimbun Company Represents the member information pertaining to Asahi Shimbun Company. Prepaid expenses and other current assets and prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Accruals Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities State and Local Jurisdiction State and Local Jurisdiction [Member] Interest expense Deferred Tax Assets, Interest Expense Amount, before allocation of valuation allowances, of deferred tax asset attributable to deductible differences from interest expense. Total Liabilities, Fair Value Disclosure Subtenant rent free period Subtenant Rent Free Period Subtenant Rent Free Period Effect of foreign operations Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Adjustments to reconcile net (loss) income to net cash used in operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Goodwill and Intangibles, net Goodwill and Intangible Assets Disclosure [Text Block] Schedule of RSU Activity Summary of Restricted Stock Unit Activity [Table Text Block] The tabular disclosure of summary of restricted stock units. Number of days prior to the measurement date considered for average share price 1 Number of Days Prior to the Measurement Date Considered for Average Share Price 1 Number of Days Prior to the Measurement Date Considered for Average Share Price 1 Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Preferred stock, par value per share (in dollars per share) Preferred Stock, Par or Stated Value Per Share Additions Accounts Receivable, Allowance for Credit Loss, Additions Amount of additions of accounts receivable charged against the allowance. 2026 Lessee, Operating Lease, Liability, to be Paid, Year Four Income Statement [Abstract] Income Statement [Abstract] Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Federal Deferred Federal Income Tax Expense (Benefit) Impairment of long-lived assets Impairment, Long-Lived Asset, Held-for-Use Additional Paid-in Capital Additional Paid-in Capital [Member] Document Fiscal Period Focus Document Fiscal Period Focus Intrinsic value of stock options exercised Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Diluted weighted average common shares outstanding (in shares) Weighted average common shares outstanding, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Accrued reverse recapitalization costs Noncash Accrued Reverse Recapitalization Costs Amount of noncash accrued reverse recapitalization costs. Expected term (years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Schedule of Income Tax Examinations Summary of Income Tax Examinations [Table Text Block] Granted Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Number of days prior to the measurement date considered for average share price 2 Number of Days Prior to the Measurement Date Considered for Average Share Price 2 Number of Days Prior to the Measurement Date Considered for Average Share Price 2 Impairment charges related to film costs Film, Monetized on Its Own, and Film Group, Impairment Convertible Debt Convertible Debt [Member] C Acquisition C Acquisition Purchase Agreement [Member] This member stands for C Acquisition Purchase Agreement. Deferred tax assets Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Liabilities: Financial Liabilities Fair Value Disclosure [Abstract] 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] Other expense Other Nonoperating Expense Net (loss) income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Net income (loss) attributable to holders of Class A, Class B and Class C common stock, basic Net loss attributable to holders of Class A, Class B, and Class C common stock for basic net loss per share Net Income (Loss) Available to Common Stockholders, Basic Common stock, shares issued (in shares) Common Stock, Shares, Issued Other non-current liabilities Other Liabilities, Fair Value Disclosure Exchange (loss) gain Foreign Currency Transaction Gain (Loss), before Tax Cash used in investing activities Net Cash Provided by (Used in) Investing Activities Aggregate principal amount Debt Instrument, Face Amount Comprehensive (loss) income attributable to BuzzFeed, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Schedule of Impaired Long-Lived Assets Held and Used [Table] Schedule of Impaired Long-Lived Assets Held and Used [Table] 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. 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Stock-based compensation cost 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 Intangible assets acquired, estimated useful life 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] Other liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other Revenue Revenue from related parties Revenue from Contract with Customer, Excluding Assessed Tax Conversion of shares (in shares) Stock Issued During Period, Shares, Conversion of Convertible Securities Share consideration Business Combination, Consideration Transferred, Equity Interests Issued and Issuable 2023 Operating Leases, Future Minimum Lease Payments, Due, in Two Years Operating Leases, Future Minimum Lease Payments, Due, in Two Years Number of shares available for future issuance (in shares) Common Stock, Capital Shares Reserved for Future Issuance Cover [Abstract] Cover [Abstract] Entity Voluntary Filers Entity Voluntary Filers Goodwill impairment Goodwill impairment Goodwill, Impairment Loss Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction 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 ValueCommerce Co. 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[Member] Represents the information pertaining to BuzzFeed, Inc. 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Income tax (benefit) provision at the U.S. federal statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Advertising Advertising [Member] Debt Conversion Terms Two Debt Conversion Terms Two [Member] Debt Conversion Terms Two Disposal Group Classification [Domain] Disposal Group Classification [Domain] Impairment expense Asset Impairment Charges Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Research and development Research and Development Expense [Member] Number of mass arbitrations Number Of Mass Arbitrations Number Of Mass Arbitrations Total Lessee, Operating Sublease Income, Receivable Lessee, Operating Sublease Income, Receivable Redeemable noncontrolling interest Redeemable Noncontrolling Interest, Equity, Preferred, Carrying Amount Cost of revenue, excluding depreciation and amortization Cost of Sales [Member] Number of positions eliminated, percentage Restructuring and Related Cost, Number of Positions Eliminated, Period Percent Derivative liability Derivative Liability, Noncurrent