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Commitments & Contingencies (Details) - 890 5TH AVENUE PARTNERS, INC. $ / shares in Units, $ in Millions | 9 Months Ended
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Sep. 30, 2021 USD ($) $ / shares
Commitments And Contingencies [Line Items] |
Underwriting discount per unit | $ / shares | $ 0.20
Aggregate underwriter discount | $ 5.8
Percentage of marketing fee payable to the underwriters | 3.50%
Aggregate underwriter fee payable | $ 10.1

X
- Definition The amount of aggregate underwriter fee payable. + References No definition available. + Details
Name: | bzfd_AggregateUnderwriterFeePayable
Namespace Prefix: | bzfd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition 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. + References No definition available. + Details
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Namespace Prefix: | bzfd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of marketing fee payable to the underwriters. + References No definition available. + Details
Name: | bzfd_PercentageOfMarketingFeePayableToUnderwriters
Namespace Prefix: | bzfd_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the amount of offering fees incurred and paid for underwriters. + References No definition available. + Details
Name: | bzfd_SaleOfStockUnderwritingFees
Namespace Prefix: | bzfd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the underwriting discount per unit. + References No definition available. + Details
Name: | bzfd_UnderwritingDiscountPerUnit
Namespace Prefix: | bzfd_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |