Commitments and Contingencies - Additional information (Details) - USD ($)	1 Months Ended	9 Months Ended
Oct. 31, 2020	Sep. 30, 2022
Commitments and Contingencies
Maximum amount of new guarantee under lease agreement	$ 5,400,000	$ 1,500,000
New guarantee liabilities recognized under lease agreement		$ 0

Represents new guarantee liabilities recognized under lease agreement.

No definition available.

Name:	bzfd_NewGuaranteeLiabilitiesRecognizedUnderLeaseAgreement
Namespace Prefix:	bzfd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant