STATEMENT OF OPERATIONS (parenthetical)	Dec. 31, 2020 shares
Over-allotment option \| Common stock subject to redemption \| 890 5TH AVENUE PARTNERS, INC.
Maximum shares subject to forfeiture	937,500

Represents the maximum number of common stock shares subject to forfeiture.

No definition available.

Name:	bzfd_MaximumCommonStockSharesSubjectToForfeiture
Namespace Prefix:	bzfd_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant