Leases - Schedule of Sublease Receipts to be Received Under Noncancellable Subleases (Details) $ in Thousands	Dec. 31, 2025 USD ($)
Leases [Abstract]
2026	$ 6,300
Thereafter	0
Total	$ 6,300

Lessee, Operating Sublease Income, Receivable, After Year One

No definition available.

Name:	bzfd_LesseeOperatingSubleaseIncomeReceivableAfterYearOne
Namespace Prefix:	bzfd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant