v3.26.1
Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Mar. 12, 2026
Jun. 30, 2025
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-39877    
Entity Registrant Name BuzzFeed, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 85-3022075    
Entity Address, Address Line One 50 West 23rd Street    
Entity Address, State or Province NY    
Entity Address, City or Town New York    
Entity Address, Postal Zip Code 10010    
City Area Code 646    
Local Phone Number 397-2039    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction true    
Document Financial Statement Restatement Recovery Analysis false    
Entity Shell Company false    
Entity Public Float     $ 65.3
Entity Central Index Key 0001828972    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2025    
Amendment Flag false    
Class A Common Stock, $0.0001 par value per share      
Document Information [Line Items]      
Title of 12(b) Security Class A Common Stock, $0.0001 par value per share    
Trading Symbol BZFD    
Security Exchange Name NASDAQ    
Entity Common Stock, Shares Outstanding   36,296,018  
Redeemable warrants, each whole warrant exercisable for one share of Class A Common Stock at an exercise price of approximately $46.00 per share      
Document Information [Line Items]      
Title of 12(b) Security Redeemable warrants, each whole warrant exercisable for one share of Class A Common Stock at an exercise price of approximately $46.00 per share    
Trading Symbol BZFDW    
Security Exchange Name NASDAQ    
Class B Common Stock      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   1,342,709  
Class C Common Stock      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   0