XML 20 R1.htm IDEA: XBRL DOCUMENT v3.22.0.1
COVER - USD ($)
 12 Months Ended
Dec. 31, 2021
Feb. 28, 2022
Jun. 30, 2021
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2021    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-40963    
Entity Registrant Name Allbirds, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 47-3999983    
Entity Address, Address Line One 730 Montgomery Street    
Entity Address, City or Town San Francisco    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 94111    
City Area Code 628    
Local Phone Number 225-4848    
Title of 12(b) Security Class A Common Stock, $0.0001 par value per share    
Trading Symbol BIRD    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
ICFR Auditor Attestation Flag false    
Entity Shell Company false    
Entity Public Float     $ 0
Documents Incorporated by Reference Portions of the registrant's definitive proxy statement relating to the 2022 annual meeting of stockholders are incorporated by reference into Part III of this Annual Report on Form 10-K where indicated. Such definitive proxy statement will be filed with the Securities and Exchange Commission within 120 days after the end of the registrant's fiscal year ended December 31, 2021.    
Entity Central Index Key 0001653909    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Amendment Flag false    
Class A Common Stock      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   80,530,561  
Class B Common Stock      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   66,834,087