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Document and Entity Information - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2023
Feb. 20, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2023    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Trading Symbol DVAX    
Entity Registrant Name Dynavax Technologies Corp    
Entity Central Index Key 0001029142    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer Yes    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   130,614,772  
Entity Public Float     $ 0.9
Title of 12(b) Security Common Stock, $0.001 par value    
Security Exchange Name NASDAQ    
Entity File Number 001-34207    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 33-0728374    
Entity Address, Address Line One 2100 Powell Street    
Entity Address, Address Line Two Suite 720    
Entity Address, City or Town Emeryville    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 94608    
City Area Code 510    
Local Phone Number 848-5100    
Document Annual Report true    
Document Transition Report false    
Entity Interactive Data Current Yes    
ICFR Auditor Attestation Flag true    
Documents Incorporated by Reference

Portions of the Definitive Proxy Statement for the registrant’s 2024 Annual Meeting of Stockholders are incorporated by reference into Part III, Items 10-14 of this Form 10-K. The Definitive Proxy Statement will be filed no later than 120 days after the close of the registrant’s fiscal year ended December 31, 2023.

    
Document Financial Statement Error Correction [Flag] false    
Auditor Name Ernst & Young LLP    
Auditor Location San Francisco, California    
Auditor Firm ID 42