Quarterly report pursuant to Section 13 or 15(d)

Cover Page

v3.20.4
Cover Page - shares
2 Months Ended
Sep. 30, 2020
Jan. 22, 2021
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2020  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q3  
Document Transition Report false  
Entity Registrant Name Thayer Ventures Acquisition Corp  
Entity Central Index Key 0001820566  
Entity Incorporation, State or Country Code DE  
Current Fiscal Year End Date --12-31  
Entity File Number 001-39791  
Entity Tax Identification Number 85-2426959  
Entity Address, Address Line One 25852 McBean Parkway  
Entity Address, City or Town Valencia  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 91355  
City Area Code 415  
Local Phone Number 782-1414  
Title of 12(b) Security Class A common stock, par value $0.0001 per share  
Trading Symbol TVAC  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company true  
Units [Member]    
Document Information [Line Items]    
Title of 12(b) Security Units, each consisting of one Class A common stock, $0.0001 par value  
Trading Symbol TVAC  
Security Exchange Name NASDAQ  
Warrant [Member]    
Document Information [Line Items]    
Title of 12(b) Security Redeemable Warrants, each whole warrant exercisable for one share of Class A common stock  
Trading Symbol TVAC  
Security Exchange Name NASDAQ  
Common Class A [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   17,250,000
Common Class B [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   4,312,500