Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.22.1
Document and Entity Information - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Mar. 23, 2022
Jun. 30, 2021
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2021    
Document Fiscal Year Focus 2021    
Current Fiscal Year End Date --12-31    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001838361    
Entity File Number 001-40273    
Entity Registrant Name SUPERNOVA PARTNERS ACQUISITION COMPANY III, LTD.    
Entity Incorporation, State or Country Code E9    
Entity Tax Identification Number 98-1574762    
Entity Address, Address Line One 4301 50th Street NW    
Entity Address, Address Line Two Suite 300, PMB 1044    
Entity Address, City or Town Washington    
Entity Address, State or Province DC    
Entity Address, Postal Zip Code 20016    
City Area Code 202    
Local Phone Number 918-7050    
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 true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Shell Company true    
Entity Public Float     $ 273,500
ICFR Auditor Attestation Flag false    
Auditor Name Marcum LLP    
Auditor Firm ID 688    
Auditor Location Costa Mesa, CA    
Units      
Document Information [Line Items]      
Title of 12(b) Security Units, each consisting of one Class A ordinary share, $0.0001 par value and one-fifth of one redeemable warrant to purchase one Class A ordinary share    
Trading Symbol STRE.U    
Security Exchange Name NYSE    
Class A Common Stock      
Document Information [Line Items]      
Title of 12(b) Security Class A ordinary shares, par value $0.0001 per share    
Trading Symbol STRE    
Security Exchange Name NYSE    
Entity Common Stock, Shares Outstanding   28,103,449  
Entity Public Float     $ 9,730
Warrants      
Document Information [Line Items]      
Title of 12(b) Security Warrants, each whole exercisable for one Class A ordinary share at an exercise price of $11.50 per    
Trading Symbol STRE WS    
Security Exchange Name NYSE    
Class B Common Stock      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   7,025,862