Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.22.1
Document and Entity Information - USD ($)
$ in Thousands
11 Months Ended
Dec. 31, 2021
Mar. 30, 2022
Jun. 30, 2021
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2021    
Entity File Number 001-40427    
Entity Registrant Name GRAF ACQUISITION CORP. IV    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 86-2191918    
Entity Address, Address Line One 1790 Hughes Landing Blvd., Suite 400    
Entity Address, City or Town The Woodlands    
Entity Address State Or Province TX    
Entity Address, Postal Zip Code 77380    
City Area Code 346    
Local Phone Number 442-0819    
Entity Current Reporting Status No    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
ICFR Auditor Attestation Flag false    
Entity Ex Transition Period false    
Entity Shell Company true    
Entity Common Stock, Shares Outstanding   21,451,875  
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001845459    
Amendment Flag false    
Entity Public Float     $ 170,760
Auditor Name WithumSmith+Brown, PC    
Auditor Firm ID 100    
Auditor Location New York, New York    
Units, each consisting of one share of Common Stock and one-fifth Warrant      
Document Information [Line Items]      
Title of 12(b) Security Units, each consisting of one share of Common Stock and one-fifth Warrant    
Trading Symbol GFOR.U    
Security Exchange Name NYSE    
Common Stock      
Document Information [Line Items]      
Title of 12(b) Security Common Stock, par value $0.0001 per share    
Trading Symbol GFOR    
Security Exchange Name NYSE    
Warrants to purchase one share of Common Stock      
Document Information [Line Items]      
Title of 12(b) Security Warrants to purchase one share of Common Stock    
Trading Symbol GFOR WS    
Security Exchange Name NYSE