Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.23.1
Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2022
Mar. 16, 2023
Jun. 30, 2022
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2022    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Document Annual Report true    
Document Transition Report false    
Entity Registrant Name GENERATION ASIA I ACQUISITION LIMITED    
Entity Central Index Key 0001852061    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer No    
Entity Public Float     $ 214,914,000
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Shell Company true    
Entity Interactive Data Current Yes    
Entity File Number 001-41239    
Entity Tax Identification Number 98-1588665    
Entity Address, Address Line One Boundary Hall    
Entity Address, Address Line Two Cricket Square    
Entity Address, City or Town Grand Cayman    
Entity Address, Country KY    
Entity Address, Postal Zip Code KY1-1102    
City Area Code 345    
Local Phone Number 814-5580    
Entity Incorporation, State or Country Code E9    
ICFR Auditor Attestation Flag false    
Auditor Name Marcum Asia CPAs LLP    
Auditor Location New York, NY    
Auditor Firm ID 5395    
One Class A Ordinary Share and One-half of One Redeemable Warrant      
Document Information [Line Items]      
Title of 12(b) Security Units, each consisting of one Class A ordinary share, $0.0001 par value, and one-half of one redeemable warrant    
Trading Symbol GAQ.U    
Security Exchange Name NYSE    
Class A Ordinary Shares      
Document Information [Line Items]      
Title of 12(b) Security Class A ordinary shares    
Trading Symbol GAQ    
Security Exchange Name NYSE    
Entity Common Stock, Shares Outstanding   21,930,000  
Redeemable Warrants Included as Part of Units, each Whole Warrant Exercisable for One Class A Ordinary Share at an Exercise Price of $11.50      
Document Information [Line Items]      
Title of 12(b) Security Redeemable Warrants included as part of the units, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50    
Trading Symbol GAQWS    
Security Exchange Name NYSE    
Class B Ordinary Shares      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   7,482,500