v3.25.2
Cover - shares
 3 Months Ended
Mar. 31, 2025
Jul. 16, 2025
Document Information Line Items    
Entity Registrant Name Corner Growth Acquisition Corp. 2  
Entity Central Index Key 0001847513  
Document Type 10-Q  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Small Business true  
Entity Shell Company true  
Entity Emerging Growth Company true  
Entity Current Reporting Status No  
Document Period End Date Mar. 31, 2025  
Entity Filer Category Non-accelerated Filer  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2025  
Entity Ex Transition Period false  
Entity Common Stock Shares Outstanding   4,927,561
Document Quarterly Report true  
Document Transition Report false  
Entity File Number 001-40510  
Entity Incorporation State Country Code E9  
Entity Tax Identification Number 98-1582723  
Entity Address Address Line 1 418 Broadway, #6592  
Entity Address Address Line 2 #6592  
Entity Address City Or Town Albany  
Entity Address State Or Province NY  
Entity Address Postal Zip Code 12207  
City Area Code 347  
Local Phone Number 268-7868  
Entity Interactive Data Current No  
Capital Units [Member]    
Document Information Line Items    
Security 12b Title Units, each consisting of one Class A ordinary share and one redeemable warrant  
Trading Symbol TRONU  
Class A Ordinary Share [Member]    
Document Information Line Items    
Security 12b Title Class A Ordinary Shares, par value $0.0001 per share  
Trading Symbol TRON  
Warrants [Member]    
Document Information Line Items    
Security 12b Title Redeemable warrants, each exercisable for one Class A ordinary share at an exercise price of $11.50  
Trading Symbol TRONW