v3.26.1
Cover - shares
 3 Months Ended
Mar. 31, 2026
Jun. 12, 2026
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Entity Interactive Data Current Yes  
Amendment Flag false  
Document Period End Date Mar. 31, 2026  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Entity Registrant Name Quantum Leap Acquisition Corp.  
Entity Central Index Key 0002102155  
Entity File Number 001-43262  
Entity Tax Identification Number 00-0000000  
Entity Incorporation, State or Country Code E9  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status No  
Entity Shell Company true  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Address, Address Line One Willow Workplace Menlo Park  
Entity Address, Address Line Two 80 Willow Road  
Entity Address, City or Town Menlo Park  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94025  
City Area Code (650)  
Local Phone Number 444-4105  
Units, each consisting of one Class A ordinary share and one redeemable warrant    
Document Information [Line Items]    
Title of 12(b) Security Units, each consisting of one Class A ordinary share and one redeemable warrant  
Trading Symbol QLEPU  
Security Exchange Name NYSE  
Class A ordinary shares, par value $0.0001 par value    
Document Information [Line Items]    
Title of 12(b) Security Class A ordinary shares, par value $0.0001 par value  
Trading Symbol QLEP  
Security Exchange Name NYSE  
Warrants, each exercisable for one Class A ordinary share, and the conversion of any working capital loans into equity, if elected by the Sponsor    
Document Information [Line Items]    
Title of 12(b) Security Warrants, each exercisable for one Class A ordinary share, and the conversion of any working capital loans into equity, if elected by the Sponsor  
Trading Symbol QLEPW  
Security Exchange Name NYSE  
Class A Ordinary Shares    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   21,527,946
Class B Ordinary Shares    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   6,325,000