v3.26.1
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Mar. 31, 2026
Jun. 30, 2025
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Amendment Flag false    
Document Period End Date Dec. 31, 2025    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Entity Registrant Name TLGY Acquisition Corporation    
Entity Central Index Key 0001879814    
Entity File Number 001-41101    
Entity Tax Identification Number 98-1603634    
Entity Incorporation, State or Country Code E9    
Current Fiscal Year End Date --12-31    
Entity Address, Address Line One 4001 Kennett Pike, Suite 302    
Entity Address, City or Town Wilmington    
Entity Address, Postal Zip Code 19807    
Entity Address, State or Province DE    
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    
City Area Code 1    
Local Phone Number 302-803-6849    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Public Float     $ 6.5
Document Financial Statement Error Correction [Flag] false    
ICFR Auditor Attestation Flag false    
Documents Incorporated by Reference [Text Block] None    
Class A Ordinary Shares      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   5,834,587  
Class B Ordinary Shares      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   105,000