v3.26.1
Document And Entity Information
Mar. 27, 2026
Document Information Line Items  
Entity Central Index Key 0002115404
Document Type S-1
Entity Registrant Name Collective Acquisition Corp. II
Entity Incorporation, State or Country Code E9
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company true
Entity Ex Transition Period false
Amendment Flag false