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STOCK-BASED COMPENSATION - Summary of Stock Option/Warrant Activity (Details) - $ / shares
$ / shares in Millions
 12 Months Ended
Nov. 28, 2022
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Cboe Digital Restricted Common Units        
Number of shares        
Non vested RSAs (in shares)   0 185 185
Weighted average exercise price (in USD per share)   $ 0.0 $ 0.3 $ 0.3
Granted (in shares) 185 0 0  
Granted (in USD per share)   $ 0.0 $ 0.0  
Vested (in shares)   0 0  
Vested (in USD per share)   $ 0.0 $ 0.0  
Forfeited (in shares)   (185)    
Forfeited (in USD per share)   $ 0.3    
Cboe Digital Warrant Units        
Number of shares        
Non vested RSAs (in shares)   0 80 80
Weighted average exercise price (in USD per share)     $ 0.2 $ 0.2
Granted (in shares)   0 0  
Vested (in shares)   0 (40)  
Vested (in USD per share)     $ 0.2  
Outstanding and exercisable (in shares)   0 40  
Outstanding and exercisable (in USD per share)     $ 0.2  
Forfeited (in shares)   (80)    
Forfeited (in USD per share)   $ 0.2