v3.26.1
NOTES RECEIVABLE (Details) - Secured Promissory Note - USD ($)
$ in Millions
12 Months Ended
Dec. 09, 2024
Mar. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Greenbrook TMS Inc        
NOTES RECEIVABLE        
Principal amount of notes receivable   $ 6.0    
Term of notes receivable   4 years    
Investment, Variable Interest Rate, Type [Extensible Enumeration]   us-gaap:SecuredOvernightFinancingRateSofrMember    
Interest rate (as a percent)   7.65%    
Loan receivable forgiven by the entity $ 3.6      
Success TMS | Other income, net        
NOTES RECEIVABLE        
Interest income recognized     $ 0.5 $ 0.6