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Cover - shares
 9 Months Ended
Sep. 30, 2025
Oct. 31, 2025
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2025  
Document Transition Report false  
Entity File Number 001-34611  
Entity Registrant Name CELSIUS HOLDINGS, INC.  
Entity Incorporation, State or Country Code NV  
Entity Tax Identification Number 20-2745790  
Entity Address, Address Line One 2381 NW Executive Center Drive  
Entity Address, City or Town Boca Raton  
Entity Address, State or Province FL  
Entity Address, Postal Zip Code 33431  
City Area Code (561)  
Local Phone Number 276-2239  
Title of 12(b) Security Common Stock, $0.001 par value per share  
Trading Symbol CELH  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   257,785,297
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2025  
Entity Central Index Key 0001341766  
Current Fiscal Year End Date --12-31  
Amendment Flag false