v3.19.1
Document and Entity Information - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Mar. 25, 2019
Jul. 19, 2018
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2018    
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY    
Trading Symbol TLRY    
Entity Registrant Name TILRAY, INC.    
Entity Central Index Key 0001731348    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Emerging Growth Company true    
Entity Small Business true    
Entity Ex Transition Period false    
Entity Shell Company false    
Entity Public Float     $ 176
Class 1 Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   16,666,667  
Class 2 Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   80,125,538