Document and Entity Information Document - shares
3 Months Ended
Mar. 30, 2019
Jun. 07, 2019
Document and Entity Information [Abstract]    
Entity Registrant Name Beyond Meat, Inc.  
Entity Central Index Key 0001655210  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Entity Emerging Growth Company true  
Entity Small Business false  
Entity Ex Transition Period false  
Document Type 10-Q  
Document Period End Date Mar. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q1  
Entity Current Reporting Status No  
Entity Shell Company false  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   60,122,797