v3.10.0.1
Document and Entity Information - shares
9 Months Ended
Sep. 25, 2018
Oct. 29, 2018
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 25, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
Trading Symbol HABT  
Entity Registrant Name Habit Restaurants, Inc.  
Entity Central Index Key 0001617977  
Current Fiscal Year End Date --12-25  
Entity Filer Category Accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period true  
Class A Common Stock [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   20,651,872
Class B Common Stock [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   5,397,396