v3.19.3
Document And Entity Information - shares
9 Months Ended
Sep. 30, 2019
Nov. 04, 2019
Document And Entity Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Entity Registrant Name WAITR HOLDINGS INC.  
Entity Central Index Key 0001653247  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer  
Entity Emerging Growth Company true  
Entity Small Business true  
Entity Ex Transition Period false  
Trading Symbol WTRH  
Entity Common Stock, Shares Outstanding   76,534,253
Entity Current Reporting Status Yes  
Entity Shell Company false  
Entity File Number 001-37788  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 26-3828008  
Entity Address, Address Line One 214 Jefferson Street  
Entity Address, Address Line Two Suite 200  
Entity Address, City or Town Lafayette  
Entity Address, State or Province LA  
Entity Address, Postal Zip Code 70501  
City Area Code 337  
Local Phone Number 534-6881  
Entity Interactive Data Current Yes  
Title of 12(b) Security Common Stock, Par Value $0.0001 Per Share  
Security Exchange Name NASDAQ  
Document Quarterly Report true  
Document Transition Report false  
Former Address    
Document And Entity Information [Line Items]    
Entity Address, Address Line One 844 Ryan Street  
Entity Address, Address Line Two Suite 300  
Entity Address, City or Town Lake Charles  
Entity Address, State or Province LA  
Entity Address, Postal Zip Code 70601