Annual report pursuant to Section 13 and 15(d)


Cover - USD ($)
$ in Millions
12 Months Ended
Dec. 27, 2020
Mar. 02, 2021
Jul. 12, 2020
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 27, 2020    
Current Fiscal Year End Date --12-27    
Entity File Number 001-34851    
Entity Registrant Name RED ROBIN GOURMET BURGERS, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 84-1573084    
Entity Address, Address Line One 6312 S Fiddler's Green Circle, Suite 200N    
Entity Address, City or Town Greenwood Village    
Entity Address, State or Province CO    
Entity Address, Postal Zip Code 80111    
City Area Code (303)    
Local Phone Number 846-6000    
Title of 12(b) Security Common Stock, $0.001 par value    
Trading Symbol RRGB    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Control Opinion true    
Entity Shell Company false    
Entity Central Index Key 0001171759    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Public Float     $ 130.4
Entity Common Stock, Shares Outstanding   15,574,647  
Entity Filer Category Accelerated Filer