Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

Document And Entity Information - USD ($)
12 Months Ended
Dec. 25, 2022
Feb. 17, 2023
Jun. 24, 2022
Document Information [Line Items]      
Entity Central Index Key 0001324272    
Entity Registrant Name Ruths Hospitality Group, Inc.    
Amendment Flag false    
Current Fiscal Year End Date --12-25    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2022    
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 25, 2022    
Document Transition Report false    
Entity File Number 000-51485    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 72-1060618    
Entity Address, Address Line One 1030 W. Canton Avenue, Suite 100    
Entity Address, City or Town Winter Park    
Entity Address, State or Province FL    
Entity Address, Postal Zip Code 32789    
City Area Code 407    
Local Phone Number 333-7440    
Title of 12(b) Security Common stock, par value $0.01 per share    
Trading Symbol RUTH    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 586,618,763
Entity Common Stock, Shares Outstanding   32,003,406  
Auditor Name KPMG LLP    
Auditor Location FL    
Auditor Firm ID 185