XML 22 R1.htm IDEA: XBRL DOCUMENT v3.8.0.1
Document and Entity Information - USD ($)
 12 Months Ended
Dec. 26, 2017
Feb. 14, 2018
Jun. 27, 2017
Document and Entity Information      
Entity Registrant Name Texas Roadhouse, Inc.    
Entity Central Index Key 0001289460    
Document Type 10-K    
Document Period End Date Dec. 26, 2017    
Amendment Flag false    
Current Fiscal Year End Date --12-26    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Large Accelerated Filer    
Entity Public Float     $ 3,390,987,770
Entity Common Stock, Shares Outstanding   71,355,927  
Document Fiscal Year Focus 2017    
Document Fiscal Period Focus FY