XML 38 R1.htm IDEA: XBRL DOCUMENT v3.3.0.814
Document and Entity Information - shares
 9 Months Ended
Sep. 29, 2015
Oct. 28, 2015
Document and Entity Information    
Entity Registrant Name Texas Roadhouse, Inc.  
Entity Central Index Key 0001289460  
Document Type 10-Q  
Document Period End Date Sep. 29, 2015  
Amendment Flag false  
Current Fiscal Year End Date --12-29  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   70,144,492
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q3