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Document And Entity Information (USD $)
 6 Months Ended
Jun. 29, 2013
Jul. 27, 2013
Jun. 29, 2012
Entity Information [Line Items]      
Entity Registrant Name TRACTOR SUPPLY CO /DE/    
Entity Central Index Key 0000916365    
Current Fiscal Year End Date --12-28    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Large Accelerated Filer    
Entity Public Float     $ 5,800,000,000
Entity Common Stock, Shares Outstanding   69,808,880  
Document Fiscal Year Focus 2013    
Document Fiscal Period Focus Q2    
Document Type 10-Q    
Amendment Flag false    
Document Period End Date Jun. 29, 2013