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Document and Entity Information
9 Months Ended
Jun. 29, 2013
Aug. 01, 2013
Document and Entity Information    
Entity Registrant Name GREEN MOUNTAIN COFFEE ROASTERS INC  
Entity Central Index Key 0000909954  
Document Type 10-Q  
Document Period End Date Jun. 29, 2013  
Amendment Flag false  
Current Fiscal Year End Date --09-28  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   150,739,161
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q3