Document and Entity Information Document - shares
9 Months Ended
Sep. 30, 2015
Nov. 13, 2015
Entity Information [Line Items]    
Entity registrant name Blue Buffalo Pet Products, Inc.  
Entity central index key 0001609989  
Current fiscal year end date --12-31  
Entity filer category Non-accelerated Filer  
Document type 10-Q  
Document period end date Sep. 30, 2015  
Document fiscal year focus 2015  
Document fiscal period focus Q3  
Amendment flag false  
Entity common stock, shares outstanding   196,162,518