Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.10.0.1
Document and Entity Information - shares
 9 Months Ended
Jun. 30, 2018
Jul. 27, 2018
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
Trading Symbol CENT  
Entity Registrant Name CENTRAL GARDEN & PET CO  
Entity Central Index Key 0000887733  
Current Fiscal Year End Date --09-29  
Entity Filer Category Large Accelerated Filer  
Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   12,145,135
Class A Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   38,400,485
Class B Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   1,652,262