Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.3.1.900
Document and Entity Information - USD ($)
 12 Months Ended
Sep. 26, 2015
Nov. 30, 2015
Mar. 28, 2015
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Sep. 26, 2015    
Document Fiscal Year Focus 2015    
Document Fiscal Period Focus FY    
Trading Symbol CENT    
Entity Registrant Name CENTRAL GARDEN & PET CO    
Entity Central Index Key 0000887733    
Current Fiscal Year End Date --09-26    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Accelerated Filer    
Entity Public Float     $ 100,400,000
Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   11,908,317  
Class A Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   36,489,570  
Entity Public Float     346,600,000
Class B Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   1,652,262  
Entity Public Float     $ 63,000.0