Document and Entity Information
Feb. 10, 2020
Document And Entity Information [Line Items]  
Entity Registrant Name CENTRAL GARDEN & PET CO
Amendment Flag false
Entity Central Index Key 0000887733
Document Type 8-K
Document Period End Date Feb. 10, 2020
Entity Incorporation State Country Code DE
Entity File Number 001-33268
Entity Tax Identification Number 68-0275553
Entity Address, Address Line One 1340 Treat Boulevard
Entity Address, Address Line Two Suite 600
Entity Address, City or Town Walnut Creek
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94597
City Area Code (925)
Local Phone Number 948-4000
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Common Stock
Trading Symbol CENT
Security Exchange Name NASDAQ
Common Class A [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Class A Common Stock
Trading Symbol CENTA
Security Exchange Name NASDAQ