| Document and Entity Information | Aug. 02, 2023 |
| Entity Listings [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 02, 2023 |
| Entity Registrant Name | Central Garden & Pet Company |
| Entity Incorporation, State or 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 |
| Entity Central Index Key | 0000887733 |
| Common Stock [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | CENT |
| Security Exchange Name | NASDAQ |
| Class A Common Stock [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Class A Common Stock |
| Trading Symbol | CENTA |
| Security Exchange Name | NASDAQ |
