Basis of Presentation (Policies)	3 Months Ended
Basis of Presentation (Policies)	Dec. 28, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The condensed consolidated balance sheets of Central Garden & Pet Company and subsidiaries (the “Company” or “Central”) as of December 28, 2024 and December 30, 2023, the condensed consolidated statements of operations, the condensed consolidated statements of comprehensive income and the condensed consolidated statements of cash flows for the three months ended December 28, 2024 and December 30, 2023 have been prepared by the Company, without audit. In the opinion of management, the interim financial statements include all normal recurring adjustments necessary for a fair statement of the results for the interim periods presented. For the Company’s foreign businesses in the United Kingdom and Canada, the local currency is the functional currency. Assets and liabilities are translated using the exchange rate in effect at the balance sheet date. Income and expenses are translated at the average exchange rate for the period. Deferred taxes are not provided on translation gains and losses because the Company expects earnings of its foreign subsidiaries to be permanently reinvested. Transaction gains and losses are included in results of operations. Due to the seasonal nature of the Company’s garden business, the results of operations for the three months ended December 28, 2024 are not necessarily indicative of the operating results that may be expected for the entire fiscal year. These interim financial statements should be read in conjunction with the annual audited financial statements, accounting policies and financial notes thereto, included in the Company’s Annual Report on Form 10-K for the fiscal year ended September 28, 2024, which has previously been filed with the Securities and Exchange Commission. The September 28, 2024 balance sheet presented herein was derived from the audited financial statements.
Noncontrolling Interest	Noncontrolling Interest Noncontrolling interest in the Company’s condensed consolidated financial statements represents the 20% interest not owned by Central in a consolidated subsidiary. Since the Company controls this subsidiary, its financial statements are consolidated with those of the Company, and the noncontrolling owner’s 20% share of the subsidiary’s net assets and results of operations is deducted and reported as noncontrolling interest on the condensed consolidated balance sheets and as net income attributable to noncontrolling interest in the condensed consolidated statements of operations.
Credit Risk	Credit Risk Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents. The Company manages the credit risk associated with cash equivalents by investing with high-quality institutions. The Company maintains cash accounts that exceed federally insured limits. The Company has not experienced any losses from maintaining cash accounts in excess of such limits. Management believes that it is not exposed to any significant risks on its cash and cash equivalent accounts.
Cash, Cash Equivalents and Restricted Cash	Cash, Cash Equivalents and Restricted Cash The Company considers cash and all highly liquid investments with an original maturity of three months or less at date of purchase to be cash and cash equivalents. Restricted cash includes cash and highly liquid instruments that are used as collateral for stand-alone letter of credit agreements related to normal business transactions. These agreements require the Company to maintain specified amounts of cash as collateral in segregated accounts to support the letters of credit issued thereunder, which will affect the amount of cash the Company has available for other uses.
Allowance for Credit Losses and Customer Allowances	Allowance for Credit Losses and Customer Allowances The Company’s trade accounts receivable are recorded at net realizable value, which includes an allowance for estimated credit losses, as well as allowances for contractual customer deductions accounted for as variable consideration. The Company maintains an allowance for credit losses related to its trade accounts receivable associated with future expected credit losses resulting from the inability of its customers to make required payments. The Company estimates the allowance based upon historical bad debts, current customer receivable balances and the customer’s financial condition. The allowance is adjusted to reflect changes in current and forecasted macroeconomic conditions. The Company’s estimate of credit losses includes expected current and future economic and market conditions.
Revenue Recognition	Revenue Recognition Revenue Recognition and Nature of Products and Services The Company manufactures, markets and distributes a wide variety of pet and garden products to wholesalers, distributors and retailers, primarily in the United States. The majority of the Company’s revenue is generated from the sale of finished pet and garden products. The Company also recognizes a minor amount of non-product revenue (approximately one percent of consolidated net sales) comprising third-party logistics services, merchandising services and royalty income from sales-based licensing arrangements. Product and non-product revenue is recognized when performance obligations under the terms of the contracts with customers are satisfied. The Company recognizes product revenue when control over the finished goods transfers to its customers, which generally occurs upon shipment to, or receipt at, customers’ locations, as determined by the specific terms of the contract, and when control over the finished goods transfers to retail consumers in consignment arrangements. These revenue arrangements generally have single performance obligations. Non-product revenue is recognized as the services are provided to the customer in the case of third-party logistics services and merchandising services, or as third-party licensee sales occur for royalty income. Revenue, which includes shipping and handling charges billed to the customer, is reported net of variable consideration and consideration payable to our customers, including applicable discounts, returns, allowances, trade promotion, unsaleable product, consumer coupon redemption and rebates. Shipping and handling costs that occur before the customer obtains control of the goods are deemed to be fulfillment activities and are accounted for as fulfillment costs. Key sales terms are established on a frequent basis such that most customer arrangements and related incentives have a one year or shorter duration. As such, the Company does not capitalize contract inception costs. The Company generally does not have unbilled receivables at the end of a period. Deferred revenues are not material and primarily include advance payments for services that have yet to be rendered. The Company does not receive noncash consideration for the sale of goods. Amounts billed and due from our customers are classified as receivables and require payment on a short-term basis; therefore, the Company does not have any significant financing components. Sales Incentives and Other Promotional Programs The Company routinely offers sales incentives and discounts through various regional and national programs to its customers and consumers. These programs include product discounts or allowances, product rebates, product returns, one-time or ongoing trade-promotion programs with customers and consumer coupon programs that require the Company to estimate and accrue the expected costs of such programs. The costs associated with these activities are accounted for as reductions to the transaction price of the Company’s products and are, therefore, recorded as reductions to gross sales at the time of sale. The Company bases its estimates of incentive costs on historical trend experience with similar programs, actual incentive terms per customer contractual obligations and expected levels of performance of trade promotions, utilizing customer and sales organization inputs. The Company maintains liabilities at the end of each period for the estimated incentive costs incurred but unpaid for these programs. Differences between estimated and actual incentive costs are generally not material and are recognized in earnings in the period such differences are determined. Reserves for product returns, accrued rebates and promotional accruals are included in the condensed consolidated balance sheets as part of accrued expenses, and the value of inventory associated with reserves for sales returns is included within prepaid expenses and other current assets on the condensed consolidated balance sheets.
Leases	Leases The Company determines whether an arrangement contains a lease at inception by determining if the contract conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration and other facts and circumstances. Long-term operating lease right-of-use ("ROU") assets and current and long-term operating lease liabilities are presented separately in the condensed consolidated balance sheets. Finance lease ROU assets are presented in property, plant and equipment, net, and the related finance liabilities are presented with current and long-term debt in the condensed consolidated balance sheets. Lease ROU assets represent the Company's right to use an underlying asset for the lease term, and lease liabilities represent the Company's obligation to make lease payments arising from the lease. ROU assets are calculated based on the lease liability adjusted for any lease payments paid to the lessor at or before the commencement date and excludes any lease incentives received from the lessor. Lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term. The lease term may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. As the Company's leases typically do not contain a readily determinable implicit rate, the Company determines the present value of the lease liability using its incremental borrowing rate at the lease commencement date based on the lease term on a collateralized basis. Variable lease payments are expensed as incurred and include certain non-lease components, such as maintenance and other services provided by the lessor, and other charges included in the lease, as applicable. Non-lease components and the lease components to which they relate are accounted for as a single lease component, as the Company has elected to combine lease and non-lease components for all classes of underlying assets. Amortization of ROU lease assets is calculated on a straight-line basis over the lease term with the expense recorded in cost of sales or selling, general and administrative expenses, depending on the nature of the leased item. Interest expense is recorded over the lease term and is recorded in interest expense (based on a front-loaded interest expense pattern) for finance leases and is recorded in cost of sales or selling, general and administrative expenses (on a straight-line basis) for operating leases. All operating lease cash payments and interest on finance leases are recorded within cash flows from operating activities and all finance lease principal payments are recorded within cash flows from financing activities in the condensed consolidated statements of cash flows.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Recently Issued and Adopted Accounting Updates There were no recently adopted accounting pronouncements that had a material impact on the Company's condensed consolidated financial statements. Accounting Standards Not Yet Adopted Segment Reporting In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. This ASU requires enhanced disclosures about significant segment expenses regularly provided to the chief operating decision maker that are included within each reported measure of segment profit or loss, and also requires all annual disclosures currently required by Topic 280 to be included in interim periods. ASU No. 2023-07 is to be applied retrospectively for all periods presented in the financial statements and is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the impact that the adoption of this guidance will have on the Company’s disclosures. Income Taxes In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. This ASU primarily requires enhanced disclosures and disaggregation of income tax information by jurisdiction in the annual income tax reconciliation and quantitative and qualitative disclosures regarding income taxes paid. ASU No. 2023-09 is to be applied prospectively, with the option to apply the standard retrospectively, effective for fiscal years beginning after December 15, 2024. The Company is currently evaluating the impact that the adoption of this guidance will have on the Company’s disclosures.
Fair Value Measurement	Fair Value Measurements Generally accepted accounting principles require financial assets and liabilities to be categorized based on the inputs used to calculate their fair values as follows: Level 1 - Quoted prices in active markets for identical assets or liabilities. Level 2 - Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 3 - Unobservable inputs for the asset or liability, which reflect the Company’s own assumptions about the assumptions that market participants would use in pricing the asset or liability (including assumptions about risk). The Company’s financial instruments include cash and equivalents, short-term investments, accounts receivable and payable, short- term borrowings, and accrued liabilities. The carrying amount of these instruments approximates fair value because of their short-term nature.
Goodwill	Goodwill The Company tests goodwill for impairment annually (as of the first day of the fourth fiscal quarter), or whenever events occur or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount, by first assessing qualitative factors to determine whether it is more likely than not the fair value of the reporting unit is less than its carrying amount. The qualitative assessment evaluates factors including macroeconomic conditions, industry-specific and company-specific considerations, legal and regulatory environments and historical performance. If it is determined that it is more likely than not that the fair value of the reporting unit is greater than its carrying amount, it is unnecessary to perform the quantitative goodwill impairment test. If it is determined that it is more likely than not that the fair value of the reporting unit is less than its carrying amount, the quantitative test is performed to identify potential goodwill impairment. Based on certain circumstances, the Company may elect to bypass the qualitative assessment and proceed directly to performing the quantitative goodwill impairment test, which compares the estimated fair value of our reporting units to their related carrying values, including goodwill. Impairment is indicated if the estimated fair value of the reporting unit is less than its carrying value, and an impairment charge is recognized for the differential. The Company’s goodwill impairment analysis also includes a comparison of the aggregate estimated fair value of its two reporting units to the Company’s total market capitalization. No impairment of goodwill was recorded for the three months ended December 28, 2024 and December 30, 2023.