ACQUISITIONS AND INVESTMENTS	6 Months Ended
ACQUISITIONS AND INVESTMENTS	Apr. 02, 2022
Business Combinations [Abstract]
ACQUISITIONS AND INVESTMENTS	ACQUISITIONS AND INVESTMENTS Cyco On April 28, 2022, the Company’s Hawthorne segment completed the acquisition of substantially all of the assets of S.J. Enterprises PTY LTD, d.b.a. Cyco, an Australia-based provider of premium nutrients, additives and growing media products for indoor growing, for a purchase price of $34.4 plus contingent consideration with a maximum payout of $10.0 based on the achievement of certain performance metrics through December 31, 2024. Prior to the transaction, the Company served as the exclusive distributor of Cyco’s products in the United States. Luxx Lighting On December 30, 2021, the Company’s Hawthorne segment completed the acquisition of substantially all of the assets of Luxx Lighting, Inc., a leading provider of lighting products for indoor growing. The purchase price was $213.2, a portion of which was paid by the issuance of 0.1 million of the common shares of Scotts Miracle-Gro (“Common Shares”), a non-cash investing and financing activity, with a fair value of $21.0 based on the share price at the time of payment. During the three months ended April 2, 2022, the Company identified quality issues with certain products sold prior to the closing of the acquisition and recorded an accrual for product return refund liabilities and warranty claims of $8.0, and an offsetting increase to goodwill. At April 2, 2022, the preliminary valuation of the acquired assets included (i) $36.4 of inventory and accounts receivable, (ii) $6.3 of current assets, (iii) $20.3 of current liabilities, (iv) $106.9 of finite-lived identifiable intangible assets and (v) $83.9 of tax-deductible goodwill. Identifiable intangible assets included tradenames, customer relationships and non-compete agreements with useful lives ranging between 5 and 25 years. The estimated fair values of the identifiable intangible assets were determined using an income-based approach, which includes market participant expectations of cash flows that an asset will generate over the remaining useful life discounted to present value using an appropriate discount rate. Certain estimated values for the acquisition, including goodwill, intangible assets and accruals for refund liabilities and warranty claims, are not yet finalized and are subject to revision as additional information becomes available and more detailed analysis is completed. True Liberty Bags On December 23, 2021, the Company’s Hawthorne segment completed the acquisition of substantially all of the assets of True Liberty Bags, a leading provider of liners and storage solutions to dry and cure plant products, for $10.1. The valuation of the acquired assets included (i) $1.1 of inventory, (ii) $5.8 of finite-lived identifiable intangible assets and (iii) $3.2 of tax-deductible goodwill. Identifiable intangible assets included tradenames and customer relationships with useful lives ranging between 15 and 20 years. The estimated fair values of the identifiable intangible assets were determined using an income-based approach, which includes market participant expectations of cash flows that an asset will generate over the remaining useful life discounted to present value using an appropriate discount rate. Hydro-Logic On August 27, 2021, the Company’s Hawthorne segment completed the acquisition of substantially all of the assets of Hydro-Logic Purification Systems, Inc., a leading provider of products, accessories and systems for water filtration and purification, for $65.3. The valuation of the acquired assets included (i) $4.9 of inventory and accounts receivable, (ii) $1.6 of noncurrent assets, (iii) $2.4 of other liabilities, (iv) $23.1 of finite-lived identifiable intangible assets and (v) $38.1 of tax-deductible goodwill. Identifiable intangible assets included tradenames, customer relationships and non-compete agreements with useful lives ranging between 5 and 25 years. The estimated fair values of the identifiable intangible assets were determined using an income-based approach, which includes market participant expectations of cash flows that an asset will generate over the remaining useful life discounted to present value using an appropriate discount rate. The Hawthorne Collective On August 24, 2021, the Company’s newly formed subsidiary, The Hawthorne Collective, Inc. (“THC”), made its initial investment under the Company’s strategic minority non-equity investment initiative in the form of a $150.0 six-year convertible note issued to the Company by Toronto-based RIV Capital Inc. (“RIV Capital”) (CSE: RIV) (OTC: CNPOF), a cannabis investment and acquisition firm listed on the Canadian Securities Exchange. The note accrues interest at 2 percent annually for the first two years and provides additional follow-on investment rights. Accrued interest will be payable to THC at maturity or will be included in the conversion value of the note at the time of conversion. The conversion feature, which is based upon the RIV Capital closing stock price on August 9, 2021, would provide the Company with approximately 42 percent ownership of RIV Capital if it exercises the conversion feature. In connection with the Company’s investment, RIV Capital increased the size of its board of directors from four to seven members and added three nominees of the Company to the board of directors. On April 22, 2022, pursuant to its follow-on investment rights, the Company made an additional investment in RIV Capital in the form of a $25.0 convertible note. The note accrues interest at 2 percent annually for the first two years and matures on August 24, 2027. Accrued interest will be payable to THC at maturity or will be included in the conversion value of the note at the time of conversion. The conversion feature is based upon the RIV Capital closing stock price on March 29, 2022. Additionally, RIV Capital is expected to increase the size of its board of directors during fiscal 2022 from seven to nine members, which is expected to include four nominees of the Company. The Company will not have control of or an active day-to-day role in RIV Capital or any of the companies in which RIV Capital invests. RIV Capital has agreed to use the funds it receives from the Company for general corporate and other lawful purposes, which could include acquisitions, and has agreed that the funds will not be used in connection with or for any cannabis or cannabis-related operations in the U.S. unless and until such operations comply with all applicable U.S. federal laws. During the fourth quarter of fiscal 2021, THC made additional minority non-equity investments of $43.1 in other entities focused on branded cannabis and high quality genetics. These additional investments also include conversion features that would provide the Company with minority ownership interests if it exercises the conversion features, as well as restrictions that the funds will not be used in connection with or for any cannabis or cannabis-related operations in the U.S. unless and until such operations comply with all applicable U.S. federal laws. Rhizoflora On August 13, 2021, the Company’s Hawthorne segment completed the acquisition of substantially all of the assets of Rhizoflora, Inc., the manufacturer of terpene enhancing nutrient products Terpinator® and Purpinator®, for $33.7. The valuation of the acquired assets included (i) $0.6 of inventory, (ii) $10.9 of finite-lived identifiable intangible assets and (iii) $22.2 of tax-deductible goodwill. Identifiable intangible assets included tradenames, customer relationships and non-compete agreements with useful lives ranging between 5 and 25 years. The estimated fair values of the identifiable intangible assets were determined using an income-based approach, which includes market participant expectations of cash flows that an asset will generate over the remaining useful life discounted to present value using an appropriate discount rate. AeroGrow On November 11, 2020, the Company entered into an agreement and plan of merger to acquire the remaining outstanding shares of AeroGrow for cash consideration of $3.00 per share, or approximately $20.1. The merger closed on February 26, 2021. SMG Growing Media, Inc., a wholly-owned subsidiary of Scotts Miracle-Gro, was the holder of 80.5% of the outstanding shares of AeroGrow prior to the closing and now holds 100% of the outstanding shares of AeroGrow. The closing date carrying value of the noncontrolling interest was $6.7 and the $13.4 difference between the purchase price and carrying value was recognized in the “Common shares and capital in excess of $0.01 stated value per share” line within “Total equity” in the Condensed Consolidated Balance Sheets.