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GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jul. 01, 2023 | Jul. 02, 2022 | Jul. 01, 2023 | Jul. 02, 2022 | Sep. 30, 2022
Goodwill [Line Items] |  |  |  |  |
Goodwill | $ 254.5 | $ 254.7 | $ 254.5 | $ 254.7 | $ 254.0
Tradenames |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Asset impairment charges |  | 69.0 |  | 69.0 |
Customer accounts |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Asset impairment charges |  | 41.0 |  | 41.0 |
Hawthorne |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Restructuring charges and adjustments |  |  | 207.9 |  |
Goodwill |  | 0.0 |  | 0.0 |
Cost of sales—impairment, restructuring and other | Hawthorne |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Restructuring charges and adjustments | $ 25.7 | 10.4 | $ 152.6 | 15.6 |
Goodwill Impairment | Hawthorne |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Restructuring charges and adjustments |  | $ 522.4 |  | $ 522.4 |

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