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SEGMENT INFORMATION - Net Sales, Profit (Loss), and Assets by Segment (Details) $ in Millions | 3 Months Ended
--- | ---
Dec. 28, 2024 USD ($) segment | Dec. 30, 2023 USD ($)
Segment Reporting [Abstract] |  |
Number of reportable segments | segment | 3 |
Segment Reporting Information [Line Items] |  |
Net sales | $ 416.8 | $ 410.4
Impairment, restructuring and other | (16.5) | 7.1
Equity in loss of unconsolidated affiliates | (9.9) | (22.5)
Interest expense | (33.7) | (42.8)
Other non-operating expense, net | (1.3) | (1.6)
Continuing Operations |  |
Segment Reporting Information [Line Items] |  |
Segment profit (loss) | (95.9) | (114.2)
Intangible asset amortization | (3.1) | (4.0)
Impairment, restructuring and other | (21.7) | 12.9
Equity in loss of unconsolidated affiliates | (9.9) | (22.5)
Interest expense | (33.7) | (42.8)
Other non-operating expense, net | (1.3) | (1.6)
Continuing Operations | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Segment profit (loss) | 8.6 | (30.2)
Continuing Operations | Corporate |  |
Segment Reporting Information [Line Items] |  |
Segment profit (loss) | (34.8) | (26.0)
U.S. Consumer |  |
Segment Reporting Information [Line Items] |  |
Net sales | 340.9 | 306.7
U.S. Consumer | Continuing Operations | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Segment profit (loss) | 10.0 | (15.5)
Hawthorne |  |
Segment Reporting Information [Line Items] |  |
Net sales | 52.1 | 80.1
Hawthorne | Continuing Operations | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Segment profit (loss) | 1.7 | (9.7)
Other |  |
Segment Reporting Information [Line Items] |  |
Net sales | 23.8 | 23.6
Other | Continuing Operations | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Segment profit (loss) | $ (3.1) | $ (5.0)

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