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ACQUISITIONS AND INVESTMENTS - AeroGrow (Details) - USD ($) $ / shares in Units, $ in Millions | Feb. 26, 2021 | Nov. 11, 2020 | Sep. 30, 2022 | Sep. 30, 2021
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Business Acquisition [Line Items] |  |  |  |
Common shares, stated value per share (USD per share) |  |  | $ 0.01 | $ 0.01
AeroGrow |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Noncontrolling interest, carrying value | $ 6.7 |  |  |
Difference between purchase price and carrying value recognized in Common shares and capital in excess of par | $ 13.4 |  |  |
Common shares, stated value per share (USD per share) |  |  | $ 0.01 | $ 0.01
SMG Growing Media, Inc. | AeroGrow |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Percent ownership | 100.00% | 80.50% |  |
AeroGrow |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash consideration per share (USD per share) |  | $ 3.00 |  |
Cash consideration |  | $ 20.1 |  |

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