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COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2022
Commitments and Contingencies Disclosure [Abstract] |  |  |
Discount rate | 5.00% |  |
Product liability accruals | $ 2.2 | $ 3.0 |
Loss contingency, product recalls | 6.1 | 6.0 |
Loss contingency, receivable | 8.1 | 7.1 |
Representation and warranty insurance proceeds | $ 65.0 | $ 0.0 | $ 0.0

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