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INCOME TAXES - Components of Deferred Income Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Sep. 30, 2023
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DEFERRED TAX ASSETS |  |
Lease liabilities | $ 67.6 | $ 70.0
Intangible assets | 62.2 | 79.2
Net operating loss carryovers | 56.4 | 67.3
Interest limitation carryforward | 55.9 | 35.9
Convertible debt investments | 43.6 | 33.4
Accrued liabilities | 43.2 | 48.7
Outside basis difference in equity investments | 23.1 | 10.4
Inventories | 16.1 | 26.1
Foreign tax credit carryovers | 15.2 | 16.3
Other | 22.4 | 23.8
Gross deferred tax assets | 405.7 | 411.1
Valuation allowance | (96.5) | (87.7)
Total deferred tax assets | 309.2 | 323.4
DEFERRED TAX LIABILITIES |  |
Lease right-of-use assets | (62.0) | (62.1)
Property, plant and equipment | (58.5) | (62.7)
Other | (4.4) | (9.9)
Total deferred tax liabilities | (124.9) | (134.7)
Net deferred tax asset | $ 184.3 | $ 188.7

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