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INCOME TAXES - Components of Deferred Income Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Sep. 30, 2024
--- | --- | ---
DEFERRED TAX ASSETS |  |
Lease liabilities | $ 69.4 | $ 67.6
Intangible assets | 13.6 | 62.2
Net operating loss carryovers | 39.6 | 56.4
Interest limitation carryforward | 59.6 | 55.9
Convertible debt investments | 4.7 | 43.6
Accrued liabilities | 43.8 | 43.2
Outside basis difference in equity investments | 62.7 | 23.1
Inventories | 13.4 | 16.1
Foreign tax credit carryovers | 13.7 | 15.2
Other | 22.2 | 22.4
Gross deferred tax assets | 342.7 | 405.7
Valuation allowance | (96.8) | (96.5)
Total deferred tax assets | 245.9 | 309.2
DEFERRED TAX LIABILITIES |  |
Lease right-of-use assets | (65.0) | (62.0)
Property, plant and equipment | (62.3) | (58.5)
Other | (5.1) | (4.4)
Total deferred tax liabilities | (132.4) | (124.9)
Net deferred tax asset | $ 113.5 | $ 184.3

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