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Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Sep. 30, 2023
--- | --- | ---
Deferred income tax assets: |  |
Accrued expenses | $ 19.3 | $ 10.8
Deferred Tax Assets Leasing Liabilities | 7.5 | 6.4
Inventory reserves | 5.0 | 7.2
State net operating losses | 1.9 | 1.9
Federal net operating losses and credit carryovers | 15.9 | 16.2
Stock-based compensation | 4.3 | 3.9
Section 174 research and development capitalization | 23.1 | 15.6
All other | 5.3 | 4.4
Deferred income tax assets | 82.3 | 66.4
Valuation allowance | (18.0) | (15.1)
Total deferred income tax assets | 64.3 | 51.3
Deferred income tax liabilities: |  |
Intangible assets | 68.2 | 74.5
Lease assets | 6.7 | 5.9
Basis difference in foreign investment | 6.0 | 5.9
Pension | 3.0 | 1.3
Property, plant and equipment | 34.7 | 36.6
Other | 1.1 | 0.9
Total deferred income tax liabilities | 119.7 | 125.1
Net deferred income tax liabilities | $ 55.4 | $ 73.8

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