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v3.24.3

Supplemental Statement of Operations Information - Components (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2022
Debt Instrument [Line Items] |  |  |
Research and Development Expense | $ 20.5 | $ 25.9 | $ 24.5
Advertising Expense | 5.8 | 4.7 | 5.5
Amortization of Debt Issuance Costs | 1.0 | 1.0 | 1.0
Interest Costs Capitalized | (0.1) | (1.6) | (2.6)
Interest Expense, Other | 1.7 | 0.1 | 0.3
Interest Expense, Operating and Nonoperating | 21.5 | 18.4 | 17.6
Interest Income, Other | (8.8) | (3.7) | (0.7)
Interest Income (Expense), Operating | (12.7) | (14.7) | (16.9)
4.0% Senior Notes |  |  |
Debt Instrument [Line Items] |  |  |
Interest Expense, Debt | 18.0 | 18.0 | 18.0
ABL Agreement |  |  |
Debt Instrument [Line Items] |  |  |
Interest Expense, Debt | $ 0.9 | $ 0.9 | $ 0.9

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