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Borrowing Arrangements (Tables) | 9 Months Ended
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Jun. 30, 2023
Long-Term Debt and Lease Obligation [Abstract] |
Components of Long-Term Debt | The components of our long-term debt are as follows:
| June 30, |  | September 30,
| 2023 |  | 2022
| (in millions)
4.0% Senior Notes | $ | 450.0 |  |  | $ | 450.0 |
Finance leases | 1.6 |  |  | 1.6 |
Total borrowings | 451.6 |  |  | 451.6 |
Less: deferred financing costs | 4.1 |  |  | 4.7 |
Less: current portion of long-term debt | 0.8 |  |  | 0.8 |
Long-term debt | $ | 446.7 |  |  | $ | 446.1 |

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