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Other Expenses (Tables) | 12 Months Ended
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Sep. 30, 2023
Other Expenses [Abstract] |
Schedule of Other Operating Cost and Expense, by Component | Other expenses consisted of the following, for the periods indicated.
| Year Ended September 30,
(in millions) | 2023 |  | 2022 |  | 2021
Non-income taxes | $ | 16.8 |  |  | $ | 13.5 |  |  | $ | 14.8 |
Insurance | 11.1 |  |  | 10.8 |  |  | 7.1 |
Employee related expenses | 10.1 |  |  | 9.6 |  |  | 7.0 |
Other direct business expenses | 14.8 |  |  | 10.0 |  |  | 6.3 |
Membership fees | 3.4 |  |  | 3.3 |  |  | 2.8 |
Director and public company expenses | 2.3 |  |  | 1.8 |  |  | 1.5 |
Office expenses | 1.9 |  |  | 1.7 |  |  | 1.3 |
Other expenses | 6.0 |  |  | 9.9 |  |  | 5.5 |
Total other expenses | $ | 66.4 |  |  | $ | 60.6 |  |  | $ | 46.3 |

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- Definition Tabular disclosure of each detailed component of other operating costs and expenses that are applicable to sales and revenues, but not included in the cost of sales in the income statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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