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Pension & Postretirement Plans (Tables) | 9 Months Ended
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Jun. 30, 2023
Retirement Benefits [Abstract] |
Schedule of Pension and Postretirement Plan Expenses | Total periodic pension and postretirement (income) expense is summarized below:
| Three Months Ended June 30, |  | Nine Months Ended June 30,
|  | 2022 |  |  |  | 2023 |  |  |  | 2022 |  |  |  | 2023 |
Service cost |  | $ | 19 |  |  |  | 12 |  |  |  | $ | 57 |  |  |  | 36 |
Interest cost |  | 34 |  |  |  | 54 |  |  |  | 102 |  |  |  | 162 |
Expected return on plan assets |  | (78) |  |  |  | (71) |  |  |  | (234) |  |  |  | (213) |
Net amortization |  | 23 |  |  |  | (18) |  |  |  | 69 |  |  |  | (58) |
Total |  | $ | (2) |  |  |  | (23) |  |  |  | $ | (6) |  |  |  | (73) |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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