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Retirement Benefits (Tables) | 9 Months Ended
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Jun. 30, 2024
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Amount of Expense Associated with All Defined Contribution Plans | The amount of expense associated with all defined contribution plans was as follows:
|  | Three Months Ended June 30, |  |  | Nine Months Ended June 30, |
|  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Company costs |  | $ | 14,020 |  |  | $ | 11,602 |  |  | $ | 38,097 |  |  | $ | 33,542 |
Schedule of Estimated Remaining Cash Contributions | Woodward estimates its remaining cash contributions in fiscal year 2024 will be as follows:
Retirement pension benefits: |  |  |
United States |  | $ | — |
United Kingdom |  |  | 414 |
Japan |  |  | — |
Germany |  |  | 320 |
Other postretirement benefits |  |  | 1,442 |
Defined Benefit Pension Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Net Periodic Benefit Costs | The components of the net periodic retirement pension costs recognized are as follows:
|  | Three Months Ended June 30, |
|  | United States |  |  | Other Countries |  |  | Total |
|  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Service cost |  | $ | 193 |  |  | $ | 223 |  |  | $ | 307 |  |  | $ | 344 |  |  | $ | 500 |  |  | $ | 567 |
Interest cost |  |  | 1,899 |  |  |  | 1,824 |  |  |  | 799 |  |  |  | 805 |  |  |  | 2,698 |  |  |  | 2,629 |
Expected return on plan assets |  |  | (2,271 | ) |  |  | (2,074 | ) |  |  | (596 | ) |  |  | (586 | ) |  |  | (2,867 | ) |  |  | (2,660 | )
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net actuarial loss (gain) |  |  | 57 |  |  |  | 73 |  |  |  | (168 | ) |  |  | (161 | ) |  |  | (111 | ) |  |  | (88 | )
Prior service cost |  |  | 174 |  |  |  | 174 |  |  |  | 6 |  |  |  | 5 |  |  |  | 180 |  |  |  | 179 |
Net periodic retirement pension cost |  | $ | 52 |  |  | $ | 220 |  |  | $ | 348 |  |  | $ | 407 |  |  | $ | 400 |  |  | $ | 627 |
Contributions paid |  | $ | — |  |  | $ | — |  |  | $ | 315 |  |  | $ | 470 |  |  | $ | 315 |  |  | $ | 470 |
|  | Nine Months Ended June 30, |
|  | United States |  |  | Other Countries |  |  | Total |
|  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Service cost |  | $ | 581 |  |  | $ | 670 |  |  | $ | 928 |  |  | $ | 996 |  |  | $ | 1,509 |  |  | $ | 1,666 |
Interest cost |  |  | 5,698 |  |  |  | 5,473 |  |  |  | 2,395 |  |  |  | 2,333 |  |  |  | 8,093 |  |  |  | 7,806 |
Expected return on plan assets |  |  | (6,813 | ) |  |  | (6,223 | ) |  |  | (1,790 | ) |  |  | (1,710 | ) |  |  | (8,603 | ) |  |  | (7,933 | )
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net actuarial loss (gain) |  |  | 170 |  |  |  | 219 |  |  |  | (507 | ) |  |  | (462 | ) |  |  | (337 | ) |  |  | (243 | )
Prior service cost |  |  | 523 |  |  |  | 523 |  |  |  | 17 |  |  |  | 16 |  |  |  | 540 |  |  |  | 539 |
Net periodic retirement pension cost |  | $ | 159 |  |  | $ | 662 |  |  | $ | 1,043 |  |  | $ | 1,173 |  |  | $ | 1,202 |  |  | $ | 1,835 |
Contributions paid |  | $ | — |  |  | $ | — |  |  | $ | 1,654 |  |  | $ | 1,763 |  |  | $ | 1,654 |  |  | $ | 1,763 |
Other Postretirement Benefit Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Net Periodic Benefit Costs | The components of the net periodic other postretirement benefit costs recognized are as follows:
|  | Three Months Ended June 30, |  |  | Nine Months Ended June 30, |
|  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Service cost |  | $ | — |  |  | $ | 1 |  |  | $ | — |  |  | $ | 1 |
Interest cost |  |  | 226 |  |  |  | 226 |  |  |  | 677 |  |  |  | 678 |
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |
Net actuarial gain |  |  | (139 | ) |  |  | (124 | ) |  |  | (417 | ) |  |  | (372 | )
Net periodic other postretirement cost |  | $ | 87 |  |  | $ | 103 |  |  | $ | 260 |  |  | $ | 307 |
Contributions paid |  | $ | 409 |  |  | $ | 415 |  |  | $ | 1,234 |  |  | $ | 1,300 |

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