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Defined Pension Plans - Schedule of Net Periodic Pension Costs (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |
Net periodic cost (benefit) | $ 0 | $ 191 | $ 0 | $ 386 |  |
Pension Plan |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |
Net periodic cost (benefit) | 0 | 191 | 0 | 386 |  |
Supplemental Employee Retirement Plan |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |
Interest cost on projected benefit obligation |  |  |  |  |  | $ 450
Net amortization |  |  |  |  |  | 0
Net periodic cost (benefit) | $ 112 | $ 112 | $ 225 | $ 225 |  | $ 450
Supplemental Employee Retirement Plan | Forecast |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |
Interest cost on projected benefit obligation |  |  |  |  | $ 463 |
Net amortization |  |  |  |  | (13) |
Net periodic cost (benefit) |  |  |  |  | $ 450 |

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