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Pensions and Other Benefit Plans - Pension Plans with a Projected and Accumulated Benefit Obligation in Excess of Plan Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Mar. 31, 2024
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | $ 6,342 |
Pension Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Projected benefit obligation | 66,384 | $ 171,273
Fair value of plan assets | 0 | 96,935
Accumulated benefit obligation | 64,219 | 168,488
Fair value of plan assets | $ 0 | $ 96,935

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