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Pension And Other Postretirement Benefit Plans (Additional Information On Funded Status) (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Mar. 31, 2024
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Pension Benefits [Member] |  |
For Plans With A Projected Benefit Obligation In Excess Of Plan Assets: |  |
Aggregate projected benefit obligation (PBO) | $ 39,116 | $ 36,842
Aggregate fair value of plan assets | 0 | 0
For Plans With An Accumulated Benefit Obligation In Excess Of Plan Assets: |  |
Aggregate accumulated benefit obligation (ABO) | 37,352 | 35,640
Aggregate fair value of plan assets | 0 | 0
Other Postretirement Benefits [Member] |  |
For Plans With A Projected Benefit Obligation In Excess Of Plan Assets: |  |
Aggregate projected benefit obligation (PBO) | 18,134 | 20,078
Aggregate fair value of plan assets | $ 1,537 | $ 1,934

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