Pension And Other Postretirement Benefit Plans (Additional Information On Funded Status) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Pension Benefits [Member]
For Plans With A Projected Benefit Obligation In Excess Of Plan Assets:
Aggregate projected benefit obligation (PBO)	$ 36,842	$ 29,430
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)	35,640	28,487
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)	20,078	20,716
Aggregate fair value of plan assets	$ 1,934	$ 2,257

Amount of plan asset for defined benefit pension plan with projected benefit obligation in excess of plan assets.

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- Definition

Amount of projected benefit obligation for defined benefit pension plan with projected benefit obligation in excess of plan assets.

+ References

+ Details

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- Definition

Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480482/715-20-55-17

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-3

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-3

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Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

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For plans with an accumulated benefit obligation in excess of plan assets:

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For plans with a projected benefit obligation in excess of plan assets

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