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Pension And Other Postretirement Benefit Plans (Funded Status In Consolidated Balance Sheets) (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Mar. 31, 2020
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Noncurrent assets (included in Pension asset and other noncurrent assets) | $ 11,950 | $ 0
Noncurrent liability (reported as pensions and other postretirement benefits) | (57,637) | (70,680)
Pension Benefits [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Noncurrent assets (included in Pension asset and other noncurrent assets) | 11,950 | 346
Current liability (included in Accounts payable and accrued expenses) | (4,896) | (2,978)
Noncurrent liability (reported as pensions and other postretirement benefits) | (33,795) | (46,000)
Amounts recognized in the consolidated balance sheets | (26,741) | (48,632)
Other Postretirement Benefits [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Noncurrent assets (included in Pension asset and other noncurrent assets) | 0 | 0
Current liability (included in Accounts payable and accrued expenses) | (2,051) | (2,233)
Noncurrent liability (reported as pensions and other postretirement benefits) | (23,842) | (24,680)
Amounts recognized in the consolidated balance sheets | $ (25,893) | $ (26,913)

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