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Accumulated Other Comprehensive Loss - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2024 | Mar. 31, 2011 | Mar. 31, 2023 | Mar. 31, 2022 | Mar. 31, 2005
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Deferred taxes related to adjustments included in AOCI | $ 636 |  | $ (6,371) | $ (5,780) |
Amount of charge in the minimum pension liability component of other comprehensive income |  |  |  |  | $ 406
Pension Plans |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Other comprehensive income (loss), net of tax | (7,251) | $ 7,605 |  |  |
Defined Benefit Postretirement Life Insurance |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Other comprehensive income (loss), net of tax | $ (194) | 747 |  |  |
Postretirement Benefit Plans |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Other comprehensive income (loss), net of tax |  | $ 935 |  |  |

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