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v3.24.0.1

Changes in Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss by Component (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning balance | $ 100,795 | $ 96,966 | $ 96,933 | $ 96,494
Other comprehensive income (loss) before reclassifications |  |  | (173) | (519)
Amounts reclassified from accumulated other comprehensive loss |  |  | 492 | 393
Total other comprehensive income (loss) | 301 | 292 | 319 | (126)
Ending Balance | 103,756 | 97,896 | 103,756 | 97,896
Pension and Other Postretirement Benefits Items [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning balance |  |  | (7,470) | (6,970)
Other comprehensive income (loss) before reclassifications |  |  | 0 | 0
Amounts reclassified from accumulated other comprehensive loss |  |  | 492 | 393
Total other comprehensive income (loss) |  |  | 492 | 393
Ending Balance | (6,978) | (6,577) | (6,978) | (6,577)
Foreign Currency Items [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning balance |  |  | 7 | 499
Other comprehensive income (loss) before reclassifications |  |  | (173) | (519)
Amounts reclassified from accumulated other comprehensive loss |  |  | 0 | 0
Total other comprehensive income (loss) |  |  | (173) | (519)
Ending Balance | (166) | (20) | (166) | (20)
Accumulated Other Comprehensive Loss [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning balance | (7,445) | (6,889) | (7,463) | (6,471)
Ending Balance | $ (7,144) | $ (6,597) | $ (7,144) | $ (6,597)

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