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v3.25.2

Changes in Accumulated Other Comprehensive Loss - Reclassifications Out of Accumulated Other Comprehensive Loss by Component (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Jun. 30, 2025 | Jun. 30, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Income before benefit for income taxes |  | $ 5,013 | $ 3,294
Provision for income taxes |  | 418 | 328
Net Income (Loss) |  | 4,595 | 2,966
Reclassifications Out of Accumulated Other Comprehensive Loss [Member] | Amortization of Actuarial income (loss) [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Income before benefit for income taxes | [1] | 210 | 195
Reclassifications Out of Accumulated Other Comprehensive Loss [Member] | Pension and Other Postretirement Benefits Items [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Provision for income taxes |  | 48 | 45
Net Income (Loss) |  | $ 162 | $ 150
[1] | These accumulated other comprehensive loss components are included within the computation of pension and other postretirement benefit costs.

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