Quarterly report pursuant to Section 13 or 15(d)

Changes in Accumulated Other Comprehensive Loss - Reclassifications Out of Accumulated Other Comprehensive Loss by Component (Detail)

v3.23.2
Changes in Accumulated Other Comprehensive Loss - Reclassifications Out of Accumulated Other Comprehensive Loss by Component (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Income (loss) before benefit for income taxes $ 3,406 $ 891
Tax effect 766 215
Net income (loss) 2,640 676
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 (loss) before benefit for income taxes [1] 211 168
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]    
Tax effect 47 37
Net income (loss) $ 164 $ 131
[1] These accumulated other comprehensive loss components are included within the computation of pension and other postretirement benefit costs.