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)

v3.22.2
Changes in Accumulated Other Comprehensive Loss - Reclassifications Out of Accumulated Other Comprehensive Loss by Component (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Income (loss) before benefit for income taxes $ 891 $ (3,871)
Benefit for income taxes 215 (745)
Net income (loss) 676 (3,126)
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] 168 (219)
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]    
Benefit for income taxes 37 (49)
Net income (loss) $ 131 $ (170)
[1] These accumulated other comprehensive loss components are included within the computation of pension and other postretirement benefit costs. See Note 9.