Quarterly report pursuant to Section 13 or 15(d)

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

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)