Quarterly report pursuant to Section 13 or 15(d)

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

v3.22.0.1
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, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance $ 101,852 $ 96,577 $ 97,929 $ 96,724
Other comprehensive income before reclassifications     269 416
Amounts reclassified from accumulated other comprehensive loss     563 614
Total other comprehensive income 318 466 832 1,030
Ending Balance 97,539 97,333 97,539 97,333
Pension and Other Postretirement Benefits Items [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance     (7,698) (9,472)
Other comprehensive income before reclassifications     68  
Amounts reclassified from accumulated other comprehensive loss     563 614
Total other comprehensive income     631 614
Ending Balance (7,067) (8,858) (7,067) (8,858)
Foreign Currency Items [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance     301 (84)
Other comprehensive income before reclassifications     201 416
Total other comprehensive income     201 416
Ending Balance 502 332 502 332
Accumulated Other Comprehensive Loss [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance (6,883) (8,992) (7,397) (9,556)
Ending Balance $ (6,565) $ (8,526) $ (6,565) $ (8,526)