Pension Plans - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Defined Contribution Plan Disclosure [Line Items]
Defined contribution pension cost		$ 756	$ 788	$ 750
Accumulated pension obligation		22,648	18,789	17,784
Plan assets		15,751	12,436	$ 10,416
Net funded status		6,897	6,353
Contributions paid by plan participants		2,704	2,180
Cumulative amounts recognized in other comprehensive income		3,035	3,658
Cumulative amounts recognized in other comprehensive income, net loss		2,431	2,995
Cumulative amounts recognized in other comprehensive income, prior service cost		605	663
Contributions paid or to be paid by employer		1,333	1,280
Scenario, Forecast [Member]
Defined Contribution Plan Disclosure [Line Items]
Contributions paid or to be paid by employer	$ 1,436
New Employees [Member]
Defined Contribution Plan Disclosure [Line Items]
Contributions paid by plan participants		$ 1,768	$ 1,375