Other (Income) Expense, Net (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Other Income and Expenses [Abstract]
Foreign exchange transaction losses (gains)	$ 264	$ (3,044)	$ 5,499
Non-service components of pension expense	615	1,502	1,464
Other	(1,294)	928	556
Total	$ (415)	$ (614)	$ 7,519