Pension Plans - Reconciliation of Benefit Obligations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Pension benefit obligation, beginning of year	$ 22,648	$ 18,789
Service cost	2,498	2,272
Contributions paid by plan participants	11,124	2,704
Interest cost	96	126
Benefits paid	(4,822)	(2,207)
Prior service cost	0	0
Actuarial loss / (gain)	(2,443)	648
Foreign currency translation	454	316
Pension benefit obligation, end of year	$ 29,555	$ 22,648