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Pension Plans - Schedule of Provision for Pension Benefit Obligation Recognized in Other Comprehensive Income (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]    
Net actuarial (gain) / loss $ (2,883) $ (389)
Amortization of prior service credit (58) (58)
Amortization of net loss 0 0
Provision for pension benefit obligation $ (2,941) $ (447)