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Retirement Plans - Summary Changes in Plan Assets and Benefit Obligations (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Changes in plan assets and benefit obligations:      
New prior service cost $ 0 $ 0 $ 0
Net loss (gain) arising during the year 7,439 (10,352) (9,362)
Effect of exchange rates on amounts included in AOCI 127 (957) (883)
Amounts recognized as a component of net periodic benefit costs:      
Amortization of prior service cost 42 41 $ 45
Defined Benefit Plan Net Periodic Benefit Cost Credit Curtailment Gain Loss Statement Of Income Or Comprehensive Income Extensible List Not Disclosed Flag     Amortization of prior service cost
Amortization or settlement recognition of net loss (284) (438) $ (1,167)
Defined Benefit Plan Net Periodic Benefit Cost Credit Settlement Gain Loss Statement Of Income Or Comprehensive Income Extensible List Not Disclosed Flag     Amortization or settlement recognition of net loss
Total recognized in other comprehensive (income) loss $ 7,240 $ (11,788) $ (11,457)