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Retirement Plans - Change in Projected Benefit Obligations and Change in Plan Assets (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
United States Plans      
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]      
Benefit obligation at the beginning of the period $ 18,111 $ 16,647  
Service cost 0 0 $ 0
Interest cost 533 616 631
Benefits paid, inclusive of plan expenses (802) (1,132)  
Plan curtailments and settlements 0 0  
Actuarial losses (gains) (36) 1,980  
Foreign currency translation adjustment 0 0  
Benefit obligation at the end of the period 17,806 18,111 16,647
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]      
Fair value of plan assets at the beginning of the period 12,036 13,763  
Actual return on plan assets 4,379 (649)  
Employer contributions 652 54  
Benefits paid, inclusive of plan expenses (802) (1,132)  
Defined Benefit Plan, Settlements and Curtailments, Plan Assets 0 0  
Foreign currency translation adjustment 0 0  
Fair value of plan assets at the end of the period 16,265 12,036 13,763
Funded status deficit (1,541) (6,075)  
International Plans      
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]      
Benefit obligation at the beginning of the period 68,602 75,038  
Service cost 993 906 997
Interest cost 1,388 1,485 1,831
Benefits paid, inclusive of plan expenses (2,087) (2,262)  
Plan curtailments and settlements (91) (678)  
Actuarial losses (gains) 7,761 (3,024)  
Foreign currency translation adjustment 6,686 (2,863)  
Benefit obligation at the end of the period 83,252 68,602 75,038
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]      
Fair value of plan assets at the beginning of the period 32,831 36,791  
Actual return on plan assets 6,272 (1,605)  
Employer contributions 1,869 2,098  
Benefits paid, inclusive of plan expenses (2,087) (2,262)  
Defined Benefit Plan, Settlements and Curtailments, Plan Assets (91) (482)  
Foreign currency translation adjustment 4,050 (1,709)  
Fair value of plan assets at the end of the period 42,844 32,831 $ 36,791
Funded status deficit $ (40,408) $ (35,771)