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Retirement Plans - Net Periodic Pension Costs (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Defined Benefit Plan Disclosure [Line Items]      
Settlement gain $ 1,069 $ (284) $ (438)
United States Plans      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 0 0 0
Interest cost 491 657 582
Expected return on plan assets (141) (424) (455)
Amortization and deferral (61) 0 0
Settlement gain (1,548) 0 0
Net periodic benefit cost (1,259) 233 127
International Plans      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 954 884 918
Interest cost 2,501 2,215 1,715
Expected return on plan assets (1,421) (1,244) (2,005)
Amortization and deferral 582 326 478
Settlement gain 0 0 0
Net periodic benefit cost $ 2,616 $ 2,181 $ 1,106