v3.25.2
Pension Plans - Retirement-Related Benefit Plans' Impact on Income Before Income Taxes (Detail) - Pension Benefits - USD ($)
$ in Thousands
 12 Months Ended
May 31, 2025
May 31, 2024
May 31, 2023
U.S. Plans      
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost $ 43,217 $ 43,652 $ 43,558
Interest cost 39,180 35,967 28,692
Expected return on plan assets (48,069) (42,072) (38,144)
Prior service cost (credit) 2 2 1
Net actuarial losses recognized 8,613 16,822 17,948
Curtailment/settlement (gains) losses 0   (3)
Net Pension Cost 42,943 54,371 52,052
Non-U.S. Plans      
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost 4,427 3,534 3,633
Interest cost 7,836 7,667 6,619
Expected return on plan assets (9,490) (9,588) (6,581)
Prior service cost (credit) 159 (127) (116)
Net actuarial losses recognized 1,189 833 473
Curtailment/settlement (gains) losses 7 (50) 188
Net Pension Cost $ 4,128 $ 2,269 $ 4,216