Pretax Net Actuarial Loss and Prior Service (Cost) Credits Recognized in Accumulated Other Comprehensive Income (Loss) not Affecting Retained Earnings, Pension (Detail) - Pension Benefits - USD ($) $ in Thousands	May 31, 2023	May 31, 2022
U.S. Plans
Schedule of Net Periodic Benefit Costs and Assumptions for Defined Benefit Postretirement Plans [Line Items]
Net actuarial loss	$ (205,025)	$ (214,607)
Prior service (costs) credit	(10)	(7)
Total recognized in accumulated other comprehensive income not affecting retained earnings	(205,035)	(214,614)
Non-U.S. Plans
Schedule of Net Periodic Benefit Costs and Assumptions for Defined Benefit Postretirement Plans [Line Items]
Net actuarial loss	(29,764)	(25,984)
Prior service (costs) credit	530	518
Total recognized in accumulated other comprehensive income not affecting retained earnings	$ (29,234)	$ (25,466)