Pretax Net Actuarial Loss and Prior Service (Cost) Recognized in Accumulated Other Comprehensive Income (Loss) not Affecting Retained Earnings,Pension (Detail) - Pension Benefits - USD ($) $ in Thousands	May 31, 2022	May 31, 2021
U.S. Plans
Schedule of Net Periodic Benefit Costs and Assumptions for Defined Benefit Postretirement Plans [Line Items]
Net actuarial loss	$ (214,607)	$ (250,317)
Prior service (costs) credit	(7)	(12)
Total recognized in accumulated other comprehensive income not affecting retained earnings	(214,614)	(250,329)
Non-U.S. Plans
Schedule of Net Periodic Benefit Costs and Assumptions for Defined Benefit Postretirement Plans [Line Items]
Net actuarial loss	(25,984)	(30,045)
Prior service (costs) credit	518	1,023
Total recognized in accumulated other comprehensive income not affecting retained earnings	$ (25,466)	$ (29,022)