Activity that Occurred for Level Three Assets (Detail) - Significant Unobservable Inputs (Level 3) - Pension Benefits - USD ($) $ in Thousands		12 Months Ended
		May 31, 2024	May 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Balance at Beginning of Period		$ 19,418	$ 23,179
Actual Return on Plan Assets For Assets Still Held at Reporting Date		1,051	(2,399)
Settlements	[1]	8	(1,362)
Balance at End of Period		$ 20,477	$ 19,418

[1] Includes the impact of exchange rate changes during the year.