v3.26.1
Pension Plans - Activity that Occurred for Level Three Assets (Detail) - Significant Unobservable Inputs (Level 3) - Pension Benefits - USD ($)
$ in Thousands
 12 Months Ended
May 31, 2026
May 31, 2025
Defined Benefit Plan Disclosure [Line Items]    
Balance at Beginning of Period $ 28,185 $ 20,477
Actual (Loss) Return on Plan Assets For Assets Still Held at Reporting Date (207) 348
Settlements [1] 1,106 7,360
Balance at End of Period $ 29,084 $ 28,185
[1] Includes the impact of exchange rate changes during the year.