Other Expense, Net - Schedule of Other Expense, Net (Detail) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2023	Aug. 31, 2022
Other Income and Expenses [Abstract]
Pension non-service costs	$ 2,781	$ 2,516
Other	(227)	(100)
Other expense, net	$ 2,554	$ 2,416