Other Expense (Income), Net (Detail) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2022	Aug. 31, 2021
Other Income and Expenses [Abstract]
Pension non-service costs (credits)	$ 2,516	$ (2,723)
Other	(100)	(616)
Other expense (income), net	$ 2,416	$ (3,339)