Other Expense, Net - Schedule of Other Expense, Net (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2023	Nov. 30, 2022
Other Income and Expenses [Abstract]
Pension non-service costs	$ 2,785	$ 2,486	$ 5,566	$ 5,002
Other	32	(176)	(195)	(276)
Other expense, net	$ 2,817	$ 2,310	$ 5,371	$ 4,726