Other (Income), Net - Schedule of Other (Income), Net (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2025	Nov. 30, 2024	Nov. 30, 2025	Nov. 30, 2024
Other Income and Expenses [Abstract]
Pension non-service (credits)	$ (2,543)	$ (25)	$ (5,082)	$ (52)
Other	(260)	(457)	(822)	(964)
Other (income), net	$ (2,803)	$ (482)	$ (5,904)	$ (1,016)