Contingencies and Accrued Losses - Changes in Accrued Warranty Balances (Detail) - USD ($) $ in Thousands		12 Months Ended
		May 31, 2024	May 31, 2023	May 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Beginning Balance		$ 11,776	$ 10,905	$ 13,175
Deductions	[1]	(34,388)	(27,851)	(26,332)
Provision charged to expense		34,233	28,722	24,062
Ending Balance		$ 11,621	$ 11,776	$ 10,905

[1] Primarily claims paid during the year.