Income Taxes - Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	May 31, 2023	May 31, 2022
Deferred tax assets
Accounts receivable	$ 1,929	$ 1,695
Inventories	6,195	6,291
Accrued expenses	30,157	28,981
Net operating loss carry forwards	10,700	8,178
Stock-based compensation	6,226	5,432
Derivative contracts	2,242
Operating lease - ROU liability	8,390	10,443
Other	2,523	1,588
Total deferred tax assets	68,362	62,608
Valuation allowance for deferred tax assets	(5,480)	(5,878)
Net deferred tax assets	62,882	56,730
Deferred tax liabilities
Property, plant and equipment	(60,771)	(58,433)
Intangibles	(69,175)	(69,426)
Investment in affiliated companies, principally due to undistributed earnings	(23,073)	(28,274)
Operating lease - ROU asset	(8,091)	(10,354)
Derivative contracts		(412)
Other	(3,221)	(4,963)
Total deferred tax liability	(164,331)	(171,862)
Net deferred tax liability	$ (101,449)	$ (115,132)