Fair Value Measurements - Assets Measured at Fair Value on Non-Recurring Basis (Detail) - Fair Value, Nonrecurring - USD ($)		May 31, 2024	May 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		$ 0	$ 2,600
Long Lived Assets Held For Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	[1]		2,600
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure			2,600
Fair Value, Inputs, Level 2 | Long Lived Assets Held For Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	[1]		$ 2,600

[1] Comprised of the following: (1) idled equipment at the manufacturing facility in Taylor, Michigan; and (2) the net assets the Company’s former WSCP toll processing facility in Cleveland, Ohio. Refer to “Note D – Goodwill and Other Long-Lived Assets” for additional information.