Fair Value - Assets Measured at Fair Value on Non-Recurring Basis (Detail) - Fair Value, Nonrecurring - USD ($) $ in Thousands	Aug. 31, 2022		May 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	$ 3,280		$ 700
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	3,280		700
Long Lived Assets Held for Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	3,280	[1]	700	[2]
Long Lived Assets Held for Sale | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	$ 3,280	[1]	$ 700	[2]

[1] Comprised of fixed assets at our Steel Processing facility in Cleveland, Ohio facility with an estimated fair market value of $3,280,000. Refer to “Note E – Goodwill and Long-Lived Assets” for additional information.

[2] Comprised of production equipment at our Twinsburg, Ohio facility with an estimated fair market value of $700,000.