Fair Value Measurements - Assets Measured at Fair Value on Non-Recurring Basis (Detail) - USD ($)	May 31, 2022		May 31, 2021	May 31, 2020
Long Lived Assets Held And Used
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset measured at fair value on non-recurring basis				$ 2,800,000
Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset measured at fair value on non-recurring basis	$ 700,000		$ 400,000
Fair Value, Nonrecurring | Long Lived Assets Held For Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset measured at fair value on non-recurring basis	700,000	[1]	400,000
Fair Value, Nonrecurring | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset measured at fair value on non-recurring basis	700,000		400,000
Fair Value, Nonrecurring | Fair Value, Inputs, Level 2 | Long Lived Assets Held For Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset measured at fair value on non-recurring basis	$ 700,000	[1]	400,000
Fair Value, Nonrecurring | Fair Value, Inputs, Level 2 | Long Lived Assets Held And Used
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset measured at fair value on non-recurring basis			$ 5,934,000

[1] Comprised of production equipment at our Twinsburg, Ohio facility with an estimated fair market value of $700,000. Refer to “Note E – Goodwill and Other Long-Lived Assets” for additional information.