Fair Value - Additional Information (Detail) - USD ($)	Feb. 29, 2024	May 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current maturities of long-term debt due to Worthington Enterprises, Inc.	$ 0	$ 20,000,000
Short-term loan facilities	147,200,000	2,800,000
Revolving Credit Facility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term loan facilities	147,200,000	0
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair market value of assets	3,900,000	2,300,000
Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair market value of assets	$ 0	$ 2,600,000