Basis of Presentation - Additional Information (Detail) $ in Thousands	6 Months Ended
	Nov. 30, 2023 USD ($) Jointventure
Significant Accounting Policies [Line Items]
Third-party advisory fees	$ 15,760
Non-recurring employee-related costs	7,093
Incremental compensation expense	$ 5,437
Joint Venture Transactions
Significant Accounting Policies [Line Items]
Number of operating joint ventures | Jointventure	3
Spartan | Joint Venture Transactions
Significant Accounting Policies [Line Items]
Percent of controlling interest by the Company	52.00%
TWB | Joint Venture Transactions
Significant Accounting Policies [Line Items]
Percent of controlling interest by the Company	55.00%
Samuel | Joint Venture Transactions
Significant Accounting Policies [Line Items]
Percent of controlling interest by the Company	63.00%
Worthington Specialty Processing | Joint Venture Transactions
Significant Accounting Policies [Line Items]
Percent of controlling interest by the Company	51.00%