Employee Retirement Plans - Additional Information (Detail)	3 Months Ended	12 Months Ended
	Nov. 30, 2024 USD ($) Beneficiary	May 31, 2025 USD ($) Age	May 31, 2024 USD ($)	May 31, 2023 USD ($)	Nov. 16, 2023 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Percentage of matching contribution per dollar		50.00%
Percentage of plan participants compensation		4.00%
Employer contribution		3.00%
Minimum contribution guarantees percentage		3.00%
Benefit receivable reaching age | Age		65
Description of investment policy and strategy for the defined benefit plan		The investment policy and strategy for the defined benefit plans is: (i) long-term in nature with liquidity requirements that are anticipated to be minimal due to the projected normal retirement date of the average employee and the current average age of participants; (ii) to earn nominal returns, net of investment fees, equal to or in excess of the defined benefit plans’ respective liability growth rate; and (iii) to include a diversified asset allocation of domestic and international equities and fixed income investments.
Expected employer contribution to defined benefit plan during fiscal 2025		$ 800,000
Net periodic benefit cost		$ (3,100,000)	$ (700,000)	$ (600,000)
Discount rate		5.36%	5.52%	4.80%
Tempel Steel Company
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, funded percentage	26.00%
Defined benefit plan, benefit obligation, non-cash settlement gain	$ 2,700,000
transferred of projected benefit obligation	$ 18,700,000
Number of beneficiaries owed | Beneficiary	472
Defined benefit plan, benefit obligation, decrease for remeasurement due to settlement	$ 2,000,000
Discount rate		5.40%
Tempel Steel Company | June 1, 2024 up until September 2024
Defined Benefit Plan Disclosure [Line Items]
Discount rate		5.55%
Tempel Steel Company | September 2024 Until May 31, 2025
Defined Benefit Plan Disclosure [Line Items]
Discount rate		4.79%
Maximum | Tempel Steel Company
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost		$ 100,000	$ 100,000	$ 100,000
Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit plan assets fair value		0	0
Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit plan assets fair value		$ 0	$ 0
Voestalpine Automotive Components Nagold GmbH & Co. KG
Defined Benefit Plan Disclosure [Line Items]
Pension and other postretirement benefit obligations, net					$ 900,000