Description of Business and Basis of Presentation - Summary of Concentration Percentage of Consolidated Net Sales (Detail) - Net Sales - Product Concentration Risk	3 Months Ended
	Aug. 31, 2025	Aug. 31, 2024
End Market - Automotive
Product Information [Line Items]
Percentage of Net sales	56.00%	51.00%
Detroit Three Automakers
Product Information [Line Items]
Percentage of Net sales	35.00%	32.00%
Largest Automotive Customers: Customer A
Product Information [Line Items]
Percentage of Net sales	13.00%	13.00%
Largest Automotive Customers: Customer B
Product Information [Line Items]
Percentage of Net sales	15.00%	13.00%