Description of Business and Basis of Presentation - Summary of Concentration Percentage of Consolidated Net Sales (Detail) - Net Sales - Product Concentration Risk	3 Months Ended		9 Months Ended
	Feb. 28, 2026	Feb. 28, 2025	Feb. 28, 2026	Feb. 28, 2025
End Market - Automotive
Product Information [Line Items]
Percentage of Net sales	54.00%	52.00%	55.00%	52.00%
Detroit Three Automakers
Product Information [Line Items]
Percentage of Net sales	33.00%	32.00%	35.00%	32.00%
Largest Automotive Customers: Customer A
Product Information [Line Items]
Percentage of Net sales	15.00%	12.00%	14.00%	12.00%
Largest Automotive Customers: Customer B
Product Information [Line Items]
Percentage of Net sales	12.00%	14.00%	14.00%	14.00%