v3.26.1
Description of Business, The Separation, and Basis of Presentation - Summary of Concentration Percentage of Consolidated or Combined Net Sales (Detail) - Net Sales - Product Concentration Risk
12 Months Ended
May 31, 2026
May 31, 2025
May 31, 2024
End Market - Automotive      
Product Information [Line Items]      
Percentage of net sales 55.00% 52.00% 52.00%
Detroit Three Automakers      
Product Information [Line Items]      
Percentage of net sales 35.00% 33.00% 32.00%
Largest Automotive Customers: Customer A      
Product Information [Line Items]      
Percentage of net sales 14.00% 12.00% 15.00%
Largest Automotive Customers: Customer B      
Product Information [Line Items]      
Percentage of net sales 14.00% 14.00% 11.00%