v3.26.3
Stock-Based Compensation
3 Months Ended
Aug. 31, 2026
Share-Based Payment Arrangement [Abstract]  
Stock-Based Compensation STOCK-BASED COMPENSATION
 
The following table summarizes stock-based compensation expense included in Selling, general and administrative expenses for the periods indicated: 
Three months ended
August 31,August 31,
20262025
Stock option expense$0.2 $0.3 
Restricted stock unit expense1.9 1.5 
Management stock purchase plan— 0.0 
Employee stock purchase plan0.1 0.1 
Total stock-based compensation expense$2.2 $1.9 

The following table sets forth Common Stock issued pursuant to stock-based compensation plans for the periods indicated:
Three months ended
August 31,August 31,
20262025
Common Stock issued pursuant to stock-based compensation plans (in millions)0.30.1