v3.26.1
Net Loss Per Share - Schedule of Calculation of Net Loss Per Share (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
May 31, 2026
May 31, 2025
May 31, 2024
Earnings Per Share [Line Items]      
Numerator for basic and diluted net loss per share - Net Loss $ (7.9) $ (1,092.0) $ (9.4)
Denominator for basic net loss per share - Weighted average shares 217.5 216.9 216.5
Effect of dilutive stock options and restricted stock units 0.0 0.0 0.0
Denominator for diluted net loss per share 217.5 216.9 216.5
Net loss attributable per share      
Basic $ (0.04) $ (5.03) $ (0.04)
Diluted $ (0.04) $ (5.03) $ (0.04)