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Stock-Based Compensation - Summary of Activity for Market-Based Restricted Common Shares (Detail) - Market-Based Restricted Common Shares - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
May 31, 2024
May 31, 2023
May 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Outstanding, beginning of year 330 320 320
Separation related adjustment 34    
Granted 166 10  
Vested (270)    
Outstanding, end of year 260 330 320
Weighted Average Grant Date Fair Value      
Outstanding, beginning of year $ 22.03 $ 21.61 $ 21.61
Granted 42.82 35.49  
Vested 22.96    
Outstanding, end of year $ 31.4 $ 22.03 $ 21.61
Weighted Average Remaining Contractual Life (in years)      
Weighted average remaining contractual life of outstanding performance shares (in years) 2 years 1 month 9 days 5 months 26 days 1 year 5 months 8 days
Aggregate intrinsic value      
Aggregate intrinsic value of outstanding performance shares $ 14,850 $ 18,523 $ 14,925
Aggregate intrinsic value of performance shares vested during the year $ 18,152