v3.25.2
Fair Value Measurements - Fair Value and Carrying Value of Financial Instruments and Long-Term Debt (Detail) - USD ($)
$ in Thousands
May 31, 2025
May 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Marketable equity securities $ 135,400 $ 127,600
Available-for-sale debt securities 24,323 26,697
Carrying Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion 2,646,613 2,127,148
Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion $ 2,523,202 $ 1,979,359