v3.26.1
Fair Value Measurements - Additional Information (Detail) - USD ($)
Feb. 28, 2026
May 31, 2025
Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets $ 0  
Long-term Debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt at fair value including current maturities 287,121,000 $ 263,547,000
Long-term debt at carrying amount $ 307,256,000 $ 302,868,000