v3.26.3
Fair Value Measurements - Additional Information (Detail) - USD ($)
Aug. 31, 2026
May 31, 2026
Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets $ 0 $ 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 273,532,000 277,301,000
Long-term debt at carrying amount $ 305,552,000 $ 305,896,000