v3.26.1
Restructuring and Other (Income) Expense, Net - Additional Information (Detail) - USD ($)
 3 Months Ended 12 Months Ended
May 31, 2026
Feb. 28, 2026
May 31, 2027
May 31, 2026
May 31, 2025
May 31, 2024
Restructuring Cost and Reserve [Line Items]            
Restructuring and other expense, net       $ (7,000,000) $ 2,600,000 $ 0
Property, machinery and equipment, net $ 649,300,000     649,300,000 548,200,000  
Net proceeds from sale of assets 1,300,000 $ 1,300,000        
Gross proceeds from sale of finance lease assets and buildings and improvements, net   14,700,000        
Net cash proceeds from sale of finance lease assets and buildings and improvements, net   14,100,000        
Voluntary Retirement Program            
Restructuring Cost and Reserve [Line Items]            
Severance expenses       1,200,000 1,800,000  
Manufacturing Facility            
Restructuring Cost and Reserve [Line Items]            
Severance expenses       500,000 $ 800,000  
Manufacturing Facility | Forecast            
Restructuring Cost and Reserve [Line Items]            
Severance expenses     $ 0      
Machinery And Equipment [Member]            
Restructuring Cost and Reserve [Line Items]            
Property, machinery and equipment, net 300,000 300,000   $ 300,000    
Pre-tax gain on sale of assets $ 1,000,000 1,000,000        
Finance Lease Assets and Buildings and Improvements, Net            
Restructuring Cost and Reserve [Line Items]            
Property, machinery and equipment, net   9,700,000        
Pre-tax gain on sale of assets   $ 5,000,000