v3.26.1
Commitments and Contingencies - Additional Information (Detail)
$ in Millions
3 Months Ended 12 Months Ended
Feb. 28, 2026
USD ($)
Feb. 28, 2025
USD ($)
Feb. 29, 2024
USD ($)
May 31, 2026
USD ($)
Unit
May 31, 2025
USD ($)
May 31, 2024
USD ($)
Commitments and Contingencies Disclosure [Line Items]            
Estimated liability, measurement period, years       15 years    
Estimated liability costs of remediation, current       $ 0.1 $ 0.1  
Environmental Loss Contingency, Current, Statement of Financial Position [Extensible Enumeration]       Other Liabilities, Current Other Liabilities, Current  
Royalty Expense       $ 1.9 $ 1.6 $ 3.3
Future minimum royalty payment for period, 2027       0.3    
Future minimum royalty payment for period, 2028       0.5    
Future minimum royalty payment for period, 2029       0.1    
Future minimum royalty payment for period, 2030       0.1    
Future minimum royalty payment for period, 2031       0.1    
Estimated liability costs of remediation, non current       $ 0.8 $ 0.8  
Environmental Loss Contingency, Noncurrent, Statement of Financial Position [Extensible Enumeration]       Other Liabilities, Noncurrent Other Liabilities, Noncurrent  
Proceeds from legal settlement   $ 2.7        
Fixed asset impairment   $ 2.1        
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration]   General and Administrative Expense        
Contingency losses $ 0.9 $ 1.4        
Reversal of contingent liability   $ 0.9        
Number of unexpired units sold | Unit       133,000    
Animal Safety            
Commitments and Contingencies Disclosure [Line Items]            
Business interruption insurance proceeds relating to fire damage     $ 1.3      
Gain on Business Interruption Insurance Recovery, Statement of Income or Comprehensive Income [Extensible Enumeration]     Cost of Product and Service Sold      
Product Recall            
Commitments and Contingencies Disclosure [Line Items]            
Accrual in other current liabilities $ 0.6