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Restructuring Plan (Details) - USD ($)
$ in Thousands
 3 Months Ended
May 31, 2020
May 31, 2019
Restructuring Plan    
Restructuring charges $ 333 $ 619
Cash restructuring payments for the reporting period 600  
Project Refuel    
Restructuring Plan    
Expected restructuring costs 9,500  
Restructuring charges 300  
Incurred pre-tax restructuring costs 9,000  
Cash restructuring payments to date 8,600  
Restructuring liability 500  
Minimum | Project Refuel    
Restructuring Plan    
Targeted annualized profit improvement 9,000  
Maximum | Project Refuel    
Restructuring Plan    
Targeted annualized profit improvement $ 11,000