XML 80 R59.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Long-Term Debt - Schedule (Details)
3 Months Ended 9 Months Ended
Nov. 30, 2019
USD ($)
Nov. 30, 2018
Nov. 30, 2019
USD ($)
method
Nov. 30, 2018
Minimum | Credit agreement        
Long-term debt        
Interest rate range during each year (as a percent) 2.70% 3.10% 2.70% 2.80%
Maximum | Credit agreement        
Long-term debt        
Interest rate range during each year (as a percent) 5.30% 5.30% 5.50% 5.30%
Credit agreement        
Long-term debt        
Maximum revolving commitment $ 1,000,000,000.0   $ 1,000,000,000.0  
Number of alternative methods under which interest on borrowings accrue | method     2  
Amount available for borrowings 765,200,000   $ 765,200,000  
Maximum additional debt allowed under debt covenants 730,500,000   730,500,000  
Revolving loan | Credit agreement        
Long-term debt        
Amount outstanding 225,800,000   225,800,000  
Letter of credit | Credit agreement        
Long-term debt        
Amount outstanding $ 9,000,000.0   $ 9,000,000.0