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Long-Term Debt - FV, Limit, Interest Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Feb. 28, 2019
Feb. 28, 2018
Feb. 28, 2017
Feb. 29, 2016
INTEREST EXPENSE        
Interest and commitment fees $ 11,366 $ 13,084 $ 13,745  
Deferred finance costs 1,015 887 706  
Interest rate swap settlements, net (515) 54 (90) $ 0
Cross-currency debt swap (147) (74)    
Total interest expense $ 11,719 $ 13,951 $ 14,361