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Goodwill and Intangible Assets - Amortization (Details) - USD ($)
$ in Thousands
12 Months Ended
Feb. 28, 2019
Feb. 28, 2018
Feb. 28, 2017
Goodwill and Intangible Assets Disclosure [Abstract]      
Aggregate Amortization Expense $ 14,204 $ 18,854 $ 22,024
Estimated Amortization Expense      
Fiscal 2020 13,142    
Fiscal 2021 10,563    
Fiscal 2022 4,057    
Fiscal 2023 3,986    
Fiscal 2024 $ 3,679