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Goodwill and Intangibles - Schedule of intangible assets and amortization (Details) - USD ($)
$ in Thousands
Feb. 28, 2021
Feb. 29, 2020
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 508,504 $ 449,843
Accumulated Amortization (151,240) (148,891)
Net Carrying Amount 357,264 300,952
Licenses    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 87,946 30,747
Accumulated Amortization (14,800) (28,552)
Net Carrying Amount 73,146 2,195
Trademarks    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 30,150 30,150
Accumulated Amortization (2,327) (322)
Net Carrying Amount 27,823 29,828
Other Intangibles    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 194,808 193,346
Accumulated Amortization (134,113) (120,017)
Net Carrying Amount 60,695 73,329
Licenses    
Finite-Lived Intangible Assets [Line Items]    
Infinite lived intangible assets 7,400 7,400
Trademarks    
Finite-Lived Intangible Assets [Line Items]    
Infinite lived intangible assets $ 188,200 $ 188,200