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Intangible Assets and Goodwill (Schedule Of Future Amortization Expense) (Details) - USD ($)
$ in Thousands
Aug. 31, 2020
Nov. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]    
Remainder of 2020 $ 5,777  
2021 23,117  
2022 22,136  
2023 21,860  
2024 9,044  
Net Book Value $ 81,934 $ 99,392