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Intangible Assets and Goodwill (Schedule Of Future Amortization Expense From Intangible Assets Held) (Details) - USD ($)
$ in Thousands
Nov. 30, 2016
Nov. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]    
2017 $ 27,426  
2018 26,613  
2019 25,489  
2020 714  
2021 585  
Total $ 80,827 $ 114,113