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Income Taxes (Components Of Pretax Income) (Details) - USD ($)
$ in Thousands
12 Months Ended
Nov. 30, 2016
Nov. 30, 2015
Nov. 30, 2014
Income Tax Disclosure [Abstract]      
U.S. $ 78,477 $ 62,813 $ 68,882
Foreign (113,757) (50,459) 8,922
Total $ (35,280) $ 12,354 $ 77,804