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Income Taxes (Components of Pretax Income) (Details) - USD ($)
$ in Thousands
12 Months Ended
Nov. 30, 2019
Nov. 30, 2018
Nov. 30, 2017
Income Tax Disclosure [Abstract]      
U.S. $ (11,778) $ 59,440 $ 65,191
Foreign 40,273 1,356 (12,728)
Total $ 28,495 $ 60,796 $ 52,463