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Investments - Epic Gas - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Nov. 30, 2019
Nov. 30, 2018
Nov. 30, 2017
Schedule of Equity Method Investments [Line Items]      
Proceeds from sale of Epic Gas $ 0 $ 0 $ 173,105
Epic Gas      
Schedule of Equity Method Investments [Line Items]      
Ownership percentage   21.10%  
Proceeds from sale of Epic Gas 24,600    
Gain on sale of Epic Gas $ 2,800    
Our total equity balance   $ 21,700