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Fair Value (Details) - USD ($)
$ in Thousands
Aug. 31, 2019
Nov. 30, 2018
Financial assets and liabilities carried at fair value and measured at fair value on a recurring basis:    
Assets, transfers from Level 1 to Level 2 $ 0  
Liabilities, transfers from Level 1 to Level 2 0  
Assets, transfers from Level 2 to Level 1 0  
Liabilities, transfers from Level 2 to Level 1 0  
Interest rate swap liabilities 5,736 $ 56
Recurring basis | Level 2    
Financial assets and liabilities carried at fair value and measured at fair value on a recurring basis:    
Interest rate swap assets 6 3,157
Interest rate swap liabilities $ 5,736 $ 56