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Derivative Instruments (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Nov. 30, 2021
Nov. 30, 2020
Nov. 30, 2019
Jul. 09, 2019
Derivative [Line Items]        
Derivative assets (liabilities), at fair value $ (372) $ 1,442    
Interest Rate Swap        
Derivative [Line Items]        
Notional amount       $ 150,000
Percentage of variable rate debt, managed variability 50.00%      
Fixed interest rate       1.855%
Derivative assets (liabilities), at fair value $ (3,078) (6,855)    
Interest Rate Swap | London Interbank Offered Rate (LIBOR)        
Derivative [Line Items]        
Basis spread on variable rate       0.00%
Forward Contracts        
Derivative [Line Items]        
Minimum maturity period, foreign currency derivative 30 days      
Maximum maturity period, foreign currency derivative 3 years      
Gains (losses) on foreign currency option contracts $ (2,100) 1,700 $ (1,100)  
Forward Contracts | Other Noncurrent Liabilities        
Derivative [Line Items]        
Derivative liabilities, gross liability 300      
Forward Contracts | Accrued Liabilities        
Derivative [Line Items]        
Derivative liabilities, gross liability $ 100      
Forward Contracts | Other Assets        
Derivative [Line Items]        
Derivative liability, gross asset   $ 1,400