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Derivative Instruments (Tables)
6 Months Ended
May 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Outstanding Foreign Currency Forward Contracts
The table below details outstanding foreign currency forward contracts where the notional amount is determined using contract exchange rates (in thousands):
 
 
May 31, 2018
 
November 30, 2017
 
Notional Value
 
Fair Value
 
Notional Value
 
Fair Value
Forward contracts to sell U.S. dollars
$
127,560

 
$
(1,473
)
 
$
119,192

 
$
(27
)
Forward contracts to purchase U.S. dollars
703

 
2

 
462

 

Total
$
128,263

 
$
(1,471
)
 
$
119,654

 
$
(27
)