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Derivative Instruments (Tables)
 12 Months Ended
Nov. 30, 2015
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):
 
 
November 30, 2015
 
November 30, 2014
 
Notional Value
 
Fair Value
 
Notional Value
 
Fair Value
Forward contracts to sell U.S. dollars
$
76,748

 
$
(4,026
)
 
$
21,738

 
$
(13
)
Forward contracts to purchase U.S. dollars
2,077

 
5

 
15,534

 
(89
)
Total
$
78,825

 
$
(4,021
)
 
$
37,272

 
$
(102
)