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Accumulated Other Comprehensive Loss (Tables)
 9 Months Ended
Aug. 31, 2016
Equity [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss)
The following table summarizes the changes in accumulated balances of other comprehensive loss during the nine months ended August 31, 2016 (in thousands):

 
Foreign Currency Translation Adjustment
 
Unrealized Gains (Losses) on Investments
 
Accumulated Other Comprehensive Loss
Balance, December 1, 2015
$
(24,582
)
 
$
(46
)
 
$
(24,628
)
Other comprehensive loss before reclassifications, net of tax
485

 
27

 
512

Amounts reclassified from accumulated other comprehensive loss to realized losses included in earnings
256

 
—

 
256

Balance, August 31, 2016
$
(23,841
)
 
$
(19
)
 
$
(23,860
)