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Accumulated Other Comprehensive Loss (Tables)
 9 Months Ended
Aug. 31, 2014
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, 2014 (in thousands):

 
Foreign Currency Translation Adjustment
 
Unrealized Gains (Losses) on Investments
 
Accumulated Other Comprehensive Loss
Balance, December 1, 2013
$
(9,249
)
 
$
(2,410
)
 
$
(11,659
)
Other comprehensive income before reclassifications, net of tax
93

 
816

 
909

Amounts reclassified from accumulated other comprehensive loss to realized losses included in earnings, net of tax
—

 
1,617

 
1,617

Balance, August 31, 2014
$
(9,156
)
 
$
23

 
$
(9,133
)