Accumulated Other Comprehensive Loss (Tables)
 6 Months Ended
May 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 six months ended May 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
1,817

 
(3
)
 
1,814

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

 
—

 
256

Balance, May 31, 2016
$
(22,509
)
 
$
(49
)
 
$
(22,558
)