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Comprehensive Income (Loss) (Tables)
 12 Months Ended
Nov. 30, 2012
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]  
Components Of Accumulated Other Comprehensive Income (Loss)
The balances of each component of Accumulated Other Comprehensive Income (Loss), net of taxes, consist of the following (in thousands):
 
 
 
November 30,
 
 
2012
 
2011
 
2010
Cumulative translation adjustment, net of tax
 
$
(17,436
)
 
$
(21,057
)
 
$
(22,066
)
Unrealized gain (loss) on available-for-sale securities
 
25

 
25

 
(10
)
Total accumulated other comprehensive loss
 
$
(17,411
)
 
$
(21,032
)
 
$
(22,076
)