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Intangible Assets and Goodwill (Tables)
 3 Months Ended
Feb. 28, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule Of Intangible Assets
Intangible assets are comprised of the following significant classes (in thousands):
 
 
February 28, 2014
 
November 30, 2013
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net Book
Value
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net Book
Value
Purchased technology
$
44,780

 
$
(37,226
)
 
$
7,554

 
$
44,793

 
$
(36,712
)
 
$
8,081

Customer-related and other
19,546

 
(17,843
)
 
1,703

 
19,543

 
(17,674
)
 
1,869

Total
$
64,326

 
$
(55,069
)
 
$
9,257

 
$
64,336

 
$
(54,386
)
 
$
9,950
Schedule Of Future Amortization Expense From Intangible Assets Held
Future amortization expense for intangible assets as of February 28, 2014, is as follows (in thousands):
 
Remainder of 2014
$
1,944

2015
2,409

2016
1,906

2017
1,906

2018
1,092

Thereafter
—

Total
$
9,257