Intangible Assets and Goodwill (Tables)
 6 Months Ended
May 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule Of Intangible Assets
Intangible assets are comprised of the following significant classes (in thousands):
 
 
May 31, 2014
 
November 30, 2013
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net Book
Value
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net Book
Value
Purchased technology
$
52,079

 
$
(37,733
)
 
$
14,346

 
$
44,793

 
$
(36,712
)
 
$
8,081

Customer-related and other
19,733

 
(17,989
)
 
1,744

 
19,543

 
(17,674
)
 
1,869

Total
$
71,812

 
$
(55,722
)
 
$
16,090

 
$
64,336

 
$
(54,386
)
 
$
9,950
Schedule Of Future Amortization Expense From Intangible Assets Held
Future amortization expense for intangible assets as of May 31, 2014, is as follows (in thousands):
 
Remainder of 2014
$
1,851

2015
3,482

2016
2,979

2017
2,979

2018
2,162

Thereafter
2,637

Total
$
16,090
Schedule of Goodwill
Changes in the carrying amount of goodwill in the six months ended May 31, 2014, are as follows (in thousands):

Balance, November 30, 2013
$
224,286

Additions
6,433

Translation adjustments
(38
)
Balance, May 31, 2014
$
230,681