Intangible Assets and Goodwill (Tables)

9 Months Ended

Aug. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule Of Intangible Assets

Intangible assets are comprised of the following significant classes (in thousands):

	August 31, 2013							November 30, 2012
	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Gross Carrying Amount		Accumulated Amortization			Net Book Value
Purchased technology	$	44,730	$	(36,117	)	$	8,613	$	42,520	$	(40,066	)	$	2,454
Customer-related and other	19,537		(17,460		)	2,077		26,477		(23,812		)	2,665
Total	$	64,267	$	(53,577	)	$	10,690	$	68,997	$	(63,878	)	$	5,119

Schedule Of Future Amortization Expense From Intangible Assets Held

Future amortization expense for intangible assets as of August 31, 2013, is as follows (in thousands):

Remainder of 2013	$	739
2014	2,638
2015	2,409
2016	1,906
2017	1,906
Thereafter	1,092
Total	$	10,690

Schedule of Goodwill

Changes in the carrying amount of goodwill for the nine months ended August 31, 2013, are as follows (in thousands):

Balance, November 30, 2012	$	226,110
Addition	4,798
Disposal	(6,377		)
Translation adjustments	(241		)
Balance, August 31, 2013	$	224,290