Intangible Assets And Goodwill (Tables)

12 Months Ended

Nov. 30, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule Of Intangible Assets

Intangible assets are comprised of the following significant classes at November 30, 2012 and 2011 (in thousands):

	November 30, 2012							November 30, 2011
	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Gross Carrying Amount		Accumulated Amortization			Net Book Value
Purchased technology	$	42,520	$	(40,066	)	$	2,454	$	138,470	$	(96,759	)	$	41,711
Customer-related and other	26,477		(23,812		)	2,665		77,609		(54,912		)	22,697
Total	$	68,997	$	(63,878	)	$	5,119	$	216,079	$	(151,671	)	$	64,408

Schedule Of Future Amortization Expense From Intangible Assets Held

Future amortization expense for intangible assets as of November 30, 2012, is as follows (in thousands):

2013	$	2,023
2014	1,245
2015	849
2016	345
2017	345
Thereafter	312
Total	$	5,119

Summary Of Changes In The Carrying Amount Of Goodwill

Changes in the carrying amount of goodwill for fiscal years 2012 and 2011, are as follows (in thousands):

	November 30, 2012			November 30, 2011
Balance, beginning of year	$	256,211		$	236,730
Additions	—			19,427
Disposals	(11,440		)	—
Goodwill transfered to assets held for sale	(18,581		)	—
Translation adjustments	(80		)	54
Balance, end of year	$	226,110		$	256,211