Intangible Assets

12 Months Ended

Oct. 31, 2011

Intangible Assets, Net (Excluding Goodwill) [Abstract]

INTANGIBLE ASSETS

INTANGIBLE ASSETS

As of the dates indicated, intangible assets are comprised of the following (in thousands):

	October 31,
	2010							2011
	Gross Intangible		Accumulated Amortization			Net Intangible		Gross Intangible		Accumulated Amortization			Net Intangible
Developed technology	$	417,833	$	(186,129	)	$	231,704	$	417,833	$	(234,393	)	$	183,440
Patents and licenses	45,388		(45,167		)	221		46,538		(45,320		)	1,218
Customer relationships, covenants not to compete, outstanding purchase orders and contracts	323,573		(129,086		)	194,487		323,573		(176,596		)	146,977
Total intangible assets	$	786,794	$	(360,382	)	$	426,412	$	787,944	$	(456,309	)	$	331,635

The aggregate amortization expense of intangible assets was $31.4 million, $127.0 million and $95.9 million for fiscal 2009, fiscal 2010 and fiscal 2011, respectively. Expected future amortization of intangible assets for the fiscal years indicated is as follows (in thousands):

Year Ended October 31,
2012	$	74,497
2013	71,309
2014	57,151
2015	52,879
2016	52,879
Thereafter	22,920
	$	331,635