Intangible Assets (Tables)

12 Months Ended

Oct. 31, 2012

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Intangible assets

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

	October 31,
	2011							2012
	Gross Intangible		Accumulated Amortization			Net Intangible		Gross Intangible		Accumulated Amortization			Net Intangible
Developed technology	$	417,833	$	(234,393	)	$	183,440	$	417,833	$	(279,195	)	$	138,638
Patents and licenses	46,538		(45,320		)	1,218		46,538		(45,566		)	972
Customer relationships, covenants not to compete, outstanding purchase orders and contracts	323,573		(176,596		)	146,977		323,573		(206,046		)	117,527
Total intangible assets	$	787,944	$	(456,309	)	$	331,635	$	787,944	$	(530,807	)	$	257,137

Expected future amortization of finite-lived intangible assets

Expected future amortization of intangible assets for the fiscal years indicated is as follows (in thousands):

Year Ended October 31,
2013	$	71,309
2014	57,151
2015	52,879
2016	52,879
2017	22,783
Thereafter	136
	$	257,137