Intangible Assets

12 Months Ended

Oct. 31, 2014

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,
	2013							2014
	Gross Intangible		Accumulated Amortization			Net Intangible		Gross Intangible		Accumulated Amortization			Net Intangible
Developed technology	$	417,833	$	(321,645	)	$	96,188	$	417,833	$	(351,929	)	$	65,904
Patents and licenses	46,538		(45,744		)	794		46,538		(45,908		)	630
Customer relationships, covenants not to compete, outstanding purchase orders and contracts	323,573		(234,727		)	88,846		323,573		(261,430		)	62,143
Total intangible assets	$	787,944	$	(602,116	)	$	185,828	$	787,944	$	(659,267	)	$	128,677

The aggregate amortization expense of intangible assets was $74.5 million, $71.3 million and $57.2 million for fiscal 2012, fiscal 2013 and fiscal 2014, respectively. Expected future amortization of intangible assets for the fiscal years indicated is as follows (in thousands):

Year Ended October 31,
2015	$	52,879
2016	52,879
2017	22,783
2018	136
2019	—
	$	128,677