OTHER INTANGIBLE ASSETS

6 Months Ended

Apr. 30, 2017

Intangible Assets, Net (Excluding Goodwill) [Abstract]

OTHER INTANGIBLE ASSETS

OTHER INTANGIBLE ASSETS

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

	April 30, 2017							October 31, 2016
	Gross Intangible		Accumulated Amortization			Net Intangible		Gross Intangible		Accumulated Amortization			Net Intangible
Developed technology	$	347,727	$	(267,663	)	$	80,064	$	347,727	$	(248,128	)	$	99,599
In-process research and development	4,200		—			4,200		4,200		—			4,200
Patents and licenses	7,165		(6,410		)	755		7,165		(6,285		)	880
Customer relationships, covenants not to compete, outstanding purchase orders and contracts	358,648		(330,422		)	28,226		358,647		(316,615		)	42,032
Total other intangible assets	$	717,740	$	(604,495	)	$	113,245	$	717,739	$	(571,028	)	$	146,711

The aggregate amortization expense of intangible assets was $33.5 million and $40.5 million for the first six months of fiscal 2017 and 2016, respectively. Expected future amortization of intangible assets for the fiscal years indicated is as follows (in thousands):

Period ended October 31,
2017 (remaining six months)	$	11,895
2018	22,680
2019	22,133
2020	21,106
2021	18,172
Thereafter	13,059
	$	109,045	(1)

(1) Does not include amortization of in-process research and development, as estimation of the timing of future amortization expense would be impractical.