Goodwill and Intangible Assets (Tables)

3 Months Ended

Jan. 31, 2019

Intangible assets as of January 31, 2019 consisted of the following:



	Gross Assets		Accumulated Amortization		Net Assets
	(in thousands)
Core/developed technology	$	773,147	$	615,315	$	157,832
Customer relationships	358,644		214,037		144,607
Contract rights intangible	184,260		178,614		5,646
Trademarks and trade names	42,928		23,116		19,812
In-process research and development (IPR&D)(1)	1,200		—		1,200
Capitalized software development costs	36,556		33,466		3,090
Total	$	1,396,735	$	1,064,548	$	332,187


(1)	IPR&D is reclassified to core/developed technology upon completion or is written off upon abandonment.

Intangible assets as of October 31, 2018 consisted of the following:



	Gross Assets		Accumulated Amortization		Net Assets
	(in thousands)
Core/developed technology	$	773,147	$	598,956	$	174,191
Customer relationships	358,524		204,382		154,142
Contract rights intangible	183,953		177,191		6,762
Trademarks and trade names	42,929		21,944		20,985
In-process research and development (IPR&D)(1)	1,200		—		1,200
Capitalized software development costs	35,818		32,694		3,124
Total	$	1,395,571	$	1,035,167	$	360,404

Amortization expense related to intangible assets consisted of the following:



	Three Months Ended January 31,
	2019		2018
	(in thousands)
Core/developed technology	$	16,359	$	18,068
Customer relationships	9,580		8,563
Contract rights intangible	1,116		890
Trademarks and trade names	1,172		1,026
Capitalized software development costs(2)	772		920
Total	$	28,999	$	29,467

The following table presents the estimated future amortization of the existing intangible assets as of January 31, 2019:


(3)	IPR&D assets are amortized over their useful lives upon completion or are written off upon abandonment.