GOODWILL AND PURCHASED AND OTHER INTANGIBLES

Goodwill by reportable segment and activity for the years ended November 30, 2018 and December 1, 2017 was as follows (in thousands):



	2016		Acquisitions		Other⁽¹⁾		2017		Acquisitions		Other⁽¹⁾			2018
Digital Media	$	2,796,590	$	—	$	4,501	$	2,801,091	$	—	$	(2,481	)	$	2,798,610
Digital Experience	2,351,462		348,352		62,232		2,762,046		4,791,216		(29,246		)	7,524,016
Publishing	258,422		—		2		258,424		—		(2		)	258,422
Goodwill	$	5,406,474	$	348,352	$	66,735	$	5,821,561	$	4,791,216	$	(31,729	)	$	10,581,048

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⁽¹⁾	Amounts primarily consist of foreign currency translation adjustments.

Purchased and other intangible assets by reportable segment as of November 30, 2018 and December 1, 2017 were as follows (in thousands):



	2018		2017
Digital Media	$	408,602	$	128,243
Digital Experience	1,660,396		257,408
Publishing	3		7
Purchased and other intangible assets, net	$	2,069,001	$	385,658

Purchased and other intangible assets as of November 30, 2018 and December 1, 2017 were as follows (in thousands):



	2018							2017
	Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
Purchased technology	$	750,286	$	(118,812	)	$	631,474	$	223,252	$	(110,433	)	$	112,819
Customer contracts and relationships	$	1,329,432	$	(416,176	)	$	913,256	$	577,484	$	(356,613	)	$	220,871
Trademarks	384,855		(25,968		)	358,887		76,255		(56,094		)	20,161
Acquired rights to use technology	58,966		(48,770		)	10,196		71,130		(54,223		)	16,907
Backlog	147,300		(13,299		)	134,001		4,813		(3,037		)	1,776
Other intangibles	51,096		(29,909		)	21,187		34,483		(21,359		)	13,124
Total other intangible assets	$	1,971,649	$	(534,122	)	$	1,437,527	$	764,165	$	(491,326	)	$	272,839
Purchased and other intangible assets, net	$	2,721,935	$	(652,934	)	$	2,069,001	$	987,417	$	(601,759	)	$	385,658

In fiscal 2018 and 2017, certain purchased intangibles associated with our acquisitions in prior years became fully amortized and were removed from the Consolidated Balance Sheets.

Amortization expense related to purchased and other intangible assets was $182.6 million, $153.6 million, and $152.4 million for fiscal 2018, 2017 and 2016 respectively. Of these amounts, $91.3 million, $76.1 million, and $71.1 million were included in cost of sales for fiscal 2018, 2017 and 2016 respectively.

Purchased and other intangible assets are amortized over their estimated useful lives of 1 to 14 years. As of November 30, 2018, we expect amortization expense in future periods to be as follows (in thousands):



Fiscal Year	Purchased Technology ^(*)		Other Intangible Assets
2019	$	114,445	$	270,588
2020	112,153		233,064
2021	89,783		146,541
2022	82,119		132,188
2023	72,166		132,046
Thereafter	121,708		523,100
Total expected amortization expense	$	592,374	$	1,437,527

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^(*)	Excludes $39.1 million of capitalized in-process research and development which are considered indefinite lived until the completion or abandonment of the associated research and development efforts