GOODWILL AND OTHER INTANGIBLE ASSETS

3 Months Ended

Mar. 31, 2019

As of March 31, 2019 and December 31, 2018, goodwill and other intangible assets consisted of the following:



	March 31, 2019		December 31, 2018

	(in thousands)

Goodwill	$	6,345,998	$	6,341,355
Other intangible assets:
Customer-related intangible assets	$	2,493,426	$	2,486,217
Acquired technologies	914,127		896,701
Trademarks and trade names	293,177		289,588
Contract-based intangible assets	174,297		178,391
	3,875,027		3,850,897
Less accumulated amortization:
Customer-related intangible assets	916,457		860,715
Acquired technologies	390,868		351,170
Trademarks and trade names	92,436		83,234
Contract-based intangible assets	69,933		67,160
	1,469,694		1,362,279
	$	2,405,333	$	2,488,618

The following table sets forth the changes in the carrying amount of goodwill for the three months ended March 31, 2019:



	North America			Europe			Asia-Pacific		Total

	(in thousands)

Balance at December 31, 2018	$	5,530,087		$	484,761		$	326,507	$	6,341,355
Effect of foreign currency translation	3,786			(1,035		)	1,948		4,699
Measurement-period adjustments	(4,092		)	—			4,036		(56		)
Balance at March 31, 2019	$	5,529,781		$	483,726		$	332,491	$	6,345,998

There were no accumulated impairment losses for goodwill as of March 31, 2019 or December 31, 2018.