Goodwill and Intangible Assets

3 Months Ended

Mar. 31, 2020

Goodwill

Changes in Goodwill balance were as follows:


	Total
	(In thousands)
Balance as of December 31, 2019	$	2,296,784
Measurement period adjustments	(5,147)
Balance as of March 31, 2020	$	2,291,637

Intangible assets

Intangible assets consisted of the following:


	As of March 31, 2020
	Gross		Accumulated Amortization		Net

Amortizable intangible assets:	(In thousands)
Developed technology	$	334,599	$	(67,259)	$	267,340
Customer relationships	185,594		(33,296)		152,298
Supplier relationships	4,356		(2,006)		2,350
Trade names	20,060		(4,727)		15,333
Patent	2,905		(288)		2,617
Total amortizable intangible assets	547,514		(107,576)		439,938
Non-amortizable intangible assets:
Telecommunication licenses	4,920		—		4,920
Domain names	32		—		32
Trademarks and other	263		—		263
Total	$	552,729	$	(107,576)	$	445,153


	As of December 31, 2019
	Gross		Accumulated Amortization		Net

Amortizable intangible assets:	(In thousands)
Developed technology	$	333,980	$	(55,390)	$	278,590
Customer relationships	182,339		(26,347)		155,992
Supplier relationships	4,356		(1,532)		2,824
Trade name	20,060		(3,727)		16,333
Patent	2,707		(262)		2,445
Total amortizable intangible assets	543,442		(87,258)		456,184
Non-amortizable intangible assets:
Telecommunication licenses	4,370		—		4,370
Domain names	32		—		32
Trademarks and other	263		—		263
Total	$	548,107	$	(87,258)	$	460,849

Amortization expense was $20.3 million and $13.6 million for the three months ended March 31, 2020 and 2019, respectively.

Total estimated future amortization expense is as follows: