Intangible Assets

3 Months Ended

Mar. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

7. Intangible Assets

Intangible assets, net consisted of the following as of December 31, 2020:


	Gross Amount		Accumulated Amortization		Net Carrying Value		Amortization Period
Dash acquisition and other intangibles:							(Years)
Customer relationships	$	10,396	$	(5,111)	$	5,285	20




Other, definite lived	3,933		(3,933)		—		2 - 7
Licenses, indefinite lived	764		—		764		Indefinite
Total Dash acquistion and other intangible assets	15,093		(9,044)		6,049

Voxbone acquistion:
Customer relationships	156,559		(1,739)		154,820		15
Developed technology	88,664		(1,478)		87,186		10
Total Voxbone acquisition	245,223		(3,217)		242,006

Total intangible assets, net	$	260,316	$	(12,261)	$	248,055

Intangible assets, net consisted of the following as of March 31, 2021:


	Gross Amount		Accumulated Amortization		Net Carrying Value		Amortization Period
Dash acquisition and other intangibles:							(Years)
Customer relationships	$	10,396	$	(5,241)	$	5,155	20




Other, definite lived	3,933		(3,933)		—		2 - 7
Licenses, indefinite lived	764		—		764		Indefinite
Total Dash acquisition and other intangible assets	15,093		(9,174)		5,919

Voxbone acquisition:
Customer relationships	149,764		(4,161)		145,603		15
Developed technology	84,816		(3,534)		81,282		10
Total Voxbone acquisition	234,580		(7,695)		226,885

Total intangibles, net	$	249,673	$	(16,869)	$	232,804

Amortization expense for definite lived intangible assets was $130 and $4,867 for the three months ended March 31, 2020 and 2021, respectively. The remaining weighted average amortization period for definite lived intangible assets is 13 years.

Future estimated amortization expense for definite lived intangible assets is as follows:


	As of March 31,
	2021
2021 (remaining)	$	14,239
2022	18,986
2023	18,986
2024	18,986
2025	18,986


Thereafter	141,857
	$	232,040