Goodwill and Intangible Assets

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

The changes in the carrying amount of goodwill for the six months ended June 30, 2021 are as follows:


	Business		Consumer		Consolidated
	(In thousands)
Balance as of December 31, 2020	$	87,168	$	8,024	$	95,192
Adjustments to goodwill:
Foreign exchange adjustment	(76)		—		(76)
Balance as of June 30, 2021	$	87,092	$	8,024	$	95,116

Intangible Assets

Intangible assets are summarized as follows:


	As of June 30, 2021
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted Average Amortization Period
	(In thousands)
Amortizing intangible assets:
Technology	$	30,463	$	(27,585)	$	2,878	5.3 years
Customer relationships	16,976		(14,397)		2,579		8.4 years
Patents	6,452		(1,018)		5,434		12.7 years
Other	314		(235)		79		2.2 years
Total	$	54,205	$	(43,235)	$	10,970


	As of December 31, 2020
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted Average Amortization Period
	(In thousands)
Amortizing intangible assets:
Technology	$	30,499	$	(26,818)	$	3,681	5.4 years
Customer relationships	16,981		(13,982)		2,999		8.4 years
Patents	5,076		(908)		4,168		12.5 years
Other	314		(235)		79		2.2 years
Total	$	52,870	$	(41,943)	$	10,927

Amortization expense is calculated over the estimated useful life of the asset. Aggregate amortization expense for intangible assets was $1.6 million and $0.7 million for the three months ended June 30, 2021 and 2020, respectively, and $3.1 million and $1.4 million for the six months ended June 30, 2021 and 2020, respectively. For the three and six months ended June 30, 2021 and 2020, respectively, a portion of this amortization is included in cost of revenue. Estimated amortization expense for the next five years is as follows:


	Estimated Amortization Expense
	(In thousands)
Remaining 2021	$	1,322
2022	2,274
2023	992
2024	790
2025	369
Thereafter	5,223
Total	$	10,970