Goodwill and Intangible Assets

6 Months Ended

Jun. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

The changes in the carrying amount of goodwill for the six months ended June 30, 2020 are as follows (amounts in thousands):



	Business		Consumer		Consolidated
Balance as of December 31, 2019	$	86,963	$	8,024	$	94,987
Adjustments to goodwill:
Foreign exchange adjustment	2		—		2
Balance as of June 30, 2020	$	86,965	$	8,024	$	94,989

Intangible Assets

Intangible assets are summarized as follows (amounts in thousands):



	As of June 30, 2020
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Amortization Period
Amortizing intangible assets:
Technology	$	30,413	$	(25,973	)	$	4,440	5.3 years
Customer relationships	16,964		(13,461		)	3,503		8.4 years
Patents	3,888		(800		)	3,088		12.9 years
Other	314		(236		)	78		2.2 years
Total	$	51,579	$	(40,470	)	$	11,109



	As of December 31, 2019
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Amortization Period
Amortizing intangible assets:
Technology	$	30,413	$	(25,187	)	$	5,226	5.3 years
Customer relationships	16,964		(12,958		)	4,006		8.4 years
Patents	3,267		(714		)	2,553		12.8 years
Other	262		(235		)	27		2.7 years
Total	$	50,906	$	(39,094	)	$	11,812

Amortization expense is calculated over the estimated useful life of the asset. Aggregate amortization expense for intangible assets was $0.7 million for the three months ended June 30, 2020 and 2019, respectively, and $1.4 million and $1.5 million for the six months ended June 30, 2020 and 2019, respectively. For the three and six months ended June 30, 2020 and 2019, respectively, a portion of this amortization is included in cost of revenue. Estimated amortization expense for the next five years is as follows (amounts in thousands):



	Estimated Amortization Expense
Remaining 2020	$	1,375
2021	2,551
2022	2,199
2023	917
2024	719
Thereafter	3,348
Total	$	11,109