Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and Intangible Assets

Changes in the carrying amount of goodwill for the year ended December 31, 2020 and December 31, 2019 are as follows:

(in thousands)	Amount
Balance as of December 31, 2018	$	6,670
Foreign currency translation	(347)
Balance as of December 31, 2019	6,323
Foreign currency translation	602
Balance as of December 31, 2020	$	6,925

The Company’s other intangible assets at December 31, 2020 and December 31, 2019 consisted of the following:

	December 31, 2020							December 31, 2019
(in thousands)	Gross Carrying Amount		Accumulated Amortization	Impairment		Net		Gross Carrying Amount		Accumulated Amortization	Impairment		Net
Other intangible assets:
Developed technology	$	798,260	($254,629)	$	—	$	543,631	$	797,760	($214,220)	$	—	$	583,540
Trade name	27,343		—	—		27,343		27,200		—	—		27,200
Service provider network	2,000		—	—		2,000		2,000		—	—		2,000
Customer relationships	19,072		(4,042)	—		15,030		18,058		(2,993)	—		15,065
Software	10,865		(9,693)	—		1,172		9,861		(5,347)	(992)		3,522
Other	100		(75)	—		25		100		(58)	—		42
Total intangible assets	$	857,640	($268,439)	$	—	$	589,201	$	854,979	($222,618)	($992)		$	631,369

During the Company's annual impairment testing conducted for the year ended December 31, 2019, the Company recorded an impairment charge of $1.0 million associated with its Verigo software following a partnership agreement with a new technology provider. During 2019, the Company accelerated the amortization of RipeLock developed technology based on the Company's remaining expected useful life of the technology. This resulted in an increase to amortization expense of $34.0 million.

At December 31, 2020, the weighted-average amortization periods remaining for developed technology, customer relationships, software and other was 14.4, 11.8, 1.0 and 1.5 years, respectively. At December 31, 2020, the weighted-average amortization periods remaining for these finite-lived intangible assets was 14.3 years.

Amortization expense for intangible assets was $43.7 million, $81.1 million and $45.9 million for the years ended December 31, 2020, 2019 and 2018, respectively.

Estimated annual amortization expense for finite-lived intangible assets subsequent to December 31, 2020 is as follows:

(in thousands)	Amount
2021	$	41,793
2022	40,983
2023	40,870
2024	40,870
2025	40,870
Thereafter	354,472
Total	$	559,858