
	December 31, 2020						December 31, 2019
	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Finite-lived intangible assets
Customer relationships	$	5,598,175	$	(261,350)	$	5,336,825	$	280,493	$	(180,571)	$	99,922
Databases and content	1,848,041		(464,683)		1,383,358		1,755,323		(342,385)		1,412,938
Computer software	658,976		(209,611)		449,365		285,701		(135,919)		149,782
Trade names	18,606		(2,360)		16,246		1,570		—		1,570

Backlog	29,216		(5,905)		23,311		—		—		—
Finite-lived intangible assets	8,153,014		(943,909)		7,209,105		2,323,087		(658,875)		1,664,212
Indefinite-lived intangible assets
Trade names	161,245		—		161,245		164,428		—		164,428
Total intangible assets	$	8,314,259	$	(943,909)	$	7,370,350	$	2,487,515	$	(658,875)	$	1,828,640

The Company performed the indefinite-lived impairment test as of October 1, 2020 and 2019. Additionally, the Company reviewed goodwill for indicators of impairment at December 31, 2020 and 2019. As part of this analysis, the Company determined that its trade name, with a carrying value of $161,245, and $164,428 as of December 31, 2020 and 2019, respectively, was not impaired and will continue to be reported as indefinite-lived intangible assets.

In September and November 2019, the Company purchased the key business assets of SequenceBase and Darts-ip. As a result of the purchase, customer relations balance increased $3,641, computer software increased $11,525, databases and content increased $22,012 and finite-lived trade names increased $1,541. See Note 4 - Business Combinations for further details.

On January 1, 2020, all assets, liabilities, and equity interest of the Brand Protection, AntiPiracy, and AntiFraud solutions of the MarkMonitor Product Line were sold to OpSec Security for a purchase price of $3,751, which was determined to be the approximation of the fair value. At December 31, 2019, the assets and liabilities related to the divestment met the criteria for classification as Assets held for sale on the Company’s balance sheet, which included $36,924 of intangible assets. In addition, the Company compared the book value of the assets and liabilities to the purchase price and recorded a total

impairment charge during the year ended December 31, 2019 of $18,431, which included the write down of the $17,967 intangible assets classified as Assets held for sale. See Note 5 - Assets Held for Sale and Divested Operations for further details.

In June 2020, the Company acquired the assets of CustomersFirst Now for a purchase price of $6,446, which was accounted for as an asset acquisition. As a result, the Company's identifiable intangible assets increased by $6,446, which consisted of $5,446 of databases and content and $1,000 of computer software. The databases and process methodology and the computer software have a remaining weighted average amortization period of 5.0 years and 3.0 years, respectively. The total remaining weighted average amortization period is 4.7 years.

The weighted-average amortization period for each class of finite-lived intangible assets and for total finite-lived intangible assets, which range between 2 and 20 years, is as follows:


			Remaining Weighted - Average Amortization Period (in years)
Customer relationships			22.22
Databases and content			13.68
Computer software			9.62
Trade names			5.39
Backlog			4.04
Total			19.73


2021	$	503,174
2022	466,526
2023	422,536
2024	400,836
2025	392,076
Thereafter	5,002,280
Subtotal finite-lived intangible assets	7,187,428
Internally developed software projects in process	21,677
Total finite-lived intangible assets	7,209,105
Intangibles with indefinite lives	161,245
Total intangible assets	$	7,370,350


	Science Segment		Intellectual Property Segment		Consolidated Total
Balance as of December 31, 2018	$	908,406	$	374,513	$	1,282,919
Acquisition	—		44,779		44,779
Transferred to Assets held for sale	—		(468)		(468)
Impact of foreign currency fluctuations and other	1,531		(716)		815
Balance as of December 31, 2019	$	909,937	$	418,108	$	1,328,045
Acquisition	497,263		4,202,875		4,700,138
Divestiture	—		(9,129)		(9,129)
Impact of foreign currency fluctuations and other	607		232,975		233,582
Balance as of December 31, 2020	$	1,407,807	$	4,844,829	$	6,252,636

The Company performed the goodwill impairment test as of October 1, 2020 and 2019. Additionally, the Company reviewed goodwill for indicators of impairment at December 31, 2020 and 2019. As of December 31, 2020, 2019 and 2018, the accumulated goodwill impairment was $0.

Goodwill represents the purchase price in excess of the fair value of the net assets acquired in a business combination. If the carrying value of a reporting unit exceeds the implied fair value of that reporting unit, an impairment charge to goodwill is recognized for the excess. The Company’s reporting units are one level below the operating segment, as determined in accordance with ASC 350. For the years ended December 31, 2020 and 2019, the Company had six and five reporting units, respectively.

The Company estimates the fair value of its reporting units using the income approach. Under the income approach, the fair value of a reporting unit is calculated based on the present value of estimated cash flows. No indicators of impairment existed as a result of the Company’s assessments, except for the sale of the Brand Protection, AntiPiracy, and AntiFraud solutions of the MarkMonitor Product Line.

On January 1, 2020, all assets, liabilities, and equity interest of the Brand Protection, AntiPiracy, and AntiFraud solutions of the MarkMonitor Product Line were sold to OpSec Security for a purchase price of $3,751, which was determined to be the approximation of the fair value. At December 31, 2019, the assets and liabilities related to the divestment met the criteria for classification as Assets held for sale on the Company’s balance sheet, which included $468 of goodwill. In addition, the Company compared the book value of the assets and liabilities to the purchase price and recorded a total impairment charge during the year ended December 31, 2019 of $18,431, which included the write down of the $468 goodwill classified as Assets held for sale. See Note 5 - Assets Held for Sale and Divested Operations for further details.

On November 23, 2020, the Company acquired Hanlim IPS. Co., Ltd. (Hanlim), which included $2,861 of goodwill. See Note 4 - Business Combinations for further details. This goodwill balance is allocated to the Intellectual Property segment.

On October 26, 2020, the Company acquired Beijing IncoPat Technology Co. Ltd., which included $40,474 of goodwill. See Note 4 - Business Combinations for further details. This goodwill balance is allocated to the Intellectual Property segment.