Intangible Assets

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

The following table summarizes the gross carrying amount and accumulated amortization for the intangible assets (in thousands):


	September 30, 2020
	Gross		Accumulated Amortization		Net		Weighted Average Amortization Period (Years)
Media service rights	$	35,934	$	(23,135)	$	12,799	1.7
Promotion service rights	33,548		(15,072)		18,476		2.7
Developed technologies	27,170		(17,344)		9,826		2.7
Customer relationships	22,690		(15,211)		7,479		2.8
Data access rights	10,801		(7,825)		2,976		1.6
Domain names	5,948		(5,590)		358		0.1
Trade names	2,823		(2,135)		688		0.6
Vendor relationships	2,510		(2,510)		—		0.0
Patents	975		(900)		75		2.1
Registered users	420		(420)		—		0.0
	$	142,819	$	(90,142)	$	52,677	2.5


	December 31, 2019
	Gross		Accumulated Amortization		Net		Weighted Average Amortization Period (Years)
Media service rights	$	34,684	$	(16,098)	$	18,586	2.2
Promotion service rights	30,548		(10,682)		19,866		3.6
Developed technologies	27,170		(12,790)		14,380		3.2
Customer relationships	22,690		(12,267)		10,423		3.3
Data access rights	10,801		(6,415)		4,386		2.3
Domain names	5,948		(5,540)		408		0.8
Trade names	2,823		(1,560)		1,263		2.2
Vendor relationships	2,510		(2,172)		338		0.4
Patents	975		(873)		102		2.8
Registered users	420		(420)		—		0.0
	$	138,569	$	(68,817)	$	69,752	3.0

As of September 30, 2020 and December 31, 2019, the Company has a domain name with a gross value of $0.4 million with an indefinite useful life that is not subject to amortization.

Intangible assets subject to amortization are amortized over their useful lives as shown in the table above. Amortization expense related to intangible assets subject to amortization was $6.9 million and $21.3 million during the three and nine months ended September 30, 2020, respectively, and $5.8 million and $17.7 million during the three and nine months ended September 30, 2019, respectively. Estimated future amortization expense related to intangible assets as of September 30, 2020 is as follows (in thousands):


	Total
2020, remaining three months	$	7,233
2021	22,959
2022	14,739
2023	6,585
2024	809
2025 and beyond	—
Total estimated amortization expense	$	52,325

As of September 30, 2020, the Company performed an analysis of the impact of recent events, including business and market disruption caused by COVID-19, on the fair values of its intangible assets, and determined that an impairment does not exist. However, there can be no assurances that intangible assets will not be impaired in future periods and the Company will continue to monitor the operating results, cash flow forecasts and challenges from declines in current market conditions, as well as impacts of COVID-19 for these intangible assets.