Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

The estimated useful lives and carrying value of acquired intangible assets are as follows:

		September 30, 2020						December 31, 2019
(in thousands)	Weighted Average Useful Life (years)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Developed technology	3.9	$	12,360	$	10,023	$	2,337	$	10,050	$	9,803	$	247
Customer relationships	8.0	16,350		6,705		9,645		10,920		5,819		5,101
Backlog	3.4	2,240		1,310		930		1,400		1,287		113
Non-compete agreements		460		460		—		460		460		—
Trademarks	3.0	1,770		1,136		634		1,110		1,110		—
Intangible assets, net book value		$	33,180	$	19,634	$	13,546	$	23,940	$	18,479	$	5,461

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Amortization of acquired intangible assets is reflected in the cost of revenue for developed technology and backlog and in operating expenses for the other intangible assets. The estimated future amortization of existing acquired intangible assets as of September 30, 2020 was as follows:

(in thousands)	Future amortization
2020 (remaining three months)	$	863
2021	3,244
2022	2,965
2023	2,444
2024	1,564
2025	679
Thereafter	1,787
Future amortization expense	$	13,546