Goodwill and Intangible Assets, Net (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Carrying value of intangible assets

The carrying values of intangible assets as of December 31, 2019 are as follows (in thousands, except for years):

					December 31,
					2019
	Weighted Average Lives (Years)	Weighted Remaining Average Lives (Years)	Cost		Accumulated Amortization			Net Book Value
Developed technology	4.6	2.7	$	26,356	$	(10,066	)	$	16,290
Patent licenses	14.0	4.7	1,387		(922		)	465
Total intangibles subject to amortization			$	27,743	$	(10,988	)	16,755
Intangible assets not subject to amortization								40
Total intangible assets, net								$	16,795

					December 31,
					2018
	Weighted Average Lives (Years)	Weighted Remaining Average Lives (Years)	Cost		Accumulated Amortization			Net Book Value
Developed technology	5.0	3.8	$	25,456	$	(4,085	)	$	21,371
Patent licenses	14.0	5.9	1,388		(822		)	565
Total intangibles subject to amortization			$	26,844	$	(4,907	)	21,936
Intangible assets not subject to amortization								40
Total intangible assets, net								$	21,976

Intangible assets future periods amortization expense

As of December 31, 2019, the Company expects amortization expense in future periods to be as follows (in thousands):

2020	$	6,081
2021	6,081
2022	4,427
2023	100
2024	66
2025 and thereafter	—
Total expected future amortization expense	$	16,755

Schedule of Goodwill

Changes in the carrying amount of goodwill for the years ended December 31, 2019, 2018 and 2017 were as follows (in thousands):

	Amount
Balance as of December 31, 2017	$	1,549
Goodwill acquired	5,676
Balance as of December 31, 2018	7,225
Goodwill acquired	100
Adjustment	122
Balance as of December 31, 2019	$	7,447