Goodwill and Intangible Assets, Net (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Carrying value of intangible assets

The carrying values of intangible assets as of December 31, 2018 are as follows (in thousands):

					December 31,
					2018
	Weighted Average Lives	Weighted Remaining Average Lives	Cost		Accumulated Amortization			Net Book Value
Developed technology	5 years	4 years	$	25,456	$	(4,085	)	$	21,371
Patent licenses	14 years	6 years	1,387		(822		)	565
Total intangibles subject to amortization			$	26,843	$	(4,907	)	21,936
Intangible assets not subject to amortization								40
Total intangible assets, net								$	21,976

Intangible assets future periods amortization expense

As ofDecember 31, 2018, the Company expects amortization expense in future periods to be as follows (in thousands):

2019	$	5,856
2020	5,856
2021	5,856
2022	4,202
2023	100
2024 and thereafter	66
Total expected future amortization expense	$	21,936