Goodwill and Intangible Assets, Net (Tables)

9 Months Ended

Sep. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Carrying value of intangible assets

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

					September 30, 2019
	Weighted Average Life (Years)	Weighted Average Remaining Life (Years)	Cost		Accumulated Amortization			Net Book Value
Developed technology	5	3.0	$	26,356	$	(8,570	)	$	17,786
Patent licenses	14	4.9	1,387		(897		)	490
Total intangibles subject to amortization			$	27,743	$	(9,467	)	18,276
Intangible assets not subject to amortization								40
Total intangible assets, net								$	18,316
					December 31, 2018
	Weighted Average Life (Years)	Weighted Average Remaining Life (Years)	Cost		Accumulated Amortization			Net Book Value
Developed technology	5	3.8	$	25,456	$	(4,085	)	$	21,371
Patent Licenses	14	5.9	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 of September 30, 2019, the Company expects amortization expense in future periods to be as follows