Goodwill and Intangible Assets, Net

3 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

will and Intangible Assets, Net

Intangible assets consist primarily of developed technology and patent licenses from business combinations. Acquired intangibles are amortized on a straight-line basis over the respective estimated useful lives of the assets.

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



					March 31, 2019
	Weighted Average Life (Years)	Weighted Average Remaining Life (Years)	Cost		Accumulated Amortization			Net Book Value
Developed technology	5 years	3.5	$	26,356	$	(5,580	)	$	20,776
Patent licenses	14 years	5.4	1,387		(847		)	540
Total intangibles subject to amortization			$	27,743	$	(6,427	)	21,316
Intangible assets not subject to amortization								40
Total intangible assets, net								$	21,356

					December 31, 2018
	Weighted Average Life (Years)	Weighted Average Remaining Life (Years)	Cost		Accumulated Amortization			Net Book Value
Developed technology	5 years	3.8	$	25,456	$	(4,085	)	$	21,371
Patent Licenses	14 years	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 asset amortization expense was $1.5 million and $0.6 million for the three months ended March 31, 2019 and 2018, respectively.

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



2019 (remaining nine months)	$	4,561
2020	6,081
2021	6,081
2022	4,427
2023	100
2024 and thereafter	66
Total expected future amortization expense	$	21,316

Goodwill, which is not subject to amortization, totaled $7.3 million and $7.2 million as of March 31, 2019 and December 31, 2018, respectively.

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

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