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Goodwill and Intangible Assets

6 Months Ended

Jun. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill balances are presented below (in thousands):



	Carrying Amount
Balance as of December 31, 2016	$	82,534
Goodwill acquired	16,159
Foreign currency translation adjustments	5,737
Balance as of June 30, 2017	$	104,430

Intangible assets consist of the following (in thousands):



	June 30, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Developed technology	$	90,033	$	(39,782	)	$	50,251
Patents	23,780		(1,874		)	21,906
Other	1,775		(1,345		)	430
Total intangible assets	$	115,588	$	(43,001	)	$	72,587

During the six months ended June 30, 2017, we acquired patents with a weighted average useful life of 10 years for an aggregate purchase price of $6.2 million.



	December 31, 2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Developed technology	$	79,206	$	(30,858	)	$	48,348
Patents	17,610		(867		)	16,743
Other	1,775		(1,012		)	763
Total intangible assets	$	98,591	$	(32,737	)	$	65,854

Amortization expense for intangible assets for the three months ended June 30, 2017 and 2016 was approximately $4.8 million and $3.7 million, respectively, and for the six months ended June 30, 2017 and 2016 was approximately $9.5 million and $6.6 million, respectively.

The following table presents the estimated future amortization expense related to intangible assets held at June 30, 2017 (in thousands):



Years Ending December 31,
2017	$	9,502
2018	18,491
2019	18,410
2020	8,585
2021	6,665
Thereafter	10,934
Total future amortization expense	$	72,587

- 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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