Goodwill and Acquired Intangible Assets

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

The changes in the carrying amount of goodwill for the years ended December 31, 2016 and 2015 were as follows (in thousands):



	2016			2015
Beginning balance	$	1,150,244		$	1,051,294
Acquisition of Xerocole, Inc.	—			12,859
Acquisition of Codemate A/S	—			69,445
Acquisition of Bloxx Limited	—			17,694
Acquisition of Concord Systems, Inc.	1,079			—
Acquisition of Soha Systems, Inc.	43,515			—
Acquisition of Cyberfend, Inc.	38,754			—
Foreign currency translation	(5,089		)	(1,048		)
Ending balance	$	1,228,503		$	1,150,244

Acquired intangible assets that are subject to amortization consisted of the following as of December 31, 2016 and 2015 (in thousands):



	December 31, 2016							December 31, 2015
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Completed technologies	$	119,091	$	(50,823	)	$	68,268	$	120,791	$	(58,633	)	$	62,158
Customer-related intangible assets	192,810		(114,209		)	78,601		191,710		(102,872		)	88,838
Non-compete agreements	5,030		(3,775		)	1,255		6,540		(3,374		)	3,166
Trademarks and trade names	3,700		(2,361		)	1,339		3,700		(1,767		)	1,933
Acquired license rights	490		(490		)	—		490		(490		)	—
Total	$	321,121	$	(171,658	)	$	149,463	$	323,231	$	(167,136	)	$	156,095

Aggregate expense related to amortization of acquired intangible assets for the years ended December 31, 2016, 2015 and 2014 was $26.6 million, $27.1 million and $32.1 million, respectively. Based on the Company's acquired intangible assets as of December 31, 2016, aggregate expense related to amortization of acquired intangible assets is expected to be approximately $29.2 million, $26.4 million, $25.0 million, $21.1 million and $16.6 million for the years ending December 31, 2017, 2018, 2019, 2020 and 2021, 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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