Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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Business Combinations - Schedule of Acquired Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified																	0 Months Ended		0 Months Ended					6 Months Ended			6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 In Process Research and Development [Member]	Dec. 31, 2013 In Process Research and Development [Member]	Jun. 30, 2014 Developed Technology [Member]	Dec. 31, 2013 Developed Technology [Member]	Jun. 30, 2014 Content [Member]	Dec. 31, 2013 Content [Member]	Jun. 30, 2014 Customer Relationships [Member]	Dec. 31, 2013 Customer Relationships [Member]	Jun. 30, 2014 Contract Backlog [Member]	Dec. 31, 2013 Contract Backlog [Member]	Jun. 30, 2014 Trade Names [Member]	Dec. 31, 2013 Trade Names [Member]	May 09, 2014 nPulse Technologies [Member]	May 09, 2014 nPulse Technologies [Member] In Process Research and Development [Member]	May 09, 2014 nPulse Technologies [Member] Developed Technology [Member]	May 09, 2014 nPulse Technologies [Member] Developed Technology [Member]	May 09, 2014 nPulse Technologies [Member] Customer Relationships [Member]	May 09, 2014 nPulse Technologies [Member] Customer Relationships [Member]	Jun. 30, 2014 Mandiant, Inc. [Member]	Jun. 30, 2014 Mandiant, Inc. [Member] In Process Research and Development [Member]	Jun. 30, 2014 Mandiant, Inc. [Member] Developed Technology [Member]	Jun. 30, 2014 Mandiant, Inc. [Member] Content [Member]	Jun. 30, 2014 Mandiant, Inc. [Member] Customer Relationships [Member]	Jun. 30, 2014 Mandiant, Inc. [Member] Contract Backlog [Member]	Jun. 30, 2014 Mandiant, Inc. [Member] Trade Names [Member]	Jun. 30, 2014 Mandiant, Inc. [Member] Minimum [Member] Developed Technology [Member]	Jun. 30, 2014 Mandiant, Inc. [Member] Minimum [Member] Contract Backlog [Member]	Jun. 30, 2014 Mandiant, Inc. [Member] Maximum [Member] Developed Technology [Member]	Jun. 30, 2014 Mandiant, Inc. [Member] Maximum [Member] Contract Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life																	6 years		8 years					10 years	8 years		4 years	4 years	1 year	6 years	3 years
Finite lived acquired assets																		$ 10,100		$ 8,000			$ 54,600	$ 128,600	$ 65,400	$ 13,800	$ 12,400
Indefinite lived acquired assets																6,600						1,400
Intangible assets															24,700						276,200
Intangible assets, gross	300,493	281,493			70,393	60,093	128,600	128,500	75,300	67,900	13,800	12,600	12,400	12,400
Less: accumulated amortization	(23,500)	(1,516)
Total intangible assets subject to amortization	276,993	279,977
In-process research and development	7,800		7,800	1,400
Total net intangible assets	$ 284,793	$ 281,377