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Acquisition Purchase Price Allocation (Details) (USD $) In Thousands, unless otherwise specified |  |  | 0 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Jan. 12, 2012 ADAPTIX, Inc. [Member] | Dec. 31, 2013 ADAPTIX, Inc. [Member]
Business Acquisition [Line Items] |  |  |  |
Fair value of net tangible assets acquired |  |  | $ 10,000 |
Intangible assets acquired - patents |  |  | 150,000 |
Goodwill | 30,149 | 30,149 | 30,149 |
Net deferred income tax liability |  |  | (30,149) |
Total |  |  | 160,000 |
Patents, useful life |  |  | 10 years | 10 years
Patents, future annual amortization expense per year |  |  | $ 15,000 |

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- Definition Amount of deferred tax liability attributable to taxable temporary differences due after one year or the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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