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Commitments and Contingencies Gain Contingencies (Details) $ in Thousands | 1 Months Ended |  |
--- | --- | --- | ---
Feb. 28, 2012 USD ($) | Dec. 31, 2014 USD ($) | Jan. 31, 2007 principals
Other Litigation |  |  |
Gain Contingencies |  |  |
Loss contingency, estimate of possible loss |  | $ 1,000 |
Misappropriation of Trade Secrets [Member] | Biamp |  |  |
Gain Contingencies |  |  |
Gain contingency, number of defendents | principals |  |  | 2
Gain (loss) related to litigation settlement | $ 3,860 |  |
Misappropriation of Trade Secrets [Member] | Other Defendents |  |  |
Gain Contingencies |  |  |
Gain contingency, unrecorded amount |  | $ 7,658 |
Gain (loss) related to litigation settlement | $ 250 |  |

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- Definition The amount or range of possible amounts of gain that could be realized upon the resolution of a contingency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6397426&loc=d3e17499-108355 + Details
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