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Litigation (Details)
$ in Thousands
9 Months Ended
Nov. 06, 2012
USD ($)
Sep. 30, 2015
USD ($)
Patent
Lawsuit
Litigation [Abstract]    
Number of intellectual property infringement lawsuits pending | Lawsuit   1
Amount of damages awarded in patent infringement case $ 368,000  
Number of patents allegedly infringed upon by Apple, Inc. | Patent   4
Amount of interest payment awarded up to final judgment, per day   $ 34
Amount of damage infringement payment awarded up to final judgment, per day   $ 330