Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets Goodwill and Intangibles Other (Details 2)

v3.3.1.900
Goodwill and Intangible Assets Goodwill and Intangibles Other (Details 2) - USD ($)
$ in Thousands
 12 Months Ended
Oct. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Apr. 30, 2015
Indefinite-lived Intangible Assets [Line Items]          
Transfers into developed technology from IPR&D   $ (700)      
Impairment of Intangible Assets (Excluding Goodwill) $ (17,800) (21,600) $ 0 $ 0  
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)   21,600 0 $ 0  
Entropic Communications [Member]          
Indefinite-lived Intangible Assets [Line Items]          
Identifiable intangible assets         $ 92,400
CDR [Member]          
Indefinite-lived Intangible Assets [Line Items]          
Impairment of Intangible Assets (Excluding Goodwill)   (3,800)      
Merlot [Member]          
Indefinite-lived Intangible Assets [Line Items]          
Impairment of Intangible Assets (Excluding Goodwill)   (17,800)      
Indefinite-lived Intangible Assets [Member]          
Indefinite-lived Intangible Assets [Line Items]          
Other Indefinite-lived Intangible Assets   3,200 $ 7,300    
Indefinite-lived Intangible Assets, Purchase Accounting Adjustments   18,200      
Transfers into developed technology from IPR&D   (700)      
Impairment of Intangible Assets (Excluding Goodwill)   $ (21,600)      
Indefinite-lived Intangible Assets [Member] | Entropic Communications [Member]          
Indefinite-lived Intangible Assets [Line Items]          
Identifiable intangible assets         $ 18,100