Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets Goodwill and Intangibles Other (Details 1)

v3.10.0.1
Goodwill and Intangible Assets Goodwill and Intangibles Other (Details 1) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Asset, Useful Life 6 years 1 month 6 days    
Intangibles assets, Gross $ 377,031 $ 379,631  
Finite-Lived Intangible Assets, Accumulated Amortization (136,531) (68,986)  
Finite-Lived Intangible Assets, Net 240,500 310,645 $ 81,861
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 56,819    
Finite-Lived Intangible Assets, Amortization Expense, Year Two 55,954    
Finite-Lived Intangible Assets, Amortization Expense, Year Three 55,171    
2019 37,641    
2020 25,446    
Transfers into developed technology from IPR&D 0 5,378  
Amortization of Intangible Assets (67,947) (54,694) (16,084)
Impairment of Intangible Assets, Finite-lived 2,198 0  
Finite-Lived Intangible Assets, Amortization Expense, after Year Five 9,469    
Assets, Total [Member]      
Finite-Lived Intangible Assets [Line Items]      
Intangible Assets, Transfer from IPRD to Developed Tech $ 0 32,600  
Licensed Technology [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Asset, Useful Life 3 years 8 months 12 days    
Intangibles assets, Gross $ 2,070 2,070  
Finite-Lived Intangible Assets, Accumulated Amortization (1,130) (575)  
Finite-Lived Intangible Assets, Net $ 940 1,495  
Developed Technology Rights [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Asset, Useful Life 6 years 10 months 24 days    
Intangibles assets, Gross $ 238,961 241,561  
Finite-Lived Intangible Assets, Accumulated Amortization (74,630) (39,252)  
Finite-Lived Intangible Assets, Net $ 164,331 202,309  
Trademarks and Trade Names [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Asset, Useful Life 6 years 1 month 6 days    
Intangibles assets, Gross $ 13,800 13,800  
Finite-Lived Intangible Assets, Accumulated Amortization (4,252) (1,992)  
Finite-Lived Intangible Assets, Net $ 9,548 11,808  
Customer Relationships [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Asset, Useful Life 4 years 7 months 6 days    
Intangibles assets, Gross $ 121,100 121,100  
Finite-Lived Intangible Assets, Accumulated Amortization (55,647) (26,661)  
Finite-Lived Intangible Assets, Net $ 65,453 94,439  
Noncompete Agreements [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Asset, Useful Life 3 years    
Intangibles assets, Gross $ 1,100 1,100  
Finite-Lived Intangible Assets, Accumulated Amortization (872) (506)  
Finite-Lived Intangible Assets, Net 228 594  
Exar and G.hn business [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-lived Intangible Assets Acquired 0    
Entropic Communications [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-lived Intangible Assets Acquired   245,500  
Cost of Sales [Member]      
Finite-Lived Intangible Assets [Line Items]      
Amortization of Intangible Assets (35,821) (25,316) (8,512)
Research and Development Expense [Member]      
Finite-Lived Intangible Assets [Line Items]      
Amortization of Intangible Assets (150) (551) (619)
Selling, general and administrative [Member]      
Finite-Lived Intangible Assets [Line Items]      
Amortization of Intangible Assets $ (31,976) $ (28,827) $ (6,953)