Annual report pursuant to Section 13 and 15(d)

Business Combination - Purchase Price Allocation (Details)

v3.6.0.2
Business Combination - Purchase Price Allocation (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jul. 01, 2016
Apr. 28, 2016
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Business Acquisition [Line Items]          
Goodwill     $ 76,015 $ 49,779 $ 1,201
Wireless Infrastructure Backhaul Business of Broadcom Corporation [Member]          
Business Acquisition [Line Items]          
Finite-lived Intangible Assets Acquired     $ 34,000    
Average useful life     4 years 10 months 25 days    
Inventory $ 8,715 $ 912      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other 2,181 21      
Fixed assets 1,616 13,600      
Business Combination, Finite and Indefinite Lived Intangible Assets Acquired 56,300 (12) $ 56,300    
Business Combination, Accrued expenses and other current liabilities (5,911) (456)      
Business Combination, Accrued compensation (2,202) 14,065      
Total identifiable net assets 60,699 6,935      
Goodwill 19,301 $ 21,000 19,301    
Business Combination, Purchase price $ 80,000        
Entropic Communications [Member]          
Business Acquisition [Line Items]          
Finite-lived Intangible Assets Acquired       74,200  
Goodwill       $ 48,578  
Developed Technology Rights [Member] | Wireless Infrastructure Backhaul Business of Broadcom Corporation [Member]          
Business Acquisition [Line Items]          
Finite-lived Intangible Assets Acquired     $ 19,100    
Average useful life     7 years    
Customer Relationships [Member] | Wireless Infrastructure Backhaul Business of Broadcom Corporation [Member]          
Business Acquisition [Line Items]          
Finite-lived Intangible Assets Acquired     $ 12,200    
Average useful life     2 years 6 months    
Backlog [Member] | Wireless Infrastructure Backhaul Business of Broadcom Corporation [Member]          
Business Acquisition [Line Items]          
Finite-lived Intangible Assets Acquired     $ 1,900    
Average useful life     6 months    
Noncompete Agreements [Member] | Wireless Infrastructure Backhaul Business of Broadcom Corporation [Member]          
Business Acquisition [Line Items]          
Finite-lived Intangible Assets Acquired     $ 800    
Average useful life     3 years