Annual report pursuant to Section 13 and 15(d)

Business Combination - Acquisition of Intangible Assets (Details)

v3.6.0.2
Business Combination - Acquisition of Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jul. 01, 2016
Apr. 28, 2016
Apr. 30, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Business Acquisition [Line Items]            
Business Acquisition, Date of Acquisition Agreement   Apr. 28, 2016   Jul. 01, 2016    
Cash   $ 21,000   $ 80,000    
Business Acquisition, Name of Acquired Entity   wireless infrastructure access business   wireless infrastructure backhaul business    
Business Combination Pro Forma Information Amortization of Inventory Step Up included in Consolidated Income Statement       $ 5,641 $ 5,641  
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Fair Value Mark Up On Inventory       5,300    
Goodwill       76,015 49,779 $ 1,201
Wireless Infrastructure Access Line Business of of Microsemi Storage Solutions, Inc. [Member]            
Business Acquisition [Line Items]            
Estimated Useful Life (in years)   5 years 6 months 22 days        
Finite-lived Intangible Assets Acquired   $ 12,300   12,300    
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Fair Value Mark Up On Inventory       300    
Business Combination, Finite and Indefinite Lived Intangible Assets Acquired   13,600        
Goodwill       $ 6,935    
Wireless Infrastructure Access Line Business of of Microsemi Storage Solutions, Inc. [Member] | In-process research and development [Member]            
Business Acquisition [Line Items]            
Fair Value, indefinite-lived intangible assets acquired   $ 1,300        
Wireless Infrastructure Access Line Business of of Microsemi Storage Solutions, Inc. [Member] | Developed technology [Member]            
Business Acquisition [Line Items]            
Estimated Useful Life (in years)   7 years        
Finite-lived Intangible Assets Acquired   $ 8,600        
Wireless Infrastructure Access Line Business of of Microsemi Storage Solutions, Inc. [Member] | Customer relationships [Member]            
Business Acquisition [Line Items]            
Estimated Useful Life (in years)   2 years 8 months        
Finite-lived Intangible Assets Acquired   $ 3,100        
Wireless Infrastructure Access Line Business of of Microsemi Storage Solutions, Inc. [Member] | Backlog [Member]            
Business Acquisition [Line Items]            
Estimated Useful Life (in years)   6 months        
Finite-lived Intangible Assets Acquired   $ 500        
Wireless Infrastructure Access Line Business of of Microsemi Storage Solutions, Inc. [Member] | Noncompete Agreements [Member]            
Business Acquisition [Line Items]            
Estimated Useful Life (in years)   3 years        
Finite-lived Intangible Assets Acquired   $ 100        
Wireless Infrastructure Backhaul Business of Broadcom Corporation [Member]            
Business Acquisition [Line Items]            
Estimated Useful Life (in years)       4 years 10 months 25 days    
Finite-lived Intangible Assets Acquired       $ 34,000    
Cash $ 80,000 21,000        
Business Combination Pro Forma Information Amortization of Inventory Step Up included in Consolidated Income Statement       5,305    
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        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net 60,699 6,935        
Goodwill $ 19,301 $ 21,000   19,301    
Wireless Infrastructure Backhaul Business of Broadcom Corporation [Member] | In-process research and development [Member]            
Business Acquisition [Line Items]            
Fair Value, indefinite-lived intangible assets acquired       $ 22,300    
Wireless Infrastructure Backhaul Business of Broadcom Corporation [Member] | Developed technology [Member]            
Business Acquisition [Line Items]            
Estimated Useful Life (in years)       7 years    
Finite-lived Intangible Assets Acquired       $ 19,100    
Wireless Infrastructure Backhaul Business of Broadcom Corporation [Member] | Customer relationships [Member]            
Business Acquisition [Line Items]            
Estimated Useful Life (in years)       2 years 6 months    
Finite-lived Intangible Assets Acquired       $ 12,200    
Wireless Infrastructure Backhaul Business of Broadcom Corporation [Member] | Backlog [Member]            
Business Acquisition [Line Items]            
Estimated Useful Life (in years)       6 months    
Finite-lived Intangible Assets Acquired       $ 1,900    
Wireless Infrastructure Backhaul Business of Broadcom Corporation [Member] | Noncompete Agreements [Member]            
Business Acquisition [Line Items]            
Estimated Useful Life (in years)       3 years    
Finite-lived Intangible Assets Acquired       $ 800    
Entropic Communications [Member]            
Business Acquisition [Line Items]            
Business Acquisition, Date of Acquisition Agreement     Apr. 30, 2015      
Finite-lived Intangible Assets Acquired         74,200  
Cash     $ 111,125      
Goodwill         $ 48,578