Quarterly report pursuant to Section 13 or 15(d)

Business Combination - Additional Information (Details)

v3.2.0.727
Business Combination - Additional Information (Details)
$ in Thousands, shares in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Apr. 30, 2015
USD ($)
subsidiary
shares
Oct. 31, 2014
USD ($)
Jun. 30, 2015
USD ($)
Jun. 30, 2014
USD ($)
Jun. 30, 2015
USD ($)
Jun. 30, 2014
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Business Acquisition [Line Items]                  
Stock based compensation expense     $ 4,794 $ 3,685 $ 8,513 $ 7,078      
Remaining fair value step-up included in inventory     38,822   38,822       $ 10,858
Goodwill     48,888   48,888       1,201
2015 RSU Plan [Member]                  
Business Acquisition [Line Items]                  
Period for recognizing stock-based compensation   14 months              
2016 RSU Plan [Member]                  
Business Acquisition [Line Items]                  
Period for recognizing stock-based compensation   26 months              
Continued Employment [Member]                  
Business Acquisition [Line Items]                  
Quarterly installments   $ 200              
Separately recognized transactions, expenses and losses recognized   100              
Working Capital Adjustment                 40
Continued Employment [Member] | Scenario, Forecast [Member]                  
Business Acquisition [Line Items]                  
Separately recognized transactions, expenses and losses recognized             $ 50 $ 70  
RSUs [Member]                  
Business Acquisition [Line Items]                  
Stock based compensation expense     2,400   $ 500        
Maximum value of restricted stock issued for meeting performance targets                 3,250
Period for recognizing stock-based compensation         4 years 4 years      
RSUs [Member] | Former Entropic Stock Plans [Member]                  
Business Acquisition [Line Items]                  
Stock based compensation expense         $ 2,400        
RSUs [Member] | Scenario, Forecast [Member]                  
Business Acquisition [Line Items]                  
Maximum value of restricted stock issued for meeting performance targets             $ 1,625 $ 1,625  
Maximum revenue to average company share price             50.00% 50.00%  
Number of consecutive trading days used to calculated average closing sales price             5 days 5 days  
Entropic Communications [Member]                  
Business Acquisition [Line Items]                  
Number of wholly-owned subsidiaries (in subsidiary) | subsidiary 2                
Cash $ 111,125                
Consideration issued in shares | shares 20.4                
Total consideration given $ 289,391                
Portion of outstanding equity awards deemed to have been outstanding and vested 173,781                
Equity value of shares that were outstanding and vested prior to acquisition 4,485                
Portion of equity awards that have not been vested or earned $ 9,300                
Stock based compensation expense     2,400            
Number of stock options that have not been vested or earned (shares) | shares 1.9                
Capitalized acquisition costs $ 700                
Fair market value step-up in inventory 14,600                
Cost of goods sold recognized related to fair value step-up     13,300            
Remaining fair value step-up included in inventory     1,300   1,300        
Acquisition related costs         5,300        
Intangible assets acquired 92,400                
Revenue of acquiree since acquisition     32,300   32,300        
Earnings of acquiree since acquisition     3,000   3,000        
Goodwill 47,687                
Identifiable intangible assets $ 92,400                
Entropic Communications [Member] | Developed Technology Rights [Member]                  
Business Acquisition [Line Items]                  
Average useful life 7 years                
Entropic Communications [Member] | RSUs [Member]                  
Business Acquisition [Line Items]                  
Number of restricted stock units that have not been vested or earned (shares) | shares 1.3                
Entropic Communications [Member] | Common Stock [Member]                  
Business Acquisition [Line Items]                  
Consideration issued in shares | shares 20.4                
Entropic Communications [Member] | Common Stock [Member] | Former Entropic Stock Plans [Member]                  
Business Acquisition [Line Items]                  
Consideration issued in shares | shares 3.2                
Physpeed [Member]                  
Business Acquisition [Line Items]                  
Cash   9,250              
Total consideration given   9,515              
Equity value of shares that were outstanding and vested prior to acquisition   $ 265              
Acquisition related costs                 300
Percentage of voting interests acquired   100.00%              
Escrow deposit   $ 1,100              
Contingent consideration payments         600        
Goodwill   1,201              
Identifiable intangible assets   $ 10,000              
Average useful life   7 years              
Physpeed [Member] | Continued Employment [Member]                  
Business Acquisition [Line Items]                  
Contingent consideration liability   $ 1,700              
Term of liability   2 years              
Physpeed [Member] | Earn-out Consideration [Member]                  
Business Acquisition [Line Items]                  
Contingent consideration liability   $ 300 $ 100   $ 100       $ 300
Contingent consideration, high range of outcomes   750              
Physpeed [Member] | Earn-out Consideration [Member] | Scenario, Forecast [Member]                  
Business Acquisition [Line Items]                  
Base amount multiplied by revenue percent             $ 375 $ 375  
Physpeed [Member] | Retention and Performance-based Agreements [Member]                  
Business Acquisition [Line Items]                  
Contingent consideration, high range of outcomes   3,250              
Physpeed [Member] | Developed Technology Rights [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets   2,700              
Physpeed [Member] | In Process Research and Development [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets   $ 7,300