Annual report pursuant to Section 13 and 15(d)

Organization and Summary of Significant Accounting Policies - Additional Information (Detail)

v3.3.1.900
Organization and Summary of Significant Accounting Policies - Additional Information (Detail)
$ in Thousands
 12 Months Ended
Oct. 31, 2015
USD ($)
Dec. 31, 2015
USD ($)
employee
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Restructuring Cost and Reserve [Line Items]        
Allowance for Doubtful Accounts Receivable   $ 200 $ 100  
Depreciation   8,700 2,600  
Impairment of Intangible Assets (Excluding Goodwill) $ 17,800 $ 21,600 $ 0 $ 0
Percentage Of Revenue From Companys Distributors   13.00% 28.00% 29.00%
Term Of Invoice Of Distributor   30 days    
Product Warranty Expense   $ 200 $ 100 $ 0
Number of operating segments   1    
Minimum [Member]        
Restructuring Cost and Reserve [Line Items]        
Product warranty period   1 year    
Maximum [Member]        
Restructuring Cost and Reserve [Line Items]        
Product warranty period   3 years    
Entropic Communications [Member]        
Restructuring Cost and Reserve [Line Items]        
Number of employees terminated | employee   87