Annual report pursuant to Section 13 and 15(d)

Restructuring Activity (Details)

v3.6.0.2
Restructuring Activity (Details)
 12 Months Ended
Dec. 31, 2016
USD ($)
employee
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Restructuring Cost and Reserve [Line Items]      
Operating Leases, Rent Expense, Sublease Rentals $ 1,300,000    
Restructuring charges 3,432,000 $ 14,086,000 $ 0
Restructuring Liability Rollforward      
Liability as of December 31, 2015   0  
Restructuring charges 3,432,000 14,086,000 0
Cash payments (6,424,000)    
Non-cash charges 112,000    
Liability as of December 31, 2016 536,000   0
Employee Separation Expenses [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 1,038,000    
Restructuring Liability Rollforward      
Liability as of December 31, 2015   0  
Restructuring charges 1,038,000    
Cash payments (1,047,000)    
Non-cash charges (66,000)    
Liability as of December 31, 2016 0   0
Facility Closing [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 100,000    
Restructuring Liability Rollforward      
Restructuring charges 100,000    
Lease Related Impairment [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 2,264,000    
Restructuring Liability Rollforward      
Liability as of December 31, 2015   0  
Restructuring charges 2,264,000    
Cash payments (4,039,000)    
Non-cash charges 244,000    
Liability as of December 31, 2016 499,000   0
Other Restructuring [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 130,000    
Restructuring Liability Rollforward      
Liability as of December 31, 2015   0  
Restructuring charges 130,000    
Cash payments (1,338,000)    
Non-cash charges (66,000)    
Liability as of December 31, 2016 37,000   $ 0
Restructuring Plan, 2016 [Member] | Lease Related Impairment [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 186,300    
Restructuring Liability Rollforward      
Restructuring charges $ 186,300    
Entropic Communications [Member]      
Restructuring Cost and Reserve [Line Items]      
Acquisition related costs   2,463,000  
Number of employees terminated | employee 87    
Restructuring charges   14,086,000  
Restructuring Liability Rollforward      
Liability as of December 31, 2015 $ 3,416,000    
Restructuring charges   14,086,000  
Cash payments   (5,842,000)  
Non-cash charges   (7,291,000)  
Liability as of December 31, 2016   3,416,000  
Entropic Communications [Member] | Employee Separation Expenses [Member]      
Restructuring Cost and Reserve [Line Items]      
Acquisition related costs   0  
Restructuring Costs 5,500,000    
Restructuring charges   5,533,000  
Restructuring Liability Rollforward      
Liability as of December 31, 2015 75,000    
Restructuring charges   5,533,000  
Cash payments   (3,913,000)  
Non-cash charges   (1,545,000)  
Liability as of December 31, 2016   75,000  
Entropic Communications [Member] | Facility Closing [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 2,650,000    
Restructuring Liability Rollforward      
Restructuring charges 2,650,000    
Entropic Communications [Member] | Lease Related Impairment [Member]      
Restructuring Cost and Reserve [Line Items]      
Acquisition related costs   984,000  
Restructuring charges   8,163,000  
Restructuring Liability Rollforward      
Liability as of December 31, 2015 2,030,000    
Restructuring charges   8,163,000  
Cash payments   (1,645,000)  
Non-cash charges   (5,472,000)  
Liability as of December 31, 2016   2,030,000  
Entropic Communications [Member] | Impairment Of Leasehold Improvements [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 5,245,000    
Restructuring Liability Rollforward      
Restructuring charges 5,245,000    
Entropic Communications [Member] | Other Restructuring [Member]      
Restructuring Cost and Reserve [Line Items]      
Acquisition related costs   1,479,000  
Restructuring charges   390,000  
Restructuring Liability Rollforward      
Liability as of December 31, 2015 1,311,000    
Restructuring charges   390,000  
Cash payments   (284,000)  
Non-cash charges   (274,000)  
Liability as of December 31, 2016   $ 1,311,000  
Share Distribution [Member] | Entropic Communications [Member] | Employee Separation Expenses [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring Costs 1,491,000    
Entropic [Member] | Lease Related Impairment [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 2,000,000    
Restructuring Liability Rollforward      
Restructuring charges $ 2,000,000