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Intangible Assets (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
USD ($)
Jun. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
Apr. 01, 2017
USD ($)
Sep. 29, 2018
USD ($)
Sep. 30, 2017
USD ($)
Installment
Dec. 30, 2017
USD ($)
Finite-Lived Intangible Assets [Line Items]              
Impairment of acquired intangible assets $ 586 $ 11,900 $ 36,198   $ 12,486 $ 36,198  
Proceeds from sale of intangible assets, number of installments | Installment           2  
Accumulated amortization, intangible assets 98,900       98,900   $ 100,300
Amortization of acquired intangible assets 3,837   8,654   14,246 $ 26,219  
Research and development              
Finite-Lived Intangible Assets [Line Items]              
Amortization of acquired intangible assets 14   128   264 442  
Amortization of acquired intangible assets              
Finite-Lived Intangible Assets [Line Items]              
Amortization of acquired intangible assets $ 3,823   $ 8,526   $ 13,982 25,777  
Patents              
Finite-Lived Intangible Assets [Line Items]              
Proceeds from sale of intangible assets       $ 18,000      
Decrease of intangible assets, net of amortization           $ 3,500  
Disposed of by sale | Hyderabad              
Finite-Lived Intangible Assets [Line Items]              
Ownership percentage   100.00%          
Silicon Image, Inc | Developed Technology Rights              
Finite-Lived Intangible Assets [Line Items]              
Impairment of acquired intangible assets   $ 36,200