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Business Combinations and Goodwill (Narrative) (Details) - USD ($)
10 Months Ended 12 Months Ended
Mar. 10, 2015
Jan. 02, 2016
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Apr. 02, 2016
Dec. 04, 2014
Business Acquisition [Line Items]              
Goodwill impairment     $ 0   $ 0    
Goodwill   $ 267,549,000 269,758,000 $ 267,549,000      
Silicon Image, Inc              
Business Acquisition [Line Items]              
Interests acquired 100.00%           7.00%
Long-term liabilities $ 26,675,000         $ 2,100,000  
Revenue of acquiree since acquisition date, actual   135,600,000          
Net loss of acquiree since acquisition date, actual   77,000,000          
Acquisition related costs   $ 8,200,000          
Goodwill 237,608,000   238,000,000        
Fair value of partially vested stock options and RSUs assumed $ 5,139,000            
Prior Acquisitions              
Business Acquisition [Line Items]              
Goodwill     $ 45,000,000        
Scenario, Adjustment | Silicon Image, Inc              
Business Acquisition [Line Items]              
Acquisition related costs       30,600,000      
Qterics              
Business Acquisition [Line Items]              
Goodwill impairment       $ 13,000,000