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Goodwill and Intangible Assets - Narratives (Details)
$ in Thousands
3 Months Ended
Apr. 01, 2016
USD ($)
Dec. 31, 2015
USD ($)
Apr. 03, 2015
USD ($)
Goodwill [Line Items]      
Goodwill $ 237,899 $ 197,781  
Number of Reporting Units   2  
Preliminary Recorded Additional Goodwill 39,206    
Goodwill, Impairment Loss 0   $ 0
Video [Member]      
Goodwill [Line Items]      
Goodwill 177,043 $ 136,904  
Preliminary Recorded Additional Goodwill 39,206    
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount   87.00%  
Cable Edge [Member]      
Goodwill [Line Items]      
Goodwill 60,856 $ 60,877  
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount   42.00%  
TVN [Member]      
Goodwill [Line Items]      
Goodwill $ 39,206    
Finite-lived Intangible Assets Acquired   $ 44,800