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Acquisitions (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 29, 2015
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Business Acquisition [Line Items]        
Payments to acquire business   $ 8,393 $ 0 $ 0
Xennia Technology Ltd. [Member]        
Business Acquisition [Line Items]        
Payments to acquire business $ 8,393      
Purchase price excess on carrying value of the net assets allocated to intangible assets and goodwill 6,200      
Acquisition related costs   $ 800    
Xennia Technology Ltd. [Member] | Intangible Assets [Member]        
Business Acquisition [Line Items]        
Purchase price excess on carrying value of the net assets allocated to intangible assets and goodwill 1,100      
Xennia Technology Ltd. [Member] | Trade Names [Member]        
Business Acquisition [Line Items]        
Purchase price excess on carrying value of the net assets allocated to intangible assets and goodwill 600      
Xennia Technology Ltd. [Member] | Goodwill [Member]        
Business Acquisition [Line Items]        
Purchase price excess on carrying value of the net assets allocated to intangible assets and goodwill $ 4,500