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Segment Information, Operations By Geographic Area And Customer Concentration (Narrative) (Details) - business_unit
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Number of reportable segments (in segments) 3    
Net Revenue [Member] | None of the customers [Member]      
Concentration Risk, Percentage   10.00% 10.00%
Retail [Member] | Net Revenue [Member] | Best Buy Company Incorporation And Affiliates [Member]      
Concentration Risk, Percentage 15.00%