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Description of Business, Including Segment and Geographic Area Information - Additional Information (Details)
12 Months Ended
Dec. 31, 2016
Reportable_Segments
Customer
Dec. 31, 2015
Dec. 31, 2014
Customer
Segment Reporting Information [Line Items]      
Number of reportable segments | Reportable_Segments 2    
Direct sales to major customer | Sales Revenue Segment      
Segment Reporting Information [Line Items]      
Sales to major customer   11.00%  
Customer accounted for 10% or more of revenue | Customer 0   0