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Segment Information (Details Textual)
9 Months Ended
Sep. 30, 2016
segment
Segment Reporting Information [Line Items]  
Number of reportable segments (business segments) 5
Number of consolidated segments 1
Number of segments accounted for as equity method investments 3
Customer Concentration Risk | Sales Revenue, Net  
Segment Reporting Information [Line Items]  
Concentration risk, percentage 10.00%