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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Foreign Export Sales (Details)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Export | Minimum    
Description of Business and Foreign Export Sales    
Term under credit arrangement 30 days  
Export | Maximum    
Description of Business and Foreign Export Sales    
Term under credit arrangement 90 days  
Sales Revenue, Segment | Customer Concentration Risk | Export    
Description of Business and Foreign Export Sales    
Percentage of net sales and trade receivable 27.90% 28.40%
Trade Accounts Receivable | Credit Concentration Risk    
Description of Business and Foreign Export Sales    
Percentage of net sales and trade receivable 21.40% 30.60%