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Description of the Business and Summary of Significant Accounting Policies - Credit Risk (Details) - Credit risk - entity
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Concentration of credit risk    
Number of institutions exposed to credit risk 1  
Accounts receivable    
Concentration of credit risk    
Percentage of consolidated net accounts receivable from related party 5.00% 4.00%