Annual report pursuant to Section 13 and 15(d)

Concentration of Risk, Segment and Geographic Information - Additional Information 1 (Details)

v3.3.1.900
Concentration of Risk, Segment and Geographic Information - Additional Information 1 (Details) - Customer Concentration Risk [Member] - Customer
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Revenues [Member]      
Concentration Risk [Line Items]      
Number of major customers 1 2 3
Revenues [Member] | Customer 1 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage (in hundredths) 67.00% 51.00% 43.00%
Revenues [Member] | Customer 2 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage (in hundredths)   28.00% 26.00%
Revenues [Member] | Customer 3 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage (in hundredths)     20.00%
Accounts Receivable [Member]      
Concentration Risk [Line Items]      
Number of major customers 4 3  
Accounts Receivable [Member] | Customer 1 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage (in hundredths) 39.00% 44.00%  
Accounts Receivable [Member] | Customer 2 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage (in hundredths) 25.00% 34.00%  
Accounts Receivable [Member] | Customer 3 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage (in hundredths) 18.00% 12.00%  
Accounts Receivable [Member] | Customer 4 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage (in hundredths) 10.00%