Annual report pursuant to Section 13 and 15(d)

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

v3.6.0.2
Concentration of Risk, Segment and Geographic Information - Additional Information 1 (Details) - Customer Concentration Risk [Member] - Customer
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Revenues [Member]      
Concentration Risk [Line Items]      
Number of major customers 3 1 2
Revenues [Member] | Customer 1 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage (in hundredths) 27.00% 67.00% 51.00%
Revenues [Member] | Customer 2 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage (in hundredths) 22.00%   28.00%
Revenues [Member] | Customer 3 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage (in hundredths) 19.00%    
Accounts Receivable [Member]      
Concentration Risk [Line Items]      
Number of major customers 1 4  
Accounts Receivable [Member] | Customer 1 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage (in hundredths) 85.00% 39.00%  
Accounts Receivable [Member] | Customer 2 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage (in hundredths)   25.00%  
Accounts Receivable [Member] | Customer 3 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage (in hundredths)   18.00%  
Accounts Receivable [Member] | Customer 4 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage (in hundredths)   10.00%