Annual report pursuant to Section 13 and 15(d)

Significant Customer and Geographic Information - Concentration Risk (Details)

v3.3.1.900
Significant Customer and Geographic Information - Concentration Risk (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Concentration Risk [Line Items]      
Accounts receivable - past due & future payments $ 3.1    
Customer A | Sales | Customer Concentration Risk      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 29.00% 24.00% 39.00%
Customer A | Accounts Receivable | Credit Concentration Risk      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 12.00% 63.00%  
Customer B | Sales | Customer Concentration Risk      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 20.00% 17.00% 0.00%
Customer C | Sales | Customer Concentration Risk      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 12.00% 21.00% 15.00%
Customer D | Sales | Customer Concentration Risk      
Concentration Risk [Line Items]      
Concentration Risk, Percentage     14.00%
Customer E | Accounts Receivable | Credit Concentration Risk      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 22.00% 0.00%  
Customer F | Accounts Receivable | Credit Concentration Risk      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 40.00% 0.00%