Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Breakdown of the Company Revenue (Details)

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Summary of Significant Accounting Policies - Breakdown of the Company Revenue (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Concentration Risk [Line Items]        
Revenues $ 29,393 $ 19,777 $ 83,419 $ 55,681
U.S.
       
Concentration Risk [Line Items]        
Revenues 22,571 15,194 65,996 42,768
Non U.S.
       
Concentration Risk [Line Items]        
Revenues $ 6,822 $ 4,583 $ 17,423 $ 12,913