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 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Inventory [Line Items]        
Revenues $ 30,393 $ 20,157 $ 54,026 $ 35,904
U.S. revenue
       
Inventory [Line Items]        
Revenues 24,237 15,051 43,424 27,574
Non-U.S. revenue
       
Inventory [Line Items]        
Revenues $ 6,156 $ 5,106 $ 10,602 $ 8,330