Annual report pursuant to Section 13 and 15(d)

Property, Plant, and Equipment, net - Deprecation Expense (Details)

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Property, Plant, and Equipment, net - Deprecation Expense (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Property, Plant and Equipment [Line Items]      
Total depreciation expense $ 3,903 $ 1,225 $ 834
Cost of sales
      
Property, Plant and Equipment [Line Items]      
Total depreciation expense 1,113 0 0
Product development
      
Property, Plant and Equipment [Line Items]      
Total depreciation expense 71 0 0
General and administrative
      
Property, Plant and Equipment [Line Items]      
Total depreciation expense $ 2,719 $ 1,225 $ 834