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Segment Reporting (Details 3) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Revenue $ 76,912 $ 63,868 $ 53,853 $ 56,886 $ 55,877 $ 59,711 $ 49,003 $ 45,870 $ 251,519 $ 210,461 $ 229,681
Long-Lived Assets 142,161       138,289       142,161 138,289  
UNITED STATES                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Revenue                 243,295 198,480 $ 229,681
Long-Lived Assets 100,404       102,313       100,404 102,313  
CHINA                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Long-Lived Assets 28,547       22,170       28,547 22,170  
FRANCE                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Revenue                 8,224 11,981  
Long-Lived Assets $ 13,210       $ 13,806       $ 13,210 $ 13,806