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Balance Sheet Details - Intangible Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, Gross $ 54,121 $ 32,835
Less accumulated amortization (27,713) (27,587)
Intangible assets, net $ 26,408 5,248
Developed product technology    
Finite-Lived Intangible Assets [Line Items]    
Useful lives 10 years  
Intangible assets, Gross $ 26,976 13,876
Intellectual property    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, Gross $ 1,004 1,004
License agreements    
Finite-Lived Intangible Assets [Line Items]    
Useful lives 1 year  
Intangible assets, Gross $ 5,064 5,738
Trademarks and trade names    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, Gross $ 792 732
Customer-related    
Finite-Lived Intangible Assets [Line Items]    
Useful lives 5 years  
Intangible assets, Gross $ 7,458 7,458
Distribution network    
Finite-Lived Intangible Assets [Line Items]    
Useful lives 4 years  
Intangible assets, Gross $ 4,027 $ 4,027
In process research and development    
Finite-Lived Intangible Assets [Line Items]    
Useful lives 19 years  
Intangible assets, Gross $ 8,800