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Condensed Consolidated Financial Statement Details - Purchased Intangible Assets, net (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Acquired Finite-Lived Intangible Assets [Line Items]    
Cost $ 7,986 $ 7,986
Accumulated Amortization (1,714) (1,353)
Total 6,272 6,633
Developed technology    
Acquired Finite-Lived Intangible Assets [Line Items]    
Cost 5,050 5,050
Accumulated Amortization (758) (505)
Total 4,292 4,545
Patents    
Acquired Finite-Lived Intangible Assets [Line Items]    
Cost 2,936 2,936
Accumulated Amortization (956) (848)
Total $ 1,980 $ 2,088