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Condensed Consolidated Financial Statement Details - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Property, Plant and Equipment [Abstract]      
Depreciation expense $ 1,800 $ 1,900  
Goodwill 1,300   $ 1,300
Amortization expense related to intangible assets $ 400 $ 33  
Weighted average useful life of purchased intangible assets (in years) 4 years 5 months