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Financial Statement Details - Summary of Inventories (Detail) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Finished goods $ 19,277 $ 47,094
Raw materials and components 11,865 8,743
Total inventory $ 31,142 $ 55,837