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Select Condensed Consolidated Balance Sheet Details - Accounts Receivable, Net (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Balance Sheet Related Disclosures [Abstract]    
Accounts receivable $ 15,190 $ 19,870
Allowance for doubtful accounts (978) (1,358)
Accounts receivable, net $ 14,212 $ 18,512