Balance Sheet Components - Schedule of Deferred Revenue (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Deferred Revenue [Line Items]
Total deferred revenue	$ 8,946	$ 5,961
Less: current portion of deferred revenue	(8,644)	(5,616)
Noncurrent portion of deferred revenue	302	345
Product
Deferred Revenue [Line Items]
Total deferred revenue	7,900	5,050
Services
Deferred Revenue [Line Items]
Total deferred revenue	$ 1,046	$ 911

The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.

The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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