Related-Party Transactions (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Related Party Transaction [Line Items]
Current deferred revenue	$ 116,218		$ 116,218		$ 131,850
Non-current deferred revenue	10,155		10,155		16,392
Customers [Member]
Related Party Transaction [Line Items]
Accounts receivable	146		146		230
Current deferred revenue	483		483		461
Non-current deferred revenue	24		24		$ 56
Revenues	$ 170	$ 252	$ 360	$ 472

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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