Deferred revenue (Details) ¥ in Thousands, $ in Thousands	Dec. 31, 2016 CNY (¥)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 CNY (¥)
Deferred revenue [Line Items]
Deferred revenue, current	¥ 430,683	$ 62,031	¥ 385,300
Deferred revenue, non-current	25,459	$ 3,667	20,752
Live streaming [Member]
Deferred revenue [Line Items]
Deferred revenue, current	308,545		187,930
Deferred revenue, non-current	12,002		8,757
Online Games [Member]
Deferred revenue [Line Items]
Deferred revenue, current	61,589		81,054
Membership [Member]
Deferred revenue [Line Items]
Deferred revenue, current	47,532		87,483
Deferred revenue, non-current	6,273		11,328
Others
Deferred revenue [Line Items]
Deferred revenue, current	13,017		28,833
Deferred revenue, non-current	¥ 7,184		¥ 667

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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