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Organization and principal activities (Narrative) (Details) ¥ in Thousands, $ in Thousands |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Nov. 21, 2012 USD ($) shares | Sep. 06, 2011 | Dec. 31, 2015 CNY (¥) entity shares | Dec. 31, 2014 shares | Dec. 31, 2013 shares | Dec. 31, 2010
Organization and principal activities [Line Items] |  |  |  |  |  |
Number of shares issued in exchange for each share held by all existing shareholders of Duowan BVI pursuant to a share swap agreement |  | 1 |  |  |  |
Number of VIEs considered as primary beneficiary | entity |  |  | 2 |  |  |
Total assets of the consolidated VIEs and VIE's subsidiaries | ¥ |  |  | ¥ 3,875,295 |  |  |
Total liabilities of the consolidated VIEs and VIE's subsidiaries | ¥ |  |  | 1,256,755 |  |  |
Registered capital and PRC statutory reserves of the VIEs and VIE's subsidiaries | ¥ |  |  | ¥ 2,584,627 |  |  |
Common shares [Member] |  |  |  |  |  |
Organization and principal activities [Line Items] |  |  |  |  |  |
Number of shares converted into Class B common shares | 548,408,914 |  |  |  |  |
Class A common shares [Member] |  |  |  |  |  |
Organization and principal activities [Line Items] |  |  |  |  |  |
Number of ADS issued and sold in IPO (in shares) | 179,400,000 |  | 26,110,680 | 25,036,140 | 21,256,900 |
Number of common shares represented by each ADS | 20 |  | 20 |  |  |
ADSs [Member] |  |  |  |  |  |
Organization and principal activities [Line Items] |  |  |  |  |  |
Number of ADS issued and sold in IPO (in shares) | 8,970,000 |  |  |  |  |
Net proceeds received from IPO, after deducting commissions and offering expenses | $ | $ 82,055 |  |  |  |  |
Preferred Shares [Member] |  |  |  |  |  |
Organization and principal activities [Line Items] |  |  |  |  |  |
Number of shares converted into Class B common shares | 359,424,310 |  |  |  |  |
Guangzhou Huaduo [Member] |  |  |  |  |  |
Organization and principal activities [Line Items] |  |  |  |  |  |
Equity interest owned (as a percent) |  |  | 100.00% |  |  |
Duowan Entertainment Corporation [Member] | Zhuhai Duowan Technology [Member] |  |  |  |  |  |
Organization and principal activities [Line Items] |  |  |  |  |  |
Equity interest owned (as a percent) |  |  |  |  |  | 100.00%
Huanju Shidai Technology Beijing Company Limited [Member] | Guangzhou Huaduo [Member] | Exclusive Technology Support and Technology Services Agreement [Member] |  |  |  |  |  |
Organization and principal activities [Line Items] |  |  |  |  |  |
Period of prior written notice required to terminate the agreement |  |  | 30 days |  |  |
Huanju Shidai Technology Beijing Company Limited [Member] | Guangzhou Huaduo [Member] | Exclusive Business Cooperation Agreement [Member] |  |  |  |  |  |
Organization and principal activities [Line Items] |  |  |  |  |  |
Period of prior written notice required to terminate the agreement |  |  | 30 days |  |  |
Huanju Shidai Technology Beijing Company Limited [Member] | Guangzhou Huaduo [Member] | Exclusive Option Agreement [Member] |  |  |  |  |  |
Organization and principal activities [Line Items] |  |  |  |  |  |
Term of agreement |  |  | 10 years |  |  |

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