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Summary of significant accounting policies (Tables) | 12 Months Ended
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Dec. 31, 2014
Accounting Policies [Abstract] |
Schedule of Property and Equipment Estimated Useful Life | Property and equipment are stated at historical cost less accumulated depreciation and impairment loss, if any. Depreciation is calculated using the straight-line method over their estimated useful lives. Residual rate is determined based on the economic value of the asset at the end of the estimated useful life as a percentage of the original cost.
|  | Estimated useful lives |  |  | Residual rate |
Servers and network equipment |  |  | 5 years |  |  |  | 5 | %
Computer equipment |  |  | 5 years |  |  |  | 5 | %
Furniture, fittings and office equipment |  |  | 5 years |  |  |  | 5 | %
Motor vehicles |  |  | 5 years |  |  |  | 5 | %
Leasehold improvements |  |  | shorter of lease term or 3 years |  |  |  | — |
Analysis of Different Types of Revenues | An analysis of the different types of revenues for the years ended December 31, 2012, 2013 and 2014 are summarized as follows:
|  | Years ended December 31, |
(In thousands) |  | 2012 |  |  | 2013 |  |  | 2014 |
Subscription revenue |  |  | 51,055 |  |  |  | 86,733 |  |  |  | 98,189 |
Advertising revenue |  |  | 61,795 |  |  |  | 48,028 |  |  |  | 38,378 |
Other internet value-added services (note a) |  |  | 35,350 |  |  |  | 45,483 |  |  |  | 46,320 |
Total |  |  | 148,200 |  |  |  | 180,244 |  |  |  | 182,887 |
note a: |  | Other internet value-added services mainly comprise online game revenue, content sub-licensing revenue, pay per view subscription revenue, revenue from traffic referral programs, technical services regarding online acceleration, online sales revenue, online game subscription revenue and sales of software licenses.
Schedule of Balances of Registered Capital, Additional Paid-in-Capital and Statutory Reserves | The following table presents the balances of registered capital, additional paid-in-capital and statutory reserves of entities within the Group incorporated in China as of December 31, 2013 and 2014 for the Group’s reporting purpose in China as determined under generally accepted accounting principles in China:
(In thousands) |  | December 31, 2013 |  |  | December 31, 2014 |
Registered capital |  |  | 44,532 |  |  |  | 54,467 |
Additional paid-in capital |  |  | 161 |  |  |  | 161 |
Statutory reserves |  |  | 4,478 |  |  |  | 5,132 |
Total |  |  | 49,171 |  |  |  | 59,760 |

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8721-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8813-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8736-108599 + Details
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