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Summary of significant accounting policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Summary of significant accounting policies |
Schedule of Property and Equipment Estimated Useful Life | ​
​ | ​ | ​ | ​ | ​ | ​
​ |  | Estimated useful lives |  | Residual rate |
Servers and network equipment |  | 3-5 years |  | 5 | %
Computer equipment |  | 5 years |  | 5 | %
Furniture, fittings and office equipment |  | 3-5 years |  | 5 | %
Motor vehicles |  | 5 years |  | 5 | %
Leasehold improvements |  | Shorter of lease term or 3 years |  | — | ​
Summary of estimated useful lives of the intangible assets | ​
​ | ​ | ​
​ |  | Estimated useful lives
Land use rights |  | 30 years
Acquired computer software |  | 5 years
Online game licenses |  | 1-3 years
Audio-visual license |  | 9 years
Analysis of Different Types of Revenues | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Revenue from continuing operations | ​ | Years ended December 31,
(In thousands) |  | 2018 |  | 2019 |  | 2020
Subscription revenue |  | 81,877 |  | 81,532 |  | 84,299
Product revenue (note a) |  | 54,604 |  | 8,269 |  | 1,412
Live streaming revenue |  | 31,031 |  | 26,920 |  | 20,866
Advertising revenue |  | 27,781 |  | 15,643 |  | 13,206
Cloud computing service and other internet value-added services (note b) |  | 36,839 |  | 48,903 |  | 66,900
Total |  | 232,132 |  | 181,267 |  | 186,683
​ Notes: (a) Product revenue comprise sales of OneThing Cloud devices and hard disks. (b) Other internet value-added services mainly comprise provision of technical services.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 + Details
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