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v3.21.1

Principal Accounting Policies (Details 2) ¥ in Thousands, $ in Thousands, € in Millions, $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 CNY (¥) item | Dec. 31, 2020 USD ($) | Dec. 31, 2020 HKD ($) | Dec. 31, 2020 EUR (€) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2019 USD ($) | Dec. 31, 2019 HKD ($) | Dec. 31, 2019 EUR (€)
Revenue recognition |  |  |  |  |  |  |  |
Number of revenue models used for PC-client game services | item | 2 |  |  |  |  |  |  |
Practical Expedients - financing component | true |  |  |  |  |  |  |
Practical Expedients - costs to obtain a contract | true |  |  |  |  |  |  |
Cash, cash equivalents and time deposits |  |  |  |  |  |  |  |
Cash at bank and demand deposits | ¥ 9,117,219 | $ 1,397,275 |  |  | ¥ 3,246,373 |  |  |
PRC subsidiaries and VIEs |  |  |  |  |  |  |  |
Cash, cash equivalents and time deposits |  |  |  |  |  |  |  |
Cash and cash equivalent and time deposits held by PRC subsidiaries and VIEs | ¥ | ¥ 23,600,000 |  |  |  | ¥ 14,800,000 |  |  |
Percentage of cash and cash equivalent and time deposits held by PRC subsidiaries and VIEs | 27.20% | 27.20% | 27.20% | 27.20% | 25.00% | 25.00% | 25.00% | 25.00%
Denominated in U.S. dollars |  |  |  |  |  |  |  |
Cash, cash equivalents and time deposits |  |  |  |  |  |  |  |
Cash at bank and demand deposits | ¥ 4,392,000 | $ 673,100 |  |  | ¥ 1,580,700 | $ 226,600 |  |
Time deposits | 55,840,000 | $ 8,558,000 |  |  | 30,576,300 | $ 4,382,900 |  |
Denominated in HK dollars |  |  |  |  |  |  |  |
Cash, cash equivalents and time deposits |  |  |  |  |  |  |  |
Cash at bank and demand deposits | 13,800 |  | $ 16.4 |  | 19,000 |  | $ 21.3 |
Denominated in Euro |  |  |  |  |  |  |  |
Cash, cash equivalents and time deposits |  |  |  |  |  |  |  |
Cash at bank and demand deposits | ¥ 10,700 |  |  | € 1.3 | ¥ 2,700 |  |  | € 0.4
Less than |  |  |  |  |  |  |  |
Revenue recognition |  |  |  |  |  |  |  |
Term of advertising service contracts | 3 months |  |  |  |  |  |  |

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