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Principal Accounting Policies - Revenue recognition, cost of revenues and cash, cash equivalents and time deposits (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 CNY (¥) item | Dec. 31, 2023 USD ($) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2022 USD ($)
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 | ¥ 21,428,902 | $ 3,018,198 | ¥ 24,889,000 |
PRC subsidiaries and VIEs |  |  |  |
Cash, cash equivalents and time deposits |  |  |  |
Cash and cash equivalent and time deposits held by PRC subsidiaries and VIEs | ¥ | ¥ 48,500,000 |  | ¥ 48,100,000 |
Percentage of cash and cash equivalent and time deposits held by PRC subsidiaries and VIEs | 39.30% | 39.30% | 42.60% | 42.60%
Denominated in U.S. dollars |  |  |  |
Cash, cash equivalents and time deposits |  |  |  |
Cash at bank and demand deposits | ¥ 11,100,000 | $ 1,600,000 | ¥ 4,300,000 | $ 623,800
Time deposits | ¥ 61,200,000 | $ 8,600,000 | ¥ 58,600,000 | $ 8,400,000
Less than |  |  |  |
Revenue recognition |  |  |  |
Term of sublicenses of music contents | 3 years |  |  |
Term of advertising service contracts | 3 months |  |  |
Equal to or more than |  |  |  |
Revenue recognition |  |  |  |
Term of sublicenses of music contents | 1 year |  |  |

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