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Short-term Investments (Details) - CNY (¥) ¥ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Short-term Investments |  |  |
Cost | ¥ 4,275,329 | ¥ 7,563,805 |
Unrealized Gains | 160,728 | 58,868 |
Estimated Fair Value | ¥ 4,436,057 | ¥ 7,622,673 |
Investment, Type [Extensible Enumeration] | Short-term Investments [Member] | Short-term Investments [Member] |
Investment income related to short-term investments | ¥ 414,200 | ¥ 342,600 | ¥ 639,800
Equal to or more than |  |  |
Short-term Investments |  |  |
Short-term investments, effective yields (as a percent) | 1.85% | 1.72% |
Investment, Type [Extensible Enumeration] | Short-term Investments [Member] | Short-term Investments [Member] |
Less than |  |  |
Short-term Investments |  |  |
Short-term investments, effective yields (as a percent) | 8.31% | 5.00% |
Investment, Type [Extensible Enumeration] | Short-term Investments [Member] | Short-term Investments [Member] |

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