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Accrued Expenses and Other Current Liabilities (Details) ¥ in Thousands, $ in Thousands | Dec. 31, 2023 CNY (¥) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2021
--- | --- | --- | --- | ---
Payables and Accruals [Abstract] |  |  |  |
Salaries and welfare payables | ¥ 195,014 |  | ¥ 166,923 |
Payables for purchase of property and equipment | 179,839 |  | 102,181 |
Accrued expenses | 65,159 |  | 41,558 |
Current portion of operating lease liabilities | ¥ 34,993 |  | ¥ 34,975 |
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Total | Total | Total | Total
VAT and other tax payables | ¥ 19,847 |  | ¥ 5,903 |
Advances from employees | 3,472 |  | 4,962 |
Total | ¥ 498,324 | $ 70,188 | ¥ 356,502 |

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