Summary of Significant Accounting Policies - Fair value (Details) - CNY (¥) ¥ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Summary of Significant Accounting Policies | |||
| Derivative, Gain (Loss) on Derivative, Net | ¥ 15,820 | ¥ 3,993 | ¥ 3,775 |
| Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Nonoperating Income (Expense) | ||
| Derivative Liability, Current | ¥ 5,300 | ¥ 5,300 | |
| Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration] | Accrued Liabilities and Other Liabilities, Current | Accrued Liabilities and Other Liabilities, Current | |
| Derivative Asset, Current | ¥ 4,200 | ¥ 4,200 | |
| Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration] | Prepaid Expense and Other Assets, Current | Prepaid Expense and Other Assets, Current | |