Summary of Significant Accounting Policies - Convenience translation & Investments (Details) ¥ in Thousands, $ in Thousands |
Dec. 31, 2025
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
|---|---|---|---|
| Letters of guarantee | |||
| Convenience translation | |||
| Net carrying amount | ¥ 3,872,460 | $ 553,754 | ¥ 3,670,176 |
| United States of America, Dollars | |||
| Convenience translation | |||
| Convenience translation rate (USD to RMB) | 1 | 1 | |
| China, Yuan Renminbi | |||
| Convenience translation | |||
| Convenience translation rate (USD to RMB) | 6.9931 | 6.9931 |