SHARE BASED COMPENSATION - Expense Allocation (Details) - CNY (¥) ¥ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| SHARE BASED COMPENSATION | |||
| Share-based compensation | ¥ 225,727 | ¥ 365,752 | ¥ 862,642 |
| Costs of revenues | |||
| SHARE BASED COMPENSATION | |||
| Share-based compensation | (8,389) | 1,734 | |
| Selling expenses | |||
| SHARE BASED COMPENSATION | |||
| Share-based compensation | (3,010) | 28,439 | |
| General and administration expenses | |||
| SHARE BASED COMPENSATION | |||
| Share-based compensation | ¥ 225,727 | 377,977 | 825,688 |
| Research and development expenses | |||
| SHARE BASED COMPENSATION | |||
| Share-based compensation | ¥ (826) | ¥ 6,781 | |