FAIR VALUE MEASUREMENT - Additional information (Details) - CNY (¥) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| FAIR VALUE MEASUREMENT | |||
| Impairment of acquired intangible assets and long-lived assets | ¥ 0 | ¥ 53,400,000 | ¥ 0 |
| Impairment of goodwill | 116,332,000 | 98,196,000 | |
| Significant other unobservable inputs (Level 3) | |||
| FAIR VALUE MEASUREMENT | |||
| Impairment of goodwill | ¥ 116,300,000 | ¥ 98,200,000 | ¥ 93,400,000 |
| X | ||||||||||
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|