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RESTRICTED NET ASSETS (Details) - 12 months ended Dec. 31, 2025 ¥ in Thousands, $ in Thousands	CNY (¥)	USD ($)
RESTRICTED NET ASSETS
Percentage of annual after-tax profits to foreign enterprise	10.00%
Percentage of registered capital for mandatory transfer of its after-tax profits by the foreign	50.00%
Percentage of after-tax profit to general reserve	10.00%
Amount of net assets restricted	¥ 3,648,391	$ 521,713
Domestic tax authority
RESTRICTED NET ASSETS
Percentage after-tax profits to domestic enterprise	10.00%
Percentage of registered capital for mandatory transfer of its after-tax profits by the domestic entities	50.00%

X

- Definition

Threshold general reserve balance level as percentage of registered capital for mandatory transfer of its after-tax profits by the domestic entites as per the laws of PRC.

+ References

No definition available.

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- Definition

Minimum threshold percentage of annual after-tax profits required to be transferred to general reserve by domestic enterprise as per the laws of PRC.

+ References

No definition available.

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- Definition

Threshold general reserve balance level as percentage of registered capital for mandatory transfer of its after-tax profits by the foreign entities as per the laws of PRC.

+ References

No definition available.

+ Details

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- Definition

Minimum threshold percentage of annual after-tax profits required to be transferred to general reserve by foreign enterprise as per the laws of PRC.

+ References

No definition available.

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- Definition

Percentage of after-tax profit to general reserve.

+ References

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- 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.

+ References

No definition available.

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- Definition

Amount of accumulated undistributed earnings (deficit) not available for dividend distribution. Includes, but is not limited to, retained earnings appropriated for specific business purpose.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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