RESTRICTED NET ASSETS (Details) - 12 months ended Dec. 31, 2022 ¥ in Thousands, $ in Thousands	CNY (¥)	USD ($)
RESTRICTED NET ASSETS
Percentage of after-tax profit to general reserve	10.00%
Amount of net assets restricted	¥ 3,991,644	$ 578,734
Foreign tax authority
RESTRICTED NET ASSETS
Percentage of after-tax profit to general reserve	10.00%
Percentage of general reserve registered capital	50.00%
Domestic tax authority
RESTRICTED NET ASSETS
Percentage of after-tax profit to general reserve	10.00%
Percentage of general reserve registered capital	50.00%

A segregation of retained earnings which is unavailable for dividend distribution. Includes also retained earnings appropriated for loss contingencies.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant