CASH AND CASH EQUIVALENTS AND SHORT-TERM DEPOSITS (Details) - CNY (¥) ¥ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Cash and cash equivalents [abstract]
Cash at bank and on hand	¥ 1,499,462	¥ 1,485,232

The amount of cash on hand and demand deposits. [Refer: Cash on hand]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
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-IssueDate 2021-01-01
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-URIDate 2021-03-24

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