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FINANCIAL ASSETS AT FAIR VALUE THROUGH PROFIT OR LOSS (Schedule of Movements of Financial Assets at Fair Value) (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥)
Disclosure of financial assets [line items] |  |  |
As of January 1 | ¥ |  |  |
Upon initial recognition of the Equity Investments | ¥ |  | 107,340 |
Fair value adjustment (Note 11) | ¥ |  | 31,334 |
As of December 31 | ¥ |  | ¥ 138,674 |
USD [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
As of January 1 | $ |  |  |
Upon initial recognition of the Equity Investments | $ | 16,436 |  |
Fair value adjustment (Note 11) | $ | 4,798 |  |
As of December 31 | $ | $ 21,234 |  |

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- Definition The amount of current financial assets measured at fair value through profit or loss. [Refer: Financial assets at fair value through profit or loss] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 8 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_8_a&doctype=Standard -URIDate 2020-01-01 + Details
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