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TAXATION (Schedule of Movement of Valuation Allowance) (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥)
TAXATION |  |  |
Balance at the beginning of year | $ (31,181) | ¥ (217,076) | ¥ (157,876)
Change of valuation allowance in the current year | (6,288) | (43,773) | (59,200)
Balance at the end of year | $ (37,469) | ¥ (260,849) | ¥ (217,076)

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- Definition Amount of valuation allowance on deferred tax assets. + References No definition available. + Details
Name: | ccm_DeferredTaxValuationAllowance
Namespace Prefix: | ccm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=116821951&loc=d3e32123-109318 + Details
Name: | us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration