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LEASE (Lease income) (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 CNY (¥) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2019 USD ($)
Sales-type leases [Member] |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Selling loss recognized at the commencement date |  |  | ¥ (21,229) | $ (3,049)
Interest income on net investment in the lease | ¥ 4,130 | $ 633 | 1,130 | 162
Including: Income relating to variable lease payments not included in the measurement of the net investment in a lease | 4,130 | 633 | 1,130 | 162
Direct financing leases [Member] |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Interest income on net investment in the lease | 2,929 | 449 | 3,944 | 567
Operating leases [Member] |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Lease income relating to lease payments | 45,847 | 7,026 | 53,485 | 7,683
Including: Income relating to variable lease payments not included in the measurement of lease receivable | ¥ 38,999 | $ 5,977 | ¥ 45,887 | $ 6,591

X
- Definition The amount represents interest income on net investment in the lease. + References No definition available. + Details
Name: | ccm_InterestIncomeOnNetInvestmentInLease
Namespace Prefix: | ccm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount represents interest income relating to variable lease payments not included in lease receivable. + References No definition available. + Details
Name: | ccm_InterestIncomeRelatingToVariableLeasePaymentsNotIncludedInLeaseReceivable
Namespace Prefix: | ccm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount represents interest income relating to variable lease payments not included in net investment. + References No definition available. + Details
Name: | ccm_InterestIncomeRelatingToVariableLeasePaymentsNotIncludedInNetInvestment
Namespace Prefix: | ccm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount represents lease income relating to lease payments. + References No definition available. + Details
Name: | ccm_LeaseIncomeRelatingToLeasePayments
Namespace Prefix: | ccm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount represents selling loss recognized at the commencement date. + References No definition available. + Details
Name: | ccm_SellingLossRecognizedAtCommencementDate
Namespace Prefix: | ccm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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. + Details
Name: | us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=ccm_SalesTypeLeasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=ccm_DirectFinancingLeasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=ccm_OperatingLeasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |