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TAXATION - Movement of valuation allowance (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2025 CNY (¥) | Dec. 31, 2025 USD ($) | Dec. 31, 2024 CNY (¥)
TAXATION |  |  |
Balance at the beginning of year | ¥ (751,370) | $ (107,444) | ¥ (623,044)
Change of valuation allowance in the current year | (56,280) | (8,048) | (128,326)
Balance at the end of year | ¥ (807,650) | $ (115,492) | ¥ (751,370)

X
- 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://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
Name: | us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration