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ACQUISITIONS AND DISPOSALS (Narrative) (Details) ¥ in Thousands, $ in Thousands |  |  |  | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 24, 2015 CNY (¥) | Jun. 30, 2015 | Apr. 06, 2015 CNY (¥) Bed | Apr. 06, 2015 SGD ($) Bed | Oct. 18, 2017 CNY (¥) | Oct. 18, 2017 USD ($) | Sep. 29, 2016 CNY (¥) | Sep. 29, 2016 USD ($) | Jan. 27, 2016 CNY (¥) | Jan. 27, 2016 USD ($) | Dec. 18, 2007 CNY (¥) | Dec. 31, 2017 CNY (¥) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 CNY (¥) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 CNY (¥) | Dec. 31, 2017 USD ($) | Oct. 18, 2017 USD ($) | Apr. 06, 2017 CNY (¥) | Apr. 06, 2017 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Recognized a gain on the disposal |  |  |  |  |  |  |  |  |  |  |  | ¥ 58,913 | $ 9,055,000 | ¥ 0 |  | ¥ 16,381 |  |  |  |
Total consideration |  |  |  |  |  |  | ¥ 41,670 | $ 6,002,000 |  |  |  |  |  | ¥ 100,000 | $ 14,403,000 |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  |  |  | 20.00% |  | 20.00% |  | 20.00% | 20.00% |  |  |
Other Payments to Acquire Businesses |  |  |  |  |  |  |  |  |  |  | ¥ 29,600 |  |  |  |  |  |  |  |  |
Payments to Fund Operations of Acquiree |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 1,000 |  |  |  |
Payments to Acquire Other Productive Assets |  |  |  |  |  |  |  |  |  |  |  | ¥ 6,705 | $ 1,031,000 | ¥ 3,025 |  | 0 |  |  |  |
Deposits Assets, Noncurrent |  |  |  |  |  |  |  |  |  |  |  | 266,180 |  | ¥ 268,747 |  |  | $ 40,911,000 |  |  |
Subscribed Amount to be Injected in Acquisition of Equity Interest | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 388,500
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 55.00% | 55.00%
Gain Loss On Disposal Beijing Century Friendship and BPMC |  |  |  |  |  |  |  |  |  |  |  | ¥ 58,854 |  |  |  |  | $ 9,046,000 |  | ¥ 58,854 | $ 9,046,000
Guofu Huimei [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  |  |  |  |  |  |  |  |  |  |  | 20.41% |  |  |  |  | 20.41% |  |  |
JWYK [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Date of completion of disposal |  | Jul. 24, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Recognized a gain on the disposal | ¥ 16,381 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of equity interest transferred |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration | ¥ 22,160 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allcure Information [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Recognized a gain on the disposal |  |  |  |  | ¥ 59 | $ 9,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage | 20.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration |  |  |  |  | ¥ 3 |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  |
Beijing Century Friendship and BPMC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  |  |  |  |  |  |  |  |  |  |  | 21.69% |  |  |  |  | 21.69% |  | 78.31% | 78.31%
CHS [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Voting interest acquired |  |  | 100.00% | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of bed patient capacity | Bed |  |  | 31 | 31 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total consideration |  |  | ¥ 253,499 | $ 55,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on a bargain purchase recognized |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,830 |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  | 100.00% | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beijing Proton Medical Center [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Voting interest acquired |  |  |  |  |  |  |  |  | 55.00% | 55.00% |  |  |  |  |  |  |  |  |  |
Total consideration |  |  |  |  |  |  |  |  | ¥ 100,600 |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  |  |  |  |  | 55.00% | 55.00% |  |  |  |  |  |  |  |  |  |
Payments to Acquire Other Productive Assets |  |  |  |  |  |  |  |  | ¥ 99,851 | $ 14,382,000 |  |  |  |  |  |  |  |  |  |
Deposits Assets, Noncurrent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 70,000 |  |  |  |

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