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SUBSEQUENT EVENTS (Narrative) (Details) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Feb. 29, 2020 CNY (¥) shares | Dec. 31, 2019 USD ($) | Dec. 31, 2019 CNY (¥) | Mar. 01, 2020
Beijing MeizhongJiahe Hospital Management Co., Ltd. ("MHM") [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Percentage of ownership by the Company |  | 60.00% | 60.00% |
CITIC Industrial [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Consideration |  | $ 100,549 | ¥ 700,000,000 |
Subsequent Events [Member] | CITIC Industrial [Member] | Beijing MeizhongJiahe Hospital Management Co., Ltd. ("MHM") [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Consideration | ¥ | ¥ 700,000 |  |  |
Shares issued | shares | 38,888,888 |  |  |
Percentage of ownership by the Company | 60.00% |  |  | 50.01%

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