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COMMITMENTS AND CONTINGENCIES (Narrative) (Details) ¥ in Thousands, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 CNY (¥) | Dec. 31, 2017 CNY (¥) | Dec. 31, 2016 CNY (¥) | Dec. 31, 2018 USD ($)
Loss Contingencies [Line Items] |  |  |  |
Operating Leases, Rent Expense | ¥ | ¥ 37,897 | ¥ 22,617 | ¥ 26,184 |
Shida Ambow [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Restricted Cash | $ |  |  |  | $ 27.7

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