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PREPAID LAND LEASE PAYMENTS (Narrative) (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017 CNY (¥)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 CNY (¥)	Dec. 31, 2015 CNY (¥)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Operating Leased Assets [Line Items]
Amortization of intangible assets	¥ 5,256	$ 808	¥ 1,195	¥ 1,090
Prepaid Expense Other, Noncurrent	456,823		445,444		$ 70,212	$ 0
Debt Instrument, Collateral Amount	37,481		111,728		5,761
Secured Debt, Other	29,725		¥ 78,445		4,569
Redeemable Noncontrolling Interest, Equity, Redemption Value	396,281				60,907	$ 0
Wuxi Concord Medical Development Ltd [Member]
Operating Leased Assets [Line Items]
Prepaid Expense Other, Noncurrent	¥ 11,379				$ 1,749

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- Definition

The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

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Amount of assets pledged to secure a debt instrument.

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Carrying amount as of the balance sheet date of amounts paid in advance which will be charged against earnings in periods after one year or beyond the operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Redemption value, as if currently redeemable, of redeemable noncontrolling interest classified as temporary equity and the election has been made to accrete changes in redemption value to the earliest redemption date.

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