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PROPERTY, PLANT AND EQUIPMENT, NET - (Narrative) (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017 CNY (¥)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 CNY (¥)	Dec. 31, 2015 CNY (¥)	Dec. 31, 2017 USD ($)
Property, Plant and Equipment [Line Items]
Depreciation of property, plant and equipment	¥ 83,224	$ 12,791	¥ 117,051	¥ 138,075
Property and equipment pledged as collateral	37,481		111,728		$ 5,761
Secured bank borrowings	29,725		78,445		4,569
Equipment under operating lease, cost	519,426		812,207		79,834
Equipment under operating lease, accumulated depreciation	312,853		354,207		48,085
Impairment Write Off	27,906	4,289	4,360	0
Tangible Asset Impairment Charges	21,476	$ 3,301	47,827	¥ 23,125
Redeemable Noncontrolling Interest, Equity, Carrying Amount	396,281		0		60,907
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment pledged as collateral	206,244		0		31,699
Secured bank borrowings	¥ 280,459		¥ 0		$ 43,105

X

- Definition

Amount of impairment which is written off during the period.

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- Definition

Amount of assets pledged to secure a debt instrument.

+ References

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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The amount of accumulated depreciation, by major property class, recorded on property subject to or available for lease as of the balance sheet date.

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Amount before accumulated depreciation of physical assets used in the normal conduct of business to produce goods and services subject to or available for lease.

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As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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Amount of collateralized debt obligations classified as other.

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The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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