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FAIR VALUE MEASUREMENT - RECONCILIATION OF THE ASSETS AND LIABILITIES (Details) - Recurring basis - Significant Unobservable Inputs (Level 3) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2015 CNY (¥)	Dec. 31, 2014 CNY (¥)
Available-for-sale
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation [Roll Forward]
Balance			¥ 5,903
Settlement		¥ (67,507)
Foreign exchange translation adjustments		223	(381)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance		78,378
Recognized during the period			61,548
Realized or unrealized loss		(11,094)	11,308
Balance			78,378
Contingent consideration payable
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation [Roll Forward]
Balance		53,592	11,974
Recognized during the period		17,202	32,953
Realized or unrealized loss		(7,010)	13,749
Settlement		(42,641)	(4,923)
Foreign exchange translation adjustments		2,195	(161)
Balance	$ 3,603	¥ 23,338	¥ 53,592

X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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Amount of foreign exchange translation adjustments as a liability measured on a recurring basis using significant unobservable inputs(level 3).

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Fair value of assets measured at fair value on a recurring basis using significant unobservable inputs(level 3) that was recognized during the reporting period.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount of gain (loss) recognized in other comprehensive income (loss) for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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-Section 50
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Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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