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TAXATION (Schedule of Roll-forward of Valuation Allowance) (Details) - CNY (¥) ¥ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Movement of valuation allowance
Balance at beginning of the year	¥ 403,485
Balance at end of the year	278,437	¥ 403,485
Valuation Allowance of Deferred Tax Assets [Member]
Movement of valuation allowance
Balance at beginning of the year	403,485	536,838	¥ 530,358
Allowance made during the year	7,315	10,764	6,480
Decrease due to disposal of subsidiaries	(23,595)	(120,069)	0
Reversals	(108,768)	(24,048)	0
Balance at end of the year	¥ 278,437	¥ 403,485	¥ 536,838

X

- Definition

Amount of decrease in the valuation allowance due to disposal of subsidiaries.

+ References

No definition available.

+ Details

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X

- Definition

The amount of reversals in the period in the valuation allowance for a specified deferred tax asset.

+ References

No definition available.

+ Details

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X

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

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X

- Definition

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

+ References

No definition available.

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X

- Definition

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=84176650&loc=d3e32123-109318

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- Details

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