Aggregate dividends declared during the period for each share of common stock outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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Date the dividend to be paid was declared, in CCYY-MM-DD format.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
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Date the declared dividend will be paid, in CCYY-MM format.

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- Definition

The cash outflow to reacquire common and preferred stock.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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-Subparagraph (a)
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Price of a single share of a number of saleable stocks of a company.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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SHAREHOLDERS' EQUITY (Narrative) (Details) $ / shares in Units, ¥ in Thousands, $ in Thousands							1 Months Ended		12 Months Ended
	Dec. 11, 2015 $ / shares	Sep. 30, 2015 CNY (¥)	Sep. 30, 2015 USD ($)	Aug. 10, 2015 USD ($) $ / shares	Jul. 28, 2014 $ / shares	Jan. 07, 2014 $ / shares	Nov. 30, 2014 CNY (¥)	Apr. 30, 2014 CNY (¥)	Dec. 31, 2016 CNY (¥) shares	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($) shares
Consideration to repurchase shares \| $										$ 4,542	$ 3,111
Date declared					Jul. 28, 2014	Jan. 07, 2014
Amount of dividend paid		¥ 288,157	$ 41,503				¥ 251,979	¥ 201,583	¥ 285,829	$ 41,168
Special dividend per share					$ 0.30	$ 0.24
Dividends payable, date to be paid					2014-11	2014-04
Ordinary shares [Member]
Shares repurchased \| shares									2,902,224	2,902,224	1,842,099
Special dividend per share	$ 0.33
American Depositary Shares [Member]
Shares repurchased \| shares									967,408	967,408	614,033
American Depositary Shares [Member] \| Maximum [Member]
Consideration to repurchase shares \| $				$ 20,000
Price per share				$ 7.99